Answer:
m<DCA = 40
Step-by-step explanation:
m<DAC = 90
m<CDA = 50
m<DCA = 180 - 90 - 50 = 40
Answer:
B = 3
Step-by-step explanation:
4+2b = 10
= 2b = 10-4
2b = 6
b = 6/2
= 3
Answer:
Step-by-step explanation:
Notice that the wave completes 3 oscillations at 
. This means that the period is:
Since the frequency is the reciprocal of the period, we get:
So the frequency is:
Answer:
an = 10 * (2) ^ (n-1)
Step-by-step explanation:
We are multiplying the previous answer by 2
That is the common ratio
an = a1 r^ (n-1)
an = 10 * (2) ^ (n-1)
Answer:
c
Step-by-step explanation:
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