Answer:
Step-by-step explanation:
It's an imaginary number, where i = √(-1)
What is the quotient of 33.288 and 7.6?
Answer:
219/50 or 4.38
Step-by-step explanation:
divide
Arbitron Media Research Inc. conducted a study of the iPod listening habits of men and women. One facet of the study involved the mean listening time. It was discovered that the mean listening time for a sample of 10 men was 37 minutes per day. The standard deviation was 13 minutes per day. The mean listening time for a sample of 16 women was also 37 minutes, but the standard deviation of the sample was 14 minutes. At the 0.10 significance level, can we conclude that there is a difference in the variation in the listening times for men and women?
Answer:
We reject H0; that there is significant evidence to support that there is difference in the variation in the listening times for men and women
Step-by-step explanation:
Given that :
n1 = 10 ; s1 = 13 ; n2 = 16 ; s2 = 14 ; α = 0.1
Null : H0 : σ1² = σ2²
Alternative : H1 : σ1² ≠ σ2²
To compute the test statistic ; using the Ftest:
F-test = σ2² / σ1² = 14² / 13²
F-test = 14²/13² = 196 / 169 = 1.1597
Decision region :
Reject Null, H0 ; if
Ftest < Fcritical
F critical at:
At α/2 = 0.10/2 = 0.05
df_numerator = 16 - 1 = 15
df_denominator = 10 - 1 = 9
Using F critical calculator :
Fcritical = 3.006
1.1597 < 3.006
Since, Ftest is lesser than Fcritical, then we reject H0
Robin can clean 72 rooms in 6 days
How many rooms can Robin clean in 9 days?
A. 64
B.108
C. 648
D. 9
Answer:
B
Step-by-step explanation:
6/2*3=9
so 72/2*3= 108
so B
if my answer helps please mark as brainliest.
Answer:
B
Step-by-step explanation:
Number of rooms to be cleaned in 6 days = 72
Number of rooms to be cleaned in 1 day = 72 ÷ 6 = 12
Number of rooms to be cleaned in 9 days = 12 * 9 = 108 days
Make a conditional relative frequency table for the columns of movie type. Determine which statement has the strongest association.
Do you prefer watching a comedy, a drama, or a thriller movie?
Comedy Drama Thriller Row Totals
Males 35 12 75 122
Females 46 65 18 129
Column Totals 81 77 93 251
Males prefer comedy movies.
Females prefer drama movies.
Males prefer thriller movies.
Females prefer thriller movies.
The statement which has the strongest association is Males prefer thriller movies.
To obtain which statement has the strongest association, we calculate the probability of each given statement and select that which has the highest probability value.
• probability of Males prefer comedy movies :
n(males who prefer comedy) / n(males)
= 35 / 122 = 0.287
• probability of Females prefer drama movies :
n(Females who prefer drama) / n(females )
= 65 / 129 = 0.504
• probability of Males prefer thriller movies.
n(males who prefer prefer thriller ) / n(males)
= 75 / 122 = 0.615
• probability of Females prefer thriller movies.
n(females who prefer prefer thriller ) / n(females)
= 18 / 129 = 0.140
Comparing the probabilities obtained, Males prefer thriller has the highest probability, thus the strongest association.
A similar question can be found here : https://brainly.com/question/22520957
Answer:
i got it right this person above me is correct.
Step-by-step explanation:
A jar contains 200 coins.
Zack pulls out a coin, records its value, and then puts the coin back into the jar.
Zack does this same process 8 times and records 1 quarter, 2 dimes, 2 nickels, and 3 pennies.
Based on these results, how many coins in the jar can Zach expect to have a value of $0.10 or more?
Answer:
10% ive done these in 6th
Step-by-step explanation:
If R is the midpoint of PS with PR=6x+16 and RS=-26 then find PS
Answer:
PS = 116
Step-by-step explanation:
Given:
PR = 6x + 16
RS = 12x - 26
Required:
Find PS
Solution:
Since R is the midpoint of PS, therefore,
PR = RS
6x + 16 = 12x - 26
Collect like terms
6x - 12x = -16 - 26
-6x = -42
Divide both sides by -6
x = -42/-6
x = 7
✔️PS = PR + RS (segment addition postulate)
PS = 6x + 16 + 12x - 26
Plug in the value of x
PS = 6(7) + 16 + 12(7) - 26
PS = 42 + 16 + 84 - 26
PS = 116
What does a discriminant value of -8
tell you about the solution of a
quadratic equation?
Answer:
Yayaya
Step-by-step explanation:
Answer:
[tex]\boxed {\boxed {\sf No \ real \ roots/ solutions }}[/tex]
Step-by-step explanation:
The value of the discriminant (b²-4ac) can tell us 3 things:
Positive value: 2 real roots Equal to 0: 1 real root Negative value: No real roots, but imaginary roots can exist.The quadratic equation given has a discriminant of -8. This value is negative, so we know that the quadratic has no real solutions.
Anyone know the answer? :))))))))
An FBI agent orders a block of ballistics gel. The gel weighs 54 pounds per cubic foot. What is the weight of the block of gel?
Answer:
22.5 Pounds
Step-by-step explanation:
This is correct because i did it on Big Ideas and got it correct with 22.5.
Whoever replies first I give brainliest pls ASAP
Answer:
8
Step-by-step explanation:
the answer is 8 because 8 times 5 is 40
Х?
