Answer:
A
Step-by-step explanation:
sin 82 I think but i just try
8,320 to 10,399 114,192 10,400 to 15,599 148,276 15,600 to 20,799 123,638 20,800 to 25,999 121,623 26,000 to 31,199 103,402 31,200 to 36,399 73,463 36,400 to 41,599 59,126 41,600 to 51,999 68,747 52,000 to 77,999 56,710 1. What is the modal-class interval? 2. Copy the table into your notebook and include columns to find the upper pulative frequencies and cumulative percentages.
Answer:
Copy the table into your notebook and include columns to find the endpoint (upper value) for each interval. Figure out the cumulative frequency and
Step-by-step explanation:
4) Daniella and Brayan have a joint checking account. They have a balance of $3,839.25 in the check register. The balance on the bank statement is $3,450.10. Not reported on the statement are deposits of $2,000, $135.67, $254.77, and $188.76 and four checks for $567.89, $23.83, $598.33, and $1.000. Reconcile the bank statement.
End Balance: $3,839.25 + $2,579.20 - $2,190.05 = $5,735.15, so the reconciled balance of $5,735.15.
What is bank reconciliation theory?This theory is used to compare the bank statements to the check register in order to properly reconcile the two balances.
The theory used in this question is the bank reconciliation theory.
Step 1: Begin by looking at the two balances - the check register balance and the bank statement balance.
In this case, the check register balance is $3,839.25 and the bank statement balance is $3,450.10.
Step 2: Add up all of the deposits that are not reported on the bank statement. In this case, the deposits are $2,000, $135.67, $254.77, and $188.76.
Step 3: Subtract all of the checks that are not reported on the bank statement. In this case, the checks are $567.89, $23.83, $598.33, and $1,000.
Step 4: Add the deposits and subtract the checks from the check register balance.
In this case, the check register balance ($3,839.25) plus the deposits ($2,579.20) minus the checks ($2,190.05) gives a reconciled balance of $5,735.15.
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In ΔGHI, g = 75 inches, mm∠H=151° and mm∠I=7°. Find the length of h, to the nearest 10th of an inch.
The triangle has length of the side h is equal to 97.1 inches approximately to the nearest tenth, using the sine rule.
What is the sine ruleThe sine rule is a relationship between the size of an angle in a triangle and the opposing side.
For the triangle ΔGHI, by sine rule;
g/sinG = h/sinH = i/sinI
We first derive the angle G as follows:
151° + 7° + G = 180° {sum of interior angles of a triangle}
G = 180° - 158
G = 22°
Hence by sine rule;
75/sin22° = h/sin151°
h = (75 × sin151°)/sin22° {cross multiplication}
h = 97.1
Therefore, by application of the sine rule we have the length of the side h = 97.1 inches approximately to the nearest tenth
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Select the correct answer. What is the solution for x in the equation? -4 + 5x − 7 = 10 + 3x − 2x A. x = 4 21 B. x = 4 13 C. x = 13 4 D.
4. A model kit for the Dornier Do17 airplane has a wingspan of approximately 10 inches. If the kit has a
scale of 1 inch to 72 inches, what is the wingspan of the actual Dornier Do17? Show all your work.
Answer: If the model kit for the Dornier Do17 airplane has a wingspan of 10 inches and the scale of the kit is 1 inch to 72 inches. This means that for every inch on the model, the equivalent measurement on the actual Dornier Do17 airplane is 72 inches.
We know that the wingspan of the model is 10 inches and we want to find the actual wingspan of the airplane so we'll use the scale factor of 1:72
To find the actual wingspan, we'll multiply the wingspan of the model by the scale factor.
10 inches * 72 inches/1 inch = 720 inches
Therefore, the actual wingspan of the Dornier Do17 airplane is 720 inches or 60 feet.
Step-by-step explanation:
A toy car and a battery together costs £44. The ratio of the cost of the car to the battery is 10:1. How much did the battery cost?
Answer:
4,4
Step-by-step explanation:
44x1/10
which scenarios are better represented by an equation in standard form vs. y=mx+b
The standard form is used to show horizontal lines and vertical lines, while the slope intercept form shows the slope and y intercept of the linear equation.
What is an equation?An equation is an expression relating two or more numbers and variables.
The standard form of a linear equation is:
Ax + By = C
where A, B and C are constants
The slope - intercept form of a linear equation is:
y = mx + b
Where m is the rate of change(slope) and b is the y intercept.
