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Anettt [7]
3 years ago
9

What is equivalent to 7x(4x-5)

Mathematics
2 answers:
lawyer [7]3 years ago
7 0

Answer:

28x - 5

Step-by-step explanation:

coeffecients with the same variable can be multiplied added subtracted divided so i multiplied 7 and 4 because they have the same variable which is X so it would be 28x and you can't multiply 7x by 5 because it doesnt have a variable consider multiplying if it has the same variable when it has a variable. so it would just be 28x - 5

Ad libitum [116K]3 years ago
5 0

7x(4x-5)

Distribute

28x^2-35x

Ans : 28x^2-35x

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steposvetlana [31]

Answer:

See below.

Step-by-step explanation:

2 \ln(x+2)=6

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e^{\ln(x+2)}=e^3

x+2=e^3

x=e^3-2

x\approx 18. 09

8 0
3 years ago
50 POINTS! + BRAINLIEST! PLEASE HELP
makkiz [27]

slope = rise over run = y/x

A (-1,3) slope = 3/-1 = -3

B (1,2) slope = 2/1 = 2

C (-3,-1) slope = -1/-3 = 1/3

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negative reciprocal of -3 is 1/3

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5 0
3 years ago
Read 2 more answers
The amount of money, in dollars, Sarah has in her savings account is modeled as a function of time in months. This function is r
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Answer:

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Step-by-step explanation:

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3 years ago
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(3x + 5y = 7<br> { 4x - y = 5
dalvyx [7]

Answer:

Step-by-step explanation:

Solution by substitution method

3x+5y=7

and 4x-y=5

Suppose,

3x+5y=7→(1)

and 4x-y=5→(2)

Taking equation (2), we have

4x-y=5

⇒y=4x-5→(3)

Putting y=4x-5 in equation (1), we get

3x+5y=7

⇒3x+5(4x-5)=7

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⇒23x=7+25

⇒23x=32

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→(4)

Now, Putting x=32/23

in equation (3), we get

y=4x-5

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2 years ago
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Step-by-step explanation:

first of all, g(x) has only negative functional result values (y) except for 0.

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so, the only possible right answers are the ones that include a minus ("-") sign.

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therefore, the right answer must be D.

g(x) = -3x²

it works for both points :

-3 = -3×1² = -3 correct

-3 = -3×(-1)² = -3×1 = -3 correct

8 0
3 years ago
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