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lesya692 [45]
3 years ago
13

If f(x)=5x-7,what isf(3)?​

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
4 0

Answer:

Explanation:

f  (  − 3 )  basically means substitute  − 3  for  x  in the function  − 5 x

f

(

−

3

)

=

−

5

(

−

3

)

−

7

f

(

−

3

)

=

15

−

7

f

(

−

3

)

=8

Step-by-step explanation:

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fomenos

Answer:

y= x + 3

Step-by-step explanation:

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2 years ago
a city bus completes its entire route 3 times each hour how long will it take the bus to complete the entire route 10 times
SOVA2 [1]

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3 0
3 years ago
Mrs. Reed collects shells. Each shell in her collection weighs about 4 ounces. Her collection weighs about 12 pounds in all. Abo
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Answer:

There are about 48 shells in Mrs. Reeds collection.

Step-by-step explanation:

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8 0
3 years ago
. The volume of a box is 405 cubic units. The length is x units, the width 4 units greater than the length, and the height is 9
lukranit [14]

Answer:

length = 5

width = 9

Step-by-step explanation:

V = lwh

let 'x' = length

let '4+x' = width

9 = height

405 = 9x(4+x)

405 = 36x + 9x²

this is a quadratic equation:  9x² + 36x - 405 = 0

factor out a 9 to get:

9(x² + 4x - 45) = 0

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one root is 5 and the other is -9

since distance cannot be negative we use 5 as the length and 9 is the width

3 0
3 years ago
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cupoosta [38]
Im pretty sure that i can solve this for ya
6 0
3 years ago
Read 2 more answers
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