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2 years ago

If f(x) = 3x - 5 and g(x) = 7x + 2, what is (f * g)(x)? NEED HELP ASAP!!!!

Mathematics

1 answer:

QveST [7]2 years ago

6 0

Answer:(f*g)(x)= 21x^2 -29x -10

Step-by-step explanation:

(3x-5)(7x+2)

21x^2-35x+6x-10

21x^2-29x-10

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2 years ago

The correlation in error terms that arises when the error terms at successive points in time are related is termed _____.

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1 year ago

The weight P in pounds that a beam can safely carry is inversely proportional to the distance D in feet between the supports of

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2 years ago

Use the table at the right.<br> a. What is the approximate volume of the small truck?

irina [24]

Volume of the small truck = 554.54 cubic ft

Solution:

Given data:

Length of the small truck = $11\frac{1}{13}$ ft

Width of the small truck = $7\frac{5}{12}$ ft

Height of the small truck = $6\frac{3}{4}$ ft

Volume of the small truck = length × width × height

$$=11\frac{1}{13}\times7\frac{5}{12}\times 6\frac{3}{4}$

Let us change the mixed fraction into improper fraction.

$$=\frac{11\times 13 + 1}{13}\times\frac{7 \times 12 + 5}{12}\times \frac{6 \times 4 + 3}{4}$

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$$=\frac{7209}{13}$

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6 0

2 years ago

Scott brought $23.25 to the art supply store. He bought a brush, a sketchbook, and a paint set. The brush was one fourth as much

fenix001 [56]

Answer:

Paint set cost = 10.5 , Sketch book cost = 7 , Brush cost = 1.75

Step-by-step explanation:

Let the cost of paint set be = p

Cost of sketchbook 's' = (2 / 3) p

Cost of brush 'b' = 1/4th of s = 1 / 4 [ (2 / 3) p ] = (1 / 6) p

Total expenditure = Money bought - Money left = 23.25 - 4 = 19.25

Total expenditure = Cost of (pen + of sketchbook + of brush) = p + s + b

= p + (2 / 3) p + (1 / 6) p = 19.25 → p + 2p / 3 + p / 6 = 19.25

( 6p + 4p + p ) / 6 = 19.25 → 11p / 6 = 19.25 → p = ( 19.25 x 6 ) / 11

p = 10.5 ; s = (2 / 3) p = 2 / 3 (10.5) = 7 ; b = (1 / 6) p = 10.5 / 6 = 1.75

8 0

2 years ago