Which is longer: 180 sec or 3 mins? Explain how you decided.

Answers

Answer 1

Answer: none of them is long because 3 minutes have 180 seconds they both are equal . you will be wondering how i know it same well one minute have 60 seconds so 60+60+60 = 180 secs

Answer 2

Answer: they are both equal because 60 sec are in a minute and 180 = 3 minutes

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Y= -2x-9 in standard form

suppose that a family has an equally likely chance of having a cat or a dog. If they have two pets, they could have 1 dog and 1 cat, they could have 2 dogs, or they could have 2 cats. what is the theoretical probability that the family has two dogs or two cats

Answers

The theoretical probability that the family has two dogs or two cats is 1/3.

Answer:

1/3

Step-by-step explanation:

Make a box and whisker plot of the data. 21, 21, 22, 20, 13, 13, 27, 24
1. is A
2. is B
3. is C
4. is D

Answers

The required whisker plot of the data is given by A . Option A is correct.

What is a box plot?

A straightforward method of expressing statistical data on a plot in which a rectangle is drawn to represent the second and third quartiles, with a vertical line inside to indicate the median value. Horizontal lines on both sides of the rectangle show the lower and upper quartiles.

Here,

To create a box and whisker plot, we first need to find the minimum and maximum values, the median, and the first and third quartiles of the data set.

The minimum value is 13, and the maximum value is 27. To find the median, we first need to order the data set from smallest to largest:

13, 13, 20, 21, 21, 22, 24, 27

The median is the middle value, which in this case is the average of the two middle values: (21 + 21) / 2 = 21.

To find the first and third quartiles, we divide the data set into two halves at the median and find the median of each half. The first quartile (Q1) is the median of the lower half, and the third quartile (Q3) is the median of the upper half.

Lower half: 13, 13, 20, 21

Upper half: 21, 22, 24, 27

Q1 = (13 + 20) / 2 = 16.5

Q3 = (22 + 24) / 2 = 23

Thus, from the above calculation, the required whisker plot of the data is given by A . Option A is correct.

Learn more about box plots here:

brainly.com/question/1523909

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4. is D because Median: 21
Minimum: 13
Maximum: 27
First quartile: 14.75
Third quartile: 23.50
Interquartile Range: 8.75

Eight more than the number of children is 24

Answers

$x-the\ number\ of\ children\n\nx+8=24\ \ \ |subtract\ 8\ from\ both\ sides\n\n\boxed{x=16}$

In February 2010, the population of the world wasapproximately 6 800 000 000 people.
Another way of writing this number is
a.6.8 × 10^8
b.6.8 × 10^9
c.68 × 10^9
d. 68 × 10^10

Answers

The correct choice is 'B'. The correct exponent is +9. In order to change 6.8 into 6,800,000,000 you have to move the decimal point 9 places in the LARGER direction.

The answer to your question is A.) , because there are 8 zeros which make it to the power of 8, by 10.

What is the approximate perimeter of a semicircle with a radius of 9mm? Use pi as 3.14.
Express your final answer to the nearest hundredth.

Answers

Act like it's a whole circle and find the perimeter, then divide by 2.

P = 2 * pi * r

P = 2 * 3.14 * 9

P = 56.52

Now divide by 2:

P = 28.26

Answer:

I took the test and the answer is 46.26.

Step-by-step explanation:

What is the value of x when solving the equation -2x+(-8)=2x+8 using algebra tiles?x= -4
x= -2
x= 2
x= 4

Answers

Answer: The answer would be -4

Step-by-step explanation:

Answer:

-4

I did the exam trust me ok

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