Which choice is a term in this expression? -3x − 7(x + 4)

Answers

Answer 1

Answer:

Mate im sorry for replying here but i need points to ask a question.


Related Questions

Match the expressions to their solutions or equivalents. (-3/8) + (-1/8)

Answers

Answer:

-1/2

Step-by-step explanation:

-3/8+-1/8=-4/8 which is equal to -1/2

Answer:

1/4

Step-by-step explanation:

(3/8)+(-1/8)

= (3/8) - (1/8)

= 2/8

= 1/4

If DAB = 80°, then DAC =

Answers

Answer:

80

Step-by-step explanation:

DAB =DAC...........

The answer is 40
DAB = 1/2(DAC)

solve asap please!!!

Answers

ANSWER: 39.7%

Explanation:
1. Determine your chain's density first.
Mass / volume equals density.

volume equals water displaced ml = 20 ml
- 15 ml = 5 ml where volume = Volume of Final Level of Water - Initial Level of Water
Mass = 66.7 g

Density is equal to 66.7g/5 ml, or 13.34 g/ml.


2. Next, calculate the chain's density as the weighted average of its component densities.

Divided by the mass of the chain, the formula is: mass of gold, density of gold, mass of other metals, density of other metals.

If x is the weight of gold, then 66.7 - x is the weight of the other metals:

19.3 - 2 + 9.7 . (66.7
66.7
= 13.34
19.32 + 635.66 - 9.72
= 889.778
9.62
254.118
2 = 26.47
Then, there are 26.47 grams of gold in 66.7
grams of chain, which yields a percentage of:
(26.47 / 66.7) × 100 = 39.7%

The margin of sampling error is obtained by multiplying the standard error with the _______.

Answers

The margin of sampling error is obtained by multiplying the standard error with the critical value.

What is the margin of sampling error?

The margin of sampling error is a statistic that tells a researcher by how many percentage points the result gotten from the sample value would differ from that of the population. This value is obtained by multiplying the standard error with the critical value.

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Lisa has $7.80 to spend on some tomatoes and a loaf of bread. Tomatoes cost $1.20 per pound, and a loaf of bread costs $1.80.The inequality 1.20x + 1.80 ≤ 7.80 models this situation, where x is the number of pounds of tomatoes.Solve the inequality. How many pounds of tomatoes can Lisa buy

Answers

Answer:

At maximum, she can buy 5 tomatoes.

Step-by-step explanation:

If you solve the inequality, as so:

1.2x+1.8 <=7.8

1.2x <= 6

x <= 5

Graph line y=-1/4x+3

Answers

Answer:

connect the points (0, 3) and (4, 2)

An Annuity Immediate Has 32 Initial Quarterly Payments Of 20 Followed By A Perpetuity Of Quarterly Payments Of 25 Starting In The 9th Year. Find The Present Value At A Nominal Rate Of 16%

Answers

The present value of the nominal rate of the annuity will be $535.

How to calculate the annuity?

Annuity amount = 20

Number of annuities = 32

APR = 16%

PV of annuities = 357

Number of years to perpetuity = 8

Quarterly perpetuity = 25

PV of perpetuity at 9th year = 625

PV of perpetuity today = 178

Total PV = 357 + 178 = 535

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11. What effect size do you use for parametric t-tests?
12. What effect size do you use for non-parametric t-tests?
13. What effect size would you use for chi-square tests?

Answers

The effective sizes for parametric tests, non parametric tests and chi square tests are as detailed below.

How to interpret the size of statistics test?

11) Parametric t-tests are statistical tests that assume the data approximately follows a normal distribution. Now, when trying to check for parametric t-tests, the effective size we use is Cohen's d which is an appropriate effect size for the comparison between two means.

12) Nonparametric t-tests are those statistical tests that don’t assume anything about the distribution followed by the data, and hence are also known as distribution free tests.

In non - parametric t - tests, we calculate effect size by using the formula;

r = z/√N

where;

r is effect size

z is z value

N is Observation number.

13) In the chi-square test, the effect size index (w) is calculated by dividing the chi-square value by the number of scores and taking the square root.

The effective size is considered small if w = 0.10, Considered medium if w = 0.30, and large if w = 0.50.

