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Rufina [12.5K]
3 years ago
5

For each ordered pair, determine whether it is a solution to 2x - 5y=11.

Mathematics
1 answer:
Sidana [21]3 years ago
5 0

Answer:

(3, -1)

Step-by-step explanation:

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Answer:

4

Step-by-step explanation:

That problem is equal to (2•2•2•2) -(2•2•2+2•2)

Or

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4 years ago
Evaluate the following expression. (8^1)0<br> Possible Answers are:<br> 0 <br> 1<br> 8
Yanka [14]

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(8^1)^0

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4 0
4 years ago
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In ∆PQR, PQ = 39 cm and PN is an altitude. Find PR if QN = 36 cm and RN = 8 cm.
OLEGan [10]

Use the Pythagorean theorem two times:

NQ^2+NP^2=QP^2\\\\36^2+h^2=39^2\\\\1296+h^2=1521\qquad\text{subtract 1521 from both sides}\\\\h^2=225\to h=\sqrt{225}\\\\\boxed{h=15\ cm}

second time:

PR^2=RN^2+NP^2\\\\x^2=8^2+15^2\\\\x^2=64+225\\\\x^2=289\to x=\sqrt{289}\\\\\boxed{x=17\ cm}

<h3>Answer: PR = 17 cm.</h3>

8 0
3 years ago
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