Mathematics Middle School

When does expanding and simplifying a(b + c) result in a positive value for ac?

Answers

Answer 1

Answer:

Step-by-step explanation:(ab + bc)(ab + bc)

Simplifying

(ab + bc)(ab + bc)

Multiply (ab + bc) * (ab + bc)

(ab(ab + bc) + bc(ab + bc))

((ab * ab + bc * ab) + bc(ab + bc))

Reorder the terms:

((ab2c + a2b2) + bc(ab + bc))

((ab2c + a2b2) + bc(ab + bc))

(ab2c + a2b2 + (ab * bc + bc * bc))

(ab2c + a2b2 + (ab2c + b2c2))

Reorder the terms:

(ab2c + ab2c + a2b2 + b2c2)

Combine like terms: ab2c + ab2c = 2ab2c

(2ab2c + a2b2 + b2c2)

Related Questions

Can someone please help me? It would mean a lot. Tysm!! Bye!! Link below.

Answers

Answer:

Step-by-step explanation:

Can someone plzzzz help meeeee!!!

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Answer:

No

Step-by-step explanation:

if x is 2 and y is 3 then 3=-4(2) - (-5) wouldn't be true

-4 x 2 is -8 then subtract -5 and you get -3 not +3

Can someone plz help me with this one problem!!! :)

Answers

Answer:

Yes

Step-by-step explanation:

the first coordinate is x and the second is y so that makes the equation 5=5 which is true

yes ! both values are the same so (5,5) makes y = x true

Can someone plz help me with this one problem!!!

Answers

Answer:

yes

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

I need to write 20 characters so

What percent of the buses took between 27 and 30 minutes?

Answers

Answer:

Step-by-step explanation:

is there other options to the question? theres not a lot of info...

Answer:

50%

Step-by-step explanation:

The manager of a store increases the price of a popular product by 5%. Let t be the original price of the product. The new price is t + 0.05t. Find an expression equivalent to t + 0.05t. If the original price was $24, what is the new price?

Answers

The equivalent expression is 1.05t and then 24 x 0.05 equals 1.2 so 25.2
The new price would be $25.2 so $25 and 20 cents!!

Hell which one is true

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Answer:

A

Step-by-step explanation:

i did this in class

Which are true about the pyramid? Check all that apply.
The base of the pyramid is a square with four sides, each measuring 756 feet.
The slant height of the pyramid is 612 feet.
The slant height of the pyramid is 756 feet.
All four triangular faces are congruent.
All four triangular faces are not congruent.
The pyramid has four lateral faces.

Answers

Answer:

The answers are A, B, D, and F

Step-by-step explanation:

Correct on edge 2021!

Answer:

A B D F

Step-by-step explanation:

Just got it right on edge :)

In the figure, line m is parallel to line n. If the measure of ∠1 is 117º, what is the measure, in degrees, of ∠5?

Answers

Answer:

117º.

Step-by-step explanation:

Angle 5 is a corresponding angle to angle 1, so therefore if angle 1 is 117º, angle 5 is 117º.

Hope this helps!

The measure of ∠5 is 117º.

Missy is 1.5 meters tall and cast a 9-meter shadow. How long is the shadow of a 6-meter flagpole beside.

A. 1 meter. B. 3 meters

C. 9 meters D. 36 meters

Answers

Answer:

36 meters

Step-by-step explanation:

9 divided by 3 is 3

That means for every 1 meters is 6 meters shadow wise because 3 meters equal to .5 meters.

6 meters of the pole times 6 meters per one real meter equals 36 shadow meters.

Hope that helped, if it did please give me the brainliest.

D) 36M this is because 9 / 1.5 = 6 so you do 6 x 6 which = 36

Brittany and Jake want to race each other. Brittany knows she is faster, so she gives Jake a 25-foot head start. From there, Jake runs 15 feet per minute. Brittany runs 25 feet per minute. How many minutes should their race be in order for them to tie? How far will they run when they finish the race in a tie? Use equations to solve.

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15 because that is all that I got
15 that’s all I got <3

Write two expressions to show w increased by 4. Then, draw models to prove that both expressions represent the same thing.

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Answer:Answer:

w + 4 and 4 + w

Step-by-step explanation:

Given phrase,

w is increased by 4,

That is, w + 4

By the commutative property of addition,

The expression would be,

4 + w

For drawing a model that shows w + 4

Take two boxes in which first shows w and second shows 4 and add them,

Similarly, for showing 4 + w, take first box that shows 4 and second box that shows w then add them.

Step-by-step explanation:

Answer:

w+4 and 4+w both are the same because of the commutative property

Step-by-step explanation:

since it says increased it should be addition so I added w + 4

28in.=_____ ft ‍ ‍ ‍ ‍ ‍ ‍

Answers

Step-by-step explanation:

2 feet =4 inche

y=28 inche

2×28 feet inche=4y inche

56 ft in= 4y in

56÷4 ft =y in

14ft =28 in

What is the volume of the pyramid to the nearest whole unit? 7 yd. 9 yd. 7 yd.

