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3 years ago

What is the midpoint of the segment shown below?

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

7 0

Add the x's and divide by 2 and then add the Y's and divide by 2

X: (-8 + -7)/2 = -15/2

Y: (-7+-8) /2 = -15/2

midpoint = (-15/2, -15/2)
Answer is C

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Determine the function f(x)= kx+m if f(x-1)-f(x)=2 and f(-2)=1-m

Oksanka [162]

$f(x) = kx + m \\ f(x - 1) = k(x - 1) + m$

$f(x - 1) - f(x) = 2 \\ k(x - 1) + m - kx - m = 2 \\ kx - k + m - kx - m = 2 \\ - k = 2 \\ k = 2$

$f( - 2) = k( - 2) + m = 1 - m \\ k( - 2) + m = 1 - m \\ ( - 2)( - 2) + m = 1 - m \\ 4 + m = 1 - m \\ 2m = - 3 \\ m = \frac{ - 3}{2}$

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2 years ago

how much air would be needed to fill a soccer ball with a radius of 14 cm? Round to the nearest cubic centimeter

Bezzdna [24]

Answer:

$11499\ cm^3$ of volume needed to fill a soccer ball

Step-by-step explanation:

It is required to find the amount of air would be needed to fill a soccer ball with a radius of 14 cm. It means we need to find the volume of spherical shaped spherical ball. Volume of sphere is given by :

$V=\dfrac{4}{3}\pi r^3\\\\V=\dfrac{4}{3}\times \dfrac{22}{7} \times (14)^3\\\\V=11498.66\ cm^3$

$V=11499\ cm^3$

So, $11499\ cm^3$ of volume needed to fill a soccer ball.

6 0

4 years ago

50th term of 7,5,3,1

Dovator [93]

7, 5, 3, 1 is an arithmetic sequence with common difference (d) = -2 and first term (a) = 7.
Tn = a + (n -1)d
T50 = 7 + (50 - 1) x -2 = 7 + 49 x -2 = 7 - 98 = -91

50th term = -91

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3 years ago

What percentage of the classics were checked out in the last month? A. 3.1% B. 10.3% C. 11.5% D. 16.2%

Ymorist [56]

Im pretty sure its B) 10.3%

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3 years ago

Read 2 more answers

PLEASE HELP I’LL PROMISE TO GIVE BRAINLESSNESS

ycow [4]

Answer:

a) If the diameter is 400 feet wide, then the radius is half that, which is 200 feet wide.

b) The circumfernce is π times the diameter, which is 400 feet. 400×π≈1256.64

c) She is not correct. She squared 400, which is 160000, when she should have squared 200, which is 40000. Then, multiply by π.

40000 × π ≈ 125663.7

7 0

3 years ago