we have given that 
where 
represents the number of elements in C.
where we have 4 and 6 which have two elements.
so 
15b=55
----- ----
5 5
3b=11
The answer is 3b=11
<h2>E
xplanation:</h2><h3>1.</h3>
The little square box in the corner between the vertical line and the horizontal one is a symbol indicating that angle is a right angle. It has a measure of 90°. The angles designated 1 and 2 together add up to that 90°. When angles sum to the value 90°, they are called "complementary" angles.
Since angles 1 and 2 also share a side and a vertex, they are also "adjacent" angles.
The appropriate choices are ...
- complementary angles
- adjacent angles
___
<h3>2.</h3>
The same lines define the sides of angles 1 and 2, and they share a vertex. However, they are not adjacent. They are ...
___
<h3>3.</h3>
The angles marked 157° and x° together add up to make a line, so they are supplementary (their total is 180°). They also share a vertex and a side, so they are adjacent. The appropriate choices are ...
- supplementary angles
- adjacent angles
___
<h3>4.</h3>
When two angles total 180°, they are <em>supplementary</em>, whether they have any common parts or not. Since 98° + 82° = 180°, ...
- The angles are supplementary
You can start by converting from degrees to radians and using the relation
Or just set up the proportion equation,
B. 5 is the input
Step-by-step explanation:
f(x) = 4x + 3 f(5) = 23 Plug in 5 for x.
f(x) = 4(5) + 3
f(x) = 20 + 3
f(x) = 23
B. 5 is the input
