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coldgirl [10]
4 years ago
11

If the expression x-3 has a value of -5, then what is the value of 3x-9

Mathematics
2 answers:
fenix001 [56]4 years ago
7 0
-24

If you plug in the x value, which in this case is -5, you should get -24 as your answer.
iris [78.8K]4 years ago
3 0

Answer:

-15

Step-by-step explanation:

Since 3x-9= 3(x-3), you would multiply -5 by 3 so, you would get -15.

Hope this helps!!!

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(2x + y = -2<br> (5x + 3y = -8<br> Solve by substitution
aliya0001 [1]

(2, -6)

Step-by-step explanation:

y = -2 - 2x

5x + 3 (-2-2x) = - 8

5x - 6 - 6x = - 8

-x - 6 = 8

- 6 + 8 = x

2 = x

x = 2

y = -2 -2x

y = -2 -2(2)

y = -2 -4

y = -6

(x, y) = (2, -6)

3 0
3 years ago
Read 2 more answers
Solve for x using zeros of function method<br>-x³+2x²+x-2=0​
Naya [18.7K]

Answer:

x = - 1, x = 1, x = 2

Step-by-step explanation:

The coefficients of the polynomial sum to zero, that is

- 1 + 2 + 1 - 2 = 0

This indicates that x = 1 is a zero

let x = - 1, then

- (- 1)³ + 2(- 1)² + (- 1) - 2 = 1 + 2 - 1 - 2 = 0

Thus x = - 1 is a zero

let x = 2

- (2)³ + 2(2)² + 2 - 2 = - 8 + 8 + 2 - 2 = 0

Thus x = 2 is a zero

The 3 zeros are x = - 1, x = 1, x = 2

3 0
3 years ago
What is the primary difference between exponential and linear functions?
Yanka [14]

Answer:

A

Step-by-step explanation:

We know that the growth of a linear function will always be constant. So, that eliminates B and C.

A quadratic function can be a function such as x^2, or 5x^2+7x, etc.

An exponential function wouldn't be x^2, it would be 2^x! Or 3^x, or (1.738283)^x, etc. Therefore, D is eliminated.

So, the answer is \boxed{A} and we're done!

4 0
2 years ago
Bill lent some money to his two brothers he wrote down the mount so he would not forget the list shows his younger brother with-
pav-90 [236]
<span>C. The older brother payed bill $12 .75 and the younger brother does not owe him any money</span>
8 0
3 years ago
Solve for [x]. The polygons in each<br> 2x-20<br> 16<br> 16<br> 8
Nataly_w [17]

\quad \huge \quad \quad \boxed{ \tt \:Answer }

\qquad \tt \rightarrow \:x = 16

____________________________________

\large \tt Solution  \: :

If two polygons are similar, their corresponding sides ratios will be equal to each other.

\qquad \tt \rightarrow \:  \cfrac{8}{16}  =  \cfrac{2x - 20}{24}

\qquad \tt \rightarrow \:  \cfrac{1}{2}  =  \cfrac{2x - 20}{24}

\qquad \tt \rightarrow \: 2x - 20 =  \cfrac{24}{2}

\qquad \tt \rightarrow \: 2x = 12 + 20

\qquad \tt \rightarrow \: 2x = 32

\qquad \tt \rightarrow \: x = 16

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

7 0
2 years ago
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