2 years ago

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

Mathematics

1 answer:

sattari [20]2 years ago

7 0

All real numbers is the answer

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What is the answer to this problem

alexandr402 [8]

9514 1404 393

Answer:

5.7·10^-3

Step-by-step explanation:

The expanded scale shows point P lies 7/10 of the way between 5 and 6 times 10^-3. Its value is 5.7·10^-3.

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2 years ago

Given the diagram below with line DE║ line AC. Find BC.

Karolina [17]

Answer:

13.5

Step-by-step explanation:

In triangle ABC, DE || AC

Therefore by basic proportionality theorem:

$\frac{BD}{DA} = \frac {BE}{EC} \\\\\therefore \frac{4}{8} = \frac {BE}{9} \\\\\therefore \frac{1}{2} = \frac {BE}{9} \\\\\therefore BE = \frac{9}{2} \\\\\therefore BE = 4.5\\\because BC = BE + EC \\\therefore BC = 4.5 + 9\\\huge \red {\boxed {\therefore BC = 13.5}} \\$

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2 years ago

The furniture company increased the item fee to $0.75 per pound.Mr.Jackson buys a piece of furniture that weighs 8 pounds.He thi

Vinil7 [7]

Mr.Jackson is incorrect because 0.75 is per pound it's not whats added onto 8 pounds

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2 years ago

A cone has a volume of 24 cubic inches. What is the volume of a cylinder that the cone fits exactly inside of?

ivann1987 [24]

Answer:

8 cubic inches

Step-by-step explanation: I just know

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2 years ago

The graph below represents which systems of inequalities?

SashulF [63]

Answer:

Step-by-step explanation:

y > - x + 3

y ≤ 2x - 2

3 0

2 years ago