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Fittoniya [83]
3 years ago
15

Plzzz help ?? Don't know

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
8 0
I think its c yo...............
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Please Help Me!
alexdok [17]

Answer:

The answer to your question is below

Step-by-step explanation:

                 (2x⁴ + 7x³ - 3x + 9) - (6x⁴ - 3x³ - 6x² - 17)

Step 1. take out the parenthesis, in the second term, change the signs

                  2x⁴ + 7x³ - 3x + 9 - 6x⁴ + 3x³ + 6x² + 17

Step 2. Group like terms

                  (2x⁴ - 6x⁴) + (7x³ + 3x³) + (6x²) + (-3x) + (9 + 17)

Step 3. Simplify like terms

                          -2x⁴ + 10x³ + 6x² - 3x + 26

                 

3 0
3 years ago
3 increased by a number
zimovet [89]

Answer:

4 or5or6

Step-by-step explanation:

3+1=4

3+2=5

3+3=6

6 0
1 year ago
Read 2 more answers
Simplify the expression below: 4+2×[(3+1)×5] (show work please need it for review)
____ [38]

Answer:

44

Step-by-step explanation:

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

First we need to do the work inside the parenthesis that are in the boxed parenthesis

3 + 1 = 4

4 * 5 = 20

Now we multiply

20 * 2 = 40

Now we add

40 + 4 = 44

Best Of Luck,

- I.A. -

5 0
3 years ago
Help plz math related questions 4 of them
Soloha48 [4]
Simple...

you have:

1.) x-3y  when x=-4 and y=9 

-->>> (plug it in)

-4-3(9)

-4-27

-31

2.) a-|b|  when a=-7.6 and b=-8.9

-->>>(plug it in)

-7.6-|-8.9|

-16.5

3.) 3(8x-y) when x=-4 and y=9

-->>(plug it in)

3(8(-4)-9)

3(-32-9)

3(-41)

-123


4.)

\frac{9c}{d} when c=2 and d=\frac{1}{3}

\frac{9(2)}{ \frac{1}{3} }

\frac{18}{ \frac{1}{3} }

54

Thus, your answer.






6 0
3 years ago
A dinner check is to be split among 3 people. Greg’s portion of the check is twice Kelly’s. Joe’s portion is $1.50 less than 4 t
defon

Answer:

Kelly owes $16.5

Greg owes $33

Joe owes $64.5

Step-by-step explanation:

Let

Kelly's portion = x

Greg's portion = 2x

Joe's portion = 4x - 1.50

Total bill = $114.00

Total bill = Kelly's portion + Greg's portion + Joe's portion

114 = x + 2x + (4x - 1.50)

114 = 3x + 4x - 1.50

114 = 7x - 1.50

Add 1.50 to both sides

114 + 1.50 = 7x - 1.50 + 1.50

115.5 = 7x

Divide both sides by 7

x = 115.5 / 7

= 16.5

x = $16.5

Kelly's portion = x

x = $16.5

Greg's portion = 2x

= 2 × 16.5

= $33

Joe's portion = 4x - 1.50

= 4(16.5) - 1.50

= 66 - 1.50

= $64.5

Therefore,

Kelly owes $16.5

Greg owes $33

Joe owes $64.5

7 0
3 years ago
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