Evaluate the expression when x=-1 and y= -8 z=1/4xyz

Mathematics

1 answer:

mr_godi [17]4 years ago

5 0

Substitute the values of x, y and z to the expression:

$x=-1,\ y=-8,\ z=\dfrac{1}{4}\\\\xyz=(-1)(-8)\left(\dfrac{1}{4}\right)=(8)\left(\dfrac{1}{4}\right)=\dfrac{8}{4}=2$

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Need help with this!

katen-ka-za [31]

Answer:

488

Step-by-step explanation:

Calculate 20% of their take-home pay

3600 * 0.20 = 720

They already pay 122 and 110 per month

720 - (122 + 110)

720 - 232

488

So the largest monthly car payment they can afford is 488

7 0

3 years ago

Picture shown!

True [87]

Answer:

$slope = \frac{y2 - y1}{x2 - x1}$

Get any two points and substitute into the formula:
Using points (- 2, 0) and (0, - 4)

$slope = \frac{(0) - ( - 4)}{( - 2) - 0}$

$slope \: = \frac{4}{ - 2} = - 2$

The slope is negative so the graph is:

Decreasing
On the fall
Falling

SLOPE = - 2

7 0

3 years ago

75 POINTS!!! WILL MARK BRAINLIEST!!! Find the measure of angle LNM

Harlamova29_29 [7]

m∠LNM = 54°

Here is why:

In this photo there are two important angles with very important features, a central angle and an inscribed angle.

A central angle is an angle that is in the center of the circle, so angle P is a central angle. The arc that is associated with this angle is going to be the same measure as the central angle. I have labeled this in the photo below as blue.

An inscribed angle is an angle that lies on the circle, so angle N is an inscribed angle. The arc that is associated with this angle will be double the amount of the inscribed angle, or the angle is half of the measure of the arc. I have labeled this in the photo below as red.

Since we know that the central angle is 108°, with what we know about central angles we know that arc LM is going to be 108° as well.

We also know that an inscribed angle is half the amount of the arc so...

108 ÷ 2 = 54

m∠LNM = 54°