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borishaifa [10]
3 years ago
8

HELP PLEASE 14 POINTS

Mathematics
1 answer:
elixir [45]3 years ago
8 0

Answer:

about 40.39 MPH

Step-by-step explanation:

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Find the volume of this cylinder.Use pi=3.14
Y_Kistochka [10]
You find the volume dummy
5 0
3 years ago
Priya drew a circle whose area is 25 cm. Dan drew a circle whose diameter is 4 times the radius of Priya's circle. How many time
Vitek1552 [10]

Answer:

400

Step-by-step explanation:

first work out the radius of priya's circle with the equation a = \pi r^{2}

25 = \pi r^{2}

\frac{25}{\pi } = r^{2}

r = \sqrt{\frac{25}{\pi } }

we know the diameter of a circle is 2 times the radius so the diameter of priya's circle is 2x\sqrt{\frac{25}{\pi } }

this means that if the diameter of dan's circle is 4 times bigger it must be

8x\sqrt{\frac{25}{\pi } }

to find the radius of dan's circle we divide the diameter by to 2 to give

4x \sqrt{\frac{25}{\pi } }

then use the a=\pi r^{2} equation again

a= (4 \sqrt{\frac{25}{\pi } })^{2} \pi

which equals 400

hope that helped

6 0
3 years ago
The triangles are similar. If QR = 9, QP = 6, and TU = 19, find TS. Round to the nearest tenth.
sineoko [7]
Answer=12.6

QR=9
QP=6
TU=19
TS=?

The triangles are similar, so the following equation can be made

   9         6
____=____
  19        x        

Cross multiply
9x=114
divide both sides by 9
x=12.6 (with the 6 repeating) or 12 2/3

TS=12.6
3 0
3 years ago
Read 2 more answers
-9______ -7<br><br> A.&gt;<br> B.&lt;<br> C.=
Alla [95]

Answer:

B

Step-by-step explanation:

B, -9 < -7 it is correct ansewer

5 0
3 years ago
Perimeter question math
Aneli [31]
Perimeter is the sum of all sides in the figure. Here, all six sides are equal in length so it would be:

p = 6 * side
p = 6 * 3.9
p = 23.4 cm

In short, Your Answer would be: 23.4 cm

Hope this helps!
5 0
3 years ago
Read 2 more answers
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