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luda_lava [24]
3 years ago
10

Given f(x)=2x^3-3x and g(x)=-3x^2+1, what is the value of h(3) where h(x)=(f+g)(x)?

Mathematics
1 answer:
Mamont248 [21]3 years ago
3 0

Answer:

h(3) = 73

Step-by-step explanation:

The function h(x) = f(x) + g(x) = 2x^3 -3x +3x^2 +1 = 2x^3 +3 x^2 -3x+1

Now since you need to find the value of this new function at the point x=3, replace x by "3" in the expression above and perform the calculation:

h(3) = 2(3)^3 +3 (3)^2 -3(3)+1=73

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it's 60

Step-by-step explanation:

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He needs to purchase some work clothes and notices that J.C. Penney is having a 25% off of your total purchase sale. He decides
SVETLANKA909090 [29]
First, lets determine the regular price of his purchase :

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Therefore, the regular price of his purchase is $291.87 before sales tax.

If he receives 25% off of his total purchase, then the price is now :

291.87 * .75 = $218.90

We multiply by 75% because we are only paying 75% of the total purchase price since we received a 25% discount.

The total savings is 

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If sales tax is 10%, the total purchase price after sales tax is :

218.90 * 1.10 = $240.79

The sales tax is $21.89 since

240.79 -218.90 = 21.89

If he pays with 3 $100 bills, we should receive :

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in change.
5 0
3 years ago
(-4,9), (-4 -3), and (-1, 9) what is the area?
Gnesinka [82]
The area of it is 18
5 0
3 years ago
The scale factor of figure JKLMN to figure PQRST is 3:2. If KL = 9 cm and MN = 15 cm, what is the length of side QR?
Alecsey [184]
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5 0
3 years ago
Country ​A, Country​ B, and Country C won a total of 130 medals. Country B won 10 more medals than Country C. Country A won 38 m
snow_lady [41]

Answer:

Country ​A = 84

Country​ B = 28

Country C = 18

Step-by-step explanation:

Country ​A, Country​ B, and Country C won a total of 130 medals;

A + B + C = 130 ......1

Country B won 10 more medals than Country C;

B = C + 10 .......2

Country A won 38 more medals than the total amount won by the other two;

A = B + C + 38 ........3

Substituting equation 3 to 1;

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2B + 2C + 38 = 130 .......4

Substituting equation 2 into 4;

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C = 72/4 = 18

B = C + 10 = 18 + 10 = 28

A = B + C + 38 = 18 + 28 + 38 = 84

Country ​A = 84

Country​ B = 28

Country C = 18

8 0
3 years ago
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