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ollegr [7]
3 years ago
15

Find the mean, variance, and standard deviation. If necessary, round your answer to the nearest hundredth.

Mathematics
1 answer:
storchak [24]3 years ago
4 0

Your answer would be 4.

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Type the correct answer in the box. If necessary, use / for the fraction bar and simplify the fraction. cos(75°)cos(15°) =
diamong [38]

Answer:

1/4

Step-by-step explanation:

using the product-to sum formulas, this is

1/2 (cos(75+15) + cos(75-15))

5 0
3 years ago
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Corrine wrote temperatures in degrees Celsius and the equivalent temperatures in degrees Fahrenheit.
san4es73 [151]
Hi, thank you for posting your question here in Brainly. 

Celsius and Fahrenheit are units of temperature, and they can be converted using a formula.

F = C*1.8 + 32

For example, 30°C is
F= 30*1.8 + 32
F = 86°F

Or an easier way to remember without memorizing the formula is by remembering the normal boiling point of water which is 100°C = 212°F.
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3 years ago
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Give tan(0)=4/3 and sin(0)= -4/5, find cos(0)
tangare [24]

Step-by-step explanation:

tan (0)=sin (0)/cos (0)

cos (0)=sin (0)/tan (0)

= -4/5/4/3

= -3/5

4 0
3 years ago
What’s the area of the trapezoid
Citrus2011 [14]

Answer:

i will give you the steps to find out how

Step-by-step explanation:

Explanation: To find the area of a trapezoid, multiply the sum of the bases (the parallel sides) by the height (the perpendicular distance between the bases), and then divide by 2.

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3 years ago
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Help??will mark brainlest
skelet666 [1.2K]

Answer:

c d a d

Step-by-step explanation:

i got it correct

5 0
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