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Anettt [7]
3 years ago
13

What is the center and radius of this circumference? 5x²+5y²=20

Mathematics
1 answer:
elena-s [515]3 years ago
6 0
The equation of a circle with a center of (h,k) with a radius of "r" is
(x-h)^2 +(y-k)^2=r^2

looking at the given equation,
5x^2 +5y^2=20
divide 5 to both sides to get
x^2+y^2 =4

now compare that to the equatio of a circle shown above
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A leading bank is coming up with an investment that pays 8 percent interest compounded semiannually. What is the investment's ef
uranmaximum [27]
The effective rate is calculated in the following way:
r =  {(1 +  \frac{i}{n} )}^{n} - 1
where r is the effective annual rate, i the interest rate, and n the number of compounding periods per year (for example, 12 for monthly compounding).
our compounding period is 2 since the bank pays us semiannually(two times per year) and our interest rate is 8%
so lets plug in numbers:
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5 0
3 years ago
Help me pls! I have to get his done.<br>Factorise this!<br>2x^2+5x+3​
MArishka [77]

Hello there!☺

Answer:\boxed{(2x+3)(x+1)}

Explanation:

2x^2+5x+3 Factorized

To factor 2x^2+5x+3, we will have to do it by grouping.

2x^2+5x+3\\(2x+3)(x+1)

(2x+3)(x+1) is your answer.

Hope this helps!☺

8 0
3 years ago
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JulijaS [17]

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divide by 4

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6 0
3 years ago
Read 2 more answers
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