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GrogVix [38]
3 years ago
5

The velocity-time graph for a cycle is shown

Mathematics
1 answer:
malfutka [58]3 years ago
5 0

Answer:

<u>a) 100m</u>

<u>b) 2m/s</u>

Step-by-step explanation:

a)==>> <u>2+4</u>+<u>6+8</u>+10(8) = 100m

b)==>> Variable "a" = change OVER time (\frac{change}{time}) = 8m/4s = 2m/s

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Ymorist [56]
It’s a proportional relationship because all of the points on the graph create a straight line
7 0
2 years ago
The circumference of a circle is 9 pi m. What is the area, in square meters? Express
Ksivusya [100]

Answer:

20.25 m²

Step-by-step explanation:

the area (A) and circumference (C) of a circle are calculated using the formulae

C = 2πr and A = πr² ( where r is the radius )

calculate the radius using the formula for circumference

2πr = 9π ( divide both sides by 2π )

r =  =  = 4.5, hence

A = π × 4.5² = 20.25π m²

8 0
2 years ago
Read 2 more answers
What is the five number summary for this data set?
MrRa [10]

Answer:

see explanation

Step-by-step explanation:

The median is the middle value of the data set in ascending order. If there is no exact middle then the median is the average of the values either side of the middle.

Given

3   8   14   19   22   29   33   37   43   49

                            ↑ middle is between 22 and 29

median = \frac{22+29}{2} = \frac{51}{2} = 25.5

The upper quartile Q_{3} is the middle value of the data to the right of the median.

29   33   37   43   49

               ↑

Q_{3} = 37

The lower quartile Q_{1} is the middle value of the data to the left of the median.

3   8   14   19   22

           ↑

Q_{1} = 14

The min is the smallest value in the data set, that is 3

The max is the largest value in the data set, that is 49

The 5 number summary is

3,  14,  25.5,  37,  49

8 0
3 years ago
Order: give Ceclor (cefaclor) 250 mg PO every 8 hours.
irinina [24]

Hello!

The answer is: 15 mL

Why?

From the statement we have that 250 mg need to be given every 8 hours, we can calculate how many mg will be given each day (24 hours):

\frac{24Hours}{8Hours} = 3

So,

3*250mg=750mg a day

We also know that there are 50 mg cefaclor every 1mL,

So, to know how many mL will be given with 750mg, we just need to divide it by 50

\frac{750}{50} = 15

Therefore,

15mL or 750 mg of cefaclor will be given each day.

Have a nice day!

8 0
2 years ago
When finding the area of a quadrilateral, what operation would I use and why?
lilavasa [31]

Use the formula width x height = area. If the width is 4 inches and the height is 2 inches, the area equals 8 inches squared.

3 0
2 years ago
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