The x-intercept of a graph is the point where the graph crosses the x-axis
<h3>(a) Graph</h3>
The function is given as:
See attachment for the graph of the function.
From the attachment, the approximated x-intercepts are -7 and -1
<h3>(b) Type of solution</h3>
From the attached graph, we can see that the curve crosses the x-axis at non-terminating decimals
Hence, the solutions of the equation are irrational.
<h3>(c) The vertex</h3>
This is the minimum or the maximum point of a parabola.
From the attached graph, the minimum point is at (-4,-7)
Hence, the coordinates of the vertex of the parabola is (-4,-7), and it is exact (not approximated)
Read more about parabolas at:
brainly.com/question/4061870
2419.2 divided by 6.3 is equal to 384, so 384 miles per hour
1. the answer is 27/10
2. the answer is 3 1/7
3. the answer is 3 5/6
Please mark me the brainliest!
Answer:
Step-by-step explanation:
Given is an equation in three variables
where the three variables are non negative integers.
Since sum =10, and each integer has minimum value 1, we find that each variable can take values as 1,2,...8 only
If first variable is 1, the other two can be 1,8 or 2,7 or... 8,1 ... 8 ways
If first variable is 2, ... the other two can be 1,7 or 2,6 or..7,1 ... 7 ways
This will go up to first variable =8
Thus we have total number of solutions as
Thus possible solutions are 36
Evaluate them
A.
f(5), x>1 so square it, f(5)=25
A is wrong
B.f(2), x>1 so square it, f(5)=4
B is correct
C. f(1), x=1 so the result is 5, f(1)=5
C is correct
D. f(-2), x<1 so double it, f(-2)=-4
D is wrong
answers are B and C