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equivalent expressions to 7^3*7^x

Answers

7^3 x 7^x
=7^(3+x)

This is one of the rule in indices.

find the outer perimeter of this figure

Answers

Answer:

41.12 ft

Step-by-step explanation:

10 + 6 = 16

2 x pi x r = 25.12

16 + 25.12 = 41.12

Answer:

Step-by-step explanation:

find the outer perimeter of this figure

we find the perimeter of the semicircle

The perimeter of circle formula = 2πr units

r = diameter : 2 = 8 : 2 = 4

2π4 =

8π=

8 × 3.14 = 25.12 ft

find figure perimeter

25.12 + 6 + 10 =

41.12 ft

The sides of a rectangle are enlarged by a scale factor of 2. Write
down the scale factor that the area is enlarged by.

Answers

Answer:

4

Step-by-step explanation:

both sides are multiplied by 2 which means its the original area*2*2 which means it's the original area*4

A file that is 273 megabytes is being downloaded. If the download is 18.9 complete, how many megabytes have been downloaded? Round your answer to the nearest tenth.

Answers

Answer:

51.6 megabytes

Step-by-step explanation:

It is asking you what 18.9 percent of 273 is. To find this you multiply 18.9 x 273 and then divide it by 100 which equals 51.597.

You then round it to the nearest tenths which gives you 51.6

2x+9=1x-5 what is x?

Answers

Answer:

2x+9=1x-5

2x-1x=-5-9

x=-14

2x+9=1x-5
2x-1x=-9-5
x=-14

For csc 330:
a) state value of the ratio exactly
b) find one equivalent expression
c) draw a diagram to illustarte.

Answers

The value of the ratio based on the angle illustrated is 1:12.

How to illustrate the information?

From the information given, it should be noted that the angle in a circle is 360°. Therefore, the value of theta will be:

= 360° - 330°

= 30°

The equivalent expression based on the angle will be:

= 30/360

= 1/12

= 1:12

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Which ordered pair is a solution to the inequality 3x-4y<12 ?

Answers

The ordered pair (2,-1) is a solution the inequality.

Given the inequality is 3x-4y<12.

An inequality is a statement that compares two quantities and claims that one is greater or less than the other (the equation may also be included). These inequalities are linear if the variables are only linear.

By substituting each of the given option in the given inequality we will check which ordered pair satisfy the inequality.

1. (4,0)

Here x=4 and y=0

Substitute this in the inequality 3x-4y<12, we get

3(4)-4(0)<12

12<12

This is not true

2. (0,-3)

Here x=3 and y=-3

Substitute this in the inequality 3x-4y<12, we get

3(0)-4(-3)<12

12<12

This is not true.

3. (2,-1)

Here x=2 and y=-1

Substitute this in the inequality 3x-4y<12, we get

3(2)-4(-1)<12

6+4<12

10<12

This is true.

4. (4,-3)

Here x=4 and y=-3

Substitute this in the inequality 3x-4y<12, we get

3(4)-4(-3)<12

12+12<12

24<12

This is not true.

Hence, the ordered pair that satisfy the given inequality 3x-4y<12 is (2,-1).

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The sun
of three numbers is 24. If two numbers are 16 and 22, what is the third?

Answers

Answer:

The Third would be 72

Step-by-step explanation:

The sum of the two is 16+22=38. the third one is 72-38=34

Two cars start at the same time, but travel in opposite directions. One car's average speed is 80 miles per hour (mph). At the end of 2 hours, the two cars are 220 miles apart. Find the average speed in mph of the other car.

Answers

The speed of an object is the relationship between the distance covered by the object and the time taken. Thus, the average speed of the other car is 30 mph.

The speed of an object is the relationship between the distance covered by the object and the time taken. The expression for speed is given as;

speed = [tex]\frac{distance covered}{time taken}[/tex]

⇒ distance = speed x time taken

In the given question, the distance of the first car after 2 hours can be determined as:

distance = 80 mph x 2 h

              = 160 miles

The distance covered by the first car after 2 hours is 160 miles.

Thus, since the total distance between the two cars after 2 hours is 220 miles, then;

distance covered by the second car = 220 miles - 160 miles

                                                          = 60 miles

The distance covered by the second car is 60 miles.

So that the average speed of the other car is;

speed = [tex]\frac{60}{2}[/tex]

           = 30 mph

The average speed is 30 miles per hour (mph).

