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3 years ago

Find the area of the composite figure

Mathematics

2 answers:

omeli [17]3 years ago

8 0

Answer:

the whole thing is 174

Step-by-step explanation:

Sunny_sXe [5.5K]3 years ago

3 0

Well cutting off the small 4x2 you get 8 plus’s the 7x2 is 14 so just add those together you should get 22in ^2

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What is the solution to the system of equations below? 3x-2y=7 and -3x+5y=5

Zolol [24]

Step-by-step explanation:

So you add one over the other

3x-2y=7

-3x+5y=5

3y=12

Then you divide 3 from both sides

(3y)/3=12/3

y=4

Then you substitute the y=4 in to the equation of your choice

3x-2(4)=7

3x-8=7

+8 +8

3x=15

x=5

8 0

3 years ago

For each of the following questions, if there is more than one solution, enter all solutions as a comma-separated list (like "1,

PtichkaEL [24]

Answer:

Vertical intercept at y=43

Horizontal intercept at x= $-\frac{43}{6}$

Step-by-step explanation:

We are given that a function

$f(x)=6(x+8)-5$

We have to find the vertical intercept and horizontal intercept.

Vertical intercept : It is defined as the value of y for which x is equal to zero.

Horizontal intercept: It is defined as the value of x for which y is equal to zero.

Let y= $f(x)=6(x+8)-5$

Substitute x=0

$y=6(8)-5$

$y=43$

Therefore, vertical intercept at y=43

Substitute y=0

$0=6(x+8)-5$

$6x+48=5$

$6x=5-48=-43$

$x=\frac{-43}{6}$

Horizontal intercept at x= $-\frac{43}{6}$

3 0

3 years ago

Farrah's goal is to use 281 gallons of water or less per day at her business. Her water bill showed that 4,497 gallons were used

stiv31 [10]

Yes she meet ed her goal because if you do 4,497(total gallons)/281 (the gallons she wanted to use) you get 16.

5 0

3 years ago

3x - 6 = 18 <br>solve for x

mr Goodwill [35]

Answer:

x=8

Step-by-step explanation:

You move all terms that don't contain x to the right side and solve.

3x-6=18

3x=24

x=8

3 0

3 years ago

Read 2 more answers

A researcher surveyed 150 high school students and found that 68% played a musical insturment. What would be a reasonable range

maria [59]

Answer:

The reasonable range for the population mean is (61%, 75%).

Step-by-step explanation:

The interval estimate of a population parameter is an interval of values that consist of the values within which the true value of the parameter lies with a certain probability.

The mean of the sampling distribution of sample proportion is, $\hat p$ .

One of the best interval estimate of population proportion is the 95% confidence interval for proportion,

$CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

Given:

n = 150

$\hat p$ = 0.68

The critical value of <em>z</em> for 95% confidence level is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

Compute the 95% confidence interval for proportion as follows:

$CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

$=0.68\pm1.96\sqrt{\frac{0.68(1-0.68)}{150}}\\\\=0.68\pm 0.0747\\\\=(0.6053, 0.7547)\\\\\approx (0.61, 0.75)$

Thus, the reasonable range for the population mean is (61%, 75%).

5 0

4 years ago