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marysya [2.9K]
3 years ago
13

If f(x)=2x^2+3 and g(x)=x^2-7 find (f+g)(x)

Mathematics
1 answer:
Ivan3 years ago
8 0

Answer:

Answer is (f + g)(x) = 3x^2 - 4

Step-by-step explanation:

Given,

f(x) = 2x^2 + 3

g(x) = x^2 - 7

To find : (f + g)(x)

(f + g)(x) = f(x) + g(x)

             = (2x^2 + 3) + (x^2 - 7 )

             = 2x^2 + x^2 + 3 - 7

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

Hence we get (f + g)(x) = 3x^2 - 4

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Estimate the quotient using compatible numbers.<br><br> 3,512 ÷ 9<br><br> 30<br> 400<br> 300<br> 40
madreJ [45]

Answer:

400. just use simple devision and it'll tell you.

5 0
2 years ago
Nathan opens a new savings account and makes an initial deposit of $400.
AfilCa [17]

Answer:

The answer to the first one is 6

Step-by-step explanation:

If the time frame given is 9 months, then we can find that 9 months is 3/4 of a year. 3/4 x 2% = 0.015.     0.015 x 400 = 6. He would have made 6 dollars in 9 months.

Answer the the second one:

4.5% x 5 (years) = 0.225.     0.225 x 10,000 = 2,250. Since this is a car loan and not a bank interest for example, we add it to the total cost. I'm pretty sure its the third one.

6 0
3 years ago
A quality control technican checked a sample of 30 bulbs. Two of the bulbs were defective. If the sample was representative, fin
masha68 [24]

Answer:30

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3 0
3 years ago
Estimate -29 (-2/7)​
VLD [36.1K]

Answer: ≈ 8 (About 8)

Step-by-step explanation: The actual number if you want is 8.28571428571.

Mark Brainliest if this helped!

8 0
3 years ago
Read 2 more answers
Write an exponential function y = ab" whose graph passes through (2,12) and (5,96).
motikmotik

Answer:

y = 3(2)^{x}

Step-by-step explanation:

Substitute the given points into the function and solve for a and b

Using (2, 12)

12 = ab² → (1)

Using (5, 96)

96 = ab^{5} → (2)

Divide (2) by (1)

\frac{ab^5}{ab^2} = \frac{96}{12} , that is

b³ = 8 ( take the cube root of both sides )

b = \sqrt[3]{8} = 2

Substitute b = 2 into (1) and solve for a

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3 = a

Thus

y = 3(2)^{x} ← is the exponential function

3 0
3 years ago
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