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SSSSS [86.1K]
3 years ago
15

9. Write the equation in standard form: 25x2 –16y2 = 400

Mathematics
1 answer:
mafiozo [28]3 years ago
8 0

Answer:

25x^2 - 16y^2 - 400 = 0

Step-by-step explanation:

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If x^2= 20 what is the value of x
guajiro [1.7K]

x^2 = 20.

sqrt(x^2) = sqrt(20)

x = +- 2sqrt(5)

Answer:

2\sqrt{5} and -2\sqrt{5}

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3 years ago
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What is the diameter of a hemisphere with a volume of 651 m^3, to the nearest tenth<br> of a meter?
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Answer: 13.5 m, hope this helps :)

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The radius of a cylindrical construction pipe is 1.5 ft. If the pipe is 14 ft long, what is its volume?
erik [133]

Answer:

31.5π

Step-by-step explanation:

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F(x) = x + 4: find f(4) and f(x) = 10
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Answer:

f(4) = 8

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Step-by-step explanation:

Step 1: Define

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Step 2: Find f(4)

f(4) = 4 + 4

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8 0
3 years ago
In the coordinate plane, when you graph a positive 210 degree angle you go
Paraphin [41]

Answer:

clockwise and end up in the 3rd quadrant

Step-by-step explanation:

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