When a side of the triangle is 55°
Answer:
70
Step-by-step explanation:
180 - 55 -55 = 70
Pls help I need a good grade
Answer:
f= -14
Step-by-step explanation:
Answer:
f= -14
Step-by-step explanation:
Pls help me
I will give you brainliest
Pls
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Median of 149 111 171 166 152 129 162 144
Answer:
150.5
Step-by-step explanation:
order the numbers lowest-highest:
111, 129, 144, 149, 152, 162, 166, 171
find the number exactly in the middle of the sequence
Answer:
150.5 is the answer
Step-by-step explanation:
You put them in order of smallest to largest
111,129,144,149,152,162,166, 171
Then you pick the middle one
150.5
What is 2 1/3 divided by 1/2?
Also, I have the answer but is it 7/6 or 4 2/3?
Answer:
4 2/3
Step-by-step explanation:
hope this helps you in any way
I need serious help...math is so confusing
Answer:
B
Step-by-step explanation:
Nate has a bag containing 3 red, 2 blue, 4 yellow, and 3 green marbles. If he randomly chooses one marble from the bag, what is the probability that the marble will be blue?
The probability that the marble will be blue if he shakes the bag and when you puts his hand into the bag, to move it around and probably he'll get the blue marble.
Hopefully, it correct.... :)
5 friends share two bags of Trail Mix equally what fraction of a bag of Trail Mix does each friend get
Answer:
5/2
Step-by-step explanation:
5 divided by 2 is 2.5 and then 2.5 as a fraction is 5/2
Answer:
0.4 or 2/5
Step-by-step explanation:
I divided 2 by 5 because 2 bags were being split by 5 friends and got 2/5 which is also 0.4.
(hope this helps :P)
2. A container of oil holds 585 gallons. How many
containers each holding 4.5 gallons will be needed if
all the oil is to be transferred to the smaller
containers?
Answer:
130
Step-by-step explanation:
585/4.5=130
At the City Zoo, of the zoo is set aside for the monkeys. There are 4 different monkeys, each
with an equal-sized area. What fraction of the zoo is set aside for one monkey area?
Can someone plz answer me...
A.1/4
B.4/15
C.1/13
D.1/36
i think part of this question is missing between “at the city zoo” and “of the zoo.”
but i think the answer could be a.
because if there are 4 different monkeys, and they all got 1/4 of space, it would be equal.
PLEASE ANSWER FAST I HAVE 30MINS!!!!!! Which graph shows the result of dilating this figure by a factor of 4 about the origin? On a coordinate plane, rectangle A B C D has points (negative 1, 1), (3, 1), (3, negative 1), (negative 1, negative 1). On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 4, 4), (12, 4), (12, negative 4), (negative 4, negative 4). On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 2, 2), (6, 2), (6, negative 2), (negative 2, negative 2). On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 0.25, 0.25), (0.75, 0.25), (0.75, negative 0.25). (negative 0.25, negative 0.25). On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 0.5, 0.5), (1.5, 0.5), (1.5, negative 0.5), (negative 0.5, negative 0.5).
Answer:
2
Step-by-step explanation:
abshxhdbxbjsbxbsbxnd
Which of the following is a rational number?
square root of 79, square root of 80, square root of 81, square root of 82
Answer:
square root of 81.
Step-by-step explanation:
Which shows the distributive property?
5x+2= 2+5x
5(x+2) = 5x+10
5(x+2)= 5(2+x
Answer:
5(x+2) = 5x+10
Step-by-step explanation:
PLEASE HELP
Find the length of the missing side.
Answer:
use Pythagoras theorem
the missing side is base
Step-by-step explanation:
pythagoras theorem
h^2 = p^2 + b^2
73^2 = 48^2 + b^2
5329 = 2304 + b^2
5329 - 2304 = b^2
3025 = b^2
√3025 = b
55 = b
If the probability of an event is 0.39, what is the probability of its complement?
Answer:
Step-by-step explanation:
p'=(1-0.39)=0.61
Find the slope given: (1,5) & (3,12)
m =
Answer:
Rise (y) over Run (x)
12-5
------
3-1
7/2=m
Step-by-step explanation:
Answer:
[tex]\frac{7}{2}[/tex]
Step-by-step explanation:
Slope, or the Rise/run formula is typically used on the coordinate plane to figure the equation of a line. Although we are not given the direct image, we can still determine the slope by using the following formula:
[tex]slope=\frac{rise}{run} =\frac{y_{2} -y_{1} }{x_{2} -x_{1} } \\=\frac{12-5}{3-1} \\=\frac{7}{2} \\slope=\frac{7}{2}[/tex]
I would be ahppy to help you again in the future, and hope that this answer gives you some clarification :D
DOES ANYONE KNOW THIS???!?!?
Answer:
15%
Step-by-step explanation:
56-32/32×100
24/32×100=75
100-75=15%
Answer:
15%
Step-by-step explanation:
Help me please with this
What is an equation of the line that passes through the point (-5 7) and is parallel to the line x-5y=15
Answer:
Step-by-step explanation:
Parallel lines have same slope.
y = mx + b
Slope = m & y-intercept = b
x - 5y = 15
-5y = -x + 15
y = [tex]\frac{-1}{-5}x + \frac{15}{-5}\\\\[/tex]
[tex]y = \frac{1}{5}x - 3[/tex]
so, slope = 1/5 ; (-5 , 7)
y -y1 = m(x -x1)
[tex]y - 7 = \frac{1}{5}(x- [-5])\\\\y - 7 =\frac{1}{5}(x + 5)\\\\y - 7 = \frac{1}{5}x+5*\frac{1}{5}\\\\y - 7 =\frac{1}{5}x+1\\\\y =\frac{1}{5}x+1+7\\\\y=\frac{1}{5}x + 8[/tex]
So. . . . what is ( 7 + 21 + 18 + 13 ) ?
Answer:
59
Step-by-step explanation:
Answer:
59 lol. Ty for the free points. Btw hello
Step-by-step explanation: