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Dahasolnce [82]
3 years ago
13

Solve 9x^2 + 12x – 24 = 0 using the quadratic formula.

Mathematics
1 answer:
Nataliya [291]3 years ago
8 0
Quadratic formula = (-b +- sqrt(b^2 - (4ac))) / 2a

\frac{ -12 +  \sqrt{(12)^2 -((4)(9)(-24))}}{2(9)}

and

\frac{ -12 - \sqrt{(12)^2 -((4)(9)(-24))}}{2(9)}

then simplify and solve
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Evaluate 2b + c<br> for b = 5 and c = 5<br> Please help
Svet_ta [14]

Answer:

2(5)+5=15

Step-by-step explanation:

1. you have the equation 2b+c

2. then you add the numbers for c and b

3. so b=5 and c=5

4. once you add it into the problem then you get 2(5)+5 make sure you remember to times 2 x 5

5. then you do PEMDAS

6. you do multiply so 2x5 is 10

7. then do 10+5 and you get 15 as your answer.

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What is true product of 5/8 and 3/4
kap26 [50]

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0.46875 or 15/32

Step-by-step explanation:

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What is the result of converting 60 ounces to pounds?
victus00 [196]

3.75 pounds in 60 ounces. :)

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If someone drove 15 miles and is only three fifths of their way home what is the total length of her drive
BabaBlast [244]
3/5 * X = 15
3/5 ÷3/5 * X = 15 ÷ 3/5
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The total length is 25 miles
3 0
3 years ago
Renita started her homework at 3:45 P.M. She worked for 2 hours and 15 minutes. What time did she finish her homework?
Flauer [41]

Answer:

6:00 or 6 o'clock

Step-by-step explanation:

1) Add 2 to the hours. So, 3+2=5

2) Add 15 minutes to 45 minutes. So, 15+45=60

3) 60 minutes is an hour, so therefore add one more hour. 5+1=6

4) There are 6 hours and 0 minutes.

So, the time that Renita finished her homework was 6:00.


Hope this helps!!                                                             ~Carley R.

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4 years ago
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