3 years ago

What is the range of the function y=\cos 2x ?

Mathematics

1 answer:

sattari [20]3 years ago

7 0

All real numbers is the answer

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Solve for the variable r in this equation: s = 2_rh

svp [43]

I hope this helps you

s=2.r.h

r=s/2h

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3 years ago

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L E N 4 8 1 O k M What is the value of k? k=

s2008m [1.1K]

Answer: 2

Step-by-step explanation:

By the geometric mean theorem,

$\sqrt{8k}=4\\\\8k=16\\\\k=\boxed{2}$

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1 year ago

Find the value of each trigonometric ratio. 18) cos X Y 24 24 25 24 A) C) 25 B) D) 24 25 25

irina [24]

Answer:

Step-by-step explanation:

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2 years ago

The temperature at 6.00 am was - 12 the temperature increased by 1/2 each hour for 6 hours what was the temperature in degrees F

Illusion [34]

Answer: -9 degrees Fahrenheit

Step-by-step explanation:

Given: Temperature at 6:00 AM = -12 degrees Fahrenheit

Temperature increased each hour = $\dfrac12$ degrees Fahrenheit

Temperature increase in 6 hours = $6\times\dfrac12=3\text{ degrees Fahrenheit}$

Temperature at noon = Temperature at 6:00 AM+Temperature increase in 6 hours

= -12+3 degrees Fahrenheit

= -9 degrees Fahrenheit

Hence, the temperature in degrees Fahrenheit at noon= -9 degrees Fahrenheit

8 0

2 years ago

4(x - 2 + y) =( Apply a distribute property to create an equivalent expression

Leno4ka [110]

Answer:

4x + 4y - 8

Step-by-step explanation:

Step 1: Distributive Property

Distributive property says you would multiple all the terms inside the bracket by the coefficent infront of the bracket

Step 2: Solve

$4x-8+4y\\4x+4y-8$

Step 3: Therefore Statement

Therefore 4(x - 2 + y) simplifies into 4x + 4y - 8

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2 years ago