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Alborosie
3 years ago
14

Evaluate the expression

Mathematics
2 answers:
Dima020 [189]3 years ago
8 0
Well 1st you work your way across from each part of the problem. (subtract 40-4 on top) (add 9+3 on bottom)  This leaves you with a fraction that you then divide to simplify:)
alexgriva [62]3 years ago
3 0
\frac{40-4}{9+3} =  \frac{36}{12} = 3
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4 0
2 years ago
If T equals 1 / r + 1 / s equals r + S over RS, then what is 1 / T in terms of R&S?
Thepotemich [5.8K]
T=\dfrac{1}{r}+\dfrac{1}{s}\\\\T=\dfrac{1\cdot s}{r\cdor s}+\dfrac{1\cdot r}{r\cdot s}\\\\T=\dfrac{s}{rs}+\dfrac{r}{rs}\\\\T=\dfrac{s+r}{rs}\to\dfrac{1}{T}=\dfrac{rs}{s+r}
7 0
3 years ago
Please help with i am all ready late to turn it in
nekit [7.7K]

Answer:

1.-113

2.62

Step-by-step explanation:

1.-9^2+3(-9)-5

-81+-27-5

-113

2.5(7-(-9))+2(-9)

5*16-18

80-18

62

4 0
2 years ago
URGENT DUE IN 20 MINUTES FOR GRADE PLEASE HELP<br> 2/3 (x-7)= -2
ASHA 777 [7]
<span>2/3 (x-7)= -2
x - 7 = -2 * 3/2
x - 7 = -3
x = -3 + 7
x = 4</span>
7 0
3 years ago
Nool
larisa [96]

Answer:

Step-by-step explanation:

4x = 60

60/4 = 15

width : 15

length: 45

4 0
2 years ago
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