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3 years ago

14

A skateboard is originally priced at $130. The online retailer gives a discount and the skateboard is now priced at $78. Enter t

he percentage discount for the cost of the skateboard. Pls answer

1 answer:

Zinaida [17]3 years ago

3 0

Answer:40%

Step-by-step explanation:

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By which rule are these triangles congruent?<br><br> A) AAS<br> B) ASA<br> C) SAS <br> D) SSS

Greeley [361]

Answer:

C) SAS

Step-by-step explanation:

» These two triangles have same side and same angle

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3 years ago

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Stiind ca triunghiurile sunt asemenea si c= 5 calculati lungimea laturilor indicate

slava [35]

Answer:

$a=8\\b=10\\c=5$

Step-by-step explanation:

In the given image, you can observe we have two right triangles.

Also, we know by given that those triangles are similar, which means their sides are proportional and their angles are congruent.

If the triangles are similar, we can define the following proportion between sides.

$\frac{4}{a} =\frac{3}{6}\\ 24=3a\\a=\frac{24}{3}\\ a=8$

Now we use the Pythagorean's Theorem to find each hypothenuse.

$c^{2} =4^{2} +3^{2}\\ c=\sqrt{16+9}=\sqrt{25} \\ c=5$

$b^{2} =8^{2} +6^{2}\\ b=\sqrt{64+36}=\sqrt{100}\\ b=10$

Therefore, the missing sides are

$a=8\\b=10\\c=5$

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3 years ago

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sam rolls 3 standard fair dice. that probability that the three numbers rolled on the dice are the sides of a triangle is , wher

mart [117]

The required probability for three numbers rolled on the dice are the sides of a triangle is 31/36.

<h3>What is probability?</h3>

The area of mathematics known as probability studies potential outcomes of events as well as their relative probabilities and distributions. It is based on the likelihood that something will occur. The justification for probability serves as the main foundation for theoretical probability.

Here,

When three dice are rolled, there are 63=216 possible outcomes, or triplets (x, y, z).

Once more, in a triangle, any two sides added together are larger than the third side, or (x+y)>z.

As a result, 186 outcomes or triplets are possible and satisfy this property.

Hence, the required probability is 186/216=31/36.

The required probability is 31/36 for three dice rolls to produce triangle sides.

To know more about probability,

brainly.com/question/11234923?referrer=searchResults

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1 year ago

What is the simplified form of each expression?<br>3-3: (-2)

frez [133]

Answer:

9

Step-by-step explanation:

multiply -3 and -2 = 6

6 + 3 = 9

so the answer will be 9

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3 years ago

Justine answered 68 questions correctly on a 80-question test.

cestrela7 [59]

For A the answer is 85% correct. Then 15% incorrect. I got the number correct by taking 68 and dividing by 80. To get the number incorrect I took the 15 other questions (80-68) and did 12 divided by 80 to get the 15% incorrect.

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3 years ago