What are the solutions to the equation x2 = 81?
A.
9 and –9
B.
40.5 only
C.
40.5 and –40.5
D.
9 only

Question

Asked 3/24/2014 4:05:16 PM

Updated 3/24/2014 9:22:41 PM

2 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [3/24/2014 9:20:13 PM]

jeifunk|Points 18529|

Question

Asked 3/24/2014 4:05:16 PM

Updated 3/24/2014 9:22:41 PM

2 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [3/24/2014 9:20:13 PM]

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3

The solutions to the equation x^2 = 81 is A. 9 and –9.

Added 3/24/2014 9:20:31 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [3/24/2014 9:30:02 PM]

3

The lengths of the legs of a right triangle are 15 cm and 36 cm. The length of the hypotenuse is: sqrt(15^2 + 36^2) = 39 cm.

Added 3/24/2014 9:22:41 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [3/24/2014 9:30:03 PM]

On a soccer team, 11 out of 17 players surveyed say they had two or more siblings. The league has 850 players. Which is the best prediction of the number of players in the league that have two or more siblings?
A.
550
B.
300
C.
180
D.
50

Question

Not Answered

Updated 3/25/2014 7:42:41 PM

1 Answer/Comment

The length of one leg of a right triangle is 21 ft and the length of the hypotenuse is 29 ft.
What is the length of the other leg?
A.
20.0 feet
B.
25.0 feet
C.
35.8 feet
D.
50.0 feet

Question

Updated 3/24/2014 11:17:50 PM

1 Answer/Comment

A square tray has an area of 196 square inches.
What is the length of one side of the tray?
A.
12 inches
B.
13 inches
C.
14 inches
D.
16 inches

Question

Updated 3/25/2014 7:45:42 PM

1 Answer/Comment

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