i’m pretty sure the answer is 3
21 divided by 7 equals 3
Answer:
Yes it is a function
Step-by-step explanation:
We have to check the ordered pairs to find out if given relation is a function or not.
In an ordered pair, the first element represents the input and the second element represents the output.
The set of inputs is domain and output is range.
For a relation to be function, there should be no repetition in domain i.e there should be unique pairs of input and output.
In the given relation, the domain is {3,5,-1,-2}.
No element is repeated hence it is a function ..
Let g(x) = 2x and h(x) = x2 + 4. Evaluate (h ∘ g)(−2).
A. −12
the corrects answer is <em>B. −16
</em>
C. 20
D. 16
Answer:
Use the graph to write a linear function that relates y to x. The points lie on a line. Find the slope and y-intercept of the line. Because the line crosses the y-axis at (0, −3), the y-intercept is −3.w
Step-by-step explanation:
There are three standard forms for linear functions y = f(x):
f(x) = mx + b (The "slope-intercept" form),
y - yo = m(x - x0) or, equivalently, f(x) = y0 + m(x - x0) (The "point-slope" or "Taylor" form), and.
Ax + By = C (The "general form") which defines y implicitly as a function of x as long as B 0.
Answer:
0.0274
Step-by-step explanation:
The mean is 
and the standard deviation is 
Calculate
for 
If 
then 
and
Use table for normal distribution probabilities to get that
