2 years ago

I’m soooo stuck on thisss

Mathematics

2 answers:

Brilliant_brown [7]2 years ago

8 0

Sam saved $40. 75% of 160 is 120.

user100 [1]2 years ago

3 0

Answer:

The price would be 120 because 160 - 40 equals 120. 25 percent would represent 40. Hope this helps!

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the music booster sell 322 music buttons and raise $483 for the music departemen how much does each button cost

nirvana33 [79]

<span>483 / 322 = 1.5. $1.5 is the cost for one button. Hope this helps. :)</span>

6 0

2 years ago

Read 2 more answers

Prove that sinxtanx=1/cosx - cosx

maks197457 [2]

Answer:

See below

Step-by-step explanation:

We want to prove that

$\sin(x)\tan(x) = \dfrac{1}{\cos(x)} - \cos(x), \forall x \in\mathbb{R}$

Taking the RHS, note

$\dfrac{1}{\cos(x)} - \cos(x) = \dfrac{1}{\cos(x)} - \dfrac{\cos(x) \cos(x)}{\cos(x)} = \dfrac{1-\cos^2(x)}{\cos(x)}$

Remember that

$\sin^2(x) + \cos^2(x) =1 \implies 1- \cos^2(x) =\sin^2(x)$

Therefore,

$\dfrac{1-\cos^2(x)}{\cos(x)} = \dfrac{\sin^2(x)}{\cos(x)} = \dfrac{\sin(x)\sin(x)}{\cos(x)}$

Once

$\dfrac{\sin(x)}{\cos(x)} = \tan(x)$

Then,

$\dfrac{\sin(x)\sin(x)}{\cos(x)} = \sin(x)\tan(x)$

Hence, it is proved

5 0

2 years ago

Evaluate the expression 5t + 2m for m = 7 and t = 2.

pantera1 [17]

Answer:

<h3>The answer is 24</h3>

Step-by-step explanation:

5t + 2m

m = 7 t = 2

Substitute the above values into the expression

That's

5(2) + 2(7)

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Hope this helps you

5 0

3 years ago

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Mamont248 [21]

Answer:

when x is:

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Step-by-step explanation:

Substitute each value of x to obtain respective y values

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2 years ago

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zysi [14]

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Step-by-step explanation:

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3 years ago