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Work Shown:
If cos(A) = sin(B), then A+B = 90, where A & B are both acute angles in degree form.
In this case, A = 52, so,
A+B = 90
B = 90-A
B = 90-52
B = 38
Telling us that
cos(A) = cos(52) = 0.6157
sin(B) = sin(38) = 0.6157
cos(52) = sin(38)
6 cm
6 cm
6 cm
6 cm
360 cm2
216 cm2
72 cm2
288 cm2
Answer:
I believe that the answer is C: 72 cm²
Answer: the first term is 5
Step-by-step explanation:
In a geometric sequence, the consecutive terms differ by a common ratio. The formula for determining the sum of n terms, Sn of a geometric sequence is expressed as
Sn = (ar^n - 1)/(r - 1)
Where
n represents the number of term in the sequence.
a represents the first term in the sequence.
r represents the common ratio.
From the information given,
S12 = 20475
r = 2
n = 12
Therefore,
20475 = (a × 2^(12) - 1)/2 - 1
20475 = (a × 4095)
20475 = 4095a
a = 20475/4095
a = 5
Answer:
The answer is 12x-15
Step-by-step explanation:
This is a simplification question, so
5(3x-2) using distributive property makes it (15x - 10)
-(3x+5) negating 3x+5 gives -3x-5
so 15x-10-3x-5 = 12x-15
Hope this helps!