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brilliants [131]
3 years ago
9

What is the value of X 15/2= 75/X

Mathematics
1 answer:
LekaFEV [45]3 years ago
4 0

Answer:

Step-by-step explanation:

15/2=75/x

Cross multiply

15x=150

x=10

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If a 3,500 investment earns 120 over 3 years, what is the annual rate?
Katarina [22]

Answer:

The annual rate of interest is 2 %

Step-by-step explanation:

Given as :

The investment amount = $ 3,500

The Interest earn on investment = $ 210

The time period = 3  years

Let The annual interest rate = R

From simple interest method :

Simple Interest =  

Or, 210 × 100 = 3500 × R × 3

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HOPE THIS HELPED!!

5 0
3 years ago
The graph below plots a function f(x):
Karolina [17]
By definition we have that the average rate of change of the function is given by:
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4 0
3 years ago
Prove that sin20sin40sin60sin80=3/16
never [62]
We'll use the following properties of sine and cosine to prove this:

sin(a)\cdot sin(b) = \frac12(cos(a-b) - cos(a+b))

cos(a)\cdot cos(b) = \frac12(cos(a+b) + cos(a-b))

cos(180+a) = cos(180-a)

Then it's just a matter of filling it in...

sin20sin40 * sin60sin80 = 1/2(cos20 - cos60) * 1/2 (cos20 - cos140) =

1/8( cos40 + 1 - cos160 - cos120 - cos40 - cos80 + cos80 + cos200) =

1/8(1 -  cos160 - cos120 + cos200) =

1/8(1 -  cos160 - cos120 + cos160) =

1/8(1 - cos120 ) = 1/8( 1 + 1/2 ) = 3/16

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3 years ago
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artcher [175]

Answer:

C

Step-by-step explanation:

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3 years ago
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skelet666 [1.2K]

Answer:

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✓3^2×3x^2y^2

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5 0
2 years ago
Read 2 more answers
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