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Nesterboy [21]
2 years ago
14

HELLPP PLEASE OMGG I WILL GIVE YOU ALL MY POINTSS​

Mathematics
2 answers:
tamaranim1 [39]2 years ago
5 0

Answer:

You had $10 in the begging but got/found more.

Step-by-step explanation:

azamat2 years ago
3 0

Answer:

You had $30

Step-by-step explanation:

The answer is 30 because he said that he had 10 dollars and 20 which means he had 30 dollars the other money was given to him.

P.S Can I have brainliest? (I don't deserve brainliest the other guy got it first.)

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Use the equation xy= 12.6. Find the value of y when x=7
Marat540 [252]

Answer: y = 1.8

Step-by-step explanation:

xy = 12.6   If x is 7  but 7  in the equation for x

7y = 12.6   Divide both sides by 7

y = 1.8  

6 0
3 years ago
QRST is a rectangle. If RT = 5x – 5 and SQ = x + 11, find the value of x.
Hatshy [7]
5x - 5 = x + 11
5x = x + 16
4x = 16
x = 4
8 0
3 years ago
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PLEASE HELP!!!!!!!!!!!!!!!
vivado [14]
Hi there ! i think is number one. or a
4 0
3 years ago
Read 2 more answers
The volume of a hemisphere is 144 pi. Find the radius and total surface area.
sineoko [7]
Formula of the Volume of a hemisphere:
V = \frac{2}{3}\pir³
144\pi = \frac{2}{3}\pir³
Multiply by 3 to cancel fraction in the right side
144\pi × 3 = 2\pi r³
432 \pi = 2\pir³
Divide by 2\pi on either sides to isolate r³
\frac{432 \pi }{2 \pi } = \frac{2 \pi }{2 \pi }r³
2\pi and 2 \pi cancel out
216 = r³
Take cube root to find the radius
\sqrt[3]{216} = \sqrt[3]{r^3}
6 = r
Radius is 6 units

The formula of the surface area of a hemisphere is:
S.A = 2\pir² + \pir²
       = 2\pi(6)² + \pi(6)²
       =2\pi × 36 + 36\pi
       = 72\pi + 36\pi
       = 108\pi units²  (in terms of \pi)
       ≈ 339.12 units²

Surface area = 108\pi units
8 0
3 years ago
Find the point on the unit circle that corresponds to 5pi/6
natulia [17]
That is (-√3/2, 1/2)

4 0
3 years ago
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