2 years ago

What is the value of cos(x/2) if tan x=1/2 and x is in quadrant III

Mathematics

2 answers:

inysia [295]2 years ago

7 0

Answer:

Step-by-step explanation:

Alexus [3.1K]2 years ago

3 0

Answer:

The answer is A

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The mass of a teapot and 4 cups is 1,280 grams. The mass of the same teapot and 10 cups is 2,720 grams. Each cup has the same ma

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3 years ago

Match each problem (term) with its sum or difference (definition)

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D
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3 years ago

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Is this proportional?<br> y = 7x + 3

Irina-Kira [14]

Answer:

This equation is NOT proportional

Step-by-step explanation:

A proportional version of this equation would be Y=7x

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2 years ago

Find the equation of the line with m = 2 and passes through the point ( 4 , − 5 ) . Write your answer in standard form A x + B y

Rudiy27

Answer:

2x - y = 13

Step-by-step explanation:

To write the equation of a line use the formula $y - y_1 = m(x-x_1)$ .

Substitute m = 2 and (4,-5).

$y --5 = 2(x-4)\\y + 5 = 2(x - 4)\\y + 5 = 2x - 8\\y = 2x -13\\-2x + y = -13\\2x - y = 13$

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2 years ago

24 less than 4 times a number is 60. what is the number?

kondaur [170]

Hey there! :D

Make an algebraic expression.

Let the 'number' equal x.

4x-24= 60

Add 24 on both sides.

4x= 84

Divide both sides by 4.

x=21

The number is 21.

I hope this helps!
~kaikers

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2 years ago