Which set of numbers represent the lengths of the sides of a right triangle?

1 answer:

5 0

The basic deal is a^2 + b^2 = c^2
A= incorrect, 81 + 100 does not equal 121.
B= incorrect, 64 + 144 does not equal 256.
C= incorrect, 256 + 1024 does not equal 1280
This leaves D.

D must be a right triangle.

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Carl puts $1.10 in his penny bank everyday in the moth of July (31 days). His total savings was $55 at the end of June. What is

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C) About $85

Step-by-step explanation:

Please consider the complete question.

Carl puts $1.10 in his penny bank every day in the month of July (31 days). His total saving at the end of June is $55.00. What is the best estimate at the end of July?

A) about $25

B) about $115

C) about $85

D) about $66

First of all, we will round $1.10 to nearest whole number and round 31 to nearest tens as:

$\$1.10\approx \$1$