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krek1111 [17]
3 years ago
13

What is the surface area?

Mathematics
1 answer:
loris [4]3 years ago
7 0
I believe it is 1250
Explanation: Area of a triangle=1/2bh-1/2•20•30
Area of square=bh-25•25
Add your answers together then you get 1250
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8.7 billion in scientific notation
lisov135 [29]
<span><span>1.       </span>Give the scientific notation of 8.7 billion.
8.7 billion = 8 700 000 000
Scientific notation is the process of multiplying the given number by 10 to the power of n.
Since  billion has 9 zeros that’s equals to 10^9
=> 8.7 x 10^9
let’s try solving this
=> 8.7 x (10 * 10 * 10 * 10 * 10 * 10 * 10 * 10 * 10)
=> 8.7 x 1 000 000 000
=> 8 700 000 000
Thus, our scientific notation of 8.7 billion is 8.7 x 10^9</span>



3 0
3 years ago
Read 2 more answers
What is 1/2x+13=20? What is x??
guapka [62]
X = 14
1/2 of 14 = 7
7 + 13 = 20

7 0
3 years ago
What is the side length, s, of the square? Enter your answer in the box. Blue sqaure with area of 81m² m
Ne4ueva [31]

Answer: 9m

Step-by-step explanation:

7 0
3 years ago
Your sister is considering two different shapes for her garden. 1 is a square with side lengths of 3.5 M and the other is a circ
Likurg_2 [28]

Answer:

12.25 M^2(square) 12.56 M^2(circle)

Step-by-step explanation:

side of square= 3.5 M

area of square garden= side*side

=3.5*3.5

=12.25 M^2

Diameter of circle=4 M

Radius of circle=Diameter/2

=4/2

=2

Area of circle garden= 2(pi)r^2(where r is radius)

=3.14*2*2

=12.56 M^2

6 0
3 years ago
Read 2 more answers
Simplify. left parenthesis negative 8 right parenthesis squared
DerKrebs [107]

Answer:

The solution of (-8)^{2} is 64.

Step-by-step explanation:

In Mathematics when two negative numbers are multiplied the result is a positive number, i.e. -a\times-b=ab.

The expression to be solved is: (-8)^{2}

Solve the above expression as follows:

(-8)^{2}=(-8)\times (-8)=64

Thus, the solution of (-8)^{2} is 64.

6 0
3 years ago
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