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Answer: Mean = (Sum of values)/(Number of values)

$Mean\n \n =\frac { 55+62+61+54+68+72+59+61+70 }{ 9 } \n \n =\frac { 562 }{ 9 } \n \n =62.4\quad mph\quad (1\quad d.p)\n \n$

Range = Highest Value - Lowest Value

$Range\n \n =72-54\n \n =18\n \n$

Related Questions

Please help me with this question, as soon as possible.
Given the roll of paper towels below how much plastic would be needed to cover the role so it can be sold given the diameter of the role is 10 inches and the height is 13 inches
Complete the inequality with >, <, or =.72 _____ 34
The height of a meeting room that's measures 19 m by 12 m is 3 m. Glen plans to apply 2 coats of paint to the walls of the room. A 4 L can of paint covers about 30m What is the surface area of the walls to be painted? How many cans of paint will Glen need?
Can -2/5 be simplified

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. David invested $220 in a savings account that offers a 3% return on the investment. The value of David's investment will be at least $400 after a period of years. Hint: Use the formula A = P(1 + r)t, where A is the amount after t years, P is the amount invested, r is the rate of interest, and t is the time period. Use a calculator to compute the answer, and round it off to the nearest year.

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Answer:

The answer is 23 years.

Step-by-step explanation:

We will use the formula :

$A=P(1+r)^(t)$

Here P = 220

r = 3%

A = 400

Putting these values in the formula we get,

$400=200(1+0.03)^(t)$

$2=1.03^(t)$

Taking log on both sides,

ln(1.03)t=ln 2

$t=(ln(2))/(ln(1.03))$

t=23.44 or rounding to nearest, t=23 years

The graph of the function can be shown as below.

What is the grade average of 75 70 90 60 50 90 70

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the average can be found by adding them all up and dividing that number by the number of items. If the result have you a number that's more than the largest or less than the lowest, you did it wrong.

(75+70+90+60+50+90+70)/7
= 505/7
=72.14

A square acre of land is 4,840 square yards. The length of one side of the square is between which of the following?A 14 yd and 48 yd
B 69 yd and 70 yd
C 98 yd and 100 yd
D 124 yd and 139 yd

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Hi there!

If we know the area is a square, we can use the formula for the area of a square to figure out what one side would be between. Knowing the value allows us to determine what it would be between. In this case, it is between 69 and 70.

WORK:
squareroot(4840) = 69.6

ANSWER:
Option B - 69 yd and 70 yd

Greg kicked the soccer ball 75 feet .how many yards did he kick the ball

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greg kicked it 25 yards

The antagonist usually brings __________ to the __________.peace . . . main character
irony . . . plot
conflict . . . protagonist
resolution . . . setting

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The correct answer would be conflict and protagonist. The antagonist usually brings conflict to the protagonist. A protagonist is the main character in the story who always embodies the good character and always brings peace and order in the story. An antagonist is the character in the story that acts as the enemy or opponent of the protagonist who is always against his/her intentions.

conflict . . . protagonist

Hope it helps

9x-6y=-20 through (0,-4)

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To make the equation go through (0,-4) the new equation would be 9x + 5y = 20. We needed to change it from subtracting to adding so the direction of the line would go from going down to up too up to down. In slope-intercept form the original equation would be found by the following.

9x - 6y = 20

-6y = 20 - 9x

y = -20/6 - (-9/6x)

y = 9/6x - 20/6

y = 3/2x - 10/3

To make the perpendicular line, take the slope and apply the opposite and reciprocal.

y = -2/3x - 10/3

Best of Luck!

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