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which of the following is an exponential function y=x^1/2 y=2x^3 y=3^x

Answers

Answer:

  (c)  y = 3^x

Step-by-step explanation:

A function is described as exponential if the independent variable is found in the exponent.

Choices

  y = x^(1/2) . . . a square root function, not exponential

  y = 2x^3 . . . . a cubic (polynomial) function, not exponential

  y = 3^x . . . . . an exponential function

Question
The epicenter of an earthquake is the point on Earth's surface directly above the earthquake's origin. A seismograph can be used to determine the distance to the epicenter of an earthquake. Seismographs are needed in three different places to locate an earthquake's epicenter. Find the location of the earthquake's epicenter if it is 2 miles away from A(−2,5), 4 miles away from B(2,3), and 7 miles away from C(−2,−4).

Answers

Answer:

The epicenter is ( - 2, 3)

Step-by-step explanation:

Let the epicenter be E(x, y).

Use the distance formula for each given distance:

AE² = (x + 2)² + (y - 5)² = 2²BE² = (x - 2)² + (y - 3)² = 4²CE² = (x + 2)² + (y + 4)² = 7²

Use the first and third equations, considering both have same term for x, and solve for y:

(y - 5)² - 4 = (y + 4)² - 49y² - 10y + 25 - 4 = y² + 8y + 16 - 4918y = 54y = 3

Substitute y into one of equations and solve for x:

(x + 2)² + (3 - 5)² = 4(x + 2)² + 4 = 4(x + 2)² = 0x + 2 = 0x = - 2

The epicenter is E( - 2, 3)

Answer:

(-2, 3)

Step-by-step explanation:

Given:

A = (-2, 5)  →  2 miles awayB = (2, 3)  →  4 miles awayC = (-2, -4)  →  7 miles away

Model each given point as the center of a circle and the distance the epicenter is away from the point as the circle's radius.

The epicenter's location will be the point of intersection of the three circles.

Equation of a circle

[tex](x-a)^2+(y-b)^2=r^2[/tex]

where (a, b) is the center and r is the radius

Circle A

center = (-2, 5)radius = 2 miles

[tex]\implies (x+2)^2+(y-5)^2=4[/tex]

[tex]\implies x^2+4x+4+y^2-10y+25=4[/tex]

[tex]\implies x^2+4x+y^2-10y+25=0[/tex]

Circle B

center = (2, 3)radius = 4 miles

[tex]\implies (x-2)^2+(y-3)^2=16[/tex]

[tex]\implies x^2-4x+4+y^2-6y+9=16[/tex]

[tex]\implies x^2-4x+y^2-6y-3=0[/tex]

Circle C

center = (-2, -4)radius = 7 miles

[tex]\implies (x+2)^2+(y+4)^2=49[/tex]

[tex]\implies x^2+4x+4+y^2+8y+16=49[/tex]

[tex]\implies x^2+4x+y^2+8y-29=0[/tex]

To find the point of intersection of the three circles, solve simultaneously.

Substitute equation B into equation A to eliminate x² and y²:

[tex]\implies x^2-4x+y^2-6y-3=x^2+4x+y^2-10y+25[/tex]

[tex]\implies -4x-6y-3=4x-10y+25[/tex]

Rearrange to isolate y:

[tex]\implies -6y-3=8x-10y+25[/tex]

[tex]\implies 4y-3=8x+25[/tex]

[tex]\implies 4y=8x+28[/tex]

[tex]\implies y=2x+7[/tex]

Substitute the expression for y into equation C and simplify:

[tex]\implies x^2+4x+(2x+7)^2+8(2x+7)-29=0[/tex]

[tex]\implies x^2+4x+4x^2+28x+49+16x+56-29=0[/tex]

[tex]\implies 5x^2+48x+76=0[/tex]

Substitute the expression for y into equation B and simplify:

[tex]\implies x^2-4x+(2x+7)^2-6(2x+7)-3=0[/tex]

[tex]\implies x^2-4x+4x^2+28x+49-12x-42-3=0[/tex]

[tex]\implies 5x^2+12x+4=0[/tex]

Equate the equations to eliminate 5x² and solve for x:

[tex]\implies 5x^2+48x+76=5x^2+12x+4[/tex]

[tex]\implies 48x+76=12x+4[/tex]

[tex]\implies 36x+76=4[/tex]

[tex]\implies 36x=-72[/tex]

[tex]\implies x=-2[/tex]

Substitute the found value of x into the found expression for y:

[tex]\implies y=2(-2)+7[/tex]

[tex]\implies y=-4+7[/tex]

[tex]\implies y=3[/tex]

Therefore, the point of intersection of the three circles if (-2, 3) and hence the location of the earthquake's epicenter is (-2, 3).

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Solve.
Three times the sum of some number plus 3 is equal to 7 times the number minus 23.

Answers

The unknown number of the given expression is 8

Linear equations

Let the unknown number be x such that three times the sum of some number plus 3 is equal to 7 times the number minus 23 is expressed as;

3(x + 3) = 7x - 23

Expand

3x + 9= 7x - 23

Collect the like terms

3x-7x = -23 - 9

-4x = -32

x = 8

Hence the unknown number of the given expression is 8

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how can I solve for x? Answers ASAP

Answers

Using the inscribed angle theorem, the value of x is: 9.

What is the Inscribed Angle Theorem?

Note that an intercepted arc is regarded as part of the circumference of a circle, which is between a chord and a tangent. Thus, based on the inscribed angle theorem, the inscribed angle measure = 1/2(the intercepted arc measure).

So, we would have:

m∠DEF = 1/2(arc DE)

m∠DEF = 4x + 19

arc DE = 360 - (28x - 2) = 360 - 28x + 2

arc DE = 362 - 28x

Plug in the values

4x + 19 = 1/2(362 - 28x)

Solve for x

2(4x + 19) = 362 - 28x

8x + 38 = 362 - 28x

8x + 28x = 362 - 38

36x = 324

x = 324/36

x = 9

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Consider the following graph

a) What is the equation of the axis?
b) What is the period?
c) What is the amplitude?
d) Is this a sine graph or a cosine graph? Explain

Answers

a) The equation of axis is the middle y-coordinate, which is y = -1.5.

b) The period is the amount of time it takes for the graph to repeat, which is 6.

c) The amplitude is the vertical distance from an extreme point to the midpoint, which is 3.

d) This is a cosine graph since when x=0, y is not equal to 0.

Tina puts the letters of the word RADAR on pieces of paper and puts the pieces in a bag. She
draws two letters without looking. The first piece of paper is not replaced before the second
piece is drawn. What is the probability that Tina draws an R twice?

Answers

Answer:

1/10

Step-by-step explanation:

the probability of drawing r the first time is 2/5, if tina had gotten the r the first time, the probability of drawing r on the second time is 1/4, so the probability tina draws an r twice is 2/5 * 1/4, or 2/20, or 1/10

Which of the relations given by the following sets of ordered pairs is a function?
O {(2,-8), (1, — 4), (0, 0), (1, 4), (2, 8)}
O {(3, -3), (3, -1), (3, 1), (3, 3), (3,5)}
O {(1, 2), (2, 3), (3, 4), (5, 6), (2, 1)}
O {(-2,5), (7,5), (-4, 0), (3, 0), (1, -6)}

Answers

Answer:

Option (4)

Step-by-step explanation:

Each value of x maps onto only one value of y, so it is a function.

Kylie has a modern quarter with a mass of 5.623 g and an older silver quarter with a mass of 6.24 g What is the combined mass of the quarters?

Answers

Answer:

11.863 g

Step-by-step explanation:

5.623 g + 6.24 g = 11.863 g

Sheffield corporation shipped $20400 of merchandise on a consignment to Gooch company. Sheffield paid frieght cost of $2000. Gooch company paid $480 for local advertising wich is reimbursed from Sheffield . By year end 62% of the merchandise had been sold for $21500.Gooch notified Sheffield , retained a 10% commission , and remitted the cash due Sheffield . Prepare sheffield journal entry when the cash is received

Answers

The appropriate  journal entry when the cash is received is: Debit Cash $18,870, Debit Advertising expense $480, Debit Commission expense $2,150, Credit Revenue from consignment sales $21,500.

