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dlinn [17]
2 years ago
14

What is the magnitude (size) of 6.8?

Mathematics
1 answer:
lidiya [134]2 years ago
7 0

Answer:

C. 6.8, because |6.8|= 6.8

Step-by-step explanation:

The magnitude of a directed number is a property that turns the number to a positive of its value. Thus, the magnitude of a negative number equals its positive value. Examples:

Find the magnitude of the following numbers:

i. -20

ii. 10

iii. -5

iv. 2

The magnitudes of the numbers can be expressed as:

i. |-20| = 20

ii. |10| = 10

iii. |-5| = 5

iv. |2| = 2

Therefore, the magnitude of 6.8 = 6.8, because |6.8|= 6.8.

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Consider a political discussion group consisting of 8 ​Democrats, 5 ​Republicans, and 5 Independents. Suppose that two group mem
Leya [2.2K]

Answer:

The probability of selecting two Independents is \frac{10}{153}.

Step-by-step explanation:

From the given information it is clear that:

​Democrats = 8

Republicans = 5

Independents = 5

Total number of member in the group is

8+5+5=18

We need to find the probability of selecting two Independents.

According to binomial distribution the total number of ways to select r items form n items is

^{n}C_r=\frac{n!}{r!(n-r)!}

Total number of ways to select 2 members from 18 members is

\text{Total possible outcomes}=^{18}C_2=\frac{18!}{2!(18-2)!}=153

Total number of ways to select 2 members from 5 Independents is

\text{Favorable outcomes}=^{5}C_2=\frac{5!}{2!(5-2)!}=10

The probability of selecting two Independents is

p=\frac{\text{Favorable outcomes}}{\text{Total possible outcomes}}

p=\frac{10}{153}

Therefore the probability of selecting two Independents is \frac{10}{153}.

7 0
3 years ago
Out of the 21 students in mrs Clark’s class by 3/7 of the class are boys
saul85 [17]

Answer:

There are 9 boys and 12 girls in mrs Clark's class

Step-by-step explanation:

We are given that mrs Clark has 21 students, of which 3/7 are boys

In order to find the number of boys, we multiply 21 by 3/7 which results in 9

This means there are 9 boys and then we just simply subtract 9 from 21 in order to find the number of girls 21-9=12

therefore there are 9 boys and 12 girls in mrs Clark's class

7 0
3 years ago
Read 2 more answers
A store sells 6 T-shirts for $59.34. What is the unit cost per T-shirt?
Zinaida [17]

Answer:

$9.89

Step-by-step explanation:

5 0
3 years ago
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In 2015, the price of a business math text rose to $200. This is 8% more than the 2014 price. What was the old selling price?
lakkis [162]
Old price=new price/(1+inflated rate)
=2000/(1+1.08)
=185.19 (approximately)
7 0
3 years ago
Emilie is training for her next track meet. She is running on
Shkiper50 [21]

Answer:

32 laps

Step-by-step explanation:

If each mile is 1600 meters, she will need to run 4 laps per mile. To run 8 miles, multiple the laps for one mile (4) by the total number of miles (8) to get the total laps necessary (32).

Hope this helps!

4 0
3 years ago
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