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Mariulka [41]
3 years ago
8

How too work this out

Mathematics
1 answer:
Oduvanchick [21]3 years ago
4 0

Answer:

x = 4

Step-by-step explanation:

\frac{7 + 2x}{3} = 5

Multiply both sides of the equation by 3

7 + 2x = 15

Subtract 7 from both sides of the equation

2x = 8

Divide both sides of the equation by 2

x = 4

Hope this helps :)

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When the function below is graphed, how many x-intercepts does it have?y = 4x2 - 12x + 9?
Sladkaya [172]
Only x-intercept because if you want to know about x-intercepts so y will be zero (y=0)
then 0 =4x^2 -12x + 9
0=(2x-3)(2x-3)
0=2x-3
so x=3/2 that is x-intercept
7 0
3 years ago
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Plz help and I will give brainliest
DiKsa [7]

Answer:

a. f<g is one of them. On the number line, g is closest to 0, meaning it is greater than f.

b. h>0 is one answer. H is to the right of 0, meaning that h is greater than 0.

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Step-by-step explanation:

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4 0
3 years ago
Which is it? , 30 points
goldenfox [79]

Answer:

It's choice B.

Step-by-step explanation:

Let's look the one you have chosen (A):

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x-2 / 7 = f(x) - 8

x- 2 = 7(f(x) - 8)

x = 7(f(x) - 8) + 2

The inverse)= 7(x - 8) + 2

So it's not A.

B.  f(x) = 5(x/4) - 3

5x / 4 = f(x) + 3

5x = 4(f(x) + 3)

x = 4(f(x) + 3 / 5

So the inverse is  4(x + 3) / 5

So it is B.

5 0
3 years ago
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Leo buys 5 DVDs for 60$. At this rate, how much would he pay for 3 DVDs?
Dima020 [189]
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A line that forms and 90° angle with the original line is:
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a right angle

Step-by-step explanation:

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