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3 years ago

How to find Sin67/2 and 97/2 without using the calculator? I need a step by step explanation plz...

Mathematics

1 answer:

yaroslaw [1]3 years ago

4 0

10 for for for for for f

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Suppose you surveyed a group of students to see how many CDs they owned. The results are displayed in the

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You surveyed 30 students to see how many CDs they owned.

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2 years ago

Candice spent 5 1/4 hours doing her homework. Her brother, Ronald, spent 1/2 that number of hours doing his homework. How many h

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Let

x-----> the number of hours that Candice spent doing her homework

y-----> the number of hours that Ronald spent doing his homework

we know that

$x=5\frac{1}{4}\ hours$

convert mixed number to an improper fraction

$5\frac{1}{4}\ hours=\frac{5*4+1}{4}= \frac{21}{4}\ hours$

$x=\frac{21}{4}\ hours$ -------> equation A

$y=\frac{1}{2}x$ ------> equation B

Substitute equation A in equation B

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convert an improper fraction to a mixed number

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How to find Sin67/2 and 97/2 without using the calculator? I need a step by step explanation plz...​

How to find Sin67/2 and 97/2 without using the calculator? I need a step by step explanation plz...