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3 years ago

24. The perimeter of a rectangle is 44 inches. If the length of the rectangle is 13

Mathematics

2 answers:

Delvig [45]3 years ago

8 0

Answer:

D. 2(x + 13) = 44

Step-by-step explanation:

Hope this helps!

Ronch [10]3 years ago

6 0

Answer:

Step-by-step explanation:

yeah-ya......... right?

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Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles.

Veseljchak [2.6K]

This is the same question as 17042785 (the question number in the site URL), with the exception of using the other identity,

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

We have

$2\sin^4(2x)=2(\sin^2(2x))^2=2\left(\dfrac{1-\cos(4x)}2\right)^2=\dfrac12(1-\cos(4x))^2$

Expand the binomial:

$2\sin^4(2x)=\dfrac12(1-2\cos(4x)+\cos^2(4x))$

Using the identity in the previous question,

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

we get

$\cos^2(4x)=\dfrac{1+\cos(8x)}2$

So,

$2\sin^4(2x)=\dfrac12\left(1-2\cos(4x)+\dfrac{1+\cos(8x)}2\right)$

$2\sin^4(2x)=\dfrac14\left(3-4\cos(4x)+\cos(8x)\right)$

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3 years ago

What is the volume of the cylinder?

Vesna [10]

The answer is a.
The formula for cylinder volume is (pi)(r^2)(h).
To find the volume of this cylinder, it is (pi)(2^2)(5)
That is (pi)(20)
or 20pi
The answer is a.

3 0

3 years ago

Read 2 more answers

at a charity basketball game, 450 tickets were sold to students at a school. The remaining x tickets were sold to the public. Th

VladimirAG [237]

Answer:

The number of tickets sold to the public was 375

Step-by-step explanation:

<u><em>The complete question is</em></u>

At a charity basketball game, 450 tickets were sold to students at a school. The remaining x tickets were sold to the public. The students paid $15 and public $25. When all the tickets were sold, $10,500 was collected. How many tickets were sold to the public?

Let

x ----> number of tickets sold to the students

y ----> number of tickets sold to the public

we know that

$x+y=450$ ----> equation A

$15x+25y=10,500$ ----> equation B

Solve the system by graphing

The solution is the intersection point both graphs

using a graphing tool

The solution is the point (75,375)

see the attached figure

therefore

The number of tickets sold to the public was 375

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4 years ago

Plz help this one is the last one of the day plz help

Juliette [100K]

We know 20% is 15
and now we find 80%

since 20% x 4 = 80%, we can multiply 15 by 4 to get 80% of 75

15 x 4 = 60

80% of 75 = 60

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3 years ago

Write a set of four ordered pairs that represents a linear funtion. then give the function rule

Yuri [45]

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Four ordered pairs that could represent this linear function are:

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4 years ago