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daser333 [38]
2 years ago
8

Triangle ABC has been rotated 90° to create triangle DEF. Using the image below, prove that lines BC and EF have the opposite an

d reciprocal slopes. You must show all of your work to receive credit.

Mathematics
1 answer:
denis-greek [22]2 years ago
5 0
The correct answer is acute.
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14^2 - square root o f 144​
stealth61 [152]

Answer:

184

Step-by-step explanation:

The sqrt(144) = 12

14^2 = 196

196 - 12 - 184

7 0
3 years ago
Write an expression to represent: The sum of ten and the quotient of a number x and 6.
Minchanka [31]
Let us break it down. A sum of ten. That is just 

+10

Then, we will add that to the quotient (which is the number after dividing) of a number x and 6. We can write that as 

+ x/6

The slash means division here. Thus your final answer is 


10 + x/6
8 0
3 years ago
Hara asked 5 more Friends to choose their favorite flavor. 3 friends chose berry and 2 friends chose lime. Do more friends like
lianna [129]

Answer:

Step-by-step explanation:they are even

5 0
3 years ago
5(2f+3)+7. please simplify
Sergio [31]
Hi there!

5(2f+3)+7
= 10f+15+7
= 10f+22

Hope this helps!
3 0
3 years ago
Read 2 more answers
2. Kelsea needs a test average of at least 90 to get an "A-" this marking period in math. Her three test grades
Luda [366]

Answer:

<u>Equation:  87 + 91 + 86 + x = 360</u>

<u>Solution: 264 + x = 360</u>

<u>x = 360 - 264</u>

<u>x = 96</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

First three Kelsea's test grades : 87, 91 and 86

2. What score must she get on her fourth test to receive at least an A- ?

Define variable:  x that represents the grade needed by Kelsea on her fourth test to receive at least an A-

Equation:  87 + 91 + 86 + x = 360

Solution: 264 + x = 360

x = 360 - 264

x = 96

<u>Now you can understand if the previous work you did is correct</u>

6 0
3 years ago
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