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soldi70 [24.7K]
3 years ago
5

What is the radius of a circle given by the equation x2 + y2 – 2x + 8y – 47= 0?

Mathematics
2 answers:
miv72 [106K]3 years ago
4 0

Answer:

8

Step-by-step explanation:

<h2 />
Natasha2012 [34]3 years ago
3 0

Answer:

Yes, the answer is eight!

Step-by-step explanation:

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Jared and Zach are practicing their free throws. Jared attempted x shots and made 75% of them. Zach attempted 10 more shots than
Alexandra [31]

The equation that represents the situation will be (0.75x) + 0.8(x + 10) = 101

<h3>How to compute the equation?</h3>

From the information, Jared attempted x shots and made 75% of them. Zach attempted 10 more shots than Jared did and made 80% of them.

Therefore the equation that represents the situation will be:

= (0.75 × x) + 0.8(x + 10) = 101

= 0.75x + 0.8(x + 10) = 101.

Therefore, the equation that represents the situation will be (0.75x) + 0.8(x + 10) = 101

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4 0
1 year ago
2r = 72 please help me
noname [10]

you divide 72 by 2 to get r by itself and get 36


so r=36

6 0
3 years ago
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Evaluate:<br> 12.16 x .13 =
nordsb [41]

Answer:

1.5808

Step-by-step explanation:

rounded

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1.58

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1.6

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5 0
3 years ago
Plz help with the math worth 21 points
irinina [24]

Answer:

As there is one math problem over there.

Lets see the question first:

It says that "A hair dryer is rated 1200\ W,if you use the dryer for 0.25\ h.How much electric energy do you use ?"

Final answer = Electic energy =0.3\ kW\ h

Step-by-step explanation:

Electrical Energy E=Power \times time.

The total amount of electrical energy used depends on the total power used by the electrical device and the total time they are used for.

So we have been given the power of the hair dryer =1200\ W =\frac{1200}{1000}=1.2\ kW

Now the time it has been use for =0.25\ hrs

To calculate electric energy we will multiply both the terms.

Electric energy =0.12 \times 0.25 =0.3\ kW\ h

So electric energy used for the hairdryer is =0.3\ kW\ h

7 0
3 years ago
If 3/7m= 7/3 n, then what is the value of m/n?
prisoha [69]

3/7m = 7/3n

9n = 49m

m/n = 9/49

5 0
3 years ago
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