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Olenka [21]
3 years ago
9

The product of three binomials, just like the product of two, can be found with repeated applications of the distributive proper

ty.
(a) Find the product: (x - 2)(x + 4)(x - 7) . Use area arrays to help keep track of the product.
(b) For what three values of x will the cubic polynomial that you found in part (a) have a value of zero? What famous law is this known as?
Mathematics
1 answer:
mihalych1998 [28]3 years ago
3 0

Answer:

(b) For what three values of x will the cubic polynomial that you found in part

Step-by-step explanation:

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3 years ago
Which is f(5) for the function -2x2 + 2x - 3?
Schach [20]

The value of f(5) is -37

<em><u>Solution:</u></em>

<em><u>Given function is:</u></em>

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

We have to find the value of f(5)

To find the value of f(5), we have to substitute x is equal to 5 in given function

Plug in x = 5 in f(x)

f(x) = -2x^2+2x+3\\\\f(5) = -2(5)^2+2(5) + 3\\\\\text{Simplify the above expression }\\\\f(5) = -2(25) + 10 + 3\\\\\text{Solve the above expression }\\\\f(5) = -50 + 10 + 3\\\\f(5) = -40 + 3 = -37

Thus value of f(5) is -37

6 0
3 years ago
A school district had four elementary schools to start the year. North Elementary School had 1,200 students, East Elementary Sch
kobusy [5.1K]

Answer:

C

Step-by-step explanation:

Add all the schools together, then divide by 5

5805/5

6 0
3 years ago
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fgiga [73]

Answer:

C

Step-by-step explanation:

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2 × opp = 21 ( divide both sides by 2 )

opp = \frac{21}{2}

Now consider the right triangle on the right, using the cosine ratio

cos45° = \frac{adjacent}{hypotenuse} = \frac{\frac{21}{2} }{x} = \frac{1}{\sqrt{2} } ( cross- multiply )

x = \frac{21}{2} × \sqrt{2} = \frac{21\sqrt{2} }{2} → C

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3 years ago
A recipe for 1/2 lb of flour for 1 batch. How many batches can be made with 1 lb?​
WITCHER [35]

Answer:

2

Step-by-step explanation:

3 0
3 years ago
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