2 years ago

The equation for the rollercoaster before is f(x)=-0.2x^2-2x

Mathematics

1 answer:

katovenus [111]2 years ago

7 0

??? The answer is not able to be found for the fact that there are 3 numbers all coming from x.

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What are two numbers that add together to make -7 and that multiply to make 6

kumpel [21]

-2 and -4 this is the answer

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3 years ago

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Samantha owes her father $7 she just got paid $5.50 for babysitting if she gives that money to her dad how much will she still o

zalisa [80]

Answer:

$1.5

Step-by-step explanation:

$7- 5.50= 1.5

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3 years ago

I need help. someone help please!

Vikentia [17]

Sorry, I think there is missing context?

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3 years ago

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Please help me with these two questions, 10 points for each so in total 20!!

saul85 [17]

Answer:

$\large\boxed{Q2.\qquad C.\ -2x+y=-2}\\\boxed{Q4.\qquad C.\ y=3x+12}$

Step-by-step explanation:

Q2:

The point-slope form of an equation of a line:

$y-y_1=m(x-x_1)$

m - slope

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (4, 6) and (6, 10). Substitute:

$m=\dfrac{10-6}{6-4}=\dfrac{4}{2}=2$

$y-6=2(x-4)$ use distributive property

$y-6=2x-8$ add 6 to both sides

$y=2x-2$ subteact 2 from both sides

$-2x+y=-2$

Q4:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

Put the slope m = 3 and the coordinateso f the point (-2, 6) to the point-slope form of an equation of a line:

$y-6=3(x-(-2))$

$y-6=3(x+2)$ use distributive property

$y-6=3x+6$ add 6 to both sides

$y=3x+12$

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3 years ago

Find the diameter when the circumference is 47.1 in

MissTica

C = pi x d

3,14 x d = 47,1

d = 15

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2 years ago