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velikii [3]
2 years ago
9

1) Find the value for a that makes sin a = cos 25 true A ) 35 B) 65 D ) 155

Mathematics
1 answer:
svet-max [94.6K]2 years ago
6 0

Answer:

B

Step-by-step explanation:

Using the cofunction identity

sin(90 - x)° = cosx°

Here x = 25° , then

cos25° = sin(90 - 25)° = sin65°

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IceJOKER [234]

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yes

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2 years ago
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Answer:

Y(n) = 7n + 23

Step-by-step explanation:

Given:

f(0) = 30

f(n+1) = f(n) + 7

For n=0 : f(1) = f(0) + 7

For n=1 :  f(2) = f(1) + 7

For n=2 : f(3) = f(2) + 7 and so on.

Hence the sequence is an arithmetic progression with common difference 7 and first term 30.

We have to find a general equation representing the terms of the sequence.

General term of an arithmetic progression is:

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7 0
3 years ago
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ANEK [815]

Answer:

Step-by-step explanation:

3 0
3 years ago
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Fill in the table using this function rule.<br> y = 10x + 1
aleksandr82 [10.1K]
Y=10x+1
x=-1→y=10(-1)+1=-10+1→y=-9
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x       y
-1    -9
0      1
1     11
5     51
8 0
3 years ago
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3 years ago
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