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Sophie [7]
3 years ago
9

Can I get some help please?

Mathematics
1 answer:
Nina [5.8K]3 years ago
7 0
Put it on the line right after 5 y, because the square root of 29 is 5.3
plus i'm in K12 and took the test
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What is the arc length of the shaded region to the nearest tenth?
Maslowich

Answer:

285

Step-by-step explanation:

The total amount of degrees in a circle is 360, we know that the un-shaded portion of the circle is 90 degrees this means that the shaded portion has 270 degrees.

We also know that the area of the circle is \pi r^{2} but we are finding a portion of that, therefore we would need to multiply it by (\frac{270}{360} ). The radius is also given which is 11.

Area of the shaded region = (\frac{270}{360}) * \pi 11^{2} = 285

4 0
3 years ago
If pis inversely proportional to the square of q, and p is 23 when q is 4, determine p
Misha Larkins [42]

Answer:

p\ =\ 92

Step-by-step explanation:

Given

p\ \alpha\ \frac{1}{q^2}

p =23; q=4

Required

Find p, when q = 2

We have:

p\ \alpha\ \frac{1}{q^2}

Express as equation

p\ =\ \frac{k}{q^2}

Make k the subject

k =pq^2

When: p =23; q=4

k =23 * 4^2

k =368

When q = 2, we have:

p\ =\ \frac{k}{q^2}

p\ =\ \frac{368}{2^2}

p\ =\ \frac{368}{4}

p\ =\ 92

5 0
3 years ago
What is the derivative of e^(2x)
KIM [24]
Using the chain rule: The derivative of e^u is (e^u)(u').  Notice that e^u is rewritten exactly as is and then multiplied by the derivative of the exponent.  
Let u=2x. So u'=2  
So the derivative of e^u is e^(2x)*2 This can also be written as 2e^(2x).
5 0
3 years ago
One month Ivanna rented 7 movies and 9 video games for a total of $80. The next month she rented 5 movies and 3 video games for
ZanzabumX [31]

Answer:

each movie costs $2.75, each video game costs $6.75

Step-by-step explanation:

x = movies, y = video games

7x + 9y = 80

5x + 3y = 34

simplified to

x = 11/4 , y = 27/4

5 0
3 years ago
Help me please please please i need it
goldenfox [79]

Answer:

Step-by-step explanation:

Remark

If you take one radius whose length is r and start it at (0,0) on one end and (r,0) at the other, and sweep it around so the (r,0) hits every point on the circumference of the circle, the radius will go through 360°.

You have only gone through 120°. That's no problem. All you have to do now is add a fraction that adjusts for the 120°.

Formula

Arc length = fraction * 2*pi * r

2*pi * r is the circumference

Arc Length = 2* (120/360) * pi * r

Givens

r = 13

pi = 3.14

Solution

Arc Length = (120/360) * 2 * pi * 13

Arc Length = 27.21

Answer

Arc Length = 27.21

7 0
2 years ago
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