The standard form is used to show horizontal lines (A=0) and vertical lines (B=0), while the slope intercept form shows the slope and y intercept.
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Given the function: 1/(x + 1) - 4:
a. State the Domain using INTERVAL notation
b. State the Range using INTERVAL notation
c. Are there any asymptotes? If so, state their equations and draw them on the graph as dotted lines
Answer:
a) (-∞, -1) ∪ (-1, ∞)
b) (-∞, -4) ∪ (-4, ∞)
c) Vertical asymptote: x = -1
Horizontal asymptote: y = -4
Step-by-step explanation:
Given function:
[tex]f(x)=\dfrac{1}{x+1}-4[/tex]
Part (a)The domain of a function is the set of all possible input values (x-values).
When the denominator of a rational function is zero, the function is undefined.
Rewrite the function as one fraction:
[tex]\implies f(x)=\dfrac{1}{x+1}-\dfrac{4(x+1)}{x+1}[/tex]
[tex]\implies f(x)=\dfrac{1-4(x+1)}{x+1}[/tex]
[tex]\implies f(x)=\dfrac{-4x-3}{x+1}[/tex]
Set the denominator to zero and solve for x:
[tex]\implies x+1=0[/tex]
[tex]\implies x=-1[/tex]
Therefore, the given function is undefined when x = -1, so its domain in interval notation is:
(-∞, -1) ∪ (-1, ∞)Part (b)The range of a function is the set of all possible output values (y-values).
As the domain is restricted to (-∞, -1) ∪ (-1, ∞), the range is also restricted.
To find the range of a rational function, first solve the equation for x:
[tex]\implies y=\dfrac{1}{x+1}-4[/tex]
[tex]\implies y+4=\dfrac{1}{x+1}[/tex]
[tex]\implies (y+4)(x+1)=1[/tex]
[tex]\implies x+1=\dfrac{1}{y+4}[/tex]
[tex]\implies x=\dfrac{1}{y+4}-1[/tex]
[tex]\implies x=\dfrac{1-(y+4)}{y+4}[/tex]
Set the denominator of the resultant equation ≠ 0 and solve for y:
[tex]\implies y+4 \neq 0[/tex]
[tex]\implies y \neq -4[/tex]
Therefore, the range is the set of all real numbers other than y = -4:
(-∞, -4) ∪ (-4, ∞)Part (c)A vertical asymptote occurs at the x-value(s) that make the denominator of a rational function zero.
Therefore, there is a vertical asymptote at x = -1.
As the degree of the numerator is equal to the degree of the denominator, the horizontal asymptote is the result of dividing the highest degree term of the numerator by the highest degree term of the denominator.
[tex]\implies f(x)=\dfrac{-4x-3}{x+1}[/tex]
Therefore, there is a horizontal asymptote at:
[tex]y=\dfrac{-4}{1}=-4[/tex]There are no slant asymptotes as there is a horizontal asymptote.
A red and a blue die are thrown. Both dice are fair. The events A and B are defined as follows:
A: The blue die shows a number greater than 2.
B: The red die shows a number less than 5
What is p(A|B)? (Round to four decimal places.)
P(A|B) read as the probability of the event A given the event B is equal to 0.5000 rounded up to four decimal place.
What is conditional probabilityConditional probability is known as the possibility of an event or outcome happening, based on the existence of a previous event or outcome. The conditional probability P(A|B) occur only in the case of dependent events. It gives the conditional probability of A given that B has occurred.
P(A|B) = P(A∩B) / P(B)
P(A∩B) = Probability of happening of both A and B
When a die is rolled, the sample space = {1, 2, 3, 4, 5, 6}.
A is the event the blue die shows a number greater than 2, So;
A = {3, 4, 5, 6}
B is the event the red die shows a number less than 5. So;
B = {1, 2, 3, 4}.
Then A∩B = {3, 4}
P(A∩B) = 2/6 = 1/3
P(B) = 4/6 = 2/3
P(A|B) = 1/3 ÷ 2/3
P(A|B) = 1/3 × 3/2 {changing division to multiplication}
P(A|B) = 1/2
Therefore, the conditional probability of the event A given the event B denoted by P(A|B) is equal to 1/2 or 0.5000 to four decimal place.
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What is the slope for this
Answer:
-3
Step-by-step explanation:
rise over run method
3 up and 1 to the left which makes the slope negative
There are 80 Students in the marching band.
Can they match in 2,5, and /or 10 equal rows? Explain.
