Answer:
5
Step-by-step explanation:
( divide numerator and denominator by 5 ) , then
=
( with missing number ? = 5 )
There are many like
1(10)+10-1=19
18+1=19
30-11=19
15+4=19
Hope this help!!
Answer:
4
Step-by-step explanation:
t = d/r
t = 280/70
t = 4 hours
Answer:

Step-by-step explanation:
The given function is

By the triangle inequality property,

and the alternate triangle inequality property;

We apply this property to get:

Expand parenthesis to get:

Simplify to get:

Group similar terms to get:


When x>5,

That's;

Answer:
30
Step-by-step explanation:
is going to output a number in between
and
.
Luckily you are looking for
in the 1st quadrant which is contained in the given interval above, so the answer just comes down to what the calculator returns from entering
in your calculator.
You may also use the unit circle. sine value refers to the y-coordinate on there.
So you are looking for when the y-coordinate is 1/2 in the fist quadrant which is at 30 degrees.