Answers
Answer:
1. 2m^2-2n^2
Step-by-step explanation:
1. (m-n)(m^2+mn+n^2)
m^2=m
n^2=n
=(m-n)(m+mn+n)=(m-n)(2m2n)
Multiple
=2m^2-2n^2
Related Questions
is this right? Whats the answer to C?
Answers
Answer:
a. Multiplication property of equality
b. Distributive property
c. addition property of equality
Step-by-step explanation:
The first one is wrong because you are multiplying the 2 on both sides to make it equal. There was nothing that they substituted for.
The second one will be the distributive property not the subtraction property of equality. They distributed the 2 into the [tex]\frac{1}{2}x[/tex] and the [tex]-5[/tex]. So that clears up that this step was the distributive property.
This one will be the addition property of equality because when you have a negative number you do the inverse so they added the 10 on both sides. Therefore it's the addition property of equality.
(3,8) (9,0) find the slope
Answers
Back in ye olden days, cell phone companies charged for texting. A cell phone company charges 10 cents per text message if a customer sends up to 100 messages per month, 8 cents for 101-200 messages, and 6 cents for 201-300 messages. If today is the last day of the month, and you've sent 200 texts, is it worth it to send 1 more text message?
Answers
Answer: It is worth it.
Step-by-step explanation:
If a customer sends 101 - 200 texts in a month, they get charged 8 cents per text.
If they send 201 - 300, they get charged 6 cents per month.
If you have sent 200 texts, your charge for the month will therefore be:
= 200 * 8
= $16.00
If you send the 201th text, you will be charged 6 cents per text. Total charge would be:
= 201 * 6
= $12.06
If you send 1 more text, it will be worth it because you will save:
= 16 - 12.06
= $3.94
what are the coordinates of D’ after a dilation with a scale factor of 2?
Answers
Answer:
4,-2 that is what it should be
36 ft
27 ft
What is the length of the hypotenuse?
C
feet
Answers
1296 + 729 = C^2
2025 = C^2
C = 45
45 feet is the length of the hypotenuse
Have a great day!!
Hi , I have geometric question
What is x angel ?
Answers
The function G(t) = 2t represents the number of guitar lessons, G(t) you can complete in T months. How many guitar lessons can you complete in seven months
Answers
Answer:
14 lessons can be completed
Step-by-step explanation:
From the question, to get the number of lessons that can be completed, we simply multiply the number of months by 2
Thus, we have that;
G(2) = 2 * 7
G(2) = 14 lessons
Refer to parallelogram ABCD to answer to following questions.
Do the diagonals bisect each other? Justify your answer.
Yes; The diagonals are not congruent.
Yes; AK CK and DK. BK
No; AK CK and DKBK
No; The diagonals are not congruent.
Answers
Answer:
No: The diagonals are not congruent.
answer i will give you 40 points
Answers
Answer:
okay wheres the question
Step-by-step explanation:
sure whats your question.
I don't see any questions here?
There is some ham in refrigerator. Tyrisha uses 3/4 of a pound to make sandwiches and Jacquel uses 7/8 of a pound to make sandwiches. If there is now 2 1/2 pounds of ham left over, how much ham was there before Tyrisha and Jacquel used some?
Answers
Answer:
I NEED THIS ANSWER TOO...
ANYONE HELP ME
Pls help and show workings due ASAP
Answers
29 + 5 = 34/2 = 17
7 - 15 = -8/2 = -4
70 points! Will mark brainliest! What is 2sqrt5 rounded to the nearest tenth? Random answers will be reported
Answers
Answer:
4.5
Step-by-step explanation:
I just use a calculator for this.
2 sqrt 5 = 4.4721
If we round off to the nearest tenth, it would be 4.5.
Answer:
Solution given:
2√5 =4.5 is your answer.
Margo can purchase tile at a store for $0.99 per tile and rent a tile saw for $18. At another store she can
borrow the tile saw for free if she buys tiles there for $1.89 per tile. How many tiles must she buy for the
cost to be the same at both stores?
