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2 years ago

What can be determined by looking at the polynomial f(x)=(x+3)(x−7)?

Mathematics

1 answer:

Luda [366]2 years ago

3 0

Answer:

A quadratic equation

Step-by-step explanation:

$f(x) = (x + 3)(x - 7) \\ f(x) = {x}^{2} - 7x + 3x - 21 \\ f(x) = {x}^{2} - 4x - 21$

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kompoz [17]

Answer:

0.8

Step-by-step explanation:

(2 x 10^-4)

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(4x10^3)

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3 years ago

Find the midpoint of the segment with the following end points (10,5) and (6,9)

Taya2010 [7]

Answer:

The mid-point between the endpoints (10,5) and (6,9) is:

$\left(x,\:y\right)=\left(8,\:7\right)$

Step-by-step explanation:

Let (x, y) be the mid-point

Given the points

(10,5)

(6,9)

Using the formula to find the mid-point between the endpoints (10,5) and (6,9)

$\left(x,\:y\right)=\left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)$

Here:

$\left(x_1,\:y_1\right)=\left(10,\:5\right),\:\left(x_2,\:y_2\right)=\left(6,\:9\right)$

Thus,

$\left(x,\:y\right)=\left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)$

$\left(x,\:y\right)=\left(\frac{6+10}{2},\:\frac{9+5}{2}\right)$

$\left(x,\:y\right)=\left(8,\:7\right)$

Therefore, the mid-point between the endpoints (10,5) and (6,9) is:

$\left(x,\:y\right)=\left(8,\:7\right)$

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2 years ago

Solve by elimination.

Ulleksa [173]

I got (X,Y) (11,10)

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2 years ago

Evaluate the expression when f = 4.16/f

astraxan [27]

9514 1404 393

Answer:

Step-by-step explanation:

Maybe you want the value of 16/f when f=4. Put the value of f where f is and do the arithmetic.

$\dfrac{16}{f}=\dfrac{16}{4}=\boxed{4}$

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2 years ago

You go to a restaurant and order $137.61 worth of food. You decide to tip the waiter

worty [1.4K]

Answer:

I got 2

Step-by-step explanation:

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2 years ago