When the radius doubles, does the area of the circle double? A) 4π cm2; 8π cm2; NO
B) 4π cm2; 16π cm2; NO
C) 4π cm2; 16π cm2; YES
D) 4π cm2; 8π cm2; YES

Answers

Answer 1

Answer: example
from pir^2 ro pi(2r)^2
pi(2r)^2=pi4r^2=4pir^2

basicaly we look for any no options and ones where second is 4 times first

B

pi2^2, if it is double, pi4^2

B

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A ball is thrown down from a balcony with a vertical velocity (in ft/s) given by V(t)= –32t – 10. Chose the inequality that represents the time for which the velocity of the ball will be between –90 and –58 ft/s
How do you work out 3x+7-6x=5x-1

Bill cleans house windows for $20/houseplus $1/window. If your house has 22
windows; how much will it cost?

Answers

Answer:

$20 (house) + $22 (windows) = $42

It will cost $42 to have Bill clean a house with 22 windows.

$42

explanation:

$1 per window x 22 windows =$22

$20 per house x $22 = $42

Point-slope form of y=15x+325

Answers

Answer:

y−325=15⋅(x+0)

Step-by-step explanation:

From a set of eight marbles, five red and three white, we choose one at random. What are the odds in favor of choosing a red marble?

Answers

There's a 5/8 chance that you will choose the red marble and there's only 3/8 chance for a white marble.

The distance between Vancouver and Winnipeg is approximately 1850 km in a straight line. The distance on a map is 3.7 cm. Write a scale statement for the map. What scale factor was used to make the map.

Answers

3.7cm on the map represents 1850km in reality

3.7cm : 1850km

1cm : 1850/3.7 km

1cm : 500km

Scale statement for map is : 1cm : 500km.

That is 1cm on map represents 500km.

1cm : 500km. Recall 1km = 1000m = 100 000cm

1cm : 500* 100000cm

1cm : 50 000 000cm

1: 50 000 000.

Scale factor is 50 000 000.

Final answer:

The scale of the map is 1 cm : 500 km, meaning 1 cm on the map corresponds to an actual distance of 500 km on the ground. This is the scale factor used to create the map.

Explanation:

The scale of a map is a ratio that represents the relationship between the distance on the map and the actual distance on the ground. In this case, the actual distance between Vancouver and Winnipeg is 1850 km, while the distance on the map is 3.7 cm. Therefore, the scale of the map can be represented as 1 cm : 500 km (because 1850 km / 3.7 cm = approximately 500 km).

This means that 1 cm on the map represents an actual distance of 500 km on the ground, which is the scale factor used to create the map. Therefore, the scale statement for the map would be "1 cm on the map represents 500 km on the ground" or it can be written shorthand as 1:50,000,000 (considering 1 km = 1,000,000 cm).

Learn more about Map Scale here:

brainly.com/question/24486949

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Solve the equation. Show your work.

1/a =6/18

Answers

1 6
--- = ---
a 18

- simplify 6/18, which should be 1/3. therefore, a = 3.

suppose it has been determined that the probability is 0.6 that a rat injected with cancerous cells will live. if 35 rats are injected, how many would be expected to die

Answers

Answer:

Calculating this, we find that approximately 14 rats would be expected to die.

Step-by-step explanation:

determine the number of rats expected to die, we need to multiply the probability of dying (1 - 0.6 = 0.4) by the total number of rats injected. Probability of dying = 1 - Probability of living = 1 - 0.6 = 0.4 Number of rats expected to die = Probability of dying * Total number of rats injected = 0.4 * 35

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What is the value of x? -15 - x= -6

Donovan bought 5 1/2 kilograms of flour for $8.25 how much is the unit rate per kilogram of flour?

4m + 9 + 5m - 12 = 42

Add: 7/8 + 5/6 .......