Journal entry

Sheffield corporation entries

Debit Cash $18,870

[$21500-($480+ ($21500×10%))]

Debit Advertising expense $480

Debit Commission expense $2,150

(21,500×10%)

Credit Revenue from consignment sales $21,500

Debit Cost of goods sold $13,888

[($20400+$2000)×62%]

Credit Inventory on consignment $13,888

Therefore  journal entry when the cash is received is: Debit Cash $18,870, Debit Advertising expense $480, Debit Commission expense $2,150, Credit Revenue from consignment sales $21,500.

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Which of the following rational functions is graphed below?

Answers

Answer:

A

Step-by-step explanation:

If you were to substitute 2 or -3 into equation A, the denominator would be zero and you would have to divide by zero. Thus there are asymptotes for this function at -3 and 2, matching the graph

a. If you wanted to draw a circle around this triangle that passed through points A, B, and C as shown by circle P, what steps would you take to do that? b. What steps would you take to draw a circle within the triangle such that each side of the triangle became a tangent line to the circle as shown by circle R? c. If a line drawn from point B to point P measures 2 inches, what is the diameter, circumference, and area of circle P in terms of I? d. Describe how you would find the area of the region bounded by segment BC and arc BDC in terms of a if the arc measure of arc BDC is 60°

Answers

The circumference and area of the circle is 12. 57 inches and 12. 57 inches square respectively.

Steps involved in inscribing a triangle

The steps involved in inscribing a triangle;

Construct two chords on the circle.Then , draw a perpendicular bisector to the chords with the compass which must meet at the center of the circle. Make a line from the center to one of the farthest points of  the chords.Draw two lines to form a 30 degree with the radius on the opposite side.Stretch out these two lines to make two chords on the circle. The two chords should make  angle of 60 degrees to each other.Then connect the other extreme of the two chords this makes an equilateral triangle.

If the line drawn from point B to point P measures 2 inches, then the diameter is

=  2 × 2

= 4 inches.

The formula for calculating the circumference of a circle is given as;

Circumference = 2 π r

Radius = diameter/ 2

Radius = 4/2 = 2 Inches

Substitute the values

Circumference = 2 × 3. 142 × 2

Circumference = 12. 57 inches

Area = π r²

Area = 3. 142 × 2²

Area = 3. 142 × 4

Area = 12. 57 square inches

Thus, the circumference and area of the circle is 12. 57 inches and 12. 57 inches square respectively.

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WILL GIVE BRAINLIEST

given: RTSU is a rectangle with vertices R (0,0), S (0, a), T(a,a) and U, (a,0) where a ≠ 0
Prove: RTSU is a square
look at image

Answers

The missing parts of the proof are: A. distance formula; definition of congruence; if two consecutive sides of a rectangle are congruent, then it is a square.

What is a Square?

A square is a special type of rectangle whose consecutive sides are congruent. All four sides of a square are congruent.

In the proof given, the distance formula [tex]\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}[/tex] was used to find ST = a units in step 2.

By the definition of congruence, RS = ST in step 4.

Finally, RSTU is stated to be a square because if two consecutive sides of a rectangle are congruent, then it is a square.

The option that completes the proof in the right order is: A. distance formula; definition of congruence; if two consecutive sides of a rectangle are congruent, then it is a square.

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Answer:

distance formula; definition of congruence; if two consecutive sides of a rectangle are congruent, then it’s a square

Step-by-step explanation:

so its c for me

To find the quotient of two fractions, you first need to rewrite the division problem as an equivalent multiplication problem. Find this quotient using multiplication.

Answers

2/3 ÷ 6/5 = 2/3 × 5/6 = 10/18 = 5/9
Answer : 5/9
Hope it helps !

The divisor of the expression 2/3 ÷ 6/5 is 9.

We have,

Expression:

2/3 ÷ 6/5

The concept used.

a/b ÷ c/d = ad / bc

Now,

2/3 ÷ 6/5

This can be written as,

= 2/3 x 5/6

= (2 x 5) / (3 x 6)

= 10 / 18

= 2 x 5 / 2 x 9

Cancel the common factor.

= 5 / 9

This can be read as,

Dividend = 5

Divisor = 9

Thus,

The divisor of the expression is 9.

