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noname [10]
3 years ago
8

Can someone help me me I think I'm bad at this honestly..

Mathematics
1 answer:
Fed [463]3 years ago
7 0

Answer:

J

A=7.07cm^2

Step-by-step explanation:

A= (pi)(r^2)

diameter=3

radius= 1/2 of the diameter = 1.5

pi = approximately 3.14

A= (3.14) (1.5)^2

A= 7.065 ----> rounds to 7.07

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What is the equation of a line through the points (0, 9) and (3, 0)?
erastova [34]

Answer:

  m = StartFraction 9 minus 0 Over 0 minus 3 EndFraction; y = –3x + 9

Step-by-step explanation:

The given points are the y-intercept and the x-intercept, so they can be used directly in the intercept form of the equation of a line.

  x/(x-intercept) +y/(y-intercept) = 1

  x/3 +y/9 = 1

Multiplying by 9 gives ...

  3x +y = 9

This can be rearranged to the slope-intercept form ...

  y = -3x +9

_____

The answer selection shown above is the only one that matches the slope and y-intercept of the line through the given points.

7 0
3 years ago
Read 2 more answers
Find the midpoint of AB when A=(1,-2) B=(1,-1)
Reil [10]

Answer:

Midpoint Of AB = ( 1+1/2 , -2-1/2)

= (2/2 , -3/2)

= ( 1 , -1.5)

Hope this helps

Please mark Branliest.

6 0
3 years ago
What is the area of the rectangle?<br> [1] ft2
Olenka [21]
A^2+b^2=c^2 (Pythagoran theorem)

-> 30^2 + length^2 = 78^2
-> length = √6084-900 = <span>√5184 = 72 ft

=> area = length x width = 72 x 30 = 2160 ft^2</span>
3 0
4 years ago
PLEASE ANSWER!!
mario62 [17]
2r^2+3s^3-r^2+4t^2-r^2
Lets just plug everything in
2(-2)^2+3(-3)^3-(-3)^2+4(5)^2-(-2)^2
Simplify
8+(-81)-9+100-4
108-94
14
5 0
3 years ago
How do you solve this pls help
Ne4ueva [31]
The first one is right because the mean is the average so it has to be in between. Usually. Hoped this helped!
3 0
3 years ago
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