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Harlamova29_29 [7]
3 years ago
9

MATH, please help! I don’t understand

Mathematics
1 answer:
Westkost [7]3 years ago
4 0

Answer:

The first option is correct

Step-by-step explanation:

Surface area for a cylinder: 2\pi r^2+2\pi rh

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cho phương trình 2x^2-5x-9 có hai nghiệm là x1,x2. không giải phương trình, hãy tính giá trị của biểu thức A= x1^2+x2^2-2x1x2^2
irga5000 [103]

Step-by-step explanation:

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8 0
3 years ago
A repair bill for a car is $648.45. The parts cost $265.95. The labor cost is $85 per hour. Write and solve an equation to find
zysi [14]

Answer:

( t - p ) /  85x =  h

( t - 265.95 ) /  85x  = h

648.45 - 265.95 / 85x = 3.32h

h = 3.32

Therefore ( t - p ) /  85x =  3.32

Step-by-step explanation:

648.45 - 265.95

282.50 /85

= 3.32 hrs

Finding equation to find hours can be shown as

( t - p ) /  85x =  3.32

How we found equation to find total

Parts = 19 x 14 - 5/100 = 266- 0.05

648.45 - 265.95 = 282.5

282.5/85 = 3.323  near to 3,233529

Labour = 85x  = 17 (5 + x)

Equation = 17(5+ x) + 14(19) - 5/100 = 648.45 where x = 85

Equation = ( 85x x 3  1/3) + 265 - 19/20 = t

3 0
2 years ago
Given graph a above,what is the value of f(-2)?
WITCHER [35]

Answer:

y=3

Step-by-step explanation:

F(x)=f(-2) so go to -2 on the x axis and then find the y

4 0
3 years ago
How many different ways can letters be arranged in the name brenda?
svp [43]
There is 720 dif. ways to arrange it.
6 0
3 years ago
The 4th time of me posting this question
Vanyuwa [196]
Not clear crop it more
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3 years ago
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