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EleoNora [17]
3 years ago
15

-k(-4k^2+k+2) Best one and simplest one gets the brainliest, I'm In a rush.

Mathematics
2 answers:
murzikaleks [220]3 years ago
7 0

Answer:

- 2k - {k}^{2} + 4 {k}^{3}

Step-by-step explanation:

According to the Product-to-Power Exponential Rule, whenever you multiply terms with exponents and coefficients, you add the exponents:

-k[-4k² + k + 2]

4k³ - k² -2k

The above answer is written in reverse, but it is the exact same result.

I am joyous to assist you anytime.

sasho [114]3 years ago
4 0

Answer:

4k^3 - k^2 - 2k

Step-by-step explanation:

-k * -4k^2 = 4k^3

-k * k = -k^2

-k * 2 = -2k

4k^3 - k^2 - 2k

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Tickets to a concert cost $50 for each orchestra seat and $40 for each
Vsevolod [243]

Answer:

H. the number of orchestra seat is 900

Step-by-step explanation:

Step one:

let the number of orchestra seat be x

and balcony seat be y

cost of orchestra= $50 each

cost of balcony =$40 each

total tickets= 1500

x+y= 1500----------1

amount earned= $69000

50x+40y=69000--------2

The system of equation for the situation is

x+y= 1500----------1

50x+40y=69000--------2

from 1, x=1500-y

put this in equation 2

50(1500-y)+40y=69000

75000-50y+40y=69000

-10y=69000-75000

-10y=-6000

divide both sides by -10

y=-6000/-10

y=600

put y= 600 in equation 1

x+600= 1500

x=1500-600

x=900

6 0
3 years ago
If I buy a stereo for $245 and this includes GST of 10%, what is the pre-GST price?
Ivan

Answer:  $222.73

===========================================

Work Shown:

x = pre-GST price

10% of x = 0.10x = tax amount

x + 0.10x = 1.10x = post-GST price = 245

1.10x = 245

x = 245/1.10

x = 222.7272 approximately

x = 222.73 is the price before tax.

------------

Check:

10% of 222.73 = 0.10*222.73 = 22.273 = 22.27

The tax amount ($22.27) is added to the pre-GST price to get

22.27+222.73 = 245

which matches the post-GST price mentioned.

The answer is confirmed.

Or another way to confirm the answer is to calculate this

1.10*222.73 = 245.003 = 245

6 0
3 years ago
Read 2 more answers
BRAINLIEST ASAP! PLEASE HELP ME :)
Irina-Kira [14]

Answer:

○ \displaystyle 25\%

Step-by-step explanation:

3 → 13 − 16

\displaystyle \frac{Number\:of\:desired\:[favourable]\:outcomes}{Total\:number\:of\:possible\:outcomes} \\ \\ \frac{3}{12} = \frac{1}{4} = 25\%

I am joyous to assist you anytime.

4 0
3 years ago
Steven wants to buy a $565 bicycle. Steven has no money saved, but will be able to deposit $30 into a savings account when he re
finlep [7]

Answer:

18.3

Step-by-step explanation:

5 0
3 years ago
Will give brainiest Will give brainiest Will give brainiest Will give brainiest Will give brainiest Will give brainiest Will giv
yawa3891 [41]

Answer:

The amount depositied is less than or equal to the amount of money in his wallet.    

Step-by-step explanation:

PLEASE GIVE mE BRA1NL1EST!!!

7 0
3 years ago
Read 2 more answers
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