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Aleks04 [339]
2 years ago
13

Need help understanding this problem.​

Mathematics
1 answer:
harina [27]2 years ago
5 0
Basically it’s r=c/2pi meaning it’d be r=62/2(3.14) which would give you r=9.87
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A 6 square units<br> B 8 square units<br> C 10 square units<br> D 16 square units
Dahasolnce [82]
The answer would be D which is 16 square units
5 0
2 years ago
13. A bag contains 8 balls of which 2 are red and 6 are white. A ball is selected and not replaced. A
umka21 [38]

Answer:

The second ball would most likely be red and there are 5 red balls in the bag. And if you replaced the ball it would most likely be the same ball

Step-by-step explanation:

5 0
3 years ago
If 2a+ 2/a =4, what is the value of 2a^2− 2/a^2 ?
aliina [53]

Answer:

0

Step-by-step explanation:

2a+ 2/a =4

Multiply each side by a to clear the fraction

a( 2a+ 2/a) =4*a

Distribute

2a^2 +2 = 4a

Subtract 4a from each side

2a^2 -4a +2 = 4a-4a

2a^2 -4a +2 =0

Divide by 2

2/2 a^2 -4a/2 +2/2 =0/2

a^2 -2a +1=0

Factor

(a-1) (a-1) =0

Using the zero product property

a=1

2a^2 -2/a^2

2(1)^2 -2/1^2

2-2

0

5 0
3 years ago
Factor complete −2x2 + 10x.
mezya [45]

The factors of the quadratic equation is (x + 1) and (x - 6)

Given,

The quadratic equation; -2x² + 10x + 12

We have to find the factors of this equation using quadratic formula;-

Quadratic formula;- \frac{-b(+-)\sqrt{b^{2} -4ac} }{2a}

Here,

a = -2, b = 10 and c = 12

Now,

\frac{-b(+-)\sqrt{b^{2} -4ac} }{2a} = \frac{-10(+-)\sqrt{10^{2} -4 . -2. 12} }{2.-2} = \frac{-10(+-)\sqrt{100 +96} }{-4} = (-10±14) ÷ -4

Solve for,

- 10 + 14 / -4 = -4/4 = -1

That is, (x + 1)

Solve for,

- 10 - 14 / -4 = -24/-4 = 6

That is,  (x - 6)

Therefore, the factors for the given quadratic equation is (x + 1) and (x - 6)

Learn more about quadratic formula here;

brainly.com/question/9300679

#SPJ1

6 0
1 year ago
PLS HELP ME I ONLY HAVE 5 MINUTES PLS
Viefleur [7K]

Answer: 71 ft

i hope its the right answeer, do well

3 0
2 years ago
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