Answer:
Step-by-step explanation: Yes, they can match in 2, 5, and/or 10 equal rows. This is because the number of items in the set can be divided evenly by 2, 5, and 10. For example, if there are 20 items in the set, it can be divided into 2 rows of 10, 5 rows of 4, or 10 rows of 2.
Use the graph of y=f(x) to
A. Determine f(-1)
B. Find the range of f.
(A) f(-1) = 1
(B) The range of the function f(x) is [-4, ∞).
What is the range of the function?
In mathematics, a function's range can refer to one of two closely related ideas: Its codomain is a function. The picture of the action Given two sets X and Y, a binary relation f between them is a function if and only if there is precisely one y in Y such that f connects x to y for every x in X.
For the given function we have to find the value of f(-1) and to find the range of the function.
From graph we can see that,
f(-1) = 1
The range of the function is the interval in which function cover the x - axis.
The range of the function is [-4, ∞).
Hence,
(A) f(-1) = 1
(B) The range of the function f(x) is [-4, ∞).
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Which of the following describes the domain and range of the function?
The domain and range of the piecewise function is;
B) Domain: x < 2 or x ≥ 3.; range: y > -3
What is the domain and range of the function?The piecewise function is given as;
f(x) = {-¹/₂x - 2, if x < 2
{2x - 4, if x ≥ 3
The domain of a function is the set of all possible input values of the function and as such in this case the domain is x < 2 or x ≥ 3.
The range is defined as the set of all possible output values of the function and in this case, we have;
For -¹/₂x - 2; If x < 2
At x = 2; -¹/₂(2) - 2 = -3
Range is; y > -3
Similarly, for 2x - 4, if x ≥ 3
At x = 3; 2(3) - 4 = 2
Range is; y ≥ 2
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Can somebody please tell me how do we solve this? Thank you.
The correct option is E. the roots of the auxiliary equation are √6 and -√6.
What are Differential Equations?Differential equations are defined as the equations in which consist of one or more terms which consist of the a dependent variable and it's derivatives with respect to the independent variable.
Given differential equation,
[tex]\frac{d^{2} y}{dx^{2} }[/tex] - 6y = 0
This can be also written as,
y'' - 6y = 0, where y'' indicates the second derivative of y.
Auxiliary equation is the polynomial equation which is found by replacing the right member of a standard differential equation by zero.
To find the roots of auxiliary equation can be found by,
Let m = y', then m² = y''
m² - 6 = 0
m² = 6
m = ± √6
So the roots are √6 and -√6.
Hence the roots of the auxiliary equation of the given differential equation are √6 and -√6.
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if x/y=z/w then show that x^m+y^m+z^m+w^m/x^m+y^-m+z^-m+w^-m= (xyzw)^m/2
On solving the provided question we can say that the inequality equation can solved as = [tex]\sqrt[4]{xyzw}[/tex]
What is inequality?An inequality in mathematics is a relationship between two expressions or values that is not equal. Thus, imbalance leads to inequality. An inequality creates the link between two values that are not equal in mathematics. Egality is distinct from inequality. When two values are not equal, most commonly use the not equal sign (). Different inequalities are used to contrast values, no matter how little or large. Many simple inequalities may be resolved by modifying the two sides until the variables are all that remain. But a number of things contribute to inequality: Negative values on both sides are divided or added. Trade off the left and right.
here,
the inequality equation can solved as
[tex]x^m+y^m+z^m+w^m/x^m+y^-m+z^-m+w^-m= (xyzw)^{m/2}[/tex]
[tex]u = x+y/2 \geq \sqrt{xy}[/tex]
v = z+w /2 [tex]\geq \sqrt{zw}[/tex]
u+v/2 = x+y+z+w+/4 [tex]\geq \sqrt{uw} \geq \sqrt{\sqrt{xy} \sqrt{zw} }[/tex]
= [tex]\sqrt[4]{xyzw}[/tex]
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Find four pairs of integers that add up to 1.
Answer:
5 & -4
4 & -3
3 & -2
2 & -1
Step-by-step explanation:
5 + (-4) = 1
4 + (-3) = 1
3 + (-2) = 1
2 + (-1) = 1
h(t)=-16t^(2)+130t+2 how many seconds does the ball attain its height round to the nearest hundredth
The number of seconds that the ball attains its height round to the nearest hundredth will be 4.06 seconds.
What are the maxima and minima of a function?For the maximum value of the function if f''(x) < 0 and for the minimum value of the function if f''(x) > 0.
The maximum and minimum value of the function is at f'(x) = 0.
