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Monica [59]
3 years ago
15

A boy weighs 18 kilograms. How much does he weigh in pounds? Use the following conversion: 1 kilogram is 2.2 pounds

Mathematics
1 answer:
mihalych1998 [28]3 years ago
8 0
39.6832 is your answer
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If f(x)= 3x squares +1 and g(x) =1-x what is the value of (f-g)(2)
ZanzabumX [31]

Answer: (f-g)(2)=14

Step-by-step explanation:

(f – g) (-2) means the same as subtracting f(2) and g(2). Since we are given f(x) and g(x), we can use them to solve. There are two ways to solve. One is to find f(2) and g(2), and then subtract them. Another way is to do (f-g)(x), then plug in x=2. I will show both methods.

Method 1

f(2)=3(2)²+1                                [exponent]

f(2)=3(4)+1                                  [multiply]

f(2)=12+1                                     [add]

f(2)=13

g(2)=1-(2)                                    [subtract]

g(2)=-1                  

(f-g)(2)=13-(-1)                            [subtract f(2) and g(2)]

(f-g)(2)=14

--------------------------------------------------------------------------------------------------------

Method 2

(f-g)(x)=3x²+1-(1-x)                     [distribute -1]

(f-g)(x)=3x²+1-1+x                      [combine like terms]

(f-g)(x)=3x²+x

(f-g)(2)=3(2)²+2                         [plug in x=2, exponent]

(f-g)(2)=3(4)+2                           [multiply]

(f-g)(2)=12+2                             [add]

(f-g)(2)=14

--------------------------------------------------------------------------------------------------------

Now, we know that (f-g)(2)=14. We confirmed this with both methods.

8 0
3 years ago
I NEED HALP CAN SOMEONE HELP ME QUICK!
dybincka [34]

Answer:

2 times 3 is 6 to the 2nd power is 36 - 5 to the second power is 25

36-25=11

Step-by-step explanation:

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PLEASE HELP IS POSSIBLE :)
Arisa [49]

Answer: 9 inches

Step-by-step explanation:

3 0
3 years ago
Someone PLEASE help me this is insane!
yaroslaw [1]

Answer: I think -131

Step-by-step explanation:

5 0
2 years ago
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Please help. I am doing a test and I do not understand what I am being asked.
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Answer:

one

Step-by-step explanation:

i have no idea what kind of test ur taking my guy but have fun

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3 years ago
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