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3 years ago

Use rounding or compatible numbers to estimate 222 plus 203

1 answer:

6 0

200 can be rounded down to 200, which is easy to add with. Thus, an estimate is 222+200=422.

Alternatively, you could round 222 up a bit, to get 225+200=425. This is actually the correct answer, but this rounding doesn't make the calculation easier, so if you needed a quick estimate I'd go with the first option.

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Ashley has a sprinkler that has several varieties of coverage. The quarter circle sprinkler head sprays water a distance of up t

alukav5142 [94]

Answer:

314 square feet

Step-by-step explanation:

we know that

The area that will be covered by the spray of the quarter-circle sprinkler head, is equal to the area of a quarter circle with radius of 20 feet

The area of a quarter circle is

$A=\frac{1}{4}\pi r^{2}$

we have

$r=20\ ft$

$\pi =3.14$

substitute

$A=\frac{1}{4}(3.14)(20)^{2}=314\ ft^2$

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3 years ago

Researchers are investigating whether people who exercise with a training partner have a greater increase, on average, in target

bulgar [2K]

Answer:

1 - If method I is used, population of generalization will include all those people who may have varying exercising habits or routines. They may or may not have a regular excersing habit. In his case sample is taken from a more diverse population

2 - Population of generalization will include people who will have similar excersing routines and habits if method II is used since sample is choosen from a specific population

Step-by-step explanation:

Past excercising habits may affect the change in intensity to a targeted excersise in different manner. So in method I a greater diversity is included and result of excersing with or without a trainer will account for greater number of variables than method II.

7 0

3 years ago

Find (a) the perimeter and (b) the area of the figure. Use 3.14 or 22 22 for 1. Round your answer to the nearest hundredth, if n

Vedmedyk [2.9K]

Step-by-step explanation:

i dont know

3 0

3 years ago

6 times what would = 73

padilas [110]

Answer:

12.1 repeating

Step-by-step explanation:

73/6=12.16666666...

6 0

3 years ago

What is the equation of M=3,x=4,and b=9

natita [175]

Answer:

21=3(4)+9

Step-by-step explanation:

Assuming that the equation that you are trying the get is y=mx+b, plug in m, x, and b to get:

y=3(4)+9

y=12+9

y=21

Please be more specific so that you get the answer you need

6 0

3 years ago