Answer:
cos(F) = 9/41
Step-by-step explanation:
The triangles are similar, so you know that ...
... cos(D) = cos(A) = 40/41.
From trig relations, you know ...
... cos(F) = sin(D)
and
... sin(D)² +cos(D)² = 1
So ...
... cos(F) = sin(D) = √(1 -cos(D)²) = √(1 -(40/41)²) = √(81/1681)
... cos(F) = 9/41
_____
The ratio for cos(A) tells you that you can consider AB=40, AC=41. Then, using the Pythagorean theorem, you can find BC = √(41² -40²) = √81 = 9.
From the definition of the cosine, you know cos(C) = BC/AC = 9/41. Because the triangles are similar, you know
... cos(F) = cos(C) = 9/41
Answer:
300 euros
Step-by-step explanation:
1200 x 5 x 5=30000/100=300
Answer:
Is there a picture to go with this because otherwise it's not enough info...
Step-by-step explanation:
The answer is D.(1,-1) the reason is -1(y)-2*1(x)=-3 so, -1-2*1 is less than or equal to -3.
Answer:
Step-by-step explanation:
Find the quotient.
(4.86 × 109)
(2.43 × 103)
What is the exponent of the power in the quotient?
6
What is the coefficient in the quotient?
2
Which operation produced the exponent of the power in the quotient?
Subtracting the original exponents
