If a, b and care nonzero real numbers, which expression is equivalent to a (b - c) - b(a - c)?
ac - bc
-ac + bc
2ab - ac- bc
2ab - ac + bc

Answers

Answer 1
dang i’m not sure but make sure to show your work

Related Questions

Carpet for one office costs $210. If the carpet sells for $8.75 per
square yard, how many square yards of carpet are needed for
one office?

Answers

Answer:

a.

Let x be the number of square yards of carpeting for which the total cost charged by the two companies will be the same.

We have an expression for the total cost of Country Carpets:

($22/ 1 yd^2)* (x yd^2) + $100

= $22*x+ $100

or 22x+ 100

We also have another expression for the total cost of City Carpets:

($25/ 1 yd^2)* (x yd^2)+ $70

= $25*x+ $70

or 25x+ 70

Now set the two expressions to be equal:

22x+ 100= 25x+ 70

⇒ 100- 70= 25x -22x

⇒ 30= 3x

⇒ 30/3= x

⇒ 10= x

The final answer for a is 10 square yards of carpeting~

b.

Let's assume that Mr. Shu wants to install carpeting for 1 square yard.

Country Carpets: $22*1+ $100= $122

City Carpets: $25*1+ $70= $95

Therefore, Mr. Shu will be likely to choose City Carpets if he wants to install carpeting for 1 square yard.

Now let's try x=11 (square yard):

Country Carpets= $22*11+ $100= $342

City Carpets= $25*11+ $70= $345

Therefore, Mr. Shu will be likely to choose Country Carpets if he wants to install carpeting for 11 square yard.

If you paid really close attention, you would notice that the price of City Carpets will be cheaper than the other when x is >0 and <10. At x=10, the price is equal. When x is >10, the price of Country Carpets will be cheaper than the other one.

So it depends:

If x were >0 and <10, Mr. Shu would be likely to choose City Carpets.

If x were 10, Mr. Shu could choose either Country Carpets or City Carpets.

If x were > 10, Mr. Shu would be likely to choose Country Carpets.

Hope this helps~

Step-by-step explanation:

Consider points R, S, and T.

Point S is in the middle. Point R is below and to the left of point S. Point T is below and to the right of point S.

Which statement is true about the geometric figure that can contain these points?

No line can be drawn through any pair of the points.
One line can be drawn through all three points.
One plane can be drawn so it contains all three points.
Two planes can be drawn so that each one contains all three points.

Answers

Answer:

one plane can be drawn so it contains all three points for this question.

Step-by-step explanation:

Find the the area of a right triangle if 8cm and 12cm are a leg and a hypotenuse. Round to the nearest hundredth.

Answers

Answer:

Step-by-step explanation:

The area of a triangle is

A=bh/2 where b=base and h=height. So we first have to solve for h

8^2+h^2=12^2

h^2=12^2-8^2

h^2=144-64

h^2=80

h=(80)^(1/2), now we can find the area

A=8(80^(1/2))/2

A=4(80^(1/2)

A=35.78cm

Which is an advantage of purchasing and owning a home?

Answers

Answer:

You don't have to pay rent every month

Step-by-step explanation:

The advantage of purchasing and owning a home are:

- Building equity,

- Stability

- Investment

- Pride of ownership

- Tax benefits

What is home?

A home is a place where a person or a family lives, typically a house or an apartment.

It is a place of residence and refuge, where individuals or families can feel secure and comfortable.

We have,

There are several advantages of purchasing and owning a home, including:

Building equity: When you make mortgage payments, you are building equity in your home. This means that over time, you own more and more of your home and may be able to use the equity to your advantage.

Stability: Owning a home provides a stable living situation since you are not subject to rent increases or the possibility of eviction.

Investment: A home can be a good long-term investment as it generally appreciates in value over time. This means that if you sell your home in the future, you may be able to sell it for more than you paid for it.

Pride of ownership: Owning a home can give you a sense of pride and accomplishment, and you have the freedom to make changes and improvements to the property as you see fit.

Tax benefits: Homeowners may be able to deduct mortgage interest and property taxes on their income tax returns, which can result in significant savings.

Thus,

Several advantages of purchasing and owning a home are given above.

