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Cloud [144]
3 years ago
5

(I will give brainliest, a thanks, 30 points, and 5 stars if you can answer these 2 questions)

Mathematics
1 answer:
dimulka [17.4K]3 years ago
4 0

Answer:

1. 9 pi, 2. 121 pi

Step-by-step explanation:

The formula for circumference is pi d. So for the first question the radius would be three. The you do pi r ^2 for area so 3 times pi squared. Which is 9 pi. For the second you will do the same thing you will do 22 pi divided by 2 which is 11 pi then you will square 11pi and get 121 pi

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15 POINTS!!!!!!! What is the equation of the line in slope-intercept form? Line on a coordinate plane. Line runs through points
suter [353]

Answer:

y=\frac{4}{3}x+4 is the equation of line in slope intercept form.

Step-by-step explanation:

Line runs through points begin ordered pair negative 3 comma 0 end ordered pair and begin ordered pair 0 comma 4.

First ordered pair: (-3,0)

Second ordered pair: (0,4)

We have two points and need to find equation of line in slope intercept form

\text{Slope (m)}=\dfrac{y_2-y_1}{x_2-x_1}

\text{Slope (m)}=\dfrac{4-0}{0-(-3)}=\dfrac{4}{3}

y-intercept, when x=0 , (0,4)

Equation of line in slope intercept form:

y=mx+b

where, m=\frac{4}{3} and b=4

Required equation:

y=\frac{4}{3}x+4

Thus, y=\frac{4}{3}x+4 is the equation of line in slope intercept form.

3 0
3 years ago
Read 2 more answers
Multiply (2x+3) (-x -2)
Marysya12 [62]

Answer:

-2x^{2} -7x-6

Step-by-step explanation:

(2x + 3) (-x - 2)

distribute first term, to the second term:

2x(-x) + 2x(-2) + 3(-x) + 3(-2)

multiply:

(-2x^{2}) + (-4x) + (-3x) + (-6)

-2x^{2} -4x-3x-6

combine the like terms:

-2x^{2} - 4x - 3x - 6

             -7x

-2x^{2} - 7x - 6

final answer :

-2x^{2} - 7x - 6

hope this helped !!

mark me brainliest :D

6 0
2 years ago
Solve for x pls help
zepelin [54]

Your answer would be

A) 20.3

i am not sure about this but yeah also can i have brainliest

5 0
3 years ago
What are the values of a, b, and c in the quadratic equation 0 = x2 – 3x – 2?
eimsori [14]
General form is ax^2 + bx + c = 0

so comparing the equation in the question to this we get:-

a = 1, b = -3 and c = -2 Answer
5 0
3 years ago
Read 2 more answers
7. Solve: 33 +21 + 3 - 5
muminat

Answer:

52

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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