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Crank
4 years ago
15

Solve 3x^2 + 4x - 12 = 0

Mathematics
1 answer:
Andrei [34K]4 years ago
4 0

Answer: x^2 = 2

Step-by-step explanation: 3x^2 + 4x=12

                                             6x^2=12

                                             x^2= 12/6

                                             x^2= 2

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2. The senior class is having a fundraiser to help pay for the senior trip. Selling a box of chocolates yields a profit of $2.45
BaLLatris [955]

Answer:

Step-by-step explanation:

350 chocolate     1599 of cookies

Step-by-step explanation:

c= box of chocolates

k=box of coockies

k< 550+3c , so   k-3c<550              

 k+c< 1950

 k-3c<550

I will multiply  the second by 3

k -  3c <  550

3k +3c <  5850

ADD BOTH

4k  <  6400

k  <   1600    Cookies should be less than 1600

Since cookies yield more than chocolates , to maximize profit they need to sell the maximum amount of cookies they can

1599 +350= 1949  (less than 1950)

The amount of cookies produced must be no more than 550 boxes plus 3 times the number of chocolates produced.

1599< 3(350) +550= 1050+550=1600)

1599<1600

1599 is at least double of 350 (it could be more than double)

4 0
3 years ago
Katie is buying souvenir gifts for her big family back home. She wants to buy everyone either a key chain or a magnet. The magne
lawyer [7]
Make an inequality representing both constraints.

0.5x+y<20

x+y≥24
8 0
3 years ago
Read 2 more answers
What is the geometric mean of 6 and 9
Dmitry [639]
6+9=15
15 Divided by 2=7.5
Therefore your answer will be 7.5
4 0
4 years ago
Read 2 more answers
You haft too use elimination to solve this thank you
lakkis [162]

Answer:

x=0, y=-2

Step-by-step explanation:

Because 9y appears twice in both equations, you can subtract the equations to eliminate the y variable so you can solve for x:

-7x + 9y = -18

-(4x + 9y = -18)

__________

-11x = 0

x = 0

Since we know x=0, then we plug it back into one of the equations to get the value of y:

-7x + 9y = -18

-7(0) + 9y = -18

0 + 9y = -18

9y = -18

y = -2

Therefore, x=0, and y=-2

5 0
3 years ago
Whats the answer for w^5+4w^4+10w^3+40w^2
Mazyrski [523]

Answer:

w^2*(w+4)*(w^2+10)

Step-by-step explanation:

w^5+4w^4+10w^3+40w^2

w^2*(w^3+4w^2+10w+40)\w^2*(w^2*(w+4)+10(w+4))

w^2*(w+4)*(w^2+10)

6 0
3 years ago
Read 2 more answers
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