Answers
Answer:
She Can Buy 9 tiles before it goes over the price of the other store
Step-by-step explanation:
I multiplied 1.89 times 9 and I got the answer
jenny planned to solve 2/3 of her homework problems on saturday. however she got home late and had less time than planned. as a result she solved only 7/8 of the problems she planned to solve. how many problems are in jenny's notebook if she solved 28 problems on saturday
Answers
Answer:
48 problems
Step-by-step explanation:
Jenny planned to solve 2/3 of homework
On Saturday she solved 28 problems, which is 7/8 of the planned number
Planned number is:
28 : 7/8 = 28 * 8/7 = 32 problems
Jenny's homework was:
32 : 2/3 = 32 * 3/2 = 48 problems
If quadrilateral ABCD is translated 3 units to the left and 5 units down, what are the coordinates of point B after the translation?
options:
(3, 15)
(-2, -2)
(1, 3)
(-4, 0)
Answers
Calculate the slope.
(-12,-5) and (0, -8)
Answers
Answer:
-1/4
Step-by-step explanation:
slope is always rise/run so
(-8)-(-5)=-3
-3/12=-1/4
the slope is -1/4
Enjoy^^
Simplify the polynomial using multiplication.
−5b(2a−3a2)
−10a+3ba^2
−10ba+15ba^2
−5b+2a−3a^2
10ba−15ba^2
Answers
Answer:
−10ba+15ba^2
Step-by-step explanation:
The product of the given monomial and binomial is -10ab+15a²b.
The given expression is −5b(2a−3a²).
We need to simplify the polynomial using multiplication.
What is an expression?An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.
Binomials are also a kind of polynomials consisting of only two terms. A binomial is defined as an algebraic expression consisting of two terms that are separated by the arithmetic signs, either the addition sign (+) or the subtraction sign (-). When multiplying a monomial by a binomial, we follow the distributive law of multiplication.
Now, 2a×(−5b)−3a²×(−5b)
=-10ab+15a²b
Therefore, the product of the given monomial and binomial is -10ab+15a²b.
To learn more about the multiplication of polynomials visit:
https://brainly.com/question/17419800.
#SPJ2
Which answer is correct ?????
Answers
Answer:
D
Step-by-step explanation:
The answer is
y = .613x + 4.142
this function has answer of d
Answer:
the first option..
Step-by-step explanation:
substitute the x values in the table for "x" in the equation and solve
HELP PLEASEEEEEEEEEE
Answers
Answer: 1/125
Step-by-step explanation:
first, i multiplied it.
1/5^3
then, it's easy to evaluate from there.
1/125
A store manager predicts that 60 hats will be sold if each hat costs $20. The manager predicts that 2 less hats will be sold for every $1 increase in price. For what prices can the manager predict that at least 30 hats will be sold?
Answers
100-60=40 is the number of hat sales the manger can afford to lose 40/4=10
please help me!!!!!
Answers
Answer:
AB
Step-by-step explanation:
Increasing by 5/1
A survey of a random sample of ninth-grade students from Alabama asked whether the students owned a
cell phone and whether they had brought a personal electronic device to use for schoolwork that day. The
two-way table of now relative frequencies below shows the data
Answers
Answer: A student who owns a cell phone is more likely to have brought a personal device than not to have brought one.
Step-by-step explanation:
A helicopter's altitude is changing at a rate of -12 feet per second. Find the
change in altitude of the helicopter after 7 seconds.
Answers
Answer:
-84 feet or goes down 84 feet
Step-by-step explanation:
-12*7
Heather made a shirt using 1/2 yards of green fabric & 1/3 yards of blue fabric. How many yards of fabric did she use in all ?
Answers
1/3 yards = 12 inches
30 inches in total
30/36
simplify
5/6
Deborah bought a computer for 25% off the list price. If the list price is $2,428, how much did Deborah spend? A. $607 B. $1,821 C. $2,115 D. $2,403
Answers
Answer:
Option A, [tex]\$607[/tex]
Step-by-step explanation:
Given: Deborah bought a computer for [tex]25\%[/tex] off the list price.
