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alekssr [168]
3 years ago
6

Can you very be kind and answer

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
4 0

area of a circle is PI x r^2

2 = d/2 = 5.4/2 = 2.7 cm

 using 3.14 for PI

3.14 x 2.7^2 = 22.89 square inches

360 degree in a circle, shaded area is 180 degree, which is 50%

 so 22.89 x .5 = 11.45 cm^2

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I needs help again but i also mark brainliest if ppl answer
ad-work [718]

Answer:

Your answer is a trapezoid

Step-by-step explanation:

The picture below is proof

4 0
3 years ago
Aaron is using Dimensional Analysis to solve the following question:
Arturiano [62]

Answer:

<u>1 foot :- 1.45 inches. If the vine grows up 2.9 feet pet day ,Then in Inches that would be 1.45 grows in per hour .....</u>

Step-by-step explanation:

<h3>Hope this helps !! </h3>
3 0
2 years ago
Can someone help me with my last question
slega [8]
What you need to do is that you plug p=3 into the expression [(5.4p+5)+(8+3.2p)]/2 and you have:
[(5.4*3+5)+(8+3.2*3)]/2
= (21.2+ 17.6)/2
= 38.8/2
= 19.4

The average of the two boys' points is p=3 is 19.4 points~

4 0
3 years ago
Find an equation of the sphere with center (4, −12, 8) and radius 10.
Lorico [155]

Answer:

Step-by-step explanation:

To find an equation of the sphere with center (4, −12, 8) and radius 10

(x-4)^2+(y+12)^2+(z-8)^2 = 100

intersection with xy-plane

Put z=0

(x-4)^2+(y+12)^2+(0-8)^2 = 100

(x-4)^2+(y+12)^2 = 36

(A circle with centre at (4,-12) and radius 6)

intersection with xz-plane

Put y =0

(x-4)^2+(0+12)^2+(z-8)^2 = 100

(x-4)^2+(z-8)^2 = -44

Sum of squares cannot be positive, so DNE

intersection with yz-plane

Put x=0

(0-4)^2+(y+12)^2+(z-8)^2 = 100

(y+12)^2+(z-8)^2 = 84

A circle in YZ plane with centre at y =-12 and z =8 and radius square root of 84

5 0
3 years ago
The distance traveled varies directly with the time spent in motion when speed is held constant. If d represents the distance tr
GrogVix [38]
We have a direct variation. Distance, D, varies directly as time, t.  
So D = Kt where K is the constant. In this case, speed. So D = Kt is our constant of variation. 
If D = 150 miles and t = 4 hours 
Then we have 150 = K (4) 
K = 150/4 = 37.5. The constant of variation is 37.5.  
If you keep traveling at a constant speed K = 37.5 and D = 200. We have 
200 = 37.5 * t 
t = 200/37.5 = 5.333 hours.
5 0
3 years ago
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