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Andrew [12]
2 years ago
14

A car is traveling at 25 miles per hour on a residential street. About how many feet does it travel per second?

Mathematics
1 answer:
Oksanka [162]2 years ago
8 0

Answer:

Abt 37

Step-by-step explanation:

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Find all solutions of the equation in the interval [0, 2pi).
natali 33 [55]

Answer:

Step-by-step explanation:

Begin by squaring both sides to get rid of the radical. Doing that gives you:

sin^2x=1-cosx

Now use the Pythagorean identity that says

sin^2x =1-cos^2x and make the replacement:

1-cos^2x=1-cosx. Now move everything over to one side of the equals sign and set it equal to 0 so you can factor:

1-cos^2x+cosx-1=0 and then simplify to

cosx-cos^2x=0

Factor out the common cos(x) to get

cosx(1-cosx)=0 and there you have your 2 trig equations:

cos(x) = 0 and 1 - cos(x) = 0

The first one is easy enough to solve. Look on the unit circle and see where, one time around, where the cos of an angle is equal to 0. That occurs at

x=\frac{\pi }{2},\frac{3\pi}{2}

The second equation simplifies to

cos(x) = 1

Again, look to the unit circle and find where the cos of an angle is equal to 1. That occurs at π only.

So, in the end, your 3 solutions are

x=\frac{\pi}{2},\pi,\frac{3\pi}{2}

8 0
3 years ago
Find the area please, round to the nearest tenth if necessary. If you’re correct I’ll brainliest you
Tanzania [10]

Answer:

21

Step-by-step explanation:

(5x5) the big square - (2x2) the small square

25-4=21

8 0
3 years ago
Read 2 more answers
In an election, Mr. Jones received 70% of the 1,500 votes cast. How many votes did Mr. Jones receive?
Len [333]
Given situation: Mr. jones received 70% of the 1500 vote casts in an election Question and solution => How many votes did Mr Jones received: => 1 500 is the total number of voters and 70% of it voted Mr. Jones. SO let’s start solving to get the number of voters who voted him. => 70% = 70 / 100 = .70 => 1 500 * .70 => 1 050 , the number of voters who voted him in an election.
3 0
3 years ago
Read 2 more answers
I forgot how to do it help lol
ASHA 777 [7]
K, (-3,-7)
J, (-3,-2)
L, (-6,-2)
remember the (x,y) rule!
8 0
2 years ago
Evaluate g(1+a)<br> g(x) = 1 + 5x - x2
kramer
Use the website math papa it’ll give you the answer for that
6 0
3 years ago
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