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3 years ago

If f(x) = │(x² – 50)│, what is the value of f(-5) ?

Mathematics

2 answers:

Tju [1.3M]3 years ago

6 0

Have a nice day :)
_______________

AleksandrR [38]3 years ago

5 0

F(x) = │(x² – 50)│

f(-5) = │(-5² – 50)│

f(-5) = │(25 – 50)│

f(-5) = │(-25)│

f(-5) = 25

$\framebox[1.1\width]{ f (-5) = 25} \par \\ \\ \framebox[1.1\width]{ Good Luck} \par$

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How do find you equivelant expressions?

Svetlanka [38]

You'll have to start off by finding the variables. Ex:

3(x + 3) - 2(x + 3)

As you can see here, the two similar variables are x. By using the distributive property, you will get this:

3x + 9 - 2x + 6

Next, you'll want to subtract the two variables, since 2x has a - in front of it:

1x + 9 + 6

or

x + 9 + 6

Then, you want to add the two numbers without the variable:

x + 15

Your answer is x + 15.
Hopefully that helped! :)

4 0

3 years ago

Simplify the expression plz.

lakkis [162]

-1 2/4y+1 1/2-10
-1 1/2y+1 1/2-10

5 0

3 years ago

HURRY PLEASE

klasskru [66]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$y=0,\:x=6$

Step-by-step explanation:

Considering the system of the equations

$\begin{bmatrix}2x-7y=12\\ -x+15y=-6\end{bmatrix}$

$\mathrm{Isolate}\:x\:\mathrm{for}\:2x-7y=12$

$2x-7y+7y=12+7y$

$2x=12+7y$

Divide both sides by 2

$\frac{2x}{2}=\frac{12}{2}+\frac{7y}{2}$

$x=\frac{12+7y}{2}$

$\mathrm{Subsititute\:}x=\frac{12+7y}{2}$

$\begin{bmatrix}-\frac{12+7y}{2}+15y=-6\end{bmatrix}$

$-\frac{12+7y}{2}+15y=-6$

$\mathrm{Multiply\:both\:sides\:by\:}2$

$-\frac{12+7y}{2}\cdot \:2+15y\cdot \:2=-6\cdot \:2$

$-\left(12+7y\right)+30y=-12$

$-12+23y=-12$

$-12+23y+12=-12+12$

$23y=0$

$\mathrm{Divide\:both\:sides\:by\:}23$

$\frac{23y}{23}=\frac{0}{23}$

$y=0$

$\mathrm{For\:}x=\frac{12+7y}{2}$

$\mathrm{Subsititute\:}y=0$

$x=\frac{12+7\cdot \:0}{2}$

$x=\frac{12}{2}$

$x=6$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$y=0,\:x=6$

4 0

4 years ago

A line with a slopeof 8/7 passes through the point (7,8). what is its equation in slope-intercept form?

saw5 [17]

8x - 7y = 0 is the equation in slope-intercept form of the line with a slope of 8/7 passes through the point (7,8). This can be obtained using the formula of equation for the Slope Intercept Form.

<h3>What is its equation in slope-intercept form?</h3>

The formula of equation for the Slope Intercept Form is given below,

y = mx + b,

where m is the slope of the line, b is the y intercept where the line crosses the y-axis at (0, b).

Here in the question it is given that,

The slope of the line is 8/7

The line passes through the point (7,8)

We have to find the equation in slope-intercept form.

By using formula of equation for the Slope Intercept Form we get,

y = mx + b,

here,

⇒ from the point (7, 8), x = 7 and y = 8

⇒ slope, m = 8/7

To find y intercept we use the slope-intercept form equation,

y = mx + b

8 = (8/7)7 + b

8 = 8 + b

⇒ b = 0

Thus the equation in slope-intercept form will be,

y = mx + b

⇒ y = (8/7)x + 0

⇒ 7y = 8x

⇒ 8x - 7y = 0

Hence 8x - 7y = 0 is the equation in slope-intercept form of the line with a slope of 8/7 passes through the point (7,8).

Learn more about slope-intercept form here:

brainly.com/question/9682526

#SPJ4

6 0

1 year ago

3=g/-4-5 g=??<br>i need help asappp

Scrat [10]

Answer:

g = -32

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers