Can someone help me with these problems please having trouble and show work!
Answer:
solution will be1. 4x²-6x-4
2. 8x³+4x²-8x-4
3. x⁵-x⁴+3x³+x²+12
Step-by-step explanation:
1. (4x+2)(x-2)
apply foil method (a+b)(c+d)=ac+ad+bc+bd
(4x+2)(x-2)=4x.x + 4x(-2) + 2x + 2(-2)
4x²-8x+2x-44x²-6x-42. (4x²-4) (2x+1)
apply the same method as question no.1
(4x²-4) (2x+1)=4x².2x + 4x².1 + -4.2x-4.1
8x³+4x²-8x-43. (x²+3) (x³-x²+4)
Distributive parentheses
(x²+3) (x³-x²+4)= x².x³ + x²(-x²) + x².4+ 3x³+3(-x²) +3.4
x⁵-x⁴+3x³+x²+12Work out the area of the triangle.
?m2
The area of the triangle is 557. 7cm²
Area of a triangle
In order to determine the area of a triangle, we have to know the size of the base and the size of the height
The formula for finding the area of a triangle is given as = half the base multiplied by the height
In mathematical form, it is written as;
Area = 1/ 2 × base × height
From the figure given, we have their lengths to be'
base = 57. 2 m
height = 19. 5 m
Let's substitute the values
Area = 1/ 2 × 57. 2 × 19. 5
Area = 1/ 2 × 1115. 4
Find the ratio
Area = 557. 7 m²
The area of the triangle is 557. 7cm²
Hence, the area of the triangle is 557. 7cm²
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how do u solve this? what’s the answer?
The functions that have the properties are (d) I and II only
How to determine the functions?The function property is given as:
[tex]a(x) = a^{-1}(x)[/tex]
The above implies that the inverse function and the original function are equal.
From the list of options, we have:
(a) y = x
Make x the subject
x = y --- the same as the original function
(b) y = 1/x
Make x the subject
x = 1/y --- the same as the original function
Hence, the functions that have the properties are (d) I and II only
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Volume=
Help me please thanks so much
Answer:
30.7
Step-by-step explanation:
It's 30.7 because 707/23
Answer:
16261 u3
Step-by-step explanation:
V = (base area)(height)=(707)(23)= 16261 u3
Hope this helps
Please help!
Choose the notation that represents the shaded region.
A - B
B - A’
C - A’∪B
D - A’∩B
Answer:
D
Step-by-step explanation:
A' represents everything outside of the circle A
B represents the space within circle B
A' intersection B is everything not in A that is in B.
find the inverse of
f(x) = -6xˆ2 + 24x - 100
Answer:
See below
Step-by-step explanation:
y = -6x^2 + 24x-100
solve for 'x'
y + 100 = -6x^2 + 24x = -6(x^2-4x) complete the square for x
(y+100) /(-6 ) = (x-2)^2 -4 add 4 to both sides
(y+100)/(-6) +4 = (x-2)^2 sqrt both sides
sqrt [ ( y+100)/(-6) + 4 ] + 2 = x change x and y
y = ± sqrt [ (x+100)/(-6) + 4 ] + 2 simplify (if needed)
y = ± sqrt( -x/6 -12.666) + 2
Find the distance between the pair of points: (3,1) and (4,-5).
Answer:
9.2195445 (9.22 rounded)
Step-by-step explanation:
#1: Use the distance formula to determine the distance between the two points:
Distance = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]
#2: Substitute the actual values of the points into the distance formula:
[tex]\sqrt{((-4)-3)^{2}+(5-(-1))^{2}}[/tex]
#3: Simplify:
- Subtract 3 from -4: [tex]\sqrt{(-7)^{2}+(5-(-1))^{2}}[/tex]
- Raise -7 to the power of 2: [tex]\sqrt{49+(5-(-1))^{2}}[/tex]
- Multiply -1 by -1: [tex]\sqrt{49+(5+1)^{2}}[/tex]
- Add 5 and 1: [tex]\sqrt{49+6^{2}}[/tex]
- Raise 6 to the power of 2: [tex]\sqrt{49+36}[/tex]
- Add 49 and 36: [tex]\sqrt{85}[/tex] (Decimal form: 9.2195445 (9.22 rounded))
The distance between the two points (3,1) and (4,-5) is 9.22.
