2 years ago

What is a rational number

Mathematics

1 answer:

siniylev [52]2 years ago

7 0

It's a number that can be expressed as a fraction, the numerator and the denominator of which, are integers.

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If sin 0 = 7/25, find csc 0

kipiarov [429]

Answer:

$csc(\theta)=\frac{25}{7}$

Step-by-step explanation:

We know that:

$sin(\theta)=\frac{7}{25}$

And we want to find:

$csc(\theta)$

Remember that there is a trigonometric identity that relates the $sin(\theta)$ function with the $csc(\theta)$ function

$csc(\theta)=\frac{1}{sin(\theta)}$

Then if $sin(\theta)=\frac{7}{25}$ this means that:

$csc(\theta)=\frac{1}{\frac{7}{25}}$

Finally:

$csc(\theta)=\frac{25}{7}$

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andrey2020 [161]

Answer:

Thats siblings for you

Step-by-step explanation:

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2 years ago

At track practice,Sheila worked on the long jump. Her first jump measured 3 yards, 2 feet, 8 inches. Her second jump measured 2

jolli1 [7]

The length is 19.5 feet. this is because when you add the yards, it equals 15 feet. Next, add 1 + 2 feet from the first and second jump. 10+8 inches equal 1.5 feet. Next, add 15 feet+3 feet+1.5 feet to get 19.5 feet.

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2 years ago

The perimeter of a square pool is 15x + 3. How long is each of the pool?

Zigmanuir [339]

the answer is that each side is 6x feet long

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2 years ago

Helppp I just need it to be explained. #7

IceJOKER [234]

#7 is the easiest one.

a + bi = -9 + 4i

see the expression on either side matches up so..
a = -9 and b = 4

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