Evaluate the following expression when x = -2 y = 3 z = - 4

Answers

Answer 1

Answer:

x=-4

y= 2

z= -4/3

Step-by-step explanation:

x= -4 (directly)

-2y = -4

or, y = -4/-2

y =2

3z= -4

z= -4/3


Related Questions

What is the equation of a line with a slope of 2 and a y intercept of -5?

Answers

Answer:

y=2x-5

Step-by-step explanation:

The slope is how you move so you could also call it m

The y intercept is where you begin so you could call it b

So every time you need to find the equation or which one is like the slope just remember m=move b= begin

y=mx+b

Choose the graph of the system of equations.
P=10d
P=8d+40

Answers

Answer:

Step-by-step explanation:

10d = 8d + 40

2d = 40

d = 20

10(20) = P

200

(20, 200)

Option 1 is the first choice

Carmen bought 15 pounds of sugar for $9.
How many pounds of sugar did she get per dollar?

(round to the nearest hundredth)

Answers

She got approximately 1.67 pounds of sugar per dollar. Please mark brainliest it would greatly be appreciated.
the answer would be 1.67

who is the father of politics

Answers

pretty sure it’s aristotle.

HELP ASAP. please show work. the plane of a room in the picture. the scale is 2 inches: 6 feet. what is the actual length, width , and area?

Answers

Answer:

Actual Length: 27 feet - Actual Width: 15 feet - Actual Area: 405 feet

Step-by-step explanation:

First, to find the length, you have to divide 9 by 2 to get 4.5 and then multiply it by 6 to get the actual amount of feet. Then you divide 5 by 2 and multiply the quotient by 6 to get the actual width. Then, you take the actual length (27 feet) and multiply it by the actual width (15 feet) and you get an area of 405 feet

if 45% of an item is $135.00, what is the original price

Answers

300. I believe would be the answer to that.

Find the value of x and justify your answer

Answers

Answer:

a.

2x+4x+3x=180 sum of interior angle of the triangle is 180

9x=180

x=180/9=20

b.

x-20+x+10+x-20=180sum of interior angle of the triangle is 180

3x-30=180

3x=180+30

x=210/3=70

c.x+10+x+20+x=180 linear pair

3x+30=180

3x=180-30

x=150/3=50

Answer:

A: x=20

Step-by-step explanation:

angles in a triangle always equal 180° so knowing this 2x+3x+4x=180

9x=180

9x÷9=x

180÷9=20

Which equation represents a proportional relationship that has a constant of proportion nationality equal to 4 - 5

Answers

Question:

Which equation represents a proportional relationship that has a constant of proportionality equal to 4/5

Answer:

[tex]y = \frac{4}{5}x[/tex]

Step-by-step explanation:

Required

Equation with 4/5 as its constant of proportion

Two proportional quantities x and y have the following relationship:

[tex]y = kx[/tex]

Where k is the constant of proportion.

In this case:

[tex]k = \frac{4}{5}[/tex]

So.

[tex]y = kx[/tex] becomes

[tex]y = \frac{4}{5}x[/tex]

Which set of ordered pairs represents y as a function of x?

Answers

Answer:

D is the correct answer

Explanation:

the following function satisfies each output to its input for the set D

f(x)=x/2

let's check each pair:

0/2=0

-1/2=-0.5

-2/2=-1

-3/2=-1.5

-4/2=-2

the reason why A, B, and C can't be pairs of inputs and outputs x and y it's because a variable x can't have more than one y (that's a behaviour of an equation not a function!)

- in A x=-1 | y=2, -2 and this wrong

- in B x=3 | y=9, 16 and this wrong

- in C x=0 | y=0, 1 and this wrong

I hope this was helpful

What is the equation of the line with a y-intercept of −10 and a slope of 3?

y
=

10
x

3

y = − 10 x − 3

y
=

10
x
+
3

y = − 10 x + 3

y
=
3
x

10

y = 3 x − 10

y
=
3
x
+
10

y = 3 x + 10

Answers

tem que ser portugeis lindo tchua feio

Step-by-step explanation:

aaahahahahajababababaabb ano reposta e eeeeee 3992

Use the double bar graph below to answer the following question.

What was the population of San Diego in 2000?



1,000,000
1,200,000
1,100,000
2,000,000

Answers

Answer:

the population would be 1,200,000 of San Diego in 2000

Answer:

1,200,000 is your answer

Step-by-step explanation:

100 points! Look at the picture attached. I will mark brainliest! Random answers will be reported.

Answers

Answer:

this is your answer look it once

Answer:

5: x > 6

6: x < 62

Step-by-step explanation:

[tex](1)x + 14 < 2(3x - 8) \\ x + 14 < 6x - 16 \\ x - 6x < - 16 - 14 \\ -5x < - 30 \\ x > \frac{ - 30}{ - 5} \\ x > 6 \\ [/tex]

[tex](2)2(x + 22) > 3x - 18 \\ 2x + 44 > 3x - 18 \\ collect \: like \: term \\ 2x - 3x > - 18 - 44 \\ - x > - 62 \\ x < 62[/tex]

What is the most common number of sit-ups completed in 1 minute? Explain how you used the dot plot to identify this number.
Write your answer in the space below.

Answers

Answer:

38.

Step-by-step explanation:

38 is the highest column in the plot.

Answer:

Heya

Step-by-step explanation:

the most common number of sit-ups completed in 1 minute is 38

hope it will be helpful :)

Tom has 4 1/2 cases of soda.if there are 12 cans in case, how many cans does Tom have?

Answers

Answer:

54 cans

HOPE THIS HELPS

-Todo <3

Step-by-step explanation:

4*12=48

48+6=54

PLSSS HURRY!!!

