Find the length of the variable.

Answers

Answer 1

Answer: Hey!
For 45-45-90 triangles you use you use the formula L(on the square root of)2
L represents the legs.
So you plug in
3(on the square root of)2 times (the square root of)2
You multiply the square roots to get
3(on the square root of)4
You simplify the square root of 4 to 2
So 3 times 2 = 6
So 6 is the answer
Hope this helped!

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Joannie lent $200 to her sister. Four years later, her sister repaid her in full with $228. What simple annual interest rate did Joannie's sister pay? A. 3.0% B. 3.5% C. 4.0% D. 4.5%

Answers

The correct answer is B 3.5%

The answer is 3.5% because 3.5% of 200 is 7 so after four years you have collected 28 dollars from the past four years.

To win a basketball game, one team scored 113 points. They made a total of 41 two pointers and three pointers how many of the baskets were worth 2 points and how many were 3 pointers

Answers

So there are 41 two pointers and three pointers.
there are 21 two pointers and 20 three pointers

John's dog slept for 3 hours. If the dog slept 1/3 of every hour, how many times did he snore?

Answers

Then he slept 9 times. Because every hour is 60 minutes, since 1/3 of an hour is 20 mins, it should be 3 times per hour. So using basic math, 3 times 3 equals 9

Use the substitution method to solve. 2x+y=20
-5y=-6x+12
( , )
please help, also give a step by step on how to solve this and ill mark brainliest

Answers

Answer:

x = 7, y = 6

Step-by-step explanation:

solve for y for the first equation

2x + y = 20

-2x -2x , eliminate 2x

y = 20-2x

now that we have found y, substitute the y in for the second equation

-5y = -6x + 12

-5(20-2x) = -6x + 12, we just changed y into 20-2x. remember that we are multiplying all of 20 - 2x by -5

-100+10x = -6x + 12, we multiplied everything from the parathesis by -5

+100 + 100, eliminate -100

10x = -6x + 112

+6x +6x , eliminate 6x

16x = 112 , solve for x

x = 7

then y = 20 - 2x = 20 - 2*7 = 6

check:

2 * 7 + 6 = 20

20 = 20

-5 * 6 = -6 * 7 + 12

-30 = -42 + 12

-30 = -30

A cats catnip toy is on sale for 10% off the regular price of $3.30. find the sale Price

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3.30 - 10% = 2.97 that is the final sale price hope it helps ;)

Rewrite this equation in the form y = ax + b.
Y-3 = 1/2x+1

Answers

Answer: y = 1/2x + 4

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