find the value of 2xy+3yz-xyz, when x=2, y=-2, z=4​

Answer:

6w + 2a = 28

Step-by-step explanation:

the expression given, 6w + 2a, contains no variable h, so it's best to just ignore that h = 5.

first, plug in the values for w and a. you can do this in whatever order you want, but i'll start with w for this example.

plug in 4 for w.

6w + 2a

6(4) + 2a

now plug in 2 for a.

6(4) + 2a

6(4) + 2(2)

after plugging in the values, your expression is 6(4) + 2(2).

all that's left is to simplify. again, this can be done in whatever order you prefer, but i'm going to start with 6(4).

6(4) + 2(2)

24 + 2(2)

continue simplifying by multiplying 2(2).

24 + 2(2)

24 + 4

now add 24 + 4.

24 + 4 = 28

so, when w = 4 and a = 2, 6w + 2a = 28.

you can check the answer by plugging those values for a and w back into the completed equation.

6w + 2a = 28

6(4) + 2(2) = 28

24 + 4 = 28

28 = 28

since both sides of the equation are equal, that means that your answer of 28 is correct! :)

i hope this helps! have a great day <3

Answer:

-9

Step-by-step explanation:

Khan Academy huh? Well, the answer's -9.

-7 = -9 + 2

Hope that helps!

Answer:

10.5 cm

Step-by-step explanation:

took the test

Answer:

61+x=180

x=180-61

x=119

y+39=90

y=90-39

y=51

Answer:

(a)119°

(b)51°

Step-by-step explanation:

(a)Subtract the given angle from 180.

=180°-61°

=119° (The supplement of 61° is 119°)

(b)Subtract the given angle from 90.

=90°-39°

=51° (The complement of 39° is 51°)

It is 9 fr 100% pls trust me

The area of the circle {1} is 9 times greater than circle {2}.

Area is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write -

V = ∫∫F(x, y) dx dy

Given is to find how many times greater is the area of circle 1 than the area of circle 2 if circle ones radius is 9 and circle twos radius is 3.

We can write the areas of both the circles as -

A{Ο} = πR²

A{Ο1} = π x 9 x 9

A{Ο2} = π x 3 x 3

We can write -

A{Ο1} / A{Ο2} = {π x 9 x 9} / {π x 3 x 3}

A{Ο1} / A{Ο2} = 9

A{Ο1} = 9A{Ο2}

Therefore, the area of the circle {1} is 9 times greater than circle {2}.

To solve more questions on areas, visit the link-

https://brainly.com/question/29213222

#SPJ2

Answer:

7/2= 8.5 so it can be bigger then 1/2 or anything under 8.5

Step-by-step explanation:

Answer:

8.1875

Step-by-step explanation:

Answer:

d/ ( a+b) = x

Step-by-step explanation:

d=ax+bx

Factor out x

d = x( a+b)

Divide each side by (a+b)

d/ ( a+b) = x (a+b)/ (a+b)

d/ ( a+b) = x

Answer:

$0.50/cm

Step-by-step explanation:

Answer:

.5(1.5A)

Step-by-step explanation:

Increasing by 50% is the same as multiplying by 1.5. Decreasing by 50% is the same as multiplying by .5. Multiply by 1.5 first then surround with parentheses and multiply by .5.

Answer:

.5(1.5A)

Step-by-step explanation:

Increasing by 50% is the same as multiplying by 1.5. Decreasing by 50% is the same as multiplying by .5. Multiply by 1.5 first then surround with parentheses and multiply by .5.

Answer:

Slope of the line is 3

Y-intercept is (3/2) three-halves

Explanation:

I saw this also on Brainly! Hope this helps! :)

Answer:

A

Step-by-step explanation:

I am pretty sure this is right and I hope this helps

Answer:

B. the absolute value of -15

Step-by-step explanation:

Ok so,

lets rewrite them for it to make sense

| 12 |  = 12

| - 15 | = 15

so now the question is "which is larger 12 or 15?" and the answer is 15 obvs lol

" | " = means absolute value

hope this helps have a good day!

respuesta : 8 espero tesirba

Answer:

[tex]y = 2000(1.05)^{36[/tex]

Step-by-step explanation:

Given

[tex]a = 2000[/tex] -- Initial population

[tex]r = 5\%[/tex] --- Rate (monthly)

Required

Determine the population in 3 years

The question shows an exponential distribution and the final population will be calculated using:

[tex]y = a(1 + r)^x[/tex]

Where x is the number of months.

