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Sonbull [250]
2 years ago
7

Please help with this math problem! The intersection of GK and HL is point P. Which triangle must be an isosceles triangle? *loo

k at image*

Mathematics
1 answer:
Whitepunk [10]2 years ago
5 0

None of the triangles listed has two equal base angles or two equal side lengths, therefore: D. No triangle is isosceles.

<h3>Properties of an Isosceles Triangle</h3>
  • An isosceles triangle has two base angles having equal angle measure.
  • The side lengths that are opposite each of the equal base angles are also congruent to each other.

Thus, none of the triangles listed has two equal base angles or two equal side lengths, therefore: D. No triangle is isosceles.

Learn more about isosceles triangle on:

brainly.com/question/11884412

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use the elimination method to solve the system of equations. choose the correct ordered pair x+y=3 y=8
klasskru [66]

Answer:

(-5, 8)

Step-by-step explanation:

Step 1: Multiply 2nd equation by -1

x + y = 3

-y = -8

Step 2: Elimination

x = -5

Step 3: Find <em>y</em>

y = 8

7 0
3 years ago
A mother shares a box of 20 chocolates in the same ratio as her children's ages . Calculate how many chocolates each child gets
Anni [7]
So a box of 20 chocolates is divided between a group of people based on age So the ratio for Sibusiso, Dorris, and Freddy is 2:3:5 Add these together, and you get 10 So to find how much each person gets, divide total amount of chocolates by total age So (20÷10) = 2 So multiply each age term by 2 and you have your answer (4:6:10) So Sibusiso gets 4, Dorris gets 6 and Freddy gets 10
8 0
3 years ago
The diameter of a round coin is 27.9 millimeters. What is the approximate area of one face of the coin?
Paladinen [302]

Answers is C

Step by step solution is attached

7 0
3 years ago
10 black balls and 5 white balls are placed in an urn. Two balls are then drawn in succession. What is the probability that the
Alex787 [66]

Answer:

The probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball is \frac{1}{3} or 0.3333

Step-by-step explanation:

Probability is the greater or lesser possibility that a certain event will occur. In other words, the probability establishes a relationship between the number of favorable events and the total number of possible events. Then, the probability of any event A is defined as the ratio between the number of favorable cases (number of cases in which event A may or may not occur) and the total number of possible cases. This is called Laplace's Law:

P(A)\frac{number of favorable cases of A}{total number of possible cases}

Each of the results obtained when conducting an experiment is called an elementary event. The set of all elementary events obtained is called the sample space, so that every subset of the sample space is an event.

The total number of possible cases is 15 (10 black balls added to the 5 white balls).

As each extraction is without replacement, the events are dependent. For that, the dependent probabilities are defined first

Two events are dependent on each other when the fact that one of them is verified influences the probability of the other being verified.  In other words, the probability of A happening is affected because B has happened or not.

The probability of two events A and B of two successive simple experiments in a dependent compound experiment is:

A and B are dependent ⇔ P (A ∩ B) = P (A) · P (B / A)

                                              P (A ∩ B) = P (B) · P (B / A)

As the color of the first ball that is extracted is unknown, there are two cases: that the ball is black or that the ball is white.

<em> It will be assumed first that the first ball drawn is black</em>. Then the probability of this happening is \frac{10}{15} since the number of black balls in the urn is 10 and the total number of cases is 15. It is now known that the second ball extracted will be white. Then the number of favorable cases will be 5 (number of white balls inside the ballot urn), but now the number of total cases is 14, because a ball was previously removed that was not replaced.  So the probability of this happening is \frac{5}{14}

So the probability that the first ball is black and the second white is:

<em>\frac{10}{15} *\frac{5}{14} =\frac{5}{21}</em>

<em>It will now be assumed first that the first ball that is drawn is white.</em> Then the probability of this happening is \frac{5}{15} since the number of white balls in the urn is 5 and the total number of cases is 15. And it is known that the second ball drawn will be white. Then, the number of favorable cases will be 4 (number of white balls inside the urn, because when removing a white ball and not replacing it, its quantity will decrease), and the total number of cases is 14, same as in the previous case  So, the probability of this happening is  \frac{4}{14}

So the probability that the first ball is white and the second white is:

<em>\frac{5}{15} *\frac{4}{14} =\frac{2}{21}</em>

If A and B are two incompatible events, that is, they cannot occur at the same time, the probability of occurrence A or of occurrence B will be the sum of the probabilities of each event occurring separately.

These are events are incompatible, since I cannot, in a first extraction, extract a black and white ball at the same time. So:

<em>\frac{5}{21} +\frac{2}{21} =\frac{7}{21}=\frac{1}{3} =0.3333</em>

Finally, <u><em>the probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball is \frac{1}{3} or 0.3333</em></u>

3 0
3 years ago
What are the x and y intercepts of the graphed functionality ?
a_sh-v [17]

Answer:

Step-by-step explanation:

the x intercepts are -1 and 1 (where y = 0)

the y intercept is 1 (where x = 0)

5 0
3 years ago
Read 2 more answers
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