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adelina 88 [10]
3 years ago
15

LOTS OF POINTS FOR HELLLP

Mathematics
2 answers:
lara31 [8.8K]3 years ago
5 0

Answer:

y = 3x+9

Step-by-step explanation:

We can use the slope intercept form

y = mx+b

where m is the slope and b is the y intercept

y = 3x +b

Substitute the point into the equation

6 = 3(-1) +b

6 = -3+b

Add 3 to each side

6+3 = -3+3+b

9 = b

y = 3x+9

Zepler [3.9K]3 years ago
5 0

Answer:

C.

Step-by-step explanation:

The answer is C. when using the formula C=2*pi*r and A=pi*r^2.

Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation.

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I need it now it’s important with number 7 and the button one
Sphinxa [80]

His model is incorrect because 20 x 7 is not 14, it is 140. If he had 140 instead of 14, he would have been correct.

I haven't done division like that in a long time, so this is what I think it will look like. I didn't add other work (multiplying 4 with #'s) but you can if you have to

8 0
3 years ago
Can some on help me on this question?
mario62 [17]

Answer:

x=10 and x-7 is the answer

Step-by-step explanation:

a)2x-7=13

2x=13+7

2x=20

x=20/2

x=10

b)3x+4=25

3x=25-4

3x=21

x=21/3

x=7

i hope it will help you

6 0
3 years ago
Read 2 more answers
G (x)=x-3 and h(x)= square root of x, find(g o h) (25)
nevsk [136]
H(25)  = sqrt25 = 5

g(5) = 5 - 3 = 2

answer is 2
7 0
3 years ago
2. f(x) = 3(x - 2)2 + 6<br>a. Standard Form:​
Alexandra [31]

Answer:

{3x}^{2}   - 4x + 10 = 0

Step-by-step explanation:

3(x - 2) {}^{2}  + 6 \\  3 \times x {}^{2}  - 4x +  {2}^{2}  + 6 \\ 3x {}^{2} - 4x + 4 + 6 \\  {3x}^{2}   - 4x + 10 = 0

6 0
3 years ago
88) 4 times a number decreased by 8 equals 40<br> A) x=80 B) x = 40 C) x=8<br> D) x = 12
dimulka [17.4K]
D=12
Because if you write down the equation 4x-8=40 and plug in 12. 4 times 12 is 48
. 48-8 equals 40
6 0
3 years ago
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