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3 years ago

What is the equation of the axis of symmetry of a parabola if its x-intercepts are –3 and 5?

Mathematics

1 answer:

melisa1 [442]3 years ago

6 0

Answer:

x = 1

Step-by-step explanation:

The axis of symmetry is a vertical line and is located at the midpoint of the x- intercepts, thus

x = $\frac{-3+5}{2}$ = $\frac{2}{2}$ = 1

That is equation of symmetry is x = 1

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What is 7 times 7 over 1 equal

Alex17521 [72]

Answer:

Step-by-step explanation:

7*7/1=49 This is because 7/1 equals 7 since 1 goes into 7, 7 times so really the equation 7*7 which still equals 49.

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3 years ago

Read 2 more answers

Which of the following is NOT a statistical?

morpeh [17]

The correct answer is C- How many times did you go swimming last week.

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4 years ago

What is 55% as a decimal

salantis [7]

To change a percentage to a decimal, first note that the percentage is:

55.0%

To change a percentage to a decimal, move the decimal point to the left two place values, and drop the percentage sign.

55.0% = 0.55

0.55 is your answer

hope this helps

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3 years ago

What is the first quartile, Q1, of the following distribution?

Nostrana [21]

Answer:

I would go with C only because you have the find the median of the lower half of the data set This means that about 25% of the numbers in the data set lie below Q1 and about 75% lie above Q1.

Step-by-step explanation:

Lower quartile (xL): 26.5

Median (xm): 37

Upper quartile (xU): 44.5

5 0

4 years ago

You have 8 gallons of lemonade to sell. You use cone-shaped cups that are 9 centimeters in diameter and 12 centimeters tall. Eac

andre [41]

You will need 119 cups to sell all of the lemonade.

Step-by-step explanation:

Given,

Diameter of cups = 9 cm

Radius of cup = $\frac{Diameter}{2}=\frac{9}{2}=4.5\ cm$

Height of cups = 12 cm

We will find volume of cup.

$Volume = \frac{1}{3}\pi r^2h\\$

Putting all the values

$Volume=\frac{1}{3}(3.14)(4.5)^2(12)\\\\Volume=\frac{1}{3}(3.14)(20.25)(12)\\\\Volume= \frac{763.02}{3}\\\\Volume= 254.34\ cm^3$

Therefore;

Each cup can hold 254.34 cubed centimeter of lemonade.

Number of gallons = 8

1 gallon = 3785 cm³

8 gallons = 3785*8 = 30280 cm³

Let,

x = Number of cups

Volume of lemonade in one cup * Number of cups = Volume of 8 gallons

254.34x=30280

Dividing both sides by 254.34

$\frac{254.34x}{254.34}=\frac{30280}{254.34}\\x=119.05$

Rounding off to nearest whole number

x = 119

You will need 119 cups to sell all of the lemonade.

Keywords: volume, division

Learn more about volume at:

#LearnwithBrainly

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3 years ago