Expand.
Your answer should be a polynomial in standard form.
(p²+p-6) (p²-6)
a grandfather age is the same as his granddaughters age in months. Together they are 91. What is the age of the grandfather
The age of the grandfather in years according to the task content is; 84.
What is the age of the grandfather?It follows that the age of the grandfather and granddaughter are; x and y respectively.
Hence, the two equations which follow are;
x = 12y
x + y= 91
Hence, the age of the grandfather, x can be evaluated as follows;
x = 12(91-x)
13x = 1092
x = 1092/13
x = 84 years.
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Need help please someone answer quick
Answer:
2x/19
Quotient = division
Product = multiplication
Difference = subtraction
Sum = addition
Please help me
Given the quadratic function, describe in words the transformations and then
provide a sketch of the graph.
y = − 1/²(x+4)² - 7
Which statement below correctly depicts the expected value of a fair game?
E(X) = 0
E(X) = 1
E(X) > 0
E(X) >1
Answer:
e(x)=0 will be your answer
Step-by-step explanation:
First of all it is important to know about the fair game. A game is said to be fair if it has equal chances of winning for both the parties.
In Statistical terms, this can be said as expected value =0
If E(X) = 1 where X is from the player, then organizer of the game would have more chances of losing.
Similarly if E(X)>0where X is from the player, then organizer of the game would have more chances of losing.
Also if E(X)>1, where X is from the player, then organizer of the game would have more chances of losing.
Hence a fair game is one where
Answer: A. E(X) = 0
Step-by-step explanation:
Here's a Question for you! Solve for Reasoning
Step-by-step explanation:
3) Triangle QTR is similar to triangle STP (AA)
4) RT/PT = QR/PS (corresponding sides of similar triangles are proportional)
Brittany and four of her friends want to join a softball league. The league requires teams to have at least nine players, but teams cannot have more than eighteen players. In interval notation, how many more people can join Brittany's team?
The additional number of people is [4, 13]
How to determine the number of people?Brittany and four of her friends are five people.
So, we have:
n = 5
The conditions are given as
At least = 9At most = 18Let the additional number of people be x
So, we have the following inequalities
x + 5 ≥ 9 and x + 5 ≤ 18
Subtract 5 from both sides
x ≥ 4 and x ≤ 13
Express as interval notation
[4, 13]
Hence, the additional number of people is [4, 13]
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A group of people hoping to win tickets
to a concert includes 15 people over age 30,
14 people between 20 and 30 years old,
and 10 people under 20. If a 14-year-old
enters the pool of applicants, what will be the
probability of someone over age 30
winning the tickets?
Probability of someone over age 30 winning the tickets is; 38.46%
How to find the probability of winning?We are given;
Number of People over 30 years of age = 15
Number of people between 20 and 30 years old = 14
Number of People under 20 years old = 10
Total number of people in the group = 15 + 14 + 10 = 39
Thus;
Probability of someone over age 30 winning the tickets = 15/39 = 38.46%
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The binomial x + 11 is a factor of x^2 – 121. What is the other factor?
Answer:
x - 11
Step-by-step explanation:
Ruthie is trying to choose what reading material she wants to take on a vacation. She wants to read 1 fiction book, 1 nonfiction book, and 3 magazines. If Ruthie has 8 fiction books, 7 nonfiction books, and 3 magazines to choose from, how many possible combinations of books and magazines could she take with her.
E. 3 F.8 G.56 H.112
The number of possible combinations would be 56.
What is permutation?Permutation is the changing of the order in which things have been arranged or the arranging of things in a certain order.
Analysis:
Total number of fiction books available = 8
number of fiction books Ruthie wants = 1
Number of combination for Ruthie = 8C1 = 8 ways
Total number of non fiction books available = 7
number of non fiction books needed by Ruthie = 1
possible combination = 7C1 = 7 ways
Total number of magazines available = 3 ways.