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find a gnf grammar equivalent to the following (cnf) cfg: s-> aa | 0 a -> ss | 1 find the dimensions of the box with volume 8000 cm3 that has minimal surface area. (let x, y, and z be the dimensions of the box.) (x, y, z) = Typical media portrayal of gender roles include all of the following except...a. strong, intelligent working class womenb. adult working womenc. a focus on celebrities, fashion, and attracting men in magazines for young womend. a focus on sex and sports in magazines aimed at men a person is involved in the process whether he is speaking or listening, or even sitting quietly behind a desk when another person enters the room. Click on the part of the curve where ammonia and the ammonium ions are acting as a buffer solution Hint: A buffer solution can resist a large change in pH when a small amount of strong acid or a strong base is added 2 25 10 15 20 Volume of HCI (cm) contextual interference is interference introduced into the practice session through the use of a massed practice schedule.truefalse FILL IN THE BLANK ___________ is appropriate if the mother's pushing during the second stage of labor does not move the baby through the birth canal in a reasonable period of time. random rand = new random(); int i, x; for(i = 0; i < 2; i ) { x = rand.nextint(2); }What range of values can variable n have? a. Between 4 and 10 inclusive b. Between 0 and 6 inclusive C. Between 4 and 10 not inclusive d. Between 0 and 6 not inclusive al question product differentiation complicates the study of oligopolies because such markets may not Complete the word in the box and finish Marcos letter. The point P(3, 0.666666666666667) lies on the curve y = 2/x. If Q is the point (x, 2/x), find the slope of the secant line PQ for the following values of x. If x = 3.1, the slope of PQ is: and if x = 3.01, the slope of PQ is: and if x = 2.9, the slope of PQ is: and if x = 2.99, the slope of PQ is: Based on the above results, guess the slope of the tangent line to the curve at P(3, 0.666666666666667). Mark, Jessica, and Nate each downloaded music from the same website. Mark downloaded 10 songs in total consisting of pop, rock, and hip hop. Jessica downloaded five times as many pop songs, twice as many rock songs, and three times as many hip hop songs as Mark. She downloaded 28 songs total. Nate downloaded 20 songs total with three times as many pop songs, three times as many rock songs, and the same number of hip hop songs as Mark. Which system of equations represents their music choices? x y z = 10 5x 2y 3z = 28 3x 3y z = 20 x y z = 10 2x 5y 3z = 28 3x 3y z = 20 x y z = 10 5x 2y 3z = 28 3x 3y 3z = 20 x y z = 10 2x 3y 5z = 28 x 3y 3z = 20. calculate the range of wavelengths (in m) for x-rays given their frequency range is 30,000 to 3.0 107 thz. Smaller Value ___________ mLarger Value ____________ m In the United States, multiple family structures were made. Nuclear families, being the common structure, and extended families, being the least common. Reasoning for extended families are less popular is because of economice purposes. Families who house grandparents, aunts, and uncles could mean a significant amount of money that will need to be spent on utilities, food, and water. Grace Jones was just hired as an accounting intern at your company. Can you assist Grace and identify which of the following statements about operating leverage is not correct? Multiple Choice The measure of operating leverage can affect a company's profit projections. O Measuring the degree of operating leverage is a form of measuring risk Decisions about whether to use fixed or variable costs affect a comparty's operating leverage. O The degree of operating leverage measures how much profit is eamed in operating the business. the nearest star to the earth (proxima centauri) is located 4.246 light years away. a. (3 pts) how fast would a spaceship need to travel for only 6 months to elapse for the crew? (b) How long does the trip take according to Earth observers? suppose that f (n) = f (n3) 1 when n is a positive integer divisible by 3, and f (1) = 1. Find a) f(3) b) f(27)c) (729) Tom needs $80 to buy his dad a birthday gift. He has saved 75% of that amount so far. How much has he saved so far? A single-input, single-output system is described by x (t) = [0 1 - 1 - p] x (t) + [k 0] u (t) y (t) = [0 1] x (t) (a) Determine p and K such that the unit step response exhibits a zero steady-state error and the percent overshoot meets the requirement P.O. lessthanorequalto 5%. (b) For the values of p and K determined in part (a), determine the system damping ratio and the natural frequency. (c) For the values of p and K determined in part (a), obtain the Bode plot of the system and determine the bandwidth. a test tube with a diameter of 3cm,how many turns would a piece of thread of length 90.42cm make round the test tube?(Take = 22/7) please!!!