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joja [24]
3 years ago
9

HELP please!!!! I WILL GIVE BRAINLY

Mathematics
2 answers:
Inessa [10]3 years ago
8 0

Answer:

\sqrt{57}  = 7.5

\sqrt{26}  = 5.1

atroni [7]3 years ago
7 0

Answer:

7. 7.6

8. 5.1

Step-by-step explanation:

For number seven we know that the square root of 49 is 7 and the square root of 64 is 8. Because 57 is in the middle of these numbers we can assume that the answer is around 7.5 but because it is closer to 64 the proper estimate would be about 7.6. You can check this by plugging the equation into a calculator.

For number eight we know that the square root of 25 is 5. 26 is just over 25 so it's square root must be just over 5. This leads you toward the estimate of 5.1. You can also double check this with a calculator.

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A student solved for the radius of a circle with a circumference of 12π
padilas [110]

Answer:

Step 4 is incorrect  he did not divide correctly from step3 to step 4

Step-by-step explanation:

The circumference of a circle is

C = 2 * pi *r

We know the circumference is 12 pi

12pi = 2 pi *r

Divide each side by 2 pi

12 pi/2pi = 2pi r/ 2pi

6 = r

From step 3 The student did not cancel the pi in the top and the bottom on the right hand side to isolate r

In step 4 he got 6 =pi r  instead of pi

3 0
3 years ago
Lin bought 1 pretzel from a snack cart that was marked $4.50. Why did she pay $4.83?
marshall27 [118]

Answer:

Sales tax

Step-by-step explanation:

You might have like 3% sales tax which is 3 percent of the original price added back onto it.

Sales tax is a tax that is put onto wanted and gourmet things, so chocolate isn't a needed item in life, so you have sales tax on it. On something like bread or meat, there might not be sales tax since you need food to survive. If something cost $100, and there is 3% sales tax, you will pay 103 dollars since 0.03 of 100 is 3.

4 0
3 years ago
Brad has already cycled 28 kilometers this year, plus he plans to cycle 1 kilometer during each trip to work. After 21 trips to
zepelin [54]

Answer:

49 kilometers

Step-by-step explanation:

Since he cycles 1 km for each trip, he will have cycled 21 km after 21 trips.

Add this to his existing amount of km:

28 + 21

= 49

So, he will have cycled a total of 49 kilometers

6 0
3 years ago
Read 2 more answers
PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!
Serggg [28]
The answer would be 53. This can be found by add 127 twice (xy and uz) and subtracting it from 360. This would give you 106 and you would divide it by 2 for the 2 angles left and get the answer.
7 0
3 years ago
What is the equation of the circle described below. Center (-1, 4), radius = √3
Brums [2.3K]

same problem asked and answered here:


brainly.com/question/3583159





7 0
3 years ago
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