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Part (c)
We'll use this identity
to say
Similarly,
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The key takeaways here are that
Therefore,
The identity is confirmed.
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Part (d)
Similarly,
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We'll square each equation
and
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Let's compare the results we got.
Now if we add the terms straight down, we end up with on the left side
As for the right side, the sin(A)cos(A) terms cancel out since they add to 0.
Also note how and similarly for the sin^2 terms as well.
The right hand side becomes but that's always equal to 1 (pythagorean trig identity)
This confirms that is an identity
Rayshawn will need 72 more bags of mulch.
126 minus 18
108 divided by 3
36 times 2
equals 72
Answer: x = 25
ab = 42
BC= 42
ac = 84
I need #6
Step-by-step explanation:
6. Find what x is by setting each value equal to each other
2x - 8 = x + 17
x - 8 = 17
x = 25
ab = 42
BC= 42
ac = 84
Answer: The general formula for exponential sequence or GP is
GP = arn-1 , ie ar raised to the power of n-1 where a is the first term , r is the common ratio and n is the number of terms. Now to find the 14th term we first find the common ratio (r) by dividing the second term by the first term of third by second term.
r = -10/5
=. -2.
Since n is 14-1 = 13. and a is 5
we now put those values in the formula to find the 14th term
T14 = ar^n-1
= 5 x (-2)^13
= 5 x -8192
=. -40,960
There the 14th term of the GP sequence
= -40,960
Step-by-step explanation: