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Alexxandr [17]
3 years ago
11

If f(x)=2x+3 and g(x)=x2 -1

Mathematics
1 answer:
GenaCL600 [577]3 years ago
7 0

Answer:

Step-by-step explanation:

(f + g)(2) = 2(2) + 3 + (2)^2 - 1 = 10

(f - g)(4) = 2(4) + 3 - (4)^2 + 1 = -4

(f / g)(2) = (2(2) + 3) / ((2)^2 -1) = 7/3

(f * g)(1) = (2+3)(1-1) = 0

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No, It is not. Factor out 2 from it

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what is the answer to Graph the function. f(x)=cos(x)−3 Use 3.14 for π i need it now im struggling on this test
kvv77 [185]

Answer:

we can draw the graph of cosine with amplitude 2.

Step-by-step explanation:

In the given function g(x) = 2cosx we know the following parameters which are helpful to draw the graph.

Its a cosine graph given in the form of y = acos(Bx + c) + d

Here a is amplitude, period = , c = phase shift, d = vertical shift

We know a = 2, B = , c = 0, d = 0.

8 0
3 years ago
How much cashews at $1.58 per pound must be mixed with walnuts that cost 78 cents per pound to make a mixture of 40 pounds of nu
Likurg_2 [28]

Number of pounds of cashews is 36 pounds and number of pounds of walnuts is 4 pounds.

Step-by-step explanation:

  • Step 1: Given details are cost of cashews = $1.58, cost of walnuts = 78 cents = $0.78, total weight of nuts = 40 pounds, cost of nuts per pound = $1.50
  • Step 2: Let number of pounds of cashews to be mixed be C, then number of pounds of walnuts will 40 - C. Form equation with these variables.

⇒ 1.58 C + (40-C) 0.78 = 40 × 1.50

⇒ 1.58 C + 31.2 - 0.78 C = 60

⇒ 1.58 C - 0.78 C = 60 - 31.2

⇒ 0.8 C = 28.8

⇒ C = 36 pounds

  • Step 3: Calculate number of pounds of walnuts

⇒ Number of pounds of walnuts = 40 - C = 4 pounds

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Answer:

Step-by-step explanation:

d = c/pi

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3 years ago
What is 6 qt 15 fl oz - 4 pt 4 fl oz =____pt____fl oz
yan [13]

Answer:

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Step-by-step explanation:

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