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rjkz [21]
2 years ago
9

The a value of a function in the form f(x) = ax2 + bx + c is negative. Which statement must be true?

Mathematics
2 answers:
timofeeve [1]2 years ago
6 0
The vertex is maximum
Mice21 [21]2 years ago
3 0

Answer:

A) the vertex is a maximum.

Step-by-step explanation:

The function f(x) = ax^2 + bx + c, where is "a" is negative.

a < 0, means the graph of the parabola opens down. when the parabola opens down we will have the vertex as a maximum point.

Therefore, answer is A) the vertex is a maximum.

Hope this will helpful.

Thank you.

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Find the length of each arc. Round your answer to the nearest tenth.
Ede4ka [16]

Answer:

give the full questions please

6 0
3 years ago
The bowling lanes charge an hourly fee for bowling and $2 to rent shoes for the day. Gerry rented shoes and bowled for 2 hours a
kodGreya [7K]

Answer:

d) f(x) = 5x + 2

Step-by-step explanation:

First we need to identify the variables and how they fit into the equation. in this case we know that the equation is f(x) = mx + b where f(x) is the total cost, m is the hourly cost, x is the number of hours bowled, and b is the price of the shoes.

Now, we need to solve for the hourly cost, so to do this we plug in all the known information to get 12 = m(2) + 2

To solve we need to isolate the variable by first subtracting 2 on both sides to get 10 = m(2) and then dividing both sides by 2 to get 5 = m.

Finally, since we now know that the hourly cost is $5 we can plug this information back into the equation to get f(x) = 5x + 2

6 0
3 years ago
Explain how you can use multiplication to find the quotient 3/5 divided by 3/15. Then evaluate the expression.
stiv31 [10]
3/5 is 60% 3/15 is 20% divide 60% by 20% and you have a 3 hope this helps
4 0
3 years ago
Sixty percent (60%) of those who attended the soccer game were parents. There were 120 people who
IrinaVladis [17]

Answer:

72

Step-by-step explanation:

<u>Given:</u>

There were 120 people in total.

60% were parents.

<u>To find:</u>

Number of parents attended.

Solution:

1. 60% of 120

It can also be written as:

\frac{60}{100}\times \frac{120}{1}

Simplify

  • Cancel zeros

\frac{60}{100}\\\\=\frac{6}{10}

  • Divide by common factor (2)

\frac{6\div2}{10\div2}=\frac{3}{5}

2. \bold{\frac{3}{5}\times \frac{120}{1}}

Multiply

\frac{3\times120}{5\times1} = \frac{360}{5}

Divide

\frac{360}{5}= 360\div5=72

Therefore, 72 parents attended the game.

4 0
2 years ago
Sea level is considered to be 0 feet. A probe released at sea level dropped at a constant rate for 3.25 minutes, reaching an ele
HACTEHA [7]

d = r * t

d/t = r

-35.75 / 3.25 = r

-11 = r

r = -11 ft / min

d = r*t

d = -11 ft/min * 1 min

d = -11 ft

The probe is 11 feet below sea level after 1 minute

5 0
2 years ago
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