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3 years ago

What is the sign of sum and product

Mathematics

1 answer:

Tasya [4]3 years ago

3 0

Answer:

Look below

Step-by-step explanation:

Sigma (summation) and Pi (product) notation are used in mathematics to indicate repeated addition or multiplication

$\pi$

Hope this helps

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Give four rational numbers betwee1by2 and 6 by 7

MA_775_DIABLO [31]

Answer:

Therefore four rational numbers between 1 and 2 are 9/8, 5/4, 3/2, and 7/4 Step-by-step explanation:

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Find the percentage based upon 400 people in the survey. 16%

MA_775_DIABLO [31]

To find a percentage, you the decimal point in the percent two places to the right 16% = 0.16. Then multiply.

0.16 • 400 = 64

16% of 400 = 64

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3 years ago

How do you write 77/20 in a decimal

Sveta_85 [38]

Writing it as a decimal would be 3.85 you just divide it

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Ethan is watching a satellite launch from an observation spot 1 mile away. Find the angle of elevation from Ethan to the satelli

Thepotemich [5.8K]

Answer:

$\theta=80.53^{\circ}$

Step-by-step explanation:

From the attached figure, AB is the height of the satellite and the distance between Ethan and the ground is 1 mile.

We can find the angle of elevation from Ethan to the satellite using trigonometry as follows :

$\tan\theta=\dfrac{P}{B}\\\\\tan\theta=\dfrac{6}{1}\\\\\theta=\tan^{-1}(6)\\\\\theta=80.53^{\circ}$

So, the angle of elevation is 80.53 degrees.

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3 years ago

What is the rate of change.

Finger [1]

Answer:

-1

Step-by-step explanation:

Over 12 on the x axis it goes down 12 on the y axis so the rate of change is -1

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3 years ago