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Gre4nikov [31]
3 years ago
5

If f (x) =6x-9, find f(4)​

Mathematics
2 answers:
Elden [556K]3 years ago
8 0

Answer:

f (x) =6x-9

f (4) =(6×4) -9

f (4) =24-9

f (4) = 15

kap26 [50]3 years ago
5 0

Answer:

f(4)= 15

Step-by-step explanation:

f (x) =6x-9

      = 6(4)-9

      =24-9

f(4) = 15

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Taya2010 [7]
The equation for this problem would be:
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8 0
3 years ago
Bobby will buy coffe and hot chocolate for his co-workers each cup of coffe costs $2.25 and each cup of hot chocolate costs $1.5
snow_lady [41]
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3 0
3 years ago
ABCD is a rectangle ,its diagonals meet at O.If AO = 5x+1 and BO = 4x+9,find the length of the diagonals .(lengths in cm).
Sergeu [11.5K]

Answer:

82 cm

Step-by-step explanation:

In rectangles diagonals are equal and bisect each other

AO = BO

5x + 1 = 4x + 9

Subtract 1 from  both sides

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5x = 4x + 8

Subtract 4x from both the sides

5x - 4x = 8

x = 8

AO = 5x + 1

     = 5*8  +1

     = 40 + 1

AO= 41 cm

Diagonal = 2*41 = 82 cm

7 0
3 years ago
Ollie and 5 of his friends are going bowling. The cost for each of them is $12.30. How could you mentally go about finding the t
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Answer:

The answer is 73.8

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