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3 years ago

What is the area and perimeter of a polygon with angles that equal 90 and a side the equals 8

Mathematics

1 answer:

IgorC [24]3 years ago

6 0

That is correct, the answer is correct

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530 divided by 16 give the quotient and remainder

damaskus [11]

33
_____
16 | 530
48
-------
50
48
----------
2

quotient = 33
remainder = 2

6 0

3 years ago

13x=-21-6y and -8x=36+6y

IgorLugansk [536]

Answer:

$x=3\\y=-10$

Step-by-step explanation:

$13x=-21-6y\\-8x=36+6y$

Let's take one of the equations and solve for x. I'll take the first one.

$13x=-21-6y$

Divide by 13.

$x=\frac{-21-6y}{13}$

Now replace x in the second equation.

$-8x=36+6y\\-8(\frac{-21-6y}{13} )=36+6y$

Distribute -8

$\frac{168+48y}{13}=36+6y$

Break down the fraction.

$\frac{168}{13}+\frac{48}{13}y=36+6y$

Subtract $\frac{168}{13}$

$\frac{48}{13}y=36+6y-\frac{168}{13}$

Subtract 6y

$\frac{48}{13}y-6y=36-\frac{168}{13}$

Combine like terms;

$\frac{48-13*6}{13}y=\frac{36*13-168}{13}$

Solve;

$\frac{48-78}{13}y=\frac{468-168}{13}$

Keep solving;

$\frac{-30}{13}y=\frac{300}{13}$

Multiply by the negative reciprocal of the fraction next to y.

$(-\frac{13}{30} )\frac{-30}{13}y=\frac{300}{13}(-\frac{13}{30} )$

On the right side; 13 and 13 become 1. 300/30 = 30/3 = 10

$y=-10$

After having found y, replace it in any of the equations to find x.

$13x=-21-6y\\13x=-21-6(-10)\\13x=-21+60\\13x=39\\x=\frac{39}{13}\\ x=3$

6 0

3 years ago

Read 2 more answers

the total land area for the United states is 3,537,438 square miles what is this value rounded to the nearest thousand square mi

Dahasolnce [82]

3,537,000 square miles

7 0

3 years ago

3/5 to second power times 25

Anestetic [448]

The answer is 9 because 3/5 to second power is 9/25 then you multiply it by 25 and you get 9

7 0

3 years ago

Tyrone ordered the same meal 3 days in a row. He paid a total of $12.06 for these 3 meals. How much did Tyrone pay for each meal

Romashka-Z-Leto [24]

Answer:

$4.02

Step-by-step explanation:

since he bought the same meal for 3 days, that means he payed the same amount every day for 3 days. the total is $12.06, so if u divide the total by 3, you will get how much he payed for one meal.

8 0

3 years ago