The function is given below.
h(t) = -16t² + 130t + 2
Differentiate the function with respect to t. Then we have
h'(t) = -32t + 130
h'(t) = 0
- 32t + 130 = 0
t = 130 / 32
t = 4.0625 seconds
The number of seconds that the ball attains its height round to the nearest hundredth will be 4.06 seconds.
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1. Antonio sets his remote-controlled car at the start of the racetrack and starts its run on the track. His car stops 10m past the starting line. After he fixes a wheel, the car goes 2/5 the racetrack’s total distance and then stops for good. It is 38m from the starting line. How long is the racetrack? (a) Let x = the length of the racetrack. Write an equation that fits the story (b) Solve the equation from Part a. (How long is the racetrack?) Show your work. (c) How much farther did Antonio’s car have to go to the finish line? Show your work.
The total length of the race track that Antonio remote controlled car runs on is 70 m.
What is an equation?An equation is an expression that shows how numbers and variables relate with each other.
Equations can either be linear, quadratic and so on depending on the degree of the polynomial
Let x represent the length of the racetrack.
Antonio car stops 10m past the starting line. After he fixes a wheel, the car goes 2/5 the racetrack’s total distance. It can be represented by the equation:
(2/5)x + 10 = 38
(2/5)x = 28
x = (28 * 5)/2
x = 70
The length of the race track is 70 m.
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"Find all the second partial derivatives
f(x,y)= sin^(2) (mx+ny)"
Therefore , the solution to the given problem of derivative comes out to be 2cos(mx+ny) for both the cases of partial derivative.
Define derivative.The definition of a derivative is the simultaneous change that occurs at a certain place. Implicit & explicit functions are typically distinguished from one another. Explicit functions are those where the value of the known individual entity "x" directly determines the value of the known dependent variable "y."
Here,
Given : f(x,y)= sin^(2) (mx+ny)"
Partial derivative with respect to x
=> dx/dy = 2sin (mx+ ny) *m
=> d²x/dy = 2cos(mx+ny)
Partial derivative with respect to y
=> dx/dy = 2sin (mx+ ny) *n
=> d²x/dy = 2cos(mx+ny)
Therefore , the solution to the given problem of derivative comes out to be 2cos(mx+ny) for both the cases of partial derivative.
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Create Write a real-world problem that could be represented by the equation 12(x+2.50)=78 .
Algebraic expression explaining real world problem is - A store is having a sale where all items are marked down 12% and an additional $2.50 is taken off the final price.
If a customer wants to find out the original price of an item before the sale, they can use the equation 12(x+2.50)=78, where x is the original price of the item.
What are algebraic expressions?Algebraic expressions are known as expressions made up of :
VariablesConstantsAddition,SubtractionDivisionOther algebraic operationsWhat are some examples of algebraic expression?A mathematical statement with variables, constants, coefficients, and algebraic operations is known as an algebraic expression. A good example of an algebraic expression is 5x2+6xyc. Algebraic expressions do not use equal signs, in contrast to algebraic equations. In contrast, since they are not derived from integer constants and algebraic operations, transcendental numbers like and e are not algebraic.
A real-world problem:A store is having a sale where all items are marked down 12% and an additional $2.50 is taken off the final price. If a customer wants to find out the original price of an item before the sale, they can use the equation 12(x+2.50)=78, where x is the original price of the item.
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solve for x, given the rectangle below TNREO to= 3x+1 ro=2x+4
Answer:
Step-by-step explanation:
The length of the two diagonals of a rectangle are said to be equivalent.
From the Pythagorean theorem, the diagonal (a) will be the hypotenuse in the equation and the length (b) and width (c) will be its opposite and adjacent.
From the figure given, the length of half of two diagonal of rectangles are given.
We can simply solve for the value of x
Solution:TO = RO
3x + 1 = 2x + 4 (combine like terms by first transposing it to the other side of the equation and changing its sign from (+) to (-) or vice versa).
3x - 2x = 4 - 1
x = 3
find the derivative of the function. f(x) = (5x6 + 4x3)4
The derivate of function f(x)=(5x⁶+4x³)⁴is F'(x) = 4(30x³+12x²)(5x⁶+4x³)³
The derivative of a function f(x) represents its rate of change and is denoted by f'(x) or df/dx.
The derivative Formula is given as:
f1 (x)=lim△x→0 f(x+△x) − f(x)△x.