Here are the answer choices

A. counterclockwise rotation

B.Clockwise rotation

C.90 rotation

D. 45 rotation

E. 180 rotation

Answers

Answer:

B. Clockwise Rotation

Step-by-step explanation:

i hope it helps ;)

B. Cya adrianna ps. U shouldn’t include ur name in the photos

Which expression models the phrase "Wally mowed two more lawns than he mowed last week"? n + 2 n minus 2 2 minus n 2 n

Answers

Given:

The phrase is "Wally mowed two more lawns than he mowed last week".

To find:

The expression that models the given phrase.

Solution:

Let the number of lawns mowed by Wally last week be n.

We know that, we use plus sign "+" for "more".

If Wally mowed two more lawns than he mowed last week, then the lawns mowed by the Wally this week is the sum of n and 2.

Lawns mowed this week = [tex]n+2[/tex]

The required expression for the phrase "Wally mowed two more lawns than he mowed last week" is n+2.

Therefore, the correct option is A.

Answer:

A

Step-by-step explanation:

Answer both parts please​

Answers

Answer:

1-21m hight and 23 lenght

2-45 hight and 11 length

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If BC=6 and DC=4, what is the length of AC ?

Answers

Step-by-step explanation:

BC^2 + DC^2 = AC^2

6^2 + 4^2 =AC^2

36 + 16 = AC^2

52=AC^2

√52=AC

AC=7.2111

the table shows the heights of 40 students in a class b.) explain why your answer (a) is an estimate

Answers

Answer:

whatssssssssssssssssssss

Quadrilateral BCDE is similar to quadrilateral FGHI. Find the measure of side FG. Round your answer to the nearest tenth.

Answers

Answer:

The answer is below

Step-by-step explanation:

Two polygons are said to be similar to each other if they have the same shape as well as the ratio of their corresponding sides being equal to each other.

Since quadrilateral BCDE is similar to quadrilateral FGHI, hence the ratio of their corresponding sides is equal. Hence:

[tex]\frac{FG}{BC}= \frac{HI}{DE} \\\\substituting:\\\\\frac{FG}{8.3} =\frac{50}{11} \\\\FG=\frac{50*8.3}{11}\\\\FG=37.7\ to \ the\ nearest\ tenth[/tex]

Clara drove 792 miles. Clara's car used 20 gallon of gas. How many miles per gallon did Clara's car get?

Answers

Answer: Not rounded: 39.6 Rounded: 40

Step-by-step explanation:

A family eats at a restaurant. The bill was $54. The family leaves a tip and spends $60 total. How much was the tip as a perentage of the bill? (round to the nearest whole percent)

Answers

Answer:

11%

Step-by-step explanation:

60 - 54 = $6 The tip is $6 since they were meant to pay $54 but gave $6 extra.

The bill is $54.

6/54 = 0.1 recurring

0.1 × 100 = 11.1%

11% is the percentage.

I hope that helps!! ^-^

7.
Would the following angle measures form a triangle?
70°, 80°, 45°

a) No
I b) Yes

Answers

The answer would be B :)

Answer:

A

Step-by-step explanation:

The measure of the angles of a triangle = 180

70 + 80 + 45

150 + 45

195 degrees

195 > 180

So, A) No

Can someone plz help me with this the answer choices are at the bottom plz I beg u

Answers

formula is v=1/3Bh
shape of base is rectangle/parallelogram
solution: 192cm^3
sorry if it’s wrong , been a while since i did it

Answer:

Step-by-step explanation:

Which of the following is the reciprocal of 1/5 ?
answers
5
1/5 5/5 1

Answers

Answer:

5

Step-by-step explanation:

A reciprocal is the inverse of a fraction.

To find it just flip the numerator and denominator.

1/5 becomes 5/1, or 5.

The calculated reciprocal of the number 1/5 is 5

How to determine the reciprocal of the number

From the question, we have the following parameters that can be used in our computation:

Number = 1/5

By definition, the reciprocal of a number x is represebted as

reciprocal = 1/x

In this case,

x = 1/5

Substitute the known values in the above equation, so, we have the following representation

reciprocal = 1/(1/5)

Evaluate

reciprocal = 5

Hence, the reciprocal is 5

Read more about expression at

https://brainly.com/question/30492964

#SPJ6

PLEASE HELP PLEASE ASAP​

Answers

Answer:

60ft

Step-by-step explanation:

multiply all the #

17x31=? lol ill give 20 dollarsto who ever gets this first

Answers

527 is the answer hope it helps

A paved walkway around a garden has an outer diameter of 80 ft and an inner diameter of 40 ft. A diagram is shown below.
What is the approximate area of the paved walkway?

Answers

Given:

Outer diameter = D = 80 ftInner diameter = d = 40 ft

So,

Outer radius = R = D/2

=> R = (80 ft)/2

=> R = 40 ft

Inner radius = r = d/2

=> r = (40 ft)/2

=> r = 20 ft

Area of paved pathway = πR² - πr²

= π(R² - r²)

= π(R + r)(R - r)

= π(40 + 20)(40 - 20) ft²

= π(60)(20) ft²

= 3.14 * 1200 ft²

= 3768 ft²

help please! (no links)

Answers

EZ is 24.5
Happy is 25

Please help me with those questions please

Answers

Answer:

7.5

35.2

1.5

20

Step-by-step explanation:

1. vertical angles are equal

(2x+17)=(4x+2)

15= 2x

x= 7.5

2. adjacent angles equal 180

(2m+8)+(3m-4)= 180

5m+4= 180

5m= 176

m= 35.2

3. (30s+5)=(20s+20)

10s= 15

s=1.5

4. 4p+5p=180

9p=180

p=20

sorry that took so long.  I was babysitting lol

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