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3 years ago

How does multiplying each dimension of the isosceles trapezoid by a scale factor of 3 affect its perimeter?

Mathematics

1 answer:

mars1129 [50]3 years ago

8 0

Answer:

You would multiply the perimeter by three.

Step-by-step explanation:

Since you are tripling the trapezoid, you aslo are tripling each side by three as well, so you would multiply the perimeter by three

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The sum of two rational numbers is -5 if one of the number is -13/6 find the other number

Vladimir79 [104]

Answer:

$Let \ the \ number \ be = x\\sum \ of \ 2 \ rational \ numbers = -5\\\\x + \frac{-13}{6} = -5\\\\x - \frac{13}{6} = -5\\\\$

$x = -5 + \frac{13}{6} = \frac{-30 + 13}{6} = -\frac{17}{6}$

The other rational number = -17/6

6 0

3 years ago

Read 2 more answers

In a race between 18 people, how many ways can the top 5 finishers be arranged?

snow_lady [41]

Answer:

Step-by-step explanation:

This is permutation, since order matters. The formula for us is

₁₈P₅ = $\frac{18!}{(18-5)!}$ which simplifies to

₁₈P₅ = $\frac{18*17*16*15*14*13!}{13!}$

The factorial of 13 cancels out on the top and bottom leaving you with

₁₈P₅ = 18 × 17 × 16 × 15 × 14

which comes to 1,028,160 ways

Another way to look at it is: the first 5 people of 18 finish and the others you don't care about. Once the first place person is first, there are only 4 of the 18 left to finish in second place. Then there are only 3 left to finish in third place, etc. So if we use that reasoning, we don't even need to use the formula, we can just say

18 * 17 * 16 * 15 * 14 and those are the first 5 people of 18 to finish.

8 0

4 years ago

\Caden made a four-digit number with a 3 in the thousands place, a 1 in the ones place, a 7 in the tens place, and a 2 in the hu

Oksana_A [137]

Answer:

1723

Step-by-step explanation:

Ones place, tens place, hundreds place, thousands place

6 0

3 years ago

Read 2 more answers

An example of dependent events is drawing a blue marble out of one jar and then drawing a

Karo-lina-s [1.5K]

<u>Answer:</u>

A red marble out of the same jar, without replacing the first marble.

<u>Step-by-step explanation:</u>

Dependent events are those which involve a first event which affects the outcome of the second event.

This means that the probability of the second event changes because of the occurrence of the first event.

So if a blue marble is drawn out of one jar, then drawing a red marble out of the same jar, without replacing the first marble would be an example of dependent events.

7 0

3 years ago

What is 4 7/9 converted to a improper fraction

Semmy [17]

$4 \frac{7}{9} = \frac{36}{9} + \frac{7}{9}= \frac{43}{9}$

6 0

4 years ago

Read 2 more answers