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Firdavs [7]
4 years ago
11

A rectangular field is 100 meters wide and 145 meters long. A coach asks players to run from one corner to the opposite corner d

iagonally across the field. How much shorter is it to run across the field than around it ( nearest tenth)?
Mathematics
1 answer:
spayn [35]4 years ago
3 0

Answer:

313.9

Step-by-step explanation:

running around the field is 100+100+145+145 = 490

across the field:

(100)^2 + (145)^2 = c^2

10000+21025 = c^2

c=176.1

490 - 176.1 = 313.9

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How to solve 54+36÷3-30​
Levart [38]

Answer:

36

Step-by-step explanation:

just do order of operations

3 0
3 years ago
Read 2 more answers
Solve x2−5x=8 by completing the square. Round your answers to the nearest hundredth.
Bogdan [553]

Answer:

x = \dfrac{5}{2} \pm {\dfrac{\sqrt{57}}{2}

Step-by-step explanation:

x^2 - 5x = 8

x^2 - 5x + \dfrac{25}{4} = 8 + \dfrac{25}{4}

(x - \dfrac{5}{2})^2 = \dfrac{57}{4}

x - \dfrac{5}{2} = \pm \sqrt{\frac{57}{4}}

x = \dfrac{5}{2} \pm {\dfrac{\sqrt{57}}{2}

5 0
3 years ago
one of the heaviest ranfalls recorded in greentown in a 24-hour period was 178.8 centimeters. If the ranfall was constant, how m
Ilya [14]
There will be 7.45 centimeters of rain fell during each hour.
6 0
3 years ago
Subtract the following complex numbers:<br> (4 + 4i) - (13 + 17i)
lesya [120]

Step-by-step explanation:

Your problem → (4 + 4i) - (13 + 17i)

(4i+4)-(17i+13)

=4i+4-17i-13

=4i-17i+4-13

=-13i-9

8 0
3 years ago
What am I supposed to put as an answer?? this is so confusing
kaheart [24]

The 'i' should go in front of the square root, not inside it.

So the answer should be i\sqrt{15}

--------------

The way they wrote the expression \sqrt{15}i is bit misleading as it might imply that the 'i' is under the square root. However the square root ends after the "5". It might be better to say (\sqrt{15})i so there is clearer separation. But sticking the "i" in front is also a valid option.

side note: the plus minus part is already handled so there's no need to worry about that.

8 0
3 years ago
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