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3 years ago

Is this right? I’m just checking my work but I need to submit this soon.

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

4 0

Yes i believe they are correct

(hope you get a 100% :))

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Which shows one way to determine the factors of x3 + 11x2 – 3x – 33 by grouping?

wolverine [178]

Answer:

$x^3-3x-11$

Step-by-step explanation:

Group the greatest common factor and then combind.

multiply 11 by 2. $x^3+22-3x-33$
subtract 33 from 22. $x^3-3x-11$

3 0

3 years ago

if the national economy shrank an annual rate of 10% per year for four consecutive years in the economy shrank by 40% over the f

Ira Lisetskai [31]

It is true because 10*4 =40%

5 0

3 years ago

Grandma gives 180 marbles to her ten grandchildren. No two children get the same amount of marbles. Betsy gets the most. What is

SOVA2 [1]

Answer:

23 marbles

Step-by-step explanation:

Number of children = 10

Number of marbles = 180

Since Betsy gets the most and no 2 children gets the same number of marbles

The least number of marbles Betsy could get will be x ; with the other 9 children receiving 1 less each

That is :

Betsy = x

9th child = x - 1

8th child = x - 2,... 1st child = x - 9

Hence,

(x + x - 1 + x - 2 + x - 3 + x - 4 + x - 5 + x - 6 + x - 7 + x - 8 + x - 9) = 180

10x - 45 = 180

10x = 180 + 45

x = 225 / 10

x = 22.5

x = 23

Hence, the least Betsy could get is 23 marbles

5 0

3 years ago

Helpppp! I’ll give you brainliest answer

ch4aika [34]

Answer:

None of the above

Step-by-step explanation:

=4+2y+7

x+8=(7x)+

(2y)+(4+8)=7x+2y+12

4 0

3 years ago

Read 2 more answers

Multi step equations

miv72 [106K]

-86 = -6(-3p - 3) - 5p

Distribute the -6 into the parentheses:

-86 = (-6 * -3p) + (-6 * -3) - 5p

-86 = 18p + 18 - 5p

Simplify:

-86 = 13p + 18

Subtract both sides by 18:

-86 - 18 = 13p + 18 - 18

-104 = 13p

Divide both sides by 13:

$\frac{13p}{13}$ = $\frac{-104}{13}$

$\frac{p}{1}$ = $\frac{-8}{1}$

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Good luck! If you have any questions, don't be afraid to ask :))

-T.B.

6 0

3 years ago

Read 2 more answers