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stiv31 [10]
2 years ago
10

What is the value of R? (Assume R > 0) R/4=36/R A)8 B)9 C)12 D) 20

Mathematics
1 answer:
spayn [35]2 years ago
5 0
The Answer Should Be D
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Verify the identity
Thepotemich [5.8K]

<u>Given</u>:

Given that we need to prove the identity \sin x+\sin x \tan ^{2} x=\tan x \sec x

<u>Proof</u>:

Step 1: Factor out the common term sin x, we get;

\sin x\left(1+\tan ^{2} x\right)=tan \ x \ sec \ x

Step 2: Using the identity 1+tan^2 x=sec^2x

\sin x \sec ^{2} x=tan \ x \ sec \ x

Step 3: Reciprocating sec x, we get;

\sin x \cdot \frac{1}{\cos ^{2} x}=tan \ x \ sec \ x

Step 4: Splitting the denominator, we have;

\frac{\sin x}{\cos x} \cdot \frac{1}{\cos x}=tan \ x \ sec \ x

Simplifying, we get;

\tan x \sec x=\tan x \sec x

Thus, the identity is proved.

5 0
3 years ago
15/17 in simplified, rational form?
aivan3 [116]

Hey!

----------------------------------------------

Rational Number - Any number that can be written as a fraction.

Prime Number - Is a number that it's only factor is 1 and itself.

----------------------------------------------

Solution and Answer:

15/17 ≈ 0.88

15/17 cannot be simplified because 17 is a prime number and both numbers don't have common prime factors.

----------------------------------------------

Hope This Helped! Good Luck!

4 0
3 years ago
100 points
mylen [45]

Answer:127

all you do is subtract -70 by 57 and it will give you a negative but get rid of it and you get 127 or just take the - away from -70 and add 57

3 0
2 years ago
What does the number 120 in the equation mean y= 5x + 120
Maru [420]

Answer:

120 is the y intercept in the formula  y=mx+b

hope this helped!!

7 0
3 years ago
How do you solve this math problem-2(x+3y)=18
ss7ja [257]
Greetings!

Solve for <em>x</em>.
-2(x+3y)=18
Distribute the Parenthesis. <em>How?</em> Multiply all of the terms inside the parenthesis by the number outside the parenthesis.
(-2)*x+(-2)*3y=18
-2x-6y=18
Add 6y to both sides.
(-2x-6y)+6y=(18)+6y
-2x=18+6y
Divide both sides by -2.
(-2x)/-2=(18+6y)/-2
The Answer Is:
x=-9-3y
x=-3y-9

Hope this helps.
-Benjamin
7 0
3 years ago
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