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Tatiana [17]
2 years ago
8

Find the area of the circle. round your answer to the nearest hundredths. the diameter is 2cm​

Mathematics
1 answer:
masha68 [24]2 years ago
6 0

Answer:

3.14 cm squared

Step-by-step explanation:

First, identify the formula necessary to calculate the area of the circle.

Area of a circle = pi x r^2

Remember, the radius is just half of the diameter! Then to square a number, is to multiply it by itself once.

pi x 1^2 =?

pi x 1

Pi

The circumference of your circle is approximately 3.14 cm squared.

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A golfer attempts to hit a golf ball over a valley from a platform above the groun
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Answer: NO

Step-by-step explanation:

The functions that models the height of the ball is given as

h(t) = -5t2 + 40t + 100

Where

a = -5, b = 40, c = 100

The time the ball will reach the maximum height will be the vertex of the parabola. At the line of symmetry, the time t will be:

t = -b/2a

Substitute b and a into the formula above.

t = - 40 / -5 = 8

Substitute 8 for t in the function f(t)

h(t) = - 5(8)^2 + 40(8) + 100

h(t) = -5(64) + 40(8) + 100

Open the bracket

h(t) = -320 + 320 + 100

h(t) = 100

The maximum height of the ball is 100m

Given that the power lines is 185 metres above the ground. The golf ball will therefore not hit power lines because the maximum height the ball can go is 100 metres

3 0
3 years ago
Los 3/4 de un número es 120. ¿Cuál es el número?
Marina CMI [18]
Maybe...... E if that’s not right then try..... b
5 0
2 years ago
Read 2 more answers
Twice m decreased by 11
iogann1982 [59]

Answer:

2m - 11

Step-by-step explanation:

twice m = 2m

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6 0
2 years ago
Please help, i will give brainliest to whos first
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6 0
3 years ago
Point B is in between A and C in a segment. AB= 22 and BC=30 Find AC
dolphi86 [110]

Answer:

AC = 52

Step-by-step explanation:

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