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
krok68 [10]
3 years ago
7

4ab (a -b) + b (2b -2a²) for a = 1 and b= -1 simplify it

Mathematics
2 answers:
grin007 [14]3 years ago
4 0

Answer:

by my calculations the answer is 10

Step-by-step explanation:

4×1(1-1)+1(2×1-4)

4+1(2-4)

5×2

10

aleksley [76]3 years ago
3 0

Answer:

Step-by-step explanation:

4ab(a-b)+b(2b-2a^2)

=4*1*-1[1-(-1)]+(-1){2(-1)-2*1^2}

=-4(1+1)-1{-2-2}

=-4*2-1(-4)

=-8+4

=-4

You might be interested in
Evaluate 7^2 + (4x5) - 2^3
Phoenix [80]

So it would be 49+(20)+8

= 77

7 0
4 years ago
Logan wants to have $130,000 to pay for a surgery on his retractable forearm claws in 30 months. If he can invest money in an ac
dangina [55]

Answer: $107,836.69 or about $107,837 (to the nearest dollar)

Step-by-step explanation:

Formula to the  accumulated amount received after investing principal amount (P) at rate of interest (r) compounded monthly for t months :

A=P(1+\dfrac{r}{12})^{t}

As per given , A = $130,000

r= 7.5% = 0.075

t= 30 months

Now,

130000=P(1+\dfrac{0.075}{12})^{30}\\\\\Rightarrow 130000=P(1+0.00625)^{30}\\\\\Rightarrow 130000=P(1.00625)^{30}\\\\\Rightarrow 130000=P \times1.20552661036\\\\\Rightarrow\   P=\dfrac{130000}{1.2055266}=107,836.69

Hence he need to invest $107,836.69 .

8 0
4 years ago
Using the distributive property write a numerical expression that is equivalent to 25+10
Diano4ka-milaya [45]

Answer: 5(5 + 2)

Step-by-step explanation: We will be using the distributive property to write a numerical expression that is equivalent to 25 + 10.

The expression 5(5 + 2) is an expression that uses the distributive property and is equivalent to 25 + 10.

5(5 + 2) is equivalent to 25 + 10 because all your doing when using the distributive property is multiply the number outside the parentheses by the numbers inside the parentheses. 5 x 5 = 25 and 5 x 2 = 10, which means 5(5 + 2) equals 25 + 10.

6 0
3 years ago
This system has one solution.
lana [24]

Answer:

y = 7

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
I need help with like terms
professor190 [17]
I’m guessing you mean like this.
2x+4y+5x+8y.
2x and 5x are like terms because the x’s are alike. If you add 2+5, the answer is 7. So therefore 2x+5x=7x.

4y and 8y are like terms because the y’s are alike. So the answer to 4y+8y would be 12y.

If you need extra help, give me a problem and I will help you solve it.
7 0
3 years ago
Other questions:
  • A seamstress needs to cut 15 inch pieces of ribbon from a roll of ribbon that is 9 feet in length.What is the greatest number of
    7·2 answers
  • Ricardo and John start swimming from the same location. Ricardo starts 15 seconds before John and swims at a rate of 3 feet per
    7·1 answer
  • A student bought two juice pouches for $1.25 each and 3 bags of chips. The total cost was $5.05. Write and solve an equation to
    9·2 answers
  • 2. The student council is sponsoring a concert as
    14·1 answer
  • The x-intercept of the line x = 3.5 is ____? and the y-intercept of the line y = -6.5 is ____? Enter your answer as an ordered p
    11·1 answer
  • What is the decimal equivalent for the fraction 7/11
    15·2 answers
  • there were 132 children at the museum on Saturday. on Sunday, there were 61 children. how many children were there on Saturday a
    14·2 answers
  • A right cylinder has a radius of 3 and a height of 12. What is its surface area?
    7·1 answer
  • How do I find the value of x?
    8·1 answer
  • Provide the missing reasons for the proof. <br><br> Given: AB = CB<br> EB DB<br> Prove: ABC ~ EBD
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!