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3 years ago

Which of the following statements about trapezoids is true?

Mathematics

2 answers:

ehidna [41]3 years ago

5 0

Answer:

D. One pair of opposite sides is parallel

Explanation:

bc if you look at the other choices they arent true.. if yalls dont know what a trapezoid looks like, i think you should go back to elementary :) I still dont know my lefts and rights

maw [93]3 years ago

4 0

D one pair of opposite sides is parallel is the answer because trapezoids are another pair angled towards each and if you follow long enough they will intersect. A couldn't be true because if ALL the angles are corresponding angles you would need two pairs of parallel lines. B isn't correct because the sides would need to be parallel for that too. C well you've already proved they don't have two pairs of parallel lines.

Hope this helps :)

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A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe

-Dominant- [34]

Answer: 0.0031

Step-by-step explanation:

Binomial distribution formula :-

$P(x)=^nC_xp^x(1-p)^{n-x}$ , where P(x) is the probability of x successes in the n independent trials of the experiment and p is the probability of success.

Given : A binomial probability experiment is conducted with the given parameters.

$n=9,\ p=0.8,\ x\leq3$

Now, $P(x\leq3)=P(3)+P(2)+P(1)+P(0)$

$=^9C_3(0.8)^3(1-0.8)^{9-3}+^9C_2(0.8)^2(1-0.8)^{9-2}+^9C_1(0.8)^1(1-0.8)^{9-1}+^9C_0(0.8)^0(1-0.8)^9\\\\=\dfrac{9!}{3!6!}(0.8)^3(0.2)^6+\dfrac{9!}{2!7!}(0.8)^2(0.2)^7+\dfrac{9!}{1!8!}(0.8)(0.2)^8+\dfrac{9!}{0!9!}(0.2)^9=0.003066368\approx0.0031$

Hence, $P(x\leq3)=0.0031$

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3 years ago

Classify the four angles of the quadrilateral.

makkiz [27]

Answer:

<A= right

<B= acute

<C= obtuse

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Step-by-step explanation:

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3 years ago

What is the symbol for a segment bisector

lutik1710 [3]

This is the symbol for a segment bisector in geometry

Hope this helps!! :)

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Please solve in the picture!

iris [78.8K]

Answer:

Step-by-step explanation:

As we know that from a theorem,

A greater angle of a triangle is opposite a greater side. Let ABC be a triangle in which angle ABC is greater than angle BCA; then side AC is also greater than side AB. For if it is not greater, then AC is either equal to AB or less.

As we have angle A =120 so it means the other 2 angles will be less than angle A , hence the opposite side to angle A is BC ,

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kondaur [170]

The answer is C. Use the quadratic formula to solve it and you should be just fine!

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