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aev [14]
3 years ago
7

20 POINTS!!

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
7 0
Use the Pythagoras Theorem 
Tasya [4]3 years ago
4 0
20^2 + 21^2 = 27^2
400 + 441 = 729
881 = 729 (does not equal)

Not a right traingle
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What is the value of the expression shown right next to it -7 3/4 + 3 1/2
zubka84 [21]

Answer: -4\frac{1}{4}

<u>Step 1</u>

<u></u>-\frac{31}{4} + 3\frac{1}{2}<u></u>

<u></u>

<u>Step 2</u>

<u></u>-31/4+7/2<u></u>

Answer: -17/4

<u>Divide</u>

-17/4=-4.25

-4.25=-4\frac{1}{4}

6 0
3 years ago
Read 2 more answers
If ON = MN, find MN.<br> A 4<br> B. 5<br> C. 4 square root 2<br> D. 4 square root 30
elena-14-01-66 [18.8K]

Answer:

c

Step-by-step explanation:

ON=MN, so triangle onm is a right isosclese triangle, so ON=NM=4 square root 2

4 0
3 years ago
Read 2 more answers
Algebra!!!<br> 3 Questions Only take if you know ALL Answers<br> PLZZZ QUICK
vitfil [10]

Answer:

1. -7.5

2. $1

3. 40

Step-by-step explanation:

For number 1, it can be solved by using the PEMDAS method, or see explanation below:

6x - 4x - 36 = 6 - 2x

2x - 36= -2x + 6

4x + 36 = 6

4x = -30

x = -15/2 or -7.5

For number 2, substitute 3 into both equations:

f(x) =1.50(3) + 2.00

and

f(x) = 2.00(3) + 1.50

This would get $6.50 and $7.50, which, if subtracted, gets $1.

For number 3, do something similar to the previous problem. Substitute 3 for x. It would be 5(2^3), or 40.

Hope this helps!

7 0
3 years ago
Write as a decimal number.<br> 9-10
Ad libitum [116K]

Answer:

.9

Step-by-step explanation:

9 divided by 10

8 0
2 years ago
Y= 2x + 6 for x = 0,1,2,3,4
algol [13]

x=0    y=6

x=1     y=8

x=2    y=10

x=3    y=12

x=4    y=14

8 0
3 years ago
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