F(4)=2(4)^3-5(4)^2-11(4)-4=128-80-44-4=0
Solution is 4
Answer:
x = 1/4 k
Step-by-step explanation:
11kx + 13kx = 6
(11k+13k)x = 6
24kx = 6
x = k/4
I think part A is 6 miles in a hour and part B is i'm guessing 20 min is how long it would take because that's how long we take to WALK a MILE.
Answer: The required slope of the line is 8 and it represents that the earning of Maggie per hour is $8.
Step-by-step explanation: Given that the following table shows the amount Maggie earns for various numbers of hours she babysits :
Number of hours 1 2 3 4
Earnings 8 16 24 32
We are to graph the data and to find the slope of the line.
From the table, we note that the points on the line representing the data are (1, 8), (2, 16), (3, 24) and (4, 32).
These points are plotted on the co-ordinate plane and its graph is shown on the attached figure below.
Now, the slope of a line passing through the points (a, b) and (c, d) is given by
So, the slope of the line representing the data is
Thus, the required slope of the line is 8 and it represents that the earning of Maggie per hour is $8.
Answer:
a. u1≤u2
b P<0.05 rejected H
Step-by-step explanation:
College High School
485 442
534 580
650 479
554 486
550 528
572 524
497 492
592 478
487 425
533 485
526 390
410 535
515
578
448
469
The mean is the average . the sum of number over the number of observation
x1=525
x2=487
s.d1=59.42
s.d2=51.74
n1=16
n2=12
Determine the hypothesis
u1≤u2
find the degree of freedom
25
p-value is the probability of obtaining the value of the test statistics. In the column of t-value in the row df=25
0.025<P<0.05
if the P value is actually less than or the same as the significant level, then the null hypothesis is rejected
P<0.05 rejected H