[tex]x = 3\ years[/tex]

[tex]x = 3* 12\ months[/tex]

[tex]x = 36[/tex]

So, we have:

[tex]y = 2000(1 + 5\%)^{36[/tex]

Convert % to decimal

[tex]y = 2000(1 + 0.05)^{36[/tex]

[tex]y = 2000(1.05)^{36[/tex]

(c) is correct

Answer:

Step-by-step explanation:

A.  f(8) = 11

B.  f(x) = 7, so x = 3

Answer:

1/6 square miles

Step-by-step explanation:

lw=a

1*1/6=1/6

Answer:

1/6 square mlies

Step-by-step explanation:

Answer:

18%

Step-by-step explanation:

First find the total. 72+328=400

Next do 72/400=0.18

Convert to percent by multiplying by 100

18%

Hello!

So, I didn’t know if you wanted me to put them from (Least to Greatest) or (Greatest to Least).. So, I did both.

(LEAST TO GREATEST):

3/2, 1 8/11, -28/5, -5.2

________________________________

(GREATEST TO LEAST):

-5.2, -28/5, 1 8/11, 3/2

________________________________

There you go, I hope this helps! Have a great day/night and stay safe! :)

Just pick the one that you were suppose to find the answer for. :)

well just look at the tens digit and see if it is bigger or smaller than 5, in this case 8>5

so the answer is 6,615,000, it is 000 because 9+1 became a 10

Answer:

Step-by-step explanation:

If you mean log₅(x) = 4, take the antilog₅ of both sides.

x = 5⁴

Answer:

Step-by-step explanation:

100-74-26

26%->52

100%->52÷26×100

             = 200

Answer:

Part A:  No Solution

Part B:  Distributive Property

Step-by-step explanation:

4x + 2x - 6 = 6x - 11

6x - 6 = 6x - 11

-6 ≠ -11

No Solution

Answer:

Part A. Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Part B. Distributive Property

Step-by-step explanation:

Simplifying

4x + 2(x + -3) = 4x + 2x + -11

Reorder the terms:

4x + 2(-3 + x) = 4x + 2x + -11

4x + (-3 * 2 + x * 2) = 4x + 2x + -11

4x + (-6 + 2x) = 4x + 2x + -11

Reorder the terms:

-6 + 4x + 2x = 4x + 2x + -11

Combine like terms: 4x + 2x = 6x

-6 + 6x = 4x + 2x + -11

Reorder the terms:

-6 + 6x = -11 + 4x + 2x

Combine like terms: 4x + 2x = 6x

-6 + 6x = -11 + 6x

Add '-6x' to each side of the equation.

-6 + 6x + -6x = -11 + 6x + -6x

Combine like terms: 6x + -6x = 0

-6 + 0 = -11 + 6x + -6x

-6 = -11 + 6x + -6x

Combine like terms: 6x + -6x = 0

-6 = -11 + 0

-6 = -11

Solving

-6 = -11

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Answer:

the time Ari spent to walk is

[tex]1 \frac{3}{4} \div 1 \frac{1}{4} = 1.4(h)[/tex]

the time Beth spent to walk is

[tex]1 \frac{1}{2} \div 1 \frac{1}{8} = 1.(3)(h)[/tex]

the time Cathy spent to walk is 1h21' = 1.35(h)

so the time Ari spent > Cathy > Beth

=> list: Beth, Cathy, Ari

Answer:

6ft

Step-by-step explanation:

Lets x = the width of the path the surrounding path will add 2x to the pool dimension,therefore over all dimesion: (2x+40) by (2x+60) the overall perimeter (2x + 40) + 2(2x+60) = 248 Simplify divide by 2, result (2x+40) +(2x+60) = 124

Combine like terms 2x + 2x +40 +60 =124

4x + 100 = 124

4x=124 = 100

4x=24

x=24/4

x= 6ft is the width of the path

check this by finding the perimeter with these values; 2x = 12 ft

2 ( 12 + 40 ) + 2( 12 +60 )

2( 52 + 2(72)

104 + 144 = 248; confirms our solution of x= 6 ft

Answer: C.concurrent power

Step-by-step explanation: Such powers are called concurrent powers. These include the power to tax, spend, and borrow money. State governments operate their own judicial systems, charter corporations, provide public education, and regulate property rights.

Answer:

First option

Step-by-step explanation:

Biotechnology contains genetic manipulation and agricultural purposes, so growing crops in areas they usually do not grow would be a positive use of biotechnology.

I hope you get the problem right.

Answer:

my anm,e is andrew and i dont have a job :/

Step-by-step explanation:

Answer:  

x + y ≤ 5

14x + 18y ≥ 100

Step-by-step explanation:

just trust me

never trust strangers

Answer:

y = -5/3x - 5

Step-by-step explanation:

convert -3x + 5y = -1 to slope-intercept form:

5y = 3x - 1

y = 3/5x - 1/5

slope of a line perpendicular to the above equation would be -5/3

y = mx + b

-5 = -5/3(0) + b

b = -5

y = -5/3x - 5