Take the derivative: F'(x) = [tex]\frac{d}{dx} (5x^6+4x^3)^5[/tex]
Substitute the inner function by (5x⁶+4x³)
Apply the chain rule: [tex]\frac{d}{dx} (g)^4*\frac{d}{dx} (5x^6+4x^3)^4[/tex]
Calculate the derivative: [tex]4g^3*\frac{d}{dx} (5x^6+4x^3)^4[/tex]
Substitute back: [tex]4(5x^6+4x^3)^3*\frac{d}{dx} (5x^6+4x^3)[/tex]
Result after applying the chain rule: F'(x) = [tex]4(5x^6+4x^3)^3*\frac{d}{dx} (5x^6+4x^3)[/tex]
Calculate the derivative of the sum or difference:
F'(x) =[tex]4(5x^6+4x^3)^3*(\frac{d}{dx} (5x^6))+\frac{d}{dx} (4x^3))[/tex]
Take out the coefficients F'(x) = [tex]4(5x^6+4x^3)^3*(5*\frac{d}{dx} (x^6)+4\frac{d}{dx}(x^3))[/tex]
Apply the power rule: F'(x) = 4(5x⁶+4x³)³*(5*6x³+4*3x²)
Multiply the monomials: F'(x) = 4(5x⁶+4x³)³*(30x³+12x²)
Rewrite the expression: F'(x) = 4(30x³+12x²)*(5x⁶+4x³)³
So, the answer is F'(x) =4(30x³+12x²)*(5x⁶+4x³)³
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Give me 2 rational exponent world problem that contains sustainability
1. A city wants to reduce its carbon footprint by switching to renewable energy sources. The city's current energy consumption is measured in gigawatt hours (GWh) and they want to reduce it by 20% in the next 5 years. The city's current energy consumption is 2,000 GWh per year. What is the target energy consumption in GWh per year that the city should aim for to achieve their goal?
2. A company wants to reduce its water consumption by 50% in the next 10 years. The company currently consumes 500,000 gallons of water per day. How many gallons of water per day should the company aim to consume in 10 years to achieve their goal?
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a. Identify each sequence as arithmetic, geometric, or neither.
b. If it is arithmetic or geometric, describe the sequence generator
n t(n)
0 16
1 8
2 4
3 2
4 1
5 1/2
6 1/4
Answer:
a) The sequence is geometric,b) [tex]t(n) = 2^{4-n}[/tex]----------------------------------------
Given sequence from zeros to 6th terms:
16, 8, 4, 2, 1, 1/2, 1/4It is a GP with the common ratio of 1/2 as each term is half the previous one.
Use the nth term equation, considering the first term is t(1) = 8, and common ratio r = 1/2:
[tex]t(n) = t(1)*r^{n-1}[/tex][tex]t(n) = 8*(1/2)^{n-1}=8*2^{1-n}=2^3*2^{1-n}=2^{4-n}[/tex]Answer:
a) Geometric sequence
[tex]\textsf{b)} \quad t(n)=8 \left(\dfrac{1}{2}\right)^{n-1}[/tex]
Step-by-step explanation:
An Arithmetic Sequence has a constant difference between each consecutive term.
A Geometric Sequence has a constant ratio (multiplier) between each consecutive term.
Part (a)From inspection of the given table, t(n) halves each time n increases by 1.
Therefore, the sequence is geometric with a common ratio of 1/2.
Part (b)[tex]\boxed{\begin{minipage}{5.5 cm}\underline{Geometric sequence}\\\\$a_n=ar^{n-1}$\\\\where:\\\phantom{ww}$\bullet$ $a$ is the first term. \\\phantom{ww}$\bullet$ $r$ is the common ratio.\\\phantom{ww}$\bullet$ $a_n$ is the $n$th term.\\\phantom{ww}$\bullet$ $n$ is the position of the term.\\\end{minipage}}[/tex]
Given:
a = 8r = 1/2aₙ = t(n)Substitute the initial value (when n = 1) and the common ratio into the formula to create an equation for the nth term:
[tex]\implies t(n)=8 \left(\dfrac{1}{2}\right)^{n-1}[/tex]
Find a set of four integers such that their order and the order of their absolute valúes are the same
The set of 4 integers are is given by the equation A = { 1 , 2 , 3 , 4 }
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the set of 4 integers be represented as set A
Now , the equation will be
Let the first number be 1
The absolute value of 1 is | 1 | = 1
Let the second number be 2
The absolute value of 2 is | 2 | = 2
Let the third number be 3
The absolute value of 3 is | 3 | = 3
Let the fourth number be 4
The absolute value of 4 is | 4 | = 4
And , | 1 | < | 2 | < | 3 | < | 4 |
Hence , the set of integers are { 1 , 2 , 3 , 4 }
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Please help!!! please! which letter represent the opposite of 1 1/3 on the number line below
Answer:
K
Step-by-step explanation:
K represents negative 1 ⅓.
to find the opposite of a number you must look to see if its negative. if its negative then its opposite would be a positive. If its a positive then its opposite would be a negative. Opposites are always the number in opposite signs like 7 and -7.
