1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Masja [62]
3 years ago
9

(a+2)(a-1) - (a+1)(a-2), if a = 2​

Mathematics
1 answer:
Artist 52 [7]3 years ago
8 0

Answer:

4

Step-by-step explanation:

(a+2)(a-1) - (a+1)(a-2)

put a=2

(2+2)(2-1) - (2+1)(2-2)

4*1 -3*0

4-0

4

You might be interested in
ILL MARK AS BRAINLEIST
mash [69]

Answer:

<u><em>24,501.42 m³</em></u>

Step-by-step explanation:

Volume (cylinder) = πr²h

r = d/2 = 34/2 = 17 m

h = 27 m

V = 3.14 x 17 x 17 x 27

= 53.38 x 459

= <u><em>24,501.42 m³</em></u>

7 0
2 years ago
Have I been solving these equations correctly?
Tresset [83]

14)


2(-3)² => 2(-3)(-3) => 2*9 = > 18


27+18-11 => 27 + 7 = > 34.


16)


\bf p(x)=\cfrac{x^2-4}{2x+1}\implies p(-8)=\cfrac{(-8)^2-4}{2(-8)+1}\implies p(-8)=\cfrac{64-4}{-16+1} \\\\\\ p(-8)=\cfrac{60}{-15}\implies p(-8)=-4


17)


\bf h(x)=3\cdot 9^x\implies h(-2)=3\cdot 9^{-2}\implies h(-2)=3\cdot \cfrac{1}{9^2} \\\\\\ h(-2)=\cfrac{3}{9^2}\implies h(-2)=\cfrac{3}{81}\implies h(-2)=\cfrac{1}{27}

4 0
3 years ago
The interest rate on the marshals variable rate mortgage increased from 10% to 12%. Their old monthly payment was $437.24. their
kakasveta [241]

Step-by-step explanation:

the difference in monthly pymts $59. 49/mthly

$59.49 × 12 = $713.88 increase in pymts in 1 year.

8 0
2 years ago
Lin is shopping for a couch with her dad and hears him ask the salesperson, "How much is your commission?" The salesperson says
Volgvan

Answer:

$467.77

Step-by-step explanation:

CHECK THE COMPLETE QUESTION

Lin is shopping for a couch with her dad and heard him ask the salesperson “how much is your commission?” The salesperson says that her commission is 5 1/2% of the selling price. A.How much commission will the salesperson earn by selling a couch for $495?

B.How much money will the store get from the sale of the couch?

From the question, the commission of the salesperson is 5 1/2 % , we can convert to improper fraction as 11/5%, then we can convert to decimal by dividing the numerator by denominator which is 5.5% , we can convert from percentage by saying(5.5%/100)

= 0.055

A)How much commission will the salesperson earn by selling a couch for $495?

His Commission will be

(0.055 x $495 )

= $27.23

B.How much money will the store get from the sale of the couch?

Since we know this Commission as $27.23, then the amount the store get from sale will be

(difference between the commission and the selling price)

($495.00- $27.23)

= $467.77

5 0
2 years ago
A person travelled 9 hours a day what percentage of the day was spent on this journey​
Galina-37 [17]

Answer:

37.5%

Step-by-step explanation:

one day has 24 hours

100%->24

1%->0.24

9÷0.24 = 37.5%

7 0
3 years ago
Read 2 more answers
Other questions:
  • Please, help me with question number 9, I am so confused.
    5·1 answer
  • Help me!!!!!!.......
    13·1 answer
  • What is the inverse of the function of (x)=2^(x)+6
    11·1 answer
  • Digit thousands place 751,486
    10·2 answers
  • Which scale factors produce an expansion under a dilation of the original image?
    9·2 answers
  • I will award brainliest.<br> Complete the table! Thanks
    6·1 answer
  • Which was the most important effect of the bessemer process
    14·2 answers
  • How many 1/4 cup servings are there in 3/8 cup peanut butter?
    8·2 answers
  • If the surface area of a square pyramid is 84 in and the side length of the base is 6 in what is the value of x
    5·1 answer
  • Which values complete the function? f(x) = (x – )(x ).
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!