What is the value of the expression (2 1/4 - 7 1/2) - (-1 1/4)

Mathematics

2 answers:

____ [38]3 years ago

7 0

Answer:

=24/142

=-188/4+111/4

= -7/4 ANS.

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JulsSmile [24]3 years ago

5 0

Answer:

-4

Step-by-step explanation:

2 1/4 - 7 1/2 = -5.25

-5.25 - (-1 1/4) = -4

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Step-by-step explanation:

To reach point D from point C, you need to add 4 to the x-value of point C and take away 6 from the y-value. These numbers are the sides of the hypothetical triangle.

The Pythagorean Theorem states that $a^2+b^2=c^2$ . If we plug the side lengths in for a and b, we get $4^2 + 6^2 = c^2$ . This can be simplified to $16+36=c^2$ , or $52 = c^2$ . If we root both sides, we find that c is equal to $\sqrt{52}$ , which is slightly more than 7, at around 7.2.