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Kay [80]
3 years ago
8

-5(x-6)=15 what is x

Mathematics
1 answer:
Valentin [98]3 years ago
8 0

Answer:

9

Step-by-step explanation:

-5(x-6)=15

Substitute.

-5x+30=15

Subtract 30 From 15

-5x=-15

Divide -5

X=3

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Which function g represents the exponential function f(x) = 5x after a vertical stretch by a factor of 2 and a reflection across
irinina [24]

Answer:

g(x) = -2 • 5^x

Step-by-step explanation:

the reflection across the x-axis makes the equation negative. the 2 is the verticals stretch.

(also got the answer correct on a test)

7 0
3 years ago
Solve by any method (graphing, substitution, linear combination) <br> y=x−7 <br> 5x+2y=7
Virty [35]

Answer:

  (x, y) = (3, -4)

Step-by-step explanation:

See the attached for a graph.

3 0
3 years ago
I asked before and didn’t get an answer I really don’t understand this thanks.
dmitriy555 [2]
The answer is D, because that is what you should get when you multiply it out.

4x^2 times x^2 = 4x^4 because...

1) multiply the 4 and the one in front of the x on the second term = 4 then

2) multiply x^2 times x^2 to get x^4, not x^3, so you can immediately eliminate A and B to save time.

Now let's deal with the second part..."may or may not be" part

A polynomial is an expression with more than two algebraic terms

terms are like...
2x + 3y ---there's two terms there, eventhough the 2 and x are multiplied, it doesn't count (same with the 3 and y)
since it only have two terms, not more than two terms, it is called a binomial, not polynomial. I think that's what they mean by that

one term with a variable (y,x,and so on) is called a monomial

one term with no var is called a constant

there's many more but hope this gave you some help
3 0
3 years ago
Read 2 more answers
Mr. Pham wrote the equation below on the board. 18 - 7x = -20.5 What is the value of x?
slavikrds [6]
Use the arithmetic operations to get the variable x on one side of the equation and everything else on the opposite side.

If something is being is being done to a variable, we undo that operation by using the inverse of that operation.

For example, if 10 is being added to x, we use the inverse of addition or subtraction.

18 - 7x = -20.5

We variable x is being multiplied by 7 and is subtracting 18. We need to undo all those operations.

18 - 7x = -20.5
-7x = -38.5

Now the variable is only being multiplied by -7. Reverse the operation.

-7x = -38.5
x = 5.5

So, x is equal to 5.5.
7 0
3 years ago
Read 2 more answers
5) The scale of a map is 1 inch : 10 miles.
stich3 [128]

Answer:

12

Step-by-step explanation:

ur gay

3 0
3 years ago
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