Learn more about home here:

https://brainly.com/question/30490667

#SPJ2

A colony of 1,000 bacteria doubles in size every 18 minutes. What will the population be 54 minutes from now? (show steps) - will give brainliest

Answers

Answer:

3000.24

Step-by-step explanation:

We know that every 18 min, the colony grows 1000, so to make it easy, the way i do it is that i find out how much  it grows per min

1000 / 18 = 55.56

Then, to find out how big it will be in 54 min, we just multiply

55.56 x 54 = 3000.24

So that will be the size of the colony in 54 min. I hope this helps :)

do any of you guys know this please i need helppp!!

Answers

the third one
5/6 is the answer

The answer is 5/6 i have to say it right or a bot deletes my answer

Jan's flower garden has only daffodils and tulips
in it. There are 15 daffodils and 12 tulips. What
is the ratio of the number of tulips to the total
number of flowers in Jan's garden?
A.5:4
B. 5:9
C. 4:5
D. 4:9

Answers

Answer:

D. 4:9

Step-by-step explanation:

12 tulips to Toltal number of flowers

12+15=27 so,

12:27 simplify it and you get

4:9

Maria rents a skating rink for a party. She p. 59.75 for the rental fee
and $2.50 per hour. Which expression shows the total cost Maria pays to
rent the skating rink for h hours?
A 59.75 +2.50h
B (59.75 +2.50)
© 59.75h + 2.50
D 59.75 -2.50h

Answers

c is the correct answer.

What is the constant of proportionality (k) for the table below?

Answers

c) k=0.00025 gallon per sq feet

you have to divide x by y
For Example: 0.5/2000=0.00025
0.75/3000=0.00025
(etc.

Suppose that tickets for a rock concert cost $5 for the first ticket, $10 for the second ticket, $15 for the third ticket, and so on. If you bought 10 tickets, how much would you pay altogether for all 10 tickets?

Answers

Answer:

275$

Step-by-step explanation:

Hi, the answer is $50 because if Each ticket costs $5 and your going to buy 10 then you hv to multiply 5x10= 50.

which statement is true?​

Answers

Answer:

9 < √91 < 10

Step-by-step explanation:

just square everything

Simplify the following equation. Explain each step and write the property used. 3x+2x-3+10=27

Answers

Answer:

x=4

Step-by-step explanation:

1. Add like terms: 5x+7=27

2. Use the subtraction property on both sides to get rid of 7: 5x=20

3. Divide 5 on both sides to get x by itself: x=4

It’s a math question about pumpkins look at image

Answers

Answer:

A :)

Step-by-step explanation:

in the question it says "the price (y) in dollars" and before says "the weight (x) in ounces

Answer:

A

Step-by-step explanation:

I think

In a lab experiment, 50 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 20 hours. How many bacteria would there be after 8 hours, to the nearest whole number?​

Answers

Answer:

y=65.975395539

y≈66

help me
y+5=2(x-4)
❗❗❗❗❗❗❗❗❗❗​

Answers

13 is what i got for the answer on mine

A box is to be wrapped in a shiny pink decorative paper. The box is o inches long, 5 inches wide, and 4 Inches high. What is the minimum amount of decorative paper needed to cover the box? ​

Answers

Answer:

20 inches

Step-by-step explanation:

Because the volume of the box is 20.

Correct me if im wrong and please wait for more responses if needed please.

I need help with geometry

Answers

sin x = 12 / 15
sin x = 0.8
x = sin ^ -1 (0.8) = 53°
Sin X = 12/15 hope this helps you

In IJK, the measure of K=90°, KI = 8.1 feet, and JK = 1.9 feet. Find the measure of
J to the nearest degree.

Answers

Answer:

77

Step-by-step explanation:

How to solve this geometry?
Step by step solution please.

Answers

This is a relatively complex problem and it took me a good 20 minutes to solve, I included a sketch I made myself while im solving this problem hope it helps with the explanation. (the dotted lines are my drawings, also I labeled the points just look at my graph)

Now to find <x, we can use the exterior angles theorem a couple of times.

<x=<p+<AGE

<x=30 degrees + <AGE

Now use the theorem again to find <AGE

<AGE=<q+<BIG

Now use substitution for <q and for <AGE

<x=30 degrees+60 degrees+ <BIG

We put this to the side for now and try solve for <CHD which is not very difficult

<CHD=180-45-20=115

We can also clearly figure out <HFI using vertical angles theorem.

<HFI=<Y

Because they all form a triangle we can conclude that <y+<BIG=180 degrees-<FHI= 180-115=65 degrees

substitution again

<x+<y=30+60+<BIG+<HFI (remember <HFI = <y vertical angles theorem)

<x+<y=30+60+65 (remember how we did before these 2 angles adds up to 65?)

