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Lubov Fominskaja [6]
2 years ago
15

simplify the polynomial then finds its value for the given value of the variable 3x^3-x^3+5x^3-9x^3 if x=-1

Mathematics
1 answer:
melisa1 [442]2 years ago
5 0

Answer: 2

Step-by-step explanation:

3•(-1)^3 - (-1)^3 + 5•(-1)^3 - 9•(-1)^3

3•(-1) - (-1) + 5•(-1) - 9•(-1)

-3 +1 -5 +9= 2

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Please help!!!! <br><br> If f(1) = 2 and f(n+1) = f(n)^2 – 3 then find the value of f(3).
Black_prince [1.1K]

Answer:

The value of f(3) is -2.

Step-by-step explanation:

This is a recursive function. So

f(1) = 2

Now, we find f(2) in function of f(1). So

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

f(2) = f(1)^2 - 3 = 2^2 - 3 = 1

Now, with f(2), we can find the value of f(3).

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

f(3) = f(2)^2 - 3 = 1^2 - 3 = -2

The value of f(3) is -2.

4 0
3 years ago
Kanna wants to buy 6 of flowers. Each flower cost $1.30 but the bundle of 6 cost $7.50. What is the better deal for Kanna.
Nat2105 [25]

Answer: 6 for $7.50

Step-by-step explanation:

6 * 1.30 = $7.80

6 for $7.50

7 0
3 years ago
3. Use the diagram of a REGULAR HEXAGON and follow these steps to solve for the area of a hexagon with sides equal to 4 cm. Leav
Delicious77 [7]

Answer:

There are 6 equilateral triangles

you get an isosceles triangle

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3 0
3 years ago
the ratio to boys to girls in sixth grade is 5:3 if their are 400 sixth graders how many boys are their
ohaa [14]

Answer:

250 boys

Step-by-step explanation:

sum the parts of the ratio, 5 + 3 = 8 parts

Divide the total by 8 to find the value of 1 part of the ratio

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7 0
2 years ago
Read 2 more answers
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allochka39001 [22]

Answer:

1/12 square foot

Step-by-step explanation:

Area of the pattern = LEngth * Width

Given the following

Length = 1/2 foot

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Area of the pattern = 1/2 * 1/6

Area of the pattern  =1/12 square foot

Hence the area that the decorative pattern will cover will be 1/12 square foot

4 0
3 years ago
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