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
Ainat [17]
3 years ago
5

8th grade math! Please help. timed test

Mathematics
1 answer:
jeka57 [31]3 years ago
3 0

Answer: c

Step-by-step explanation:

You might be interested in
Let u = <-4, 1>, v = <-1, 6>. Find -2u + 4v
Maksim231197 [3]

Answer:

<4,22>.

Step-by-step explanation:

This question involves the concepts of addition and scalar multiplication of vectors. It is given that the vector u = <-4, 1> and v = <-1, 6>. To find -2u, simply multiply -2 with the elements of u. This will give:

-2u = <-4*-2, 1*-2> = <8, -2>.

Similarly:

4v = <-1*4, 6*4> = <-4, 24>.

Hence,

-2u + 4v = <8, -2> + <-4, 24> = <8-4, -2+24> = <4,22>.

So the correct answer is <4,22>!!!

6 0
3 years ago
I will give you a good amount of points if you answer this correct​
Colt1911 [192]

Answer:

I think the answer is B. The equation has infinitely many solutions.

Step-by-step explanation:

4(3x + 4) = 15x + 12 - 3x + 4

*group like terms so 4(3x+4) = 15x - 3x + 12 + 4

*add similar elements 15x - 3x = 12x

*add the numbers 12 + 4 = 16

*Expand to 12x + 16 - 16 = 12x + 16 - 16

*You simplify 12x = 12x

*Subtract 12x from both sides

*Then Simplify which is 0

Which means Both sides are equal to 0

True for all X

5 0
3 years ago
Simplify the expression and write without negative exponents:
andreyandreev [35.5K]
8sr6 + 2sr2×2×3 +5sr3 - sr2×3×3×3
=8sr6 + 2(2)sr3 + 5sr3 - 3sr2×3
=8sr6 + 4sr3 + 5sr3 - 3sr6
=8sr6 - 3sr6 + 4sr3 +5sr3
=5sr6 + 9sr3 (ans)
3 0
3 years ago
Factorise the following.​
zepelin [54]

Answer:

Step-by-step explanation:

i). \frac{48a^3}{6a}=\frac{6\times 8\times a\times a^2}{6a}

          =\frac{6a}{6a}\times 8a^2

          = 8a²

ii). \frac{72a^3b^4c^5}{8ab^2c^3} = \frac{8\times 9\times a\times a^2\times b^2\times b^2\times c^2\times c^3}{8ab^2c^3}

                = \frac{8ab^2c^3}{8ab^2c^3}\times 9a^2b^2c^2

                = 9a²b²c²

8 0
3 years ago
What makes an equation false?
stellarik [79]

Answer:

When ever you can’t solve it it considered false like 4 - 12

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Sally has to spend $700 on expenses each year. if that amount of money is 36.8% of her salary, then how much money does Sally ma
    12·1 answer
  • Which statements are true about the standard normal distribution? The standard normal distribution is______.
    6·1 answer
  • The owner of a city parking garage uses a rate table so that he can look up the parking charges quickly. Enter a number as a dec
    6·2 answers
  • Marco wants his total purchase for the month to be less than $450 write and solve an inequality to find how much more he can spe
    8·1 answer
  • Point A is located at (3, 6) and point B is located at (10,−2) .
    6·1 answer
  • Find the long multiplication answer for 7/10
    12·1 answer
  • Which answer is a solution for x if <br> x<br> 4<br> = 21
    10·2 answers
  • Wyatt and Jayleen help out on their family farm. They have 11 dairy cows, and they
    5·1 answer
  • I need this asap answer
    14·2 answers
  • Write a mixed number giving the amount shaded.<br> Then, write this amount as an improper fraction.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!