I found K to be 1⅓ because there are 2 spaces in between numbers so it would be ¹ ⅓ ⅔ 1. so I went to the number 1 and went one space back/where K because I know it would be 1 ⅓
info about question in picture
The coordinates of the linear equation for (m, s) are; (0, 4), (2, 3), (-2, 5), (8, 0)
This is a one to one mapping and example of a function
How to solve linear equation problems?We are given the equation as;
2m + 4s = 16
Thus;
When m = 0, we have;
2(0) + 4s = 16
4s = 16
divide both sides by 4 to get;
s = 4
When s = 3;
2m + 4(3) = 16
2m + 12 = 16
2m = 16 - 12
Divide both sides by 2 to get;
m = 4/2
m = 2
When m = -2
we have;
2(-2) + 4s = 16
-4 + 4s = 16
4s = 20
divide both sides by 4 to get;
s = 5
When s = 0, we have;
2m + 4(0) = 16
2m + 0 = 16
2m = 16
Divide both sides by 2 to get;
m = 16/2
m = 8
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What is the graph of the solution to the following compound inequality?
7x+3 ≤ 52 and 3-x<9
O A.
O B.
О с.
O D.
-10-9-8-7 -6 -5 4 -3 -2 -1 0 1 2 3 4
5 6 7 8 9 10
-10-9-8-7 -6 -5 4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
-10-9-8-7 -6 -5 4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
B
-10-9-8-7 -6 -5 4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
Here, on solving the provide question to us, we got to know that - equation 210 feet represents = 825/4
What is equation?Since equations are essentially questions, efforts to systematically find answers to those questions have been the driving force behind the development of mathematics. From straightforward algebraic equations that just require addition or multiplication to differential equations, exponential equations that use exponential expressions, and integral equations, there are many different types of equations that range in complexity.
Here,
15 feet represents = 1/8 of an inch
1 feet represents = 1/8 X 15
The growth of mathematics has been fueled by efforts to methodically find answers to equations, which are basically questions. There are many distinct forms of equations that range in complexity, from simple algebraic equations that just need addition or multiplication to differential equations, exponential equations that employ exponential expressions, and integral equations 210 feet represents = 1/8 X 15 X 210 = 825/4
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Write an exponential
function y = ab∧x
whose
graph passes through the
points
(2, –50), (4, –1250)
The exponential function will be y= -2(3)^x.
What are exponential functions?
An exponential function is a Mathematical function in the form f (x) = a^x, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0. The most commonly used exponential function base is the transcendental number e, which is approximately equal to 2.71828.
Now,
Given points for exponential function are (2, –50), (4, –1250).
and exponential function is y=ab^x
To find a and b put points in the function
-50=ab^2 -->1
-1250=ab^4 --->2
From equation 1
a=-50/b^2
Put value of a into 2
-1250=-50/b^2*b^4
b^2=25
b=5
For b=5, a=-50/5^2=-2
Hence, a=-2
Therefore,
The exponential function will be y= -2*5^x.
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ella has 0.5 lb of sugar how much water should she add to make the following concentrations? tell ella how much syrup she will have in each case. 75% syrup ella should add _ lb water and she will have to add _lb syrup
Answer: The answer provided is based on the following calculation:
To make a 75% syrup, Ella should add enough water to the sugar to create a solution that is 25% sugar and 75% water.
To calculate how much water to add, you can use the formula: (desired % of sugar) / (100 - desired % of sugar) * (amount of sugar).
In this case, it would be: (0.75) / (100 - 0.75) * (0.5 lb) = 0.67 lb of water.
To calculate the total amount of syrup, you add the amount of sugar and the amount of water: 0.5 lb + 0.67 lb = 1.17 lb.
So Ella should add 0.67 lb of water to make a 75% syrup and will have a total of 1.17 lb syrup.
Step-by-step explanation:
Answer:
for the 75% syrup: 0.167lbs
For the 1.5% syrup: 32.83 lbs