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2 years ago

If a circle has a diameter whose endpoints are (-5, 8) and (5, -8), then the circle has its center at the origin. True False

Mathematics

2 answers:

Gwar [14]2 years ago

5 0

Answer:true

Step-by-step explanation:

earnstyle [38]2 years ago

4 0

You add the two results together and then you divide it by two to get the mid point:
-5,8 + 5,-8 = 0,0
0,0 / 2 = 0,0

The mid point is the centre,
Hope this helps! :)

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melisa1 [442]

Answer:

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Step-by-step explanation:

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3 years ago

Which is greater: 0.75 or 0.69?

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Step-by-step explanation:

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3 years ago

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3(x+5)^2-12=0. What does x equal

STALIN [3.7K]

Answer:

x=−3 or x=−7

Step-by-step explanation:

Let's solve your equation step-by-step.

3(x+5)2−12=0

Step 1: Simplify both sides of the equation.

3x2+30x+63=0

Step 2: Factor left side of equation.

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2 years ago

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Arlecino [84]

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2 years ago

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. If the true percenta

tresset_1 [31]

Answer:

The probability is 0.057797

Step-by-step explanation:

Consider the provided information.

It is given that true percentage of voters who vote for the proposition is 63%,

Let p is probability of success.

According to the binomial distribution:

$P(x;p,n)=^nC_x(p)^x(1-p)^{(n-x)}$

Substitute n=7, p=0.63 and x=2 in the above formula.

$P(x;p,n)=^7C_2(0.63)^2(1-0.63)^{(7-2)}$

$P(x;p,n)=\frac{7!}{2!5!}(0.3969)(0.37)^{5}\\P(x;p,n)=21(0.3969)(0.37)^{5}\\P(x;p,n)=0.0577974947199\\P(x;p,n)\approx0.057797$

Hence, the probability is 0.057797

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3 years ago