3 years ago

Helllppp!! i need all of the answers pleaseee

Mathematics

1 answer:

IgorC [24]3 years ago

4 0

Hey just take the radius divide by 2 then multiply by pi (3.1415..)

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All questions are about this system of equations:

sertanlavr [38]

If we are eliminating x, we would multiply the 2nd equation by -5

5x + 18y = 23
x + 3y = 2....multiply by -5
-----------------
5x + 18y = 23
-5x - 15y = - 10 (result of multiplying by -5)
----------------add
0 + 3y = 13.....bye-bye x :)

6 0

3 years ago

What is the value of this expression? 7d squared+10 d=3

elixir [45]

The answer is 451
- hope this helped-

4 0

4 years ago

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8. What is the radius of a circle when the

Bezzdna [24]

Answer:

radius = circumference ÷ 2× po

Step-by-step explanation:

the radius is 2.55 but it's not in ur options

7 0

3 years ago

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The options for the first blank are 45, 240, 270, and 315

Schach [20]

Answer:

The solutions are 270° and 450°.

Step-by-step explanation:

Given:

$cos\frac{x}{2} =\frac{\sqrt{2} }{2}$ .

So, the second and third quadrant angle to be calculated.

$cos\frac{x}{2}=135$

$=x=270$ °.

And, $cos\frac{x}{2}=225$

$=x=450$ °

Therefore, the solutions are 270° and 450°.

5 0

3 years ago

Write as a fraction 56:120

Fudgin [204]

56:120 = 56/120 = 7/15

7 0

3 years ago

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