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3 years ago

−15+3x=7 solve for X

Mathematics

2 answers:

Anastasy [175]3 years ago

8 0

3x = 7 + 15
3x = 22
x = 22/3
x = 7 1/3

MAVERICK [17]3 years ago

7 0

Answer:

Step-by-step explanation:

-15 + 3x = 7

3x = 7 + 15

3x = 22

x = 22/3 or 7 1/3 <==

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The graph of f passes through left parenthesis negative 4 comma 3 right parenthesis(−4,3) and is perpendicular to the line that

shusha [124]

Answer:

The answer to your question is y = -11/2x - 19

Step-by-step explanation:

Data

Point (-4, 3)

⊥ to the line x- intercept of 22 and y-intercept of -4.

Process

1.- Find the equation of the perpendicular line

This line has passes through the points (22, 0) and (0, -4)

Slope = $\frac{-4 - 0}{0 - 22} = \frac{-4}{-22} = \frac{2}{11}$

2.- Find the slope of the new equation

Slope = $\frac{-11}{2}$ because the lines are perpendicular

3.- Find the equation of the new line

y - 3 = -11/2 (x + 4)

y - 3 = -11/2x - 44/2

y - 3 = -11/2 x - 22

y = -11/2 x - 22 + 3

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See the graph below

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3 years ago

What unit of measure would you use to measure length of piece of paper?

GenaCL600 [577]

Typically, you would use inches.

4 0

4 years ago

A bag contains four batteries, all of which are the same size and are equally likely to be selected. Each battery is a differen

GuDViN [60]

Answer:

A) 64 ways in sample space

B) 24 ways in sample space

Step-by-step explanation:

Given:-

- A bag contains 4 batteries

- We are to select 3 at random

Find:-

how many points will be in the sample space if the batteries are selected

A) with replacement

b) without replacement

Solution:-

- The counting principle says if there are "m" ways to do one thing

and "n" ways do do another, then there are (m*n) ways of doing both.

A. 4 ways to grab first battery; put battery back;

4 ways to grab second battery; put battery back;

4 ways to grab second battery

======================================

4^3 = 64 ways in the sample space.

======================================

B. 4 ways to grab first battery; DON'T put battery back; You are left with 3.

3 ways to grab second battery; DON'T put battery back; You are left with 2

2 ways to grab third battery;

======================================

4*3*2 = 24 ways in the sample space.

======================================

6 0

3 years ago

Read 2 more answers

Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a fl

Salsk061 [2.6K]

So to find the answer you need to use SOHCAHTOA
Sine= Opposite/ Adjacent
Cosine= Adjacent/Hypotenuse
Tan = opposite/adjacent

angle ADC is 60 so to find the length of line ABC we would use the angle and the line DC.
We would use Tan with opposite over adjacent
Tan 60 = opp. / 5 root 3
opp. = 15
so that is the length of the entire thing, all you need to do now is find the length of the single line of BC which we can use the same equation with just Tan 30 now.
Tan 30 = opp. / 5 root 3
opp. = 5
next you need to take the entire ABC length and subtract the length of BC to get AB
15-5 = 10
so the answer would be C

8 0

3 years ago

Veronica works each day and earns more money per hour the longer she works. Write a function to represent a starting pay of $20

MArishka [77]

<u>Answer:</u>

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<u>Solution: </u>

Let us assume that Veronica worked x hours

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