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3 years ago

Please helpppppppppppp

Mathematics

1 answer:

Salsk061 [2.6K]3 years ago

6 0

Answer:

B. -9/11

Step-by-step explanation:

(f/g)(-4) = f(-4) / g(-4)

To find f(-4), we plug in -4 everywhere there is an x

f(-4) = 2(-4) - 1 = -8 - 1 = -9

Same idea for g(-4):

4(-4)^2 + 14(-4) + 3

4*16 - 56 + 3 = 11

So (f/g)(-4) = f(-4) / g(-4) =

-9/11

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What is 3-(1/3) to the fourth power?

Otrada [13]

Answer:

242/81 is the answer.

Step-by-step explanation:

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3 years ago

Solve the equation and enter the value of x below.<br> X+21= 62<br> X=_<br> Answer here

inna [77]

An equation is formed of two equal expressions. The solution of the equation is 41.

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The solution of the equation,

x + 21 = 62

x = 62 - 21

x = 41

Hence, the solution of the equation is 41.

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2 years ago

The function C(x) = 25.50x + 50 models the total cost for a cleaning company to clean a house, where x is the number of hours it

vodomira [7]

Answer:

<em>The average rate of change is $25.5 per hour, option B.</em>

Step-by-step explanation:

<u>Average Rate of Change </u>

When we are explicitly given some function C(x), we sometimes need to know the rate of change of C when x goes from $x=x_1$ to $x=x_2$ . It can be computed as the slope of a line .

$\displaystyle m=\frac{C(x_2)-C(x_1)}{x_2-x_1}$

The provided function is

$C(x)=25.50x + 50$

We are required to compute the average rate of change between the points

$x_1=3\ ,\ x_2=9$

Let's compute

$C(3)=25.50(3) + 50=126.5$

$C(9)=25.50(9) + 50=279.5$

$\displaystyle m=\frac{279.5-126.5}{9-3}$

$\displaystyle m=\frac{153}{6}=25.5$

The average rate of change is $25.5 per hour, option B.

7 0

4 years ago

James, Priya, and Siobhan work in a grocery store. James makes $9.00 per hour. Priya makes 20% more than James, and Siobhan make

s344n2d4d5 [400]

Answer:

Siobhan makes $9.18 per hour.

Step-by-step explanation:

9*20% is 1.8 so add that to 9 to get 10.80 then times 10.80 by 15% to get 1.62 so you subtract 1.62 from 10.80 to get $9.18

8 0

3 years ago

Read 2 more answers

A veterinarian estimated the weight of a puppy to be 7 kg. The actual weight of the puppy was 6.6 kg.

KIM [24]

9514 1404 393

Answer:

absolute error: 0.4 kg
relative error: 6.1%

Step-by-step explanation:

The absolute error is the difference between the estimate and the actual weight:

7.0 kg -6.6 kg = 0.4 kg . . . . absolute error

The relative error is the ratio of the absolute error to the actual weight:

(0.4 kg)/(6.6 kg) × 100% = 6.060606...% ≈ 6.1% . . . . relative error

6 0

3 years ago