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pickupchik [31]
3 years ago
12

Taking the square root of which of the following expressions gives the length of the line segment shown?

Mathematics
2 answers:
Brums [2.3K]3 years ago
4 0

Answer:

  4^2 + (-7)^2

Step-by-step explanation:

The square of the distance is given by the distance formula as ...

  d^2 = (x2 -x1)^2 + (y2 -y1)^2 = (3 -(-1))^2 + (-5-2)^2

  = 4^2 +(-7)^2 . . . . . matches the second choice (sort of)

_____

<em>Comment on notation</em>

Clearly, you understand the use of the caret (^) to signify exponentiation. The number 42 is very different from the value of 4^2 = 16. A caret is required.

Brums [2.3K]3 years ago
3 0

the answer is 4^2 + 7^2, i had it on odyssey ware

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How do you find LCM? please give a good explanation!
Anna [14]

Answer:

72xy1

Step-by-step explanation:

becuz the multiple of 9,6 and 24 is 72 and the multiple of x is 1x which is just x and the multiple of y is 1y

8 0
3 years ago
A roll of carpet that contains 250 yd of carpet will cover how many rooms if each room requires 7 3/4 yards of carpet?
iren [92.7K]

Answer: 32 room

Step-by-step explanation:

7\frac{3}{4} =\frac{4(7)+3}{4} =\frac{28+3}{4} =\frac{31}{4}=7.75

<u>If 1 room = 7.75 yd of carpet ⇒ x rooms = 250 yd of carpet</u>

Use proportions & cross-multiply to solve:

\frac{1}{7.75} =\frac{x}{250}\\7.75x=250\\x=\frac{250}{7.75} =32.258

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3 0
2 years ago
Which property is illustrated by the following?<br><br> a + 4 = a + 4
iogann1982 [59]

Answer: communitive

Step-by-step explanation:

The opposite sides have the same equations

8 0
2 years ago
Read 2 more answers
HELP PLEASEEEE!!
emmasim [6.3K]

31.0 degrees

TanX wich is 30/50

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7 0
2 years ago
If a triangle has 3 side one is 12 one is 72 what is the last sude
harkovskaia [24]

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another side is 72, lets call this side c²

this triangle must follow Pythagoras therom if it is right angled, that is a²+b²=c²

where a and b are the two shorter sides and c is the longest side (called the hypotenuse) opposite the right angle

to find the last side you do 72² - 12² = 5040

but it is the square root of 5040 which is 70.99 (two decimal places) if you want it in decimal form, if you want it in surd form it is √5040

7 0
3 years ago
Read 2 more answers
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