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3 years ago

Solve the equation on the interval [0, 2π).

Mathematics

1 answer:

Elden [556K]3 years ago

5 0

Answer:

x = pi/2..only

Step-by-step explanation:

The equation states that...,

tan^2x.sin x = tan^2x

;we simplify the equation by dividing both sides by tan^2x...which then leaves our equation as,

; sin x = 1

; x = sin^-1 (1)

; Hence x = pi/2

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Can someone simplify 9^-2.5?

tresset_1 [31]

Answer: 1/243

Step-by-step explanation: To simplify the problem shown, our first step is to convert the decimal in the exponent, -2.5, to a fraction.

-2.5 is the same thing as -2 and 1/2 so we have 9^-2 and 1/2 and -2 and 1/2 is the same thing as -5/2 so we have 9^-5/2.

The rest of my work is attached in the image provided.

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3 years ago

Mary and four friends shared 1/4 gallon how much did eachfriend get equally

blsea [12.9K]

Answer:

0.05 or 1/20

Step-by-step explanation:

Since there are 5 people, you need to divide 1/4 by 5.

1/4 can also be written as 0.25.

0.25 / 5 = 0.05

So, each friend will get 0.05 or 1/20!

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3 years ago

Which expression is equivalent to (2x2 + 4x - 7)(x-3)?

Anika [276]

Answer:

Step-by-step explanation:

It isn't the most efficient way to solve the problem, but the other 3 are incorrect.

6 0

3 years ago

Are x = -4 and x = 6 solutions to 5x + 7 < 22?<br> TRUE OR FALSE

DochEvi [55]

Answer:

x=-4 is true, x=6 is not

Step-by-step explanation:

5x + 7 < 22

Plug in our X values

5(-4) + 7 < 22 ?

solve

-20 + 7 < 22

-13 < 22 ?

x=-4 is true.

Repeat steps from ^

5(6) + 7 < 22

30 + 7 < 22

37 < 22 ?

x=6 is not true.

Hope this helped

4 0

3 years ago

Read 2 more answers

Help please don’t have a lot of time

gogolik [260]

Just go on conversion calculator

7 0

3 years ago