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makkiz [27]
4 years ago
12

(1) 8/5+0=8/5=0+8/5 (2) (3/5+1/2)=2(3/5)+2(1/2)​

Mathematics
1 answer:
Bond [772]4 years ago
7 0

Answer:

(1)communicative property

(2) i d k

Step-by-step explanation:

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A woman who has recovered from a serious illness begins a diet regimen designed to get her back to a healthy weight. She current
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Answer:

a.) w = 103 * 1.08^t

b.) 3.5weeks

Step-by-step explanation:

If Her current weight is 103 pounds and she hopes to multiply her her weight each week by 1.08, then

her weight after 1 week = 103 * 1.08 = 103 * 1.08¹

Her weight after 2 weeks = [weight of week 1] * 1.08 = [103* 1.08] * 1.08 = 103 * 1.08²

Weight after 3 weeks= [weight of week 2] * 1.08 = [103 * 1.08 * 1.08] * 1.08 = 103 * 1.08³

Hence weight (W) after t weeks = 103 * 1.08^t

b.) If W = 135, Then

103 * 1.08^t = 135

1.08^t = 135/103

1.08^t = 1.31

Taking log of both sides,

log 1.08^t = log 1.31

t log 1.08 = log 1.32

t = log 1.32/log 1.08

t = 3.5 weeks.

Hence, it will take her 3½ weeks to get to 135pounds weight.

7 0
3 years ago
Find the difference (3-13x-7x^2)-(5x^2+ 12x-10)
Nikolay [14]
3 - 13x - 7x^2 - (5x^2 + 12x - 10)
Distributing the negative over the parentheses chamges the signs:-
= 3 - 13x - 7x^2 - 5x^2 - 12x + 10
adding like terms:-
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Its B
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3 years ago
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yanalaym [24]

Answer:

0

Step-by-step explanation:

5-5=0

I hope this is correct and have a great day

8 0
3 years ago
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