Answer:x
=
4
+
√
2
(
24
v
22
t
+
233
)
2
x
=
4
−
√
2
(
24
v
22
t
+
233
)
2
Step-by-step explanation:
Answer:
Sean can dive 275 feet after he takes 13 lessons.
Step-by-step explanation:
Since L means the number of lessons taken, we will have:
D = 20*13 + 15
D = 260 +15
D = 275
#a
H(0)
It refers to y value on graph when x is 0
So here it refers to y intercept
Hence
#b
Observe the graph
y intercept is not 0 so it's not true
#3
Domain is set of x values in graph
#4
Range is set of y values on graph
Answer:
B
Step-by-step explanation:
it is because is the cubic equation and the formula involves quadratic formula
Answer:
Karl works 7 hours a week
Step-by-step explanation:
Step 1: Determine total amount that Sally earns
Total amount Sally earns=rate per hour×number of hours worked(h)
where;
Rate per hour=$7 per hour
Number of hours worked=h
Replacing;
Total amount Sally earns=(7×h)=7 h
Step 2: Determine total amount Karl earns
Total amount Karl earns=rate per hour×number of hours worked
where;
rate per hour=$5
number of hours worked=2 more than Sally=h+2
replacing;
Total amount Karl earns=5(h+2)
Step 3: Equate Sally's total earnings to Karl's total earnings and solve for h
7 h=5(h+2)
7 h=5 h+10
7 h-5 h=10
2 h=10
h=10/2
h=5
Karl works (h+2) hours=(5+2)= 7 hours
Karl works 7 hours a week
