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IRISSAK [1]
3 years ago
5

For the equation y=3x^2+12x-4, what is the minimum value?

Mathematics
1 answer:
Neko [114]3 years ago
4 0

Answer:

(-2, -16)

Step-by-step explanation:

the minimum is at the vertex which can be found using -b/2a for the x-value of the vertex.

y = 3x^2 + 12x - 4

  = ax^2 + bx - c

b = 12, a = 3

-12/(2(3))

-12/6

x = -2

y = 3(-2)^2 + 12(-2) - 4

y = -16

(-2, -16)

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Belinda runs 8 kilometers in 60 minutes at this how long would it take her to run 2 kiloneters?
sasho [114]

Answer:

It will take Belinda 15 minutes to run 2 kilometers.

Step-by-step explanation:you first divide 8 by 2, which equals 4 and 60 divided by 2 which equals 30. Then you divide 4 by 2 and divide 30 by 2 which will give you the answer of 15 minutes to run 2 kilometers.


3 0
3 years ago
I have no idea where to plot the points
sp2606 [1]

Answer:

1/4 is slope\

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A stove costs $695 will be on sale next week for 20% off its regular price. What is the amount of savings
jonny [76]

Answer:

It would be 139$

Step-by-step explanation:

In order to find a percent of a value you first move the decimal place over 2 to the left or divide by 100(percentage is no longer there). In this case it would be .20. You multiply that with the total number(695) and the product is your answer.

3 0
3 years ago
Without solving, NO SOLUTION describes which equation?
CaHeK987 [17]

Answer:

The equation 'y = y + 1' represents NO SOLUTION.

Hence, option 'C' is true.

Step-by-step explanation:

a)

6a = 9a

subtract 9a from both sides

6a - 9a = 9a - 9a

-3a = 0

divide both sides by -3

-3a / -3 = 0/-3

Simplify

a = 0

b)

5x = 28

divide both sides by 5

5x/5 = 28/5

x = 28/5

c)

y = y + 1

subtract y from both sides

y - y = y+1-y

0 = 1

These sides are not equal, so

NO SOLUTION!

d)

y + 5 = 12

subtract 5 from both sides

y + 5 - 5 = 12 - 5

y = 7

Conclusion:

Therefore, the equation 'y = y + 1' represents NO SOLUTION.

Hence, option 'C' is true.

5 0
3 years ago
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Selected value of each decimel number when it is rounded to the nearest whole number ​
PtichkaEL [24]

Answer:

  1. 5
  2. 6
  3. 6
  4. 5

Remember the decimal <em>hundredths</em> rounding ruleset.

  • If a decimal is below .50, round down.
  • If a decimal is .50, round up.
  • If a decimal is above .50, round up.

View this array below to get a better image.

\left[\begin{array}{ccc}0.49(down)&0.50(up)&0.51(up)\end{array}\right]

So, for example, if you had 6.51, you would round that up to 7, and if you had 8.47, you would round that to 8

6 0
2 years ago
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