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larisa [96]
3 years ago
10

How do I find the radius of this circle?​

Mathematics
1 answer:
Katena32 [7]3 years ago
8 0

Answer: the answer is 10

Step-by-step explanation: divide the sector area and measure  90 divided by 9 = 10

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“The height of an arrow” NEED HELP WITH THIS QUESTION ASAP!
goldenfox [79]

Answer:

a) t = 0.54 seconds

b) t = 8 seconds

Step-by-step explanation:

Given in the question the equation

h = 40t - 5t²

<em> where h is height in meters</em>

<em>             t is time in seconds</em>

<em />

Time it took to reach 20 meters

20 = 40t - 5t²

-5t² + 40t - 20 = 0

by using quadratic formula for factorisation

<h3>t = (-b± √(b)² - 4(a)(c) ) / 2(a)</h3>

t = 0.54 (upward motion)

or

t = 7.46 (downward motion)

b) Time it took to reach the ground

at ground h = 0

So,

0 = 40t - 5t²

t(40 - 5t ) = 0

t = 0 (at starting point)

or

40 -5t = 0

5t = 40

t = 40 /5

t = 8 seconds

7 0
3 years ago
What is 5+(123-113)divided by 10
babunello [35]

123-113= 10

10/10= 1                  

5+1 = 6

Your answer would be 6

4 0
3 years ago
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Can someone please help me ?
andreev551 [17]
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6 0
4 years ago
4+(-3) 4 plus negative 3
Nana76 [90]

Answer:

1

Step-by-step explanation:

5 0
3 years ago
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HELP PLEASE ASAP PLEASE HELP ASAP
Alex

Answer:

angle 3 and angle 4 are equal because the diagonals/2 are equal. Angle 4 equals angle 1 due to opposite interior angles thereom. 90 degrees minus 37=53 degrees which is angle 2. Since angle 2 is equal to the angle GKH, 53+53=106 and 180-106=74 degrees, and due to vertical angles, angle 7 is 74 degrees.

4 0
3 years ago
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