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2 years ago

Help With this Math problem

Mathematics

1 answer:

poizon [28]2 years ago

8 0

Answer:

a) c = 11.2
b) c = 2

Step-by-step explanation:
$c^{2} = a^{2} + b^{2}$

c = line across from the right angle

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In 12 seconds, Valerie counts 6 vehicles passing by her house. At that rate, how many vehicles would pass by in 4 hours

mart [117]

60/12
30 * 4 = 110 cars

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3 years ago

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

$y=3x+12$

4 0

3 years ago

Can someone please help me with this question

vladimir2022 [97]

I think 3.2 is correct!

4 0

4 years ago

What does P(B/A) = 0.50 mean in terms of the Venn diagram?

Serggg [28]

Answer:

of the 4 people that have a sister, 2 of them have a brother

Step-by-step explanation:

probability of B given A

given that the person has a sister, what is the probability they have a brother

P (B/A) = 1/2

with this venn diagram

of the 4 people that have a sister, 2 of them have a brother

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4 years ago

Simplify 1/3(1/2-1/3)-1/3(1/3-1/2)

zhuklara [117]

Answer:

im pretty sure its 1/9

Step-by-step explanation:

1/3 x 1/6-1/3 x (-1/6)

1/18 + 1/18

5 0

3 years ago