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Fudgin [204]
3 years ago
11

Evaluate the expression when c=3 and x=-5. c-7x

Mathematics
2 answers:
Sonja [21]3 years ago
8 0

<em>Look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em><em>⤴</em>

<em>Hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>.</em>

Nookie1986 [14]3 years ago
7 0

Steps to solve:

c - 7x; c = 3, x = -5

~Substitute

3 - 7(-5)

~Multiply

3 - (-35)

~Simplify

3 + 35

~Add

38

Best of Luck!

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Solve for V . 7v-20=-6(v-1) Simplify your answer as much as possible.
Pavlova-9 [17]

Answer:

v = 2

Step-by-step explanation:

You can start by distributing -6:

7v - 20 = -6v + 6

To combine the like x terms, you can add 6v to both sides:

7v - 20 = -6v + 6

+6v          +6v

13v - 20 = 6

Now add 20 to both sides to isolate the x term:

13v - 20 = 6

      +20   +20

13v = 26

You can divide by 13 on both sides to find v,

13v = 26

÷13    ÷13

v = 2

7 0
3 years ago
Read 2 more answers
A 6.3<br> B 7.5<br> C 6.7<br> D 6.5
Arlecino [84]
So in this case use sine to figure this out.

To convert 48 to the ratio, you gotta use a calculator unless you've memorized everything. do sin(48), which equals about 0.74.

Since Sin is opposite / hypotenuse, 5/h must equal 0.74

So do 5 / 0.74 to get about 6.76 as your answer.


3 0
3 years ago
In the 30-60-90 triangle below, side s has a length of<br> hypotenuse has a length of
nydimaria [60]
It’s g sorry if I’m wrong
8 0
3 years ago
How do I factor the following equation in the link? It has been factored, but I need to know the steps.
Vlad [161]

Given

2x^2-x-3=0

How to factor

Solution

Step 1

Multiply the first and last costant

-3\times2x^2=-6x^2

Step 2

Write out all the pair factors of -6x^2

\begin{gathered} -6x^2=-6x\text{ and x} \\ -6x^2=-x\text{ and 6x} \\ -6x^2=\text{ -3x and 2x} \\ -6x^2=\text{ -2x and 3x} \end{gathered}

Step 3

Check for the pair, such that when you add you will get -x

\begin{gathered} it\text{ is } \\ -3x+2x=-x \\ \therefore-3x,\text{ 2x} \end{gathered}

Step 4

Replace -x with -3x+2x in the equation

2x^2-3x+2x-3=0

Step 5

Put them into brackets Since + is at the center no stress.

(2x^2-3x)+(2x-3)=0

Step 6

Factor out what is common in the bracket

x(2x^{}-3)+1(2x-3)=0

Step 7

What is in the bracket are the same, pick one

\therefore(2x-3)(x+1)=0_{}

7 0
1 year ago
A repair person is scheduled to be at your apartment between 9:00 am to 12:00 pm but you have to leave at 11:30 to help out a fr
dlinn [17]

Answer:

5/6 chance

Step-by-step explanation:

If we were to look as 1 hour as a 2 halves, and we have 3 hours, from 9 to 12, we can do 2 halves x 3 hours to equal 6, thus have a probablity out of 6. If you were to be there without leaving, there would be 6/6 times, meaning you wouldn't miss him, but since there is a half hour you are gone, the fraction then becomes 5/6 instead of 6/6. In this case, there is a 5/6 chance that you will be home the same time the repair person comes.

7 0
3 years ago
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