Answer:
Cos A = (√51)/ 10
Step-by-step explanation:
sin is opposite/hypothenuse
cos is adjacent/hypothenuse
Pythagorus theorem says that c² = a² + b²
10² = 7² + b²
b² = 100 - 49
b = ±√51
It doesn't make sense for a length to be a minus number therefore, we will use +√51.
Cos A = (√51)/ 10
Tell me if I am wrong.
Can I get brainliest
The answer is currently A so yep thats the answer ok
Answer:
a
=
4/
1
−
|
x
|
h
=
0
Step-by-step explanation:
The sum of a number and 2
x + 2
is twice the number
2x
answer
<span>x + 2 = 2x</span>
