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Arte-miy333 [17]
2 years ago
14

Factor each expression. 4x² +25

Mathematics
1 answer:
snow_tiger [21]2 years ago
5 0

Answer:

-5,5

Step-by-step explanation:

(2x+5)( 2x-5) x-5=0 x+5=0 I think that's what you do not sure

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Water flows at a rate of 8000 cubic inches per minute into a cylindrical tank. The tank has a diameter of 128 inches and a heigh
beks73 [17]

Answer:

The height of the water = 6.2 in. to the nearest tenth

Step-by-step explanation:

∵ The rate of flows of water into the tank = 8000 in.³/min.

∴ The volume of the water in the tank after 10 min. = 8000 × 10 = 80000 in.³

∵ The water take the shape of the tank

∴ The height of the water = volume of water ÷ Area of the base of the tank

∵ The tank is cylinder with diameter 128 in. and height 72 in.

∴ The area of the base of the tank = π(128/2)²

∴ The height of the water = \frac{80000}{\pi(64)^{2}}=6.2169899

∴ The height of the water = 6.2 in. to the nearest tenth

 

5 0
3 years ago
Find the value of each variable that ensures that each equilateral is a parallelogram
puteri [66]
Opposite sides are equal in a parallelogram.

3a-12 = \frac{1}{2}a-7

\frac{5}{2}a = 5

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8 0
3 years ago
Divison i need help with that
fiasKO [112]

Answer:

K What's the problem?

Step-by-step explanation:

7 0
3 years ago
Which Greek mathematician wrote the most definitive text on geometry, one that is still referred to today?
frutty [35]
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5 0
3 years ago
After joining two pieces of a picture frame together, a frame maker checks her work by measuring the diagonal (see the illustrat
tigry1 [53]
The diagonal (hypotenuse) is 13 in.

You need to use the Pythagorean Theorem

{a}^{2} + {b}^{2} = {c}^{2}
then just plug in the numbers and solve for c.

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\sqrt{169} = c
13 = c
6 0
3 years ago
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