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Lynna [10]
3 years ago
5

Answer pls is mathematically is due today in 1 m

Mathematics
1 answer:
Lena [83]3 years ago
5 0

Answer:

200.96 units^2 or 64π units^2

Step-by-step explanation:

8^2(3.14) = 200.96 units^2 or 64π units^2

(multiplied by 2 to change the radius to diameter)

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Y=1/2x +5<br> Y=-3/2x-7<br> Find x and y
gayaneshka [121]
I'm going to use the substitution method. 

If y = - 3/2 - 7, then:

1/2x + 5 = - 3/2x - 7

Combine like terms: 

4/2x = - 12. Mutiply both sides by 2/4 to get x = -12 (2/4)

Simplify to get:

x = - 6.

Plug - 6 back in for x in either equation.

Y = 1/2( - 6) + 5 which becomes Y = - 3 + 5.

X = - 6, Y = 2





8 0
3 years ago
Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution se
yaroslaw [1]
2/5 * (n - 1) < 3/5 * (n + 1)
2/5 * n - 2/5 < 3/5 * n + 3/5
- 2/5 - 3/5 < 3/5 * n - 2/5 * n
- 5/5 < 1/5 * n
- 1 < 1/5 * n      /*5
- 5 < n
n > - 5

n = x

The correct result would be B) <span>x > - 5.</span>
7 0
3 years ago
Read 2 more answers
The power of ten representation of four thousandths
m_a_m_a [10]

Answer:

if its thousandths, its 4 x 10^-1. If you mean 4000, its 4 x 10^3

Step-by-step explanation:

5 0
2 years ago
Which property justifies the statement if y = 7, then 7 = y?
poizon [28]
It is the symmetric property
7 0
3 years ago
The measure of one angle is three times the measure of its complement
kumpel [21]
Complementary angles add up to 90.
First angle:x
Second angle:3x
x+3x=90
4x=90
x=22.5
The first angle is 22.5 degrees and the complement is 67.5
3 0
3 years ago
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