Total possible combinations for all the Reading materials = 8 x 7 x 1 = 56 ways.
number of magazines Ruthie wants = 3C3 = 1 way
In conclusion, the number of possible combinations of The reading materials is 56.
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Find the perimeter of each of these rectangles
Answer:
a) 10√3 + 5√3 + 10√3 + 5√3 = 30√3 cm
b) (√10 + √2) + (√10 - √2) + (√10 + √2) + (√10 - √2)
= 4√10 cm
c) Simplifying √72: √36 x √2 = 6√2
Simplifying √18: √9 x √2 = 3√2
Finding the perimeter: 6√2 + 3√2 + 6√2 + 3√2 = 18√2 cm
In a zoo, the ratio of female to male tiger is 2:3.
There are 30 male tigers.
How many tigers are female?
A spiral tile has a width of 1/4 foot how many tiles will fit end to end on a 4 foot wall
16 tiles will fit end to end on a 4 foot wall.
In unitary method we will learn how to find the value of a unit from the value of a multiple and the value of a multiple from the value of a unit.
When we go to the market to buy any article, we ask the shopkeeper to tell the price of the article. This is called unit price. We calculate the price of number of articles, we want to buy, with the help of this unit price. Sometimes, we calculate unit price when the price of a multiple is given.
1 tile in 1/4 foot
So in 4 foot wall the number of tiles = 4/(1/4) = 16 tiles.
Thus 16 tiles will fit end to end on a 4 foot wall.
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HELP HELP HELP
HELP HELP HELP
HELP HELP HELP
Using proportions, the lengths of the unknown sides are given as follows:
2x = 10.x - 3 = 2.What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, the triangles are similar, hence the lengths of it's sides follow the proportion given next:
[tex]\frac{2x}{4} = \frac{5}{x - 3}[/tex]
Applying cross multiplication:
2x(x - 3) = 20
2x² - 6x - 20 = 0
x² - 3x - 10 = 0
(x - 5)(x + 2) = 0.
Then the positive solution is:
x - 5 = 0 -> x = 5.
And the lenghts are:
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Which statement is correct when a scatterplot is constructed?
The correct statement about when a scatterplot is constructed is the independent variable is the input variable and should be represented by the x-axis. Option A
Steps in constructing a scatterplotChoose independent and dependent variableDraw a known x-axis for the independent variableAdd y-axis for the dependent variableMake all the points in the scatterplotLabel graph and axesFrom the given steps, we can see that when a scatter plot is constructed, the independent variable is the input variable and should be represented by the x-axis.
Hence, the correct statement about when a scatterplot is constructed is the independent variable is the input variable and should be represented by the x-axis. Option A
The complete question is;
Which statement is correct when a scatterplot is constructed? The independent variable is the input variable and should be represented by the x-axis.
The independent variable is the input variable and should be represented by the y-axis.
The dependent variable is the input variable and should be represented by the x-axis.
The dependent variable is the input variable and should be represented by the y-axis.
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Answer: A; The independent variable is the input variable and should be represented by the x-axis.
Step-by-step explanation:
I just know
To which place would you estimate the given numbers so as to get answers quickly to the following sums?
(a) 3529 × 3689 (b) 33 × 99 (c) 777 × 523 (d) 495420 × 123512
For easy estimation, option A = nearest hundred,B = nearest ten, C = nearest hundred and D= nearest thousand.
Calculation of numbers using east estimations3529 and 3689
3529 to the nearest hundred = 3500 and,
3689 to the nearest hundred = 3700
∴ Required sum = (3500+3700) = 7200
33 and 99
33 to the nearest ten = 30 and,
99 to the nearest ten = 90
∴ Required sum = (30+90) = 120
120777 × 523
777 to the nearest hundred = 800 and,
523 to the nearest hundred = 500
∴ Required sum = (800+500) = 1300
1300495420 and 123512
495420 to the nearest thousand = 495000 and,
123512 to the nearest thousand = 124000
∴ Required sum = (495000 + 124000 ) = 619000
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Consider the sequence Three-fourths, four-fifths, StartFraction 5 Over 6 EndFraction, StartFraction 6 Over 7 EndFraction, ellipsis
Which statement describes the sequence? 3/4, 4/5, 5/6, 6/7,...
The sequence diverges.
The sequence converges to 1.
The sequence converges to ∞.
The sequence converges to –∞.
Using limits, it is found that the correct statement defining the sequence is:
The sequence converges to 1.
What is the rule that defines this sequence?The numerator starts at 3 and increases by 1, while the denominator starts at 4 and increases by 1, hence the rule is:
[tex]\sum_{n = 0}^{\infty} \frac{3 + n}{4 + n}[/tex]
To verify if it converges, we find the limit as n goes to infinity, hence:
[tex]\lim_{n \rightarrow \infty} \frac{3 + n}{4 + n} = \lim_{n \rightarrow \infty} \frac{n}{n} = \lim_{n \rightarrow \infty} 1 = 1[/tex]
Hence the sequence converges to 1.
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Answer:
B i took quiz
Step-by-step explanation:
Jace ordered a banner in the shape of a parallelogram from a print shop.
A parallelogram is shown. The length of the sides are 9 feet, and the length of the top and bottom sides are 12 feet. A diagonal is drawn from one point to the opposite side. The length of the diagonal is 19 feet.
Heron’s formula: Area = StartRoot s (s minus a) (s minus b) (s minus c) EndRoot
The print shop charges $1.10 per square foot for banners of any shape and size. What is the approximate cost of the banner before tax?
$41.95
$46.14
$83.90
$92.30
Answer: $92.30
Step-by-step explanation:
Finding the area of one of the triangles formed by the diagonal,[tex]s=\frac{9+12+19}{2}=20\\\\A=\sqrt{(20)(20-9)(20-12)(20-19)}=4\sqrt{110}[/tex]
Therefore, the area of the entire parallelogram is [tex]8\sqrt{110}[/tex].
Therefore, the cost is [tex](8\sqrt{110})(1.1) \approx 92.30[/tex]
Answer:
$92.30 i got it right.
Step-by-step explanation:
edg 2023 its right.
Identify the domain of the function shown in the graph
Using it's concept, the domain of the function shown in the graph is:
B. [tex]-6 \leq x \leq 6[/tex].
What is the domain of a function?The domain of a function is the set that contains all possible input values for the function. In a graph, the domain is the set that contains all values of x.
From this graph, the function is defined for values of x between -6 and 6, hence the domain is given by:
B. [tex]-6 \leq x \leq 6[/tex].
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im being timed so please be quick thank you !!
Answer:
#3
Step-by-step explanation:
The y-intercept (the point where the line intersects with the y-axis) is -2, and the slope is 2/3 (two units up every three units to the right).
Answer:
C.
Step-by-step explanation:
First, look for the graph that shows a line with a y-intercept of -2. There is only one graph that shows a line with a y-intercept of -2. The graph will be the third graph. Please see attachment for the equation in a graphing calculator.
Hope this helps!
Brad has $12 more than John. Together they have $84
Hello,
John : n
Brad : n + 12
n + n + 12 = 84
2n + 12 = 84
2n = 84 - 12
2n = 72
n = 72/2
n = 36
John $36 and Brad $36 + $12 = $48
Answer:
jhon =36 brad=48
Step-by-step explanation:
B=J+12
J+B=84
12+J+J=84
2J=72
J=36
B=J+12=36+12=48
Faith is tracking the number of burpees she does at a constant rate. Last
week, she completed 60 burpees in 5 minutes. This week, she completed
78 burpees in 6 minutes. How many burpees did Faith do per minute last
week and this week?
Please help me I will mark u the brainliest
Can someone help me with this having trouble !
Answer:
B. The coefficient of the second term is -5.
and
D. The coefficient of the fourth term is -10.
Step-by-step explanation:
The coefficient is the number being multiplied by a variable.
Hope this helps!
Answer:
Tick:
- the coefficient of the second term is -5
- the coefficient of the fourth term is -10
Explanation:
The coefficient of an expression is simply the number placed before and multiplying the variable (e.g. 10x ; the coefficient is 10, the variable is x)
Hope this makes sense. Feel free to inquire further if need be!
- profparis