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3 years ago

How can you prove a triangle is isosceles? (4 points)

Mathematics

2 answers:

irina [24]3 years ago

7 0

I think it is"A" hope it help

alexgriva [62]3 years ago

5 0

Answer:

To prove a triangle is isosceles, it can be used the distance formula to see if at least two sides are congruent.

Step-by-step explanation:

An isosceles triangle is a triangle in which two sides are equal in length. The sides are called equal sides, and the last side unequal to them is called the base. By definition, every regular triangle is also isosceles, but the converse is not true.

If a triangle has two equal sides, then these sides are called the lateral sides, and the third side is called the base. The angle formed by the sides is called the vertex angle, and the angles, one of the sides of which is the base, are called the corners at the base.

A triangle with two equal sides has one axis of symmetry, which passes through the vertex angle and the middle of the base. This axis of symmetry coincides with the bisector of the vertex angle, the median drawn to the base, the height drawn from the vertex corner and the middle perpendicular.

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3 years ago

Which shape does not have a rotational symmetry?

guapka [62]

Answer:

Trapezoid

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3 years ago

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6000 for 6 years at 81/2 % compounded daily will grow to a) $9.990.02 b)9.060.00 c) 9788.81 d)9991.15

Flura [38]

Answer:

d)9991.15

Step-by-step explanation:

We have a sum of money ($6000) compounded daily at an annual interest rate of 8.5% for 6 years.

If the interest is compound daily, and we take a m=365 days a year (or 365 subperiods m), the daily nominal interest rate is:

$i_d=\dfrac{i}{m}=\dfrac{0.085}{365}=0.000232877$

Then, we can express the final valueo of $6000 compounded daily at an annual interest rate of 8.5% for 6 years as:

$FV=IV\left(1+\dfrac{i}{m}\right)^{n\cdot m}\\\\\\FV=6000(1+0.000232877)^{6\cdot 365}\\\\FV=6000(1.000232877)^{2190}\\\\FV=6000\cdot1.665192322\\\\FV\approx9991.15$

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3 years ago

In a word processing document or on a separate piece of paper, use the guide to construct a two column proof proving that triang

luda_lava [24]

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2 years ago

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In a batch of 8,000 clock radios 7% are defective. A sample of 1313 clock radios is randomly selected without replacement from

PIT_PIT [208]

Answer: Probability that the entire batch will be rejected is 0.611.

Step-by-step explanation:

Since we have given that

Number of clock radios in a batch = 8000

Probability of defective clock radio = 7%

According to question, we have mentioned that A sample of 13 clock radios is randomly selected without replacement from the 8,000 and tested.

We will use "Binomial distribution":

here, n = 13 and

p (probability of success) = 7% = 0.07

so, we need to find that

P(the entire batch will be rejected) = P(at least one of those test is defected)

So, it becomes,

P(at least one of those tested is defective) = 1 - P(none are defective)

So, P(none are defective ) is given by

$(1-0.07)^{13}\\\\=0.93^{13}\\\\=0.389$

So, P(at least one of those tested is defective) = 1 - P(none are defective)

= 1 - 0.389

= 0.611

Hence, Probability that the entire batch will be rejected is 0.611.

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3 years ago