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3 years ago

F(x) = (x - 4)(x + 5)

Mathematics

1 answer:

drek231 [11]3 years ago

6 0

Answer:

+x−20

Step-by-step explanation:

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Evaluate the absolute value of 54

andreyandreev [35.5K]

| 54 | = 54

the absolute value of a number is just how far that number is from 0. And it is always positive.

in fact...| -54 |...the absolute value of -54 is also 54...because absolute values are positive, even if they say negative

6 0

3 years ago

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Pls help! Will mark Branliest!! 50 points for whoever answers!!!!!!

KiRa [710]

Answer: See below

Step-by-step explanation:

Isolate x for x-2y+2z=9

3x=9+2y

$x=\frac{9+2y}{3}$ ....(1)

Substitute (1) into the 2nd equation

$\begin{bmatrix}-\frac{9+2y}{3}+3y=-4\\ 2\cdot \frac{9+2y}{3}-5y+3z=16\end{bmatrix}$

$\frac{3\left(-9+7y\right)}{3}=3\left(-4\right)$

7y=-3

y=-3/7

Substitute y=-3/7

$\begin{bmatrix}3z+\frac{18-11\left(-\frac{3}{7}\right)}{3}=16\end{bmatrix}$

$\begin{bmatrix}3z+\frac{53}{7}=16\end{bmatrix}$

Isolate z by substituting it

$3z+\frac{53}{7}=16$

$\frac{3z}{3}=\frac{\frac{59}{7}}{3}$

$z=\frac{59}{21}$

For x =9+2y/3 substitute z=59/21 and y=-3/7

$x=\frac{9+2\left(-\frac{3}{7}\right)}{3}$

$x=\frac{19}{7}$

$x=\frac{19}{7},\:z=\frac{59}{21},\:y=-\frac{3}{7}$

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3 years ago

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What is the slope of the line connecting the points (2, 1) and (4, 5)?

masha68 [24]

Answer:

use y2 - y1 / x2 - x1

5 - 1 / 4 - 2 = 4/2 = 2

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Fudgin [204]

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X = M/9

Step-by-step explanation:

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makkiz [27]

Answer: 35%

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