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STALIN [3.7K]
3 years ago
15

Arun bought a ball with a 20$ note and received 7$ change. Then, he bought a bat with three 10$ notes and received 8$ change. Al

together he had 25$ left. How much money did Arun have before he bought a ball and a bat?
Mathematics
2 answers:
pav-90 [236]3 years ago
7 0

Answer:

50$

Step-by-step explanation:

First money he had = 20$

Second = 10$ * 3 = 30$

Total money he had = 20$+30$ =

                               = 50$

Mark as Brainliest

liraira [26]3 years ago
6 0

=====50$

Step-by-step explanation:

First money he had = 20$

Second = 10$ * 3 = 30$

Total money he had = 20$+30$ =

                              = 50$

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What is a radius of a circle given by the equation x²-2x+8y-47=0
Zolol [24]
First, we are going to rewrite it as a parabola equation.
Rewrite.
8y=-x^2+2x+47
Divide by 8.
y=-\frac{x^2}{8}+\frac{x}{4}+\frac{47}{8}
Factor out coefficient.
y=-\frac{1}{8}\left(x^2-2x\right)+\frac{47}{8}
Then, we are going to convert x into square form.
y=-\frac{1}{8}\left(x^2-2x+1\right)+\frac{1}{8}\cdot \:1+\frac{47}{8}
Convert the whole expression into square form.
y=-\frac{1}{8}\left(x-1\right)^2+\frac{1}{8}\cdot \:1+\frac{47}{8}
Simplify.
y=-\frac{1}{8}\left(x-1\right)^2+6
Subtract 6 from both sides.
y-6=-\frac{1}{8}\left(x-1\right)^2
Divide by coefficient.
-8\left(y-6\right)=\left(x-1\right)^2
Rewrite in standard form.
4\left(-2\right)\left(y-6\right)=\left(x-1\right)^2

The radius of the circle will be -2. Also, no matter what the sign says, the radius has to always be positive. 
Have a nice day! :)
7 0
3 years ago
Read 2 more answers
What is question is asking
Pachacha [2.7K]
A) 72/910
b) 278/910
c) 57/910
d1) same as c) = 57/910
d2) 120/910
d3) 101/910
e) No, they DEPENDANT. 
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3 years ago
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kirza4 [7]
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Answer:

theta = 48.190

Step-by-step explanation:

Answer: θ = 48.2°

Step-by-step explanation:

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