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3 years ago

Identify the input and the output given the relation described:

Mathematics

1 answer:

bulgar [2K]3 years ago

4 0

The input is the hours and the out put is the cost.

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Which angles are vertical to each other ?

ankoles [38]

Answer:

5 and 7

Step-by-step explanation:

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3 years ago

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I need help solving this

pentagon [3]

Y=mx+b where m=slope=(dy/dx) and b=y-intercept (value of y when x=0)

You have two points...(1,-2),(3,2) so

m=(y2-y1)/(x2-x1)=(2--2)/(3-1)

m=4/2=2 now that you have the slope...

y=2x+b, you can use either point to solve for the y-intercept, I'll use (3,2)

2=2(3)+b

2=6+b

b=-4 so the line is:

y=2x-4

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3 years ago

Can someone solve 5(x-4) – 6(x+2) < 4 the inequality plz i need help.

zhuklara [117]

Answer:

1) x=-36

2) x>-11/12

3) x>-22

Step-by-step explanation:

6 0

4 years ago

14. Use the given degree of confidence and Sample data to construct a confidence interval for the population mean. Assume that t

nirvana33 [79]

Step-by-step explanation:

Confidence interval = mean ± margin of error

CI = μ ± ME

The mean is μ = 8.7.

Margin of error = critical value × standard error

ME = CV × SE

At 95% confidence and 9 degrees of freedom, CV = 2.262.

SE = s / √n

SE = 3.3 / √10

SE = 1.04

The margin of error is:

ME = 2.262 × 1.04

ME = 2.36

CI = 8.7 ± 2.36

CI = (6.34, 11.06)

7 0

4 years ago

Solve the following proportion for the unknown variable: 15/d = 24/40

Pavel [41]

Answer:
d = 25

Explanation:
To get the value of d, we will need to isolate the d on one side of the equation.

This can be done as follows:
 $\frac{15}{d} = \frac{24}{40}$ 

First, we will do cross multiplication as follows:
40*15 = 24*d
600 = 24d

Then, we will isolate the d as follows:
24d = 600
 $\frac{24d}{24} = \frac{600}{24}$

d = 25

Hope this helps :)

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4 years ago

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