MATHEMATICS HIGH SCHOOL

Solve x2 + 4x − 12 = 0.A: x = 2, x = −6
B: x = −2, x = −6
C: x = 3, x = −4
D: x = −3, x = 4

Answers

Answer 1
Answer: x^2 + 4x - 12 = 0
(x + 6)(x - 2) = 0

x + 6 = 0          x - 2 = 0
x = -6               x = 2

Answer A: x = 2; x = -6
Answer 2
Answer:

Answer:

x = - 6; x = 2

Step-by-step explanation:

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lalo has 1500 minutes per month on his cell phone plan. how many more minutes can he use if he has already talked for 785 minutes?

Answers

Answer:

Lalo can talk for 715 minutes more in that month if he has already talked for 785 minutes.

Step-by-step explanation:

Total number of minutes per month lalo has on his cell phone plan = 1500

Number of minutes he has already talked in that month = 785

Number of minutes available to talk = total number of minutes he has - total number of minutes he has already used.

                                                           = 1500 - 785

                                                            = 715 minutes.

Thus, Lalo can talk for 715 minutes more in that month if he has already talked for 785 minutes.
All you have to do is subtract 1500-785 in order to find the number of minutes left for him.
1500-785=715 more minutes left

Sam borrows $1,000 from a bank that is charging eight percent simple interest per year. If he pays the loan back in six months, how much interest will he pay?

Answers

8\%:2=4\%=0.04\n\n0.04\ *\ \$1,000=\$40\leftarrow answer

(6x^5+21x^4+33x^3+0x^3+18x+12)÷(6x+3)

Answers

so first factor out the big equation on top
very hard
we can cancel out the 0x terms since 0x=0

so we notice that 3 is a factor of both equations
(6x+3)=(3)(2x+1)

and
(6x^5+21x^4+33x^3+18x+12)=(3)(2x+1)(x^4+3x^3+4x^2-2x+4
so we notice that there is a (3)(2x+1) in bot h so divide and cross them out

the answer is (x^4+3x^3+4x^2-2x+4)

Which expression is equivalent to2(3g-4)-(8g + 3)?
1) -2g - 1
2) -2g - 5
3) -2g -7
4) -29 - 11

Answers

Answer:

4) -2g - 11

Step-by-step explanation:

2(3g-4)-(8g + 3) =

6g - 8 - 8g - 3 =

- 2g - 11

If anyone can assist with a step by step

Answers

Answer:

(in the image)

Step-by-step explanation:

hope it helps

Convert 34 over 9 into a mixed number

Answers

To do this, ask yourself how many times 9 goes into 34.
9 goes into 34 three times
3 <---------- this is your whole number
Now 9 x 3 is 27. 34 - 27= 7
So your remainder is 7
Answer is 3 7/9
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