We know that
in a right triangle
cos θ=adjacent side angle <span>θ/hypotenuse
in this problem
</span>adjacent side angle θ=38 in
hypotenuse=40 in
cos θ=38/40
θ=arc cos (38/40)-------> 18.19°-------> 18°
the answer is
18 degrees
Answer:
A, She added before multiplying.
Step-by-step explanation:
First, start off by using GEMDAS.
Grouping
Exponents
Multiply
Divide
Add
Subtract
You work from left to right - so you obviously divide first, which Amanda did successfully. Then, you multiply, which is exactly where Amanda went wrong. She was supposed to multiply before adding the 3 with 4.
Not sure if this made sense,
Answer:
41.0cm = 0.41m
1.19m = 119cm
Step-by-step explanation:
Answer:
Step-by-step explanation:
We want to simplify:
This is the same as:
Now let us convert the mixed numbers to improper fractions.
We multiply by the reciprocal of the second fraction to get:
Cancel out the common factors to obtain:
