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4 years ago

What's the answer to my problem with steps

Mathematics

2 answers:

Dmitry [639]4 years ago

7 0

The diameter is two times the radius
that means that the radius can be found by dividing nine by two
that equals 4.5

galben [10]4 years ago

4 0

The radius is half of the diameter, and half of 9 is 4.5. That is your answer. Hope this helps! Have a nice night.

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Find the simplified form of the expression.Give your an answer in scientific notation. (9x 10^5)(6 x 10^-7)

Tpy6a [65]

(9×10^5)(6×10^-7) = 9×6×10^5×10^-7
=54×10^(5-7)
=54×10^-2
=0,54

4 0

3 years ago

What is the approximate area of the circle that fits perfectly inside of the square? Use Pi = 3.14 and round to the nearest tent

Pani-rosa [81]

Answer:

$19.625\text{ cm}^2$

Step-by-step explanation:

GIVEN: A square with base $5\text{ cm}$ , a circle that perfectly fits inside square.

TO FIND: Approximate area of circle.

SOLUTION:

Consider the figure attached.

let the radius of circle be $x\text{ cm}$

radius of circle $=\frac{\text{length of base of square}}{2}$

$x=\frac{5}{2}\text{ cm}$

$x=2.5\text{ cm}$

Area of circle $=\pi(radius)^2$

$=3.14\times(2.5)^2$

$=19.625\text{ cm}^2$

Hence the area of circle that perfectly fits inside the square is $19.625\text{ cm}^2$

6 0

4 years ago

Read 2 more answers

Please Help!

svet-max [94.6K]

First car is x
second car is y
25x+30y=1550
x+y=55
Multiply the second equation by -25 for elimination method to cancel out x
-25x-25y=-1375
Add the two equations
5y=175
y=35
Plug this value into the second equation
x+35=55
x=20

Final answers:
First car=20 gallons
Second car=35 gallons

6 0

3 years ago

PLEASE HELP I WILL MARK AS BRAINLIEST!!! HELP PLEASE!!!!!

Natasha2012 [34]

Answer:

The answer would be x=7

4 0

3 years ago

A light private plane can fly 120 mph in still air. Flying against the wind, the plane can fly 320 miles in the same time it req

Debora [2.8K]

Alright, lets get started.

A light private plane can fly 120 mph in still air.