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Alja [10]
3 years ago
5

Can you help with this I don’t know how to solve this.

Mathematics
1 answer:
Triss [41]3 years ago
7 0

Answer:

arclength = 13.44 ft

Step-by-step explanation:

We are given PS = 28 feet, which is the length of the diameter.

The formula for arc length is  2\pi r\frac{x}{360}, where x is the degrees.

So, we need to find the radius. We know that the radius is half of the diameter, so:

\frac{28}{2}=14 ft

We also need to find ∠TXS. Since we know the diameter is a line that crosses the center point of the circle, we also know that ∠PXT and ∠TXS add up to 180°. So:

∠PXT + ∠TXS = 180

125 + ∠TXS = 180

∠TXS = 180 - 125

∠TXS = 55°

Now, we can use the arc length formula:

arclength=2\pi r\frac{x}{360}

arclength=2\pi (14)\frac{55}{360}

arclength=13.43903524...

arclength = 13.44 ft

Check my work to make sure! Hope this helps!

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jace read 66 pages in 1 and 3/5 hours. if he continues reading at the same rate, how many pages will he read in an hour?
Ilia_Sergeevich [38]

Answer:

156

Step-by-step explanation:

1 3/5 of an hour is 96 you get that by addind 60 mins with 36(3/5) then just add 60 mins

i believe this is right if you have any questions let me know

6 0
3 years ago
Question 6 (Essay Worth 2 points)<br> Find all polar coordinates of point P = (2, 14°).
andrey2020 [161]

Answer:

(2,14°+360n) and (-2,14°+(2n+1)180°)

Step-by-step explanation:

You start out with (2, 14°)

The polar coordinate can be written as (r, 0) = (r, 0+2nπ) or

(r,0)=(-r,0+2(n=1)π), where n is any integer.

The polar coordinates point : p=(r,0) = (2,14°)

For the positive value of r,  the polar coordinate can be written as

p=(2,14°) = (2,14°+360n°), where n is any integer.

For the negative value of r ,  the polar coordinate can be written as

p=(2,14°) = (-2,14°+(2n+1)180°), where n is any integer.

All the polar coordinates of point P are(2,14°+360n) and (-2,14°+(2n+1)180°).

4 0
3 years ago
How do I simplify the following to "a+bi" form: (1+2i)^3
damaskus [11]

Answer:

Expand it.

(1+2i)^3 is equal to (1+2i)(1+2i)(1+2i).

Multiply everything out (being sure to multiply <em>every</em> term. (1+2i) * (1+2i) = 1+2i+2i+4i^2.

i is the square root of negative one, so i^2 is just -1. 1+2i+2i-4 is what you get from the first two, so now simplify that:

1-4 + 2i+2i = (-3+4i) and now multiply that by (1+2i):

(-3+4i) * (1+2i) = -3 - 6i +4i +8i^2.

Simplify again, and the answer is: -11-2i

Step-by-step explanation:

I hope this helps - really my only tip is don't spend time thinking about what i is, that just hurts your brain. Just remember that i^2 is equal to negative one, and treat it like regular multiplication and you will be fine.

7 0
2 years ago
a web music store offers two versions of a popular song. the size of the standard version is 2.9 megabytes (MB). the size of the
kenny6666 [7]

Answer:

280 downloads

Step-by-step explanation:

-let x denote the number of standard version downloads.

-Given that the high-quality version was downloaded four times as often as the standard version it is denoted as 4x

-This can then be expressed as:

x(2.9)+4x(4.8)=6188\\\\2.9x+19.2x=6188\\\\22.10x=6188\\\\x=280

Hence, the number of standard version downloads is 280

8 0
3 years ago
I need help please?!!!!!!
Alika [10]

Answer: The is B

Step-by-step explanation:

4 0
3 years ago
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