MATHEMATICS HIGH SCHOOL

−4x + 15= -13
what is x?

Answers

Answer 1
Answer: -4x+15=-13 \ \ \ |-15 \n \n -4x=-28 \ \ \ |:(-4) \n \n x=7

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Answer 2
Answer: solve your equation step-by-step.

−4x+15=−13

Subtract 15 from both sides.

−4x+15−15=−13−15

−4x=−28

Divide both sides by -4.

−4x/−4 = −28/−4

x=7

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Answers

This Took A While To Do

What equation (s) must be entered in a graphing utility to obtain the graph of x^(2)+y^(2)=25I NEED HELPPP PLEASEEEEEEE

Answers

Answer:

  x^2+y^2=25

Step-by-step explanation:

For my graphing utility, entering the given equation will generate the required graph. (The parentheses are not needed, but do no harm.)

What percent of 55 is 34

Answers

So,

To what percent 34 is of 55, we first need to find the fraction equivalent.

34 out of 55 parts or 34/55

Divide 34 by 55.

34/55 = 0.61818...

Now, we move the decimal point 2 places to the right in order to convert it to a percent.

6.1818...
61.81818...

Rounded to the nearest hundredth: 61.82%
Rounded to the nearest tenth: 61.8%
Rounded to the nearest percent: 62%

Show work please I need help with both questions 3 and 5 thanks

Answers

Answer:

B) {8.71}

Step-by-step explanation:

3. l.c.m=28

28×3/7=28×b-7/4

4×3=7(b-7)

12=7b-49

12+49=7b

61=7b

61/7=7b/7

8.71=b

b=8.71.

What is the solution set of (3x - 1)2 = 5?

Answers

(3x - 1)2 = 5
6x - 2 = 5
6x = 7
x = 7 / 6

Write an equation of a line in slope-intercept form if the slope is ½ and the y-intercept is -2.(A) y = (½)x + 2
(B) x - 2y = -4
(C) y = (½)x - 2
(D) 2y = x + 4

Answers

I was just learning about this. Okay,
First we need to plug in the values of the slope intercept form y = mx + b. b is the y-intercept so it is -2.

y = mx + -2.

Now lets find the rate of change or mx. the slope is 1/2 so the rate of change is 1/2. Lets plug in the value. 

y = 1/2x + -2

The answer is A. Hope this helped!!
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