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2 years ago

Complete the following fact box . Add the number in each row with the number in each column

Mathematics

1 answer:

OverLord2011 [107]2 years ago

8 0

Umm It’s 161 when you add all of them

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How do you decide where to shade an inequality whose boundary does not go through the origin?

In-s [12.5K]

Answer:

Step-by-step explanation:

basically, you have to look at the inequality. it is the same all around. so if the inequality has less than or equal too, or greater than or equal too, you need to have a thick solid line representing your function. if it is just less than or greater than, use a dotted line. to determine whether the shading goes above or below, you look at the in equality. greater than is above, and less than is below

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2 years ago

Mrs. Torres wants to know how many students wear thelr uniforms. In order to gather data, she stands by the front door and recor

Mekhanik [1.2K]

Answer:

Observational Study

Step-by-step explanation:

Because she stands by the front door and records each student

5 0

2 years ago

In a race between 18 people, how many ways can the top 5 finishers be arranged?

snow_lady [41]

Answer:

Step-by-step explanation:

This is permutation, since order matters. The formula for us is

₁₈P₅ = $\frac{18!}{(18-5)!}$ which simplifies to

₁₈P₅ = $\frac{18*17*16*15*14*13!}{13!}$

The factorial of 13 cancels out on the top and bottom leaving you with

₁₈P₅ = 18 × 17 × 16 × 15 × 14

which comes to 1,028,160 ways

Another way to look at it is: the first 5 people of 18 finish and the others you don't care about. Once the first place person is first, there are only 4 of the 18 left to finish in second place. Then there are only 3 left to finish in third place, etc. So if we use that reasoning, we don't even need to use the formula, we can just say

18 * 17 * 16 * 15 * 14 and those are the first 5 people of 18 to finish.

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3 years ago

A hiker walked 12.8 miles from 9:00 a.m. to noon. He walked an additional 17.2 miles from 1:00 p.m. to 6:00 p.m. What is his ave

marishachu [46]

The average speed is the distance divided by the time.

Total distance:
12.8 miles + 17.2 miles = 30 miles

Total time:
noon - 9:00 a.m. = 3 hours
6:00 p.m. - 1:00 p.m. = 5 hours
Total time = 3 hours + 5 hours = 8 hours

average speed = 30 miles / 8 hours = 3.75 miles per hour

6 0

3 years ago

6 divided by 160 step by step<br> I need the work for it

never [62]

Answer:

$\frac{6}{160} = \frac{3}{80} = .0375$

Step-by-step explanation:

do yo want it as a decimal or a fraction?

7 0

2 years ago

Read 2 more answers