Express (sin 67° + cos 75°) in terms of trigonometric ratios of the angle
between 0° and 45°.
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cos23 + sin15

Step-by-step explanation:

sinQ = cos(90-Q)

cosQ = sin(90-Q)

thus = sin67+cos75=

cos(90-67) + sin(90-75)

= cos23 + sin15

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walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.