The value of the cos P + cos Q is 7/5 if sin Q = 4/5 after applying the identities of trigonometric.
<h3>What is trigonometry?</h3>
Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
We know that:
P + Q are complementary, which means that
P+Q = 90°
Then R is a right angle, i.e. it measures 90°.
sin(90-x) = cos (x)
cos(90-x) = sin (x)
Then sinQ = 4/5
cos(90-Q) = cosP = 4/5
Now sin²(P) + cos²(P) = 1
sin²(P) = 1 - cos²(P)
sin²(P) = 1 -[4/5]² =9/25
sin(P) = 3/5
cos(Q) = sin(P) = 3/5
cos(P) + cos(Q) = 4/5 + 3/5 = 7/5
Thus, the value of the cos P + cos Q is 7/5 if sin Q = 4/5 after applying the identities of trigonometric.
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Answer: I think its C
Step-by-step explanation: My sister helped me, shes in collage!
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Answer:
simple ( principal *rate*time)/100.
3500*4*10/100 = 1400 interest
account balance =3500+1400=4900
compound p(1+r)^t
3500(1+.04)^10 =3500* 1.480=5180
interest earned = 5180-3500= 1680
how much more interest. ; 1680-1400=280
Answer:
2 1/12 cups of flour
Step-by-step explanation:
To get how much more flour Cameron needs, simply subtract how much flour she currently has (2 2/3) from the amount the recipe calls for (4 3/4).
4 3/4 - 2 2/3
You can make these into improper fractions to allow for easier subtraction.
19/4 - 8/3
In order to subtract them you must find a common denominator.
3 x 19/ 3 x 4 - 4 x 8/ 4 x 3 (Sorry for how weird this step looks)
57/12 - 32/12 = 25/12 or 2 1/12 cups of flour
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