Answers

Answer:V=lwh

3=7·9·7

3=147

Step-by-step explanation:

PLZZZ ANSWER FAST U WILL GET BRAINLIEST A basket contains seven apples and eight peaches. You randomly select one piece of fruit and eat it. Then you randomly select another piece of fruit. The first piece of fruit is an apple and the second piece is a peach.
4/15, 1/12, 1/27, 1/28

Answers

1/12? Tell me if that’s right I’m not that good at it but I’m pretty sure it’s 1/12
I think it’s 4/15 but I’m not sure because if you add 7 and 8 it equals 15

Can someone plz help me with this one problem!!!

Answers

Answer:

sure you can have my mother fudge recipe, if you give me your recipe for macaroni and cheese.

Answer:

i would say after  recipe for mother's fudge

Step-by-step explanat

What is the missing factor in the following equation 5/3 X =1​

Answers

Answer:

subtraction

Step-by-step explanation:

Answer:

1x5/3=x

5/3=x

Step-by-step explanation:

Help me please I will give brainliest

Answers

Answer:

What grade is this? I may have an answer.

Step-by-step explanation:

A circle is cut from a square piece of cloth, as shown:

A square, one side labeled as 36 inches, has a circle inside it. The circle touches all the sides of the square. The portion of the square outside the circle is shaded.
How many square inches of cloth are cut from the square?

(π = 3.14)

A - 1,017.36 in2
B - 1,182.96 in2
C - 1,276.00 in2
D - 1,489.24 in2

Answers

Answer:

area of circle = πr² /πd

find the area of the circle then minus it from the area of the square ,

36x36= 1296

πd =3.14 x 36 = 113.04

1296 - 113.04 = 1182.96

The correct answer is B

Can someone plz help me I’m guessing it’s yes

Answers

Answer:

Yes, Yes it is

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

can anyone help with any? (asap please)

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Answer:

Number 3 is 11. 2x is 22 and 3x is 33.

Step-by-step explanation:

HELPPP PLEASE!!
Answer choices
A.36
B.126
C.66

Answers

Do 90 + (2x - 6) + (60 - x) = 180
You can do this!
The answer is a.36 you do 90+60-x+2x-6=180

A school chorus has 90 sixth grade students and 75 seventh grade students. The music director wants to make groups of performers, with the same combination of sixth and seventh grade students in each group. If the largest number of groups are formed, how many students of each grade level would be in each group?

Answers

The first choice is right, the largest group you can make is made of 18 sixth graders and 15 seventh graders

PLEASE HELPP! WILL GIVE BRAINLIEST PLEASE DONT ANSWER IF YOU DONT KNOW
Theo mows a lawn. After working for 1 3/5 hours, he has mowed 7/9 of the lawn. If he continues mowing at the same rate, can he finish mowing the lawn in 2 hours? Explain.

Answers

Answer:

Yes He will

Step-by-step explanation:

You convert the 7/9 and the 1 3/5 into even so that will be 35/45 for the 7/9 and 1 27/45. Then you keep going up for them both so it will now be 40/45 and 1/ 36/45 and one more time and it will be an even 45/45 and 2. So yes. Sorry if it is to advanced.

Can you guys please help me im confused

Answers

Answer:

The bullet point between the numbers means times in this case, in some other cases it would mean "and" also known as plus. Therefore, the correct answer is the second one.

Step-by-step explanation:

In each half unit cube there is 6 cubes. ⇒

6 + 6 + 6 = 18 ⇒

But, this is not one of the options.⇒

So, we have to make the equation a bit different to solve it. ⇒

2 x 3 x 2, is the first option. ⇒

This is incorrect, as it equals 12. ⇒

The sum we are looking for is 18. ⇒

The second answer is 2 x 3 x 3. ⇒

This equals 18, we have found the correct answer. ⇒

So, there are a total of 3 half-unit cubes. ⇒

There are a total of 18 cubes. ⇒

I hope this helps!

The second option is the answer.

Can someone please help me? It would mean a lot. Tysm!! Bye!! Link below.

Answers

Answer:

what are the options for the first part

Step-by-step explanation:

Simplify 6.92 degress. Help please

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Answer:

7

Step-by-step explanation:

7. I Believe this is correct

Please help me I don't understand :(

Answers

Answer:

Answer is below

Step-by-step explanation:

It's absolute value:

3. |-5| = 5

4. |20| - |-3| = 17

5. |-16| + |-12| = 28

Hope this helps

|-5|=5
|20|-|-3|=17
|-16|-|-12|=4

-2.6c - 2.8c help again

Answers

Answer:

=−5.4c

Step-by-step explanation:

=−2.6c+−2.8c

Combine Like Terms:

=−2.6c+−2.8c

=(−2.6c+−2.8c)

=−5.4c

Can someone plz help me with this!!!

Answers

Answer:

-61

Step-by-step explanation:

think with positives, the number in the tens place keeps increasing by 1, and (-)51 was last. 5+1=6

since it’s going by 10, the answer would be -61
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