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BlackZzzverrR [31]
3 years ago
12

Find all square roots of 8100?

Mathematics
2 answers:
Nikitich [7]3 years ago
8 0
The Square Root Of 8100 Is 90. That Will Be The Only Square Root Because The Square Root Of 90 Is A Decimal So You Would Stop There.
ser-zykov [4K]3 years ago
7 0
The sqaure root of 8100 is 90
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Circle P has a circumference of approximately 75 inches.
photoshop1234 [79]

Answer:

12in is you answer

Step-by-step explanation:

The formula to find circumference is C=2\pi r

so to rearrange to solve for radius that will be r=\frac{C}{2\pi }

=\frac{75}{2\pi }

=11.94in

5 0
3 years ago
Two trains travel at right angles to each other after leaving the same train station at the same time. Two hours later they are
Alex787 [66]

Answer:

15 miles per hour is the speed of the slower train.

Step-by-step explanation:

As given in the figure attached,

Let the speed of train 1 is v and train 2 is u.

Therefore, distance traveled in 2 hours by train 1 will be = 2v miles

and distance traveled by train 2 will be = 2u miles

Now we can see in the figure a right angle triangle is formed by the two trains.

AB² + BC² = AC²

(2v)² + (2u)²= (65.30)²

4v² + 4u² = 4264.09

Now we divide this equation by 4

v² + u² = 1066.02

If speed of the slower train is v miles per hour then as per statement of the question.

u = v - 14

v = u + 14

By putting the value of v in the equation

(u + 14)² + u² = 1066

u² + 196 + 28u + u² = 1066

2u² + 28u + 196 = 1066

2u² + 28u + 196 - 1066 = 0

2u² + 28u - 870 = 0

By diving this equation by 2

u² + 14u - 435 = 0

u² + 29u - 15u - 435 = 0

u(u + 29) - 15(u + 29) = 0

(u + 29)(u - 15) = 0

u = -29, 15

Since speed can not be with negative notation so u = 15 miles per hour will be the speed.

Therefore, 15 miles per hour is the speed of the slower train.

5 0
3 years ago
Weights of newborn babies are normally distributed with a mean of 7.452 pounds and
patriot [66]

Answer:

21

Step-by-step explanation:

8 0
3 years ago
(x – 2) = –14(x – 8)
muminat

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

x = 38/5

Decimal Form:

x = 7.6

Mixed Number Form:

x = 7/3/5

7 0
2 years ago
SOMEONE PLZ HELP ME DO THIS???
Lelu [443]
First do 48.50-21 then divide that amount by 5. Then that’s how much each pair of socks cost so
48.50-21=27.50
27.50%5=$5.50 so rx=$5.50
7 0
3 years ago
Read 2 more answers
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