The list price is [tex]\$2,428[/tex].
To find: The amount Deborah spent on the computer.
Solution: We have,
List price of the computer [tex]=\$2,428[/tex].
Deborah bought the computer for [tex]25\%[/tex] off the list price.
The amount Deborah spent on the computer [tex]=25\% \times 2,428[/tex]
[tex]=\frac{25}{100}\times2428=\frac{2428}{4} =\$ 607[/tex].
So, Deborah spent [tex]\$607[/tex] on the computer.
Hence, option A is correct.
Jim is experimenting with a new drawing program on his computer. He created quadrilateral TEAM with coordinates T(- 2, 3), E(- 5, - 4), A(2, - 1) , and M(5, 6) . Jim believes that he has created a rhombus but not a square. Prove that Jim is correct.
Answers
Answer: yes Jim is correct
Each side of the quadrilateral is congruent. Then the quadrilateral is known as the rhombus.
What is a quadrilateral?The quadrilateral has four sides and four angles. The sum of internal angles is 360 degrees.
If all the sides of the quadrilateral are congruent then the quadrilateral may be a square or rhombus.
If none of the angles of that quadrilateral is equal to 90 degrees. Then the quadrilateral is known as a rhombus.
Jim is experimenting with a new drawing program on his computer. He created quadrilateral TEAM with coordinates T(- 2, 3), E(- 5, - 4), A(2, - 1) , and M(5, 6) .
The diagram is given below.
From the diagram, each side of the quadrilateral is congruent. Then the quadrilateral is known as the rhombus.
More about the quadrilateral link is given below.
https://brainly.com/question/13805601
#SPJ2
find the value of x that makes def ~ xyz
x=
Answers
Answer:
x = 3.5
Step-by-step explanation:
[tex] \triangle DEF \sim \triangle XYZ\\\\
\therefore \frac{DE}{XY} =\frac{DF}{XZ} \\\\
\therefore \frac{5}{7.5} =\frac{7}{3x} \\\\
\therefore 3x = \frac{7.5\times 7}{5} \\\\
\therefore x = \frac{7.5\times 7}{3\times 5} \\\\
\therefore x = \frac{52.5\times 7}{15} \\\\
\therefore x = 3.5[/tex]
Step-by-step explanation:
If [tex]\triangle[/tex]DEF~[tex]\triangle[/tex]XYZ
[tex]\tt{\dfrac{DE}{XY}=\dfrac{EF}{ZY}=\dfrac{DF}{XZ} }[/tex]
According to the question
[tex]\tt{\dfrac{5}{7.5}=\dfrac{3}{4.5}=\dfrac{7}{3x} }[/tex]
[tex]\tt{\dfrac{3}{4.5}=\dfrac{7}{3x} }[/tex]
[tex]\tt{ 9x=4.5×7}[/tex]
[tex]\tt{ 9x=31.5 }[/tex]
[tex]\tt{ x=\dfrac{22.5}{9} }[/tex]
[tex]\tt{x=3.5 }[/tex]
VOTING BRAINLIEST
The table shows a relationship between x and y.
Which statement is supported by the rate of change for this relationship?
A. The value of y increases by 14.50 when the value of x increases by 1.
B. The value of y increases by 43.50 when the value of x increases by 8.
C. The value of y increases by 21.75 when the value of x increases by 3.
D. The value of y increases by 7.25 when the value of x increases by 2.
Answers
Answer:
A
Step-by-step explanation:
i used a calculator
Can someone pls help me!!
A. 5 inches
B. 16 inches
C. 13 inches
D. 19 inches
Answers
Answer:
c. 13
Step-by-step explanation:
[tex]c=\sqrt{a^{2}+b^{2}} = \sqrt{12^{2}+4^{2}}[/tex] ≈ [tex]12.64911[/tex] ≈ [tex]13[/tex]
Determine the solution to the system of equations:
y = 3x +4
y = 2x + 1
Answers
Answer:(-3,-5)
Step-by-step explanation: