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Zepler [3.9K]
3 years ago
11

If A and B are two angles in standard position in Quadrant I, find cos( A + B) for the given function values.

Mathematics
1 answer:
Naddik [55]3 years ago
3 0
You have to find the cos of angle A, so use the Pythagorean equation and trig laws to find the other side of the triangle created by angle A. 3^2 + x^2 = 5^2. x=4. This means cos(A) = 4/5). Make both cos (A) and cos (B) have equal denominators, and add. 148/185 + 60/185 = 208/185. This answer is correct, though it doesn’t appear to be any of the answers you wrote, so either those answers are wrong or you wrote something incorrectly in the problem.
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3 years ago
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Determine the x and y intercepts <br><br> y = -x^2 + 6x - 8
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Big will's ice cream cone contains 16 grams of saturated fat. This is 80% of his total daily allowance. What big will's total da
Ahat [919]

Answer:

20 grams

Step-by-step explanation:

Let x be the total allowance of fat

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8 0
3 years ago
Which inequalities are true? Select the four correct answers.
tiny-mole [99]

The correct anwer is option C and option E which are √4<√5<√√55 and √8<2.9<√√9.

<h3>What is inequality?</h3>

Inequality is the relationship between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”.

The two inequalities √4<√5<√√55 and √8<2.9<√√9. are true.

√4<√5<√√55  → 2 < 2.23 < 7.41

√8<2.9<√√9    → 2.82 < 2.9 < 3

Therefore correct answers is option C and option E which are √4<√5<√√55 and √8<2.9<√√9.

To know more about inequality follow

brainly.com/question/24372553

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2 years ago
a car is traveling at a speed of 108 kilometers per hour. What is the cars speed in kilometers per minute? How many kilometers w
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Step-by-step explanation:

7 0
3 years ago
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