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4 years ago

7

Help please on 7 & 8

2 answers:

enot [183]4 years ago

7 0

Do a method that I like to call PEMDAS solve what is inside parentheses then exponents, multiply, divide, add, and subtract !!

Aleonysh [2.5K]4 years ago

4 0

PEMDAS

7.
(7+2y) 9y
3 times 6.5 is 19.5

=19.5+x-xTIMES 9y

I'm sorry if these aren't 100% correct but I just did it how I learned but I sort of forgot and that's how I remember...

8.
2 times 8.7 is 17.4
2 times 1.5 is 3
17.4+3 is 20.4
20.4+3 is 23.4
8.7+1.5 is 10.2
10.2 times 23.4 is 33.6
1.5 times 1.5 is 2.25
33.6-2.25 = 31.35

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BabaBlast [244]

Answer: k=1 which equals 1k.

Step-by-step explanation:

k+0=k

k is really 1k

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3 years ago

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USPshnik [31]

Answer:

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3 years ago

Help help help helpppp

lord [1]

Answer:

39.7

Step-by-step explanation:

first must calculate the length of AB and BC

AB = 16.43

CB= 12.216

then perimeter : Perimeter of a triangle = sum of all three sides

$16.43 + 11 + 12.216 = 39.646 = 39.7$

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