Cos(30)=x/20(squarerootof)3 (lolz, sorry bout that xd)
x= 30
sin(30)=y/20(squarerootof)3
y=17.32
you'll have to change Y into a fraction or square root I think...
but yee
Answer:
b= 5/4 or 1 1/4
Step-by-step explanation:
First I will make 1 3/4 into an improper fraction
1/2 + b = 7/4
Then I will make the fractions have common denominators
2/4 + b = 7/4
I subtract 2/4 from 7/4
b= 5/4
Given:
To get rid of the fraction, we can multiply both sides by the denominator, which is 3. This will cancel the fraction:
We are left with:
Answer:
He is correct
Step-by-step explanation:
multiplication and division are inverse operations so lets divide to see if he is correct
40.7/10=4.07
he is correct