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allsm [11]
4 years ago
6

Expand and Simplify (2x+1)(x-2)(x+3)

Mathematics
1 answer:
NeTakaya4 years ago
6 0

(2x + 1)(x - 2)(x + 3) \\  = (2x  + 1)( {x }^{2}  + x - 6) \\  ={2x}^{3}  + 2 {x}^{2} -12x +  {x}^{2}  + x - 6 \\  = 2 {x}^{3}  + 3 {x}^{2}  - 11x - 6
hope this would help you
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PLEASE HELP
ch4aika [34]
I hope this is right, but I think it should take a remaining six hours for the new guy to fix your car. He worked on it for two hours with the other mechanic, but it still takes him 8 hours total to fix the car. So he still has six more hours to fix your car. Again, I hope this is right.
7 0
3 years ago
Cellular phone service that charges per-minute will charge $5 for 50 minutes. How much would 1599 minutes cost?
Vlad1618 [11]

Answer:

$159.9

Step-by-step explanation:

5/50=.10 cents

.10•1599=159.9

Answer $159.90

4 0
3 years ago
In a game the player wins if he rolls a 6 on a number cube. If the number cube is rolled 18 times, then what is a reasonable pre
Mamont248 [21]
On a cube, you have 6 faces, therefore you have 1 chance to get 6 and 5 chances not to get 6.

Therefore, the overall probability not to get 6 is 5/6 = 0.8333

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18 × 0.8333 = 15

Therefore, you expect to have 15 unsuccessful rolls over 18 total rolls.
7 0
3 years ago
Enter the correct answer in the boxes and select the corresponding number in each column.
tester [92]

Answer:

X = 8

Step-by-step explanation:

5x + 2(4x-16) = 72

multiply 2 into the parenthesis

5x + 8x-32 = 72

combine like terms

13x - 32 = 72

add 32 on both sides

13x = 104

divide by 13 on both sides

X = 8

8 0
3 years ago
Search cos jk and tan jk knowing that sin jk = 8/3
aleksley [76]

Answer:

cosjk = √55 i/3

tanjk = 8/√55 i

Step-by-step explanation:

Given

sin jk = 8/3

According to SOH CAH TOA

Sin theta = opposite/hypotenuse = 8/3

Opposite = 8

hypotenuse = 3

Get the adjacent using the pythagoras theorem

hyp² = opp²+adj²

adj² = hyp² - opp²

adj² = 3² - 8²

adj² = 9-64

adj² = -55

adj = √-55

adj = √55 i (i = √-1)

Get cosjk

cosjk = adj/hyp

cosjk = √55 i/3

Get tanjk

tanjk = opp/adj

tanjk = 8/√55 i

3 0
3 years ago
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