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2 years ago

The side length of an equilateral triangle is 4x – 5. Which expression represents

Mathematics

1 answer:

horsena [70]2 years ago

8 0

Answer:

12x-15

Step-by-step explanation:

A triangle has 3 sides

An equilateral triangle has 3 sides that are all the same length

The perimeter of a triangle is

P = s1+s2+s3

P = 4x-4 + 4x-5+4x-5

Combine like terms

P = 12x -15

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Svetlanka [38]

Answer:

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Step-by-step explanation:

you add 4 every time to solve for x

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2 years ago

What is the answer to 21x-14

serg [7]

Answer:

7(3x-2)

Step-by-step explanation:

you can factor it down with GCF ( Greatest common factor)

3 0

2 years ago

Read 2 more answers

Ricardo spends 8/9 hour reading the newspaper . He spends 1/4 of the time reading the world news and splits the remaining time e

Bond [772]

The answer is 8/9-1/4=23/36 reading the comics

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3 years ago

A shirt that is regulary priced at $22.50 is on sale for $18.00. What is the percentage of decrease in the price of the shirt?

Gre4nikov [31]

The price after the sale is (18/22.5)*100 = 80% from the original price
so, the percentage of decrease in the price of the shirt is 100% - 80% = 20%

another way,
how much is decreased / original price *100
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7 0

2 years ago

Suppose your weekly local lottery has a winning chance of 1/106. You buy lottery from them for x weeks in a row. What is the pro

Fynjy0 [20]

Answer:

The probability mass function that you never win $^xC_o$ = $(\dfrac{999999}{1000000})^x$

Step-by-step explanation:

Given that;

the winning chance of a weekly local lottery = $\dfrac{1}{10^6}$

= $\dfrac{1}{1000000}$

The probability of losing = 1 - probability of winning (winning chance)

The probability of losing = $1- \dfrac{1}{1000000}$

The probability of losing = $\dfrac{999999}{1000000}$

The probability mass function that you never win $^xC_o$ = $(\dfrac{1}{10^6} )^0 ( \dfrac{999999}{1000000})^x$

The probability mass function that you never win $^xC_o$ = $(\dfrac{999999}{1000000})^x$

7 0

3 years ago