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eduard
2 years ago
8

If the diameter of a circle is 25 inches, what is the radius of the circle?

Mathematics
1 answer:
sergij07 [2.7K]2 years ago
8 0
Hello there, and thank you for posting your question here on brainly.

The diameter of a circle is how long it is from the left side of the circle to the right side.

The radius of a circle is the length of either the left or the right side to the middle.

So, the radius is half of a radius.

You can divide the known diameter by 2 to get your answer.

Its diameter is 25.

Divide 25 by 2.

25 / 2 = 12.5

Its radius is 12.5 in.

That would be answer choice A.

Hope this helped!! ☺♥
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an elevator is two floors below ground level and goes up 5 floors. write an addition equation that models the location of the el
sveticcg [70]
Below = a negative number (-)
-2
up = positive number
5
the equation would be -2+5 = ?
and the answer/ integer that represents the new location is 3
7 0
3 years ago
The tempature was very cold,tgen it doubled,then it dropped 10 degrees,and then it increased by 40 degrees.The tempature is now
ycow [4]

Answer

The initial temperature was T = -7 degrees

Step-by-step explanation:

Let the initial temperature be T.

- The tempature was very cold

Temperarure = T

- Then it doubled

Temperature = 2T

- Then it dropped 10 degrees

Temperature = 2T - 10

- And then it increased by 40 degrees.

Temperature = 2T - 10 + 40 = 2T + 30

The tempature is now 16 degrees

Temperature = 16 degrees

2T + 30 = 16

2T = -14

T = -7 degrees

Hope this Helps!!!

4 0
3 years ago
Read 2 more answers
Rewrite in simplest terms:
tangare [24]

Answer:

If one −5s−7(8s−1): -61s+7

If two −5s−7(8s−1): -112s+14

Step-by-step explanation:

-5s-7(8s-1)

Multiply -7 onto 8s and -1:

-5s-56s+7

add -5s and -56s:

-61s+7

−5s−7(8s−1)−5s−7(8s−1)

Multiply both -7 to 8s and -1

-5s-56s+7-5s-56s+7

add:

-112s+14

6 0
3 years ago
9 hundreds equal to how many tens?
Evgen [1.6K]
Ok so you do 900 ÷ 10 which = 90 and 90 x 10 = 900 so the answer is 90
4 0
2 years ago
If a cannonball is shot directly upward with a velocity of 160 ft per​ second, its height above the ground after t seconds is gi
Contact [7]

Step-by-step explanation:

If a cannonball is shot directly upward with a velocity of 160 ft per​ second. Its height as a function of time is given by :

h(t)=160t-16t^2 .......(1)

t is in seconds

(a) Velocity is given by :

v=\dfrac{dh}{dt}\\\\v=\dfrac{d(160t-16t^2)}{dt}\\\\v=(160-32t)\ ft/s  

Acceleration is given by :

a=\dfrac{dv}{dt}\\\\a=\dfrac{d(160-32t)}{dt}\\\\a=-32\ ft/s^2

(b) For maximum height put \dfrac{dh}{dt}=0

i.e.

160-32t=0\\\\t=5\ s

Put t = 5 s in equation (1). So,

h(5)=160t-16t^2\\\\h(5)=160(5)-16(5)^2\\\\h(5)=400\ ft

(c) When the ball reaches ground, its height is equal to 0. So,

h(t) = 0

160t-16t^2=0\\\\t(160-16t)=0\\\\t=0,t=10\ s

Hence, this is the required solution.

4 0
3 years ago
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