<x+<y=155 degrees

Now please don't hate me on this, I'm sure there is more efficient ways to explain this problem, this is just my way from trial and error.

Tip for next time you are stuck on a geometry problem, don't be afraid to draw the graph again on paper and add lines to it!

You won't get everything perfect the first time you try but the more you practice the more comfortable you are with these problems, Hope my explanation helped!

**Just a note would you mind telling me where you got this problem form, its pretty challenging :)

O 3x=4-y
O y=3x+4
Question 9
Which of the following is a point on the equation for 3x + y = 4.

Answers

it’s a because when you flip it will be A

it says Andre starts with $100 in his savings account and adds $5 per week Elena starts with $10 in her savings account and adds $20 each week after 4 weeks who has more money in their savings account ​

Answers

Answer:

Andre

Step-by-step explanation:

So for Andre you would do 5*4=20 and 100 + 20 = 120.

And Elena you would do 20*4=80 then 80 + 10 = 90.

Hope this helps!!

Factor

x^2-6x-16


pls help i dont get it

Answers

(x - 8)(x + 2) i hope this helpsbhhhhh

Write an
explicit formula for an, the nth term of the sequence 1, 3, 9, ....

Answers

Answer:

an=a+(n-1)d

Step-by-step explanation:

1 3 9 ....

is the answer

X / 2 = 7 find what x represents

Answers

Answer:

x = 14

Step-by-step explanation:

X / 2 = 7

Multiply by 2 to isolate x.

x = 7 * 2

x = 14

What is the image of the point (9,7) after a rotation of 180 counterclockwise about the origin

Answers

you would just negate each value, so it would be (-9,-7). you can also double check on a calculator

The image of the point (9,7) after a rotation of 180 counterclockwise about the origin is at (-9, -7)

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, translation, reflection and dilation.

Rotation of a point A(x, y) 180 counterclockwise about the origin produces an image at A'(-x, -y).

Hence, the image of the point (9,7) after a rotation of 180 counterclockwise about the origin is at (-9, -7)

Find out more at: https://brainly.com/question/16825824

Three students took a math test.
• Liam completed the test in 2/4 hours
• Sarah completed the test in 1/2 of Liam's time
• Emma completed the test in 4/3 of Sarah's time

How long did it take for Sarah to complete the math test?

Answers

Answer:

20 minutes

Step-by-step explanation:

Liam completed the test in 1/2 of an hour. One half of that, Sarah's time, is 1/4.

Hence, you don't even have to solve for Emma's time, Sarah took twenty minutes to complete the test.

Hope this helps :)

Stay cold,

Brook

Question 10 (2 points)
Find the missing length.
a
2.1 cm
2.9 cm
I NEED HELPPPP PLSSSS ITS FOR A MASTERY TEST PLSSSS HELPPPP

Answers

Answer:

a = 2

Step-by-step explanation:

To find the missing length we can use the Pythagorean theorem. Also, because it's a right triangle it makes it the perfect candidate!

The Pythagorean Theorem states:

a^2 + b^2 = c^2

Next, we substitute the letters with our given numbers (keep in mind that c is the hypotenuse which is the side facing the right angle)

a^2 + 2.1^2 = 2.9^2

Finally, we solve our equation (hint: use the calculator if needed)

a^2 = 4 (your answer is not final yet. You have to take the square root of both numbers)

a = 2 (Now that's the final answer!)

Please help me with this

Answers

ANSWER
x= 46

EXPLANATION
To solve this problem you need to remember that a straight line is 180°. This figure is basically a straight line split in two, so 134°+x=180°. You can also subtract 134 from 180 to get 46.

what is the value of the expression if n=15

Answers

what’s the expression ?

RELIGION
how does the Torah affect Jewish life today !!!!!!!
i will give brainlisttttt

Answers

Answer:

the Torah plays a big part in the lives of Jews today as it is believed to be the word of God. All Jews use the Torah to help guide them in their lives, but some Jews use the Torah more strictly than others. For example, some Orthodox Jews believe that it is important to follow every single rule in the Torah. However, Reform Jews tend to follow the rules they feel are most important and disregard some rules they see as outdated.

The significance of the Torah is seen in many ways:

It is read aloud weekly at the synagogue. It takes a year to recite the whole Torah.

The festival of Shavout celebrates God’s revelation of the Torah to Moses.

The commandments in the Torah shape the way that Jews live their lives today.

Step-by-step explanation:

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