Answer:
Step-by-step explanation:
mean=(88+72+85+76)/4=321/4=80.25
x |x-mean|
88 7.75 (88-80.25)
72 8.25 (80.25-72)
85 4.75 (85-80.25)
76 4.25 (80.25-76)
--------
25.00
______
mean absolute deviation=25/4=6.25
179.873 rounded to the nearest tenth
Answer:
Hi, There!
179.9
Rounded to the nearest 0.1 or
the Tenths Place.
Step-by-step explanation:
Add and simplify the answer 5/8+1/8
Answer:
So, 1/8 + 5/8 = 3/4
Step-by-step explanation:
1 /8 + 5/ 8 is 3/ 4.
Answer:
¾
Step-by-step explanation:
5/8 + 1/8
5 + 1/8
6/8
3/4
0.75
Whitewater Rentals has 39 canoes and 25 solo kayaks. The canoes rent for $45 for a six-hour trip. The solo kayaks rent for $49 for the same trip. One day 8 canoes and 4 kayaks were not rented. How much money was collected for rent-als that day?
Please help
Put this equation into slope-
intercept form.
4x + 7y = 14
[?]
y = - x + [ ]
Answer:
y=-4/7x+2
Step-by-step explanation:
7y=14-4x
y=2-4/7x
Let X be a random variable with the following probability distribution.
x -3 6 9
f(x) 1/6 1/2 1/3
(a) Find μg(x), where g(X)=(2X+1)2.
(b) Find the standard deviation of g(X)
It looks like you're saying
[tex]f_X(x) = \begin{cases}\dfrac16&\text{if }x=-3 \\\\ \dfrac12&\text{if }x=6\\\\\dfrac13&\text{if }x=9\\\\0&\text{otherwise}\end{cases}[/tex]
(a) Given g(X) = (2X + 1)², the mean of g(X) is
[tex]E[g(X)] = \displaystyle \sum_{x\in\{-3,6,9\}} g(x) f_X(x) \\\\ = g(-3)f_X(-3) + g(6)f_X(6)+g(9)f_X(9) = \frac{25}6 + \frac{169}2 + \frac{361}3 = \boxed{209}[/tex]
(b) First compute the second moment of g(X) :
[tex]E[g(X)^2] = \displaystyle \sum_{x\in\{-3,6,9\}} g(x)^2 f_X(x) \\\\ = g(-3)^2f_X(-3) + g(6)^2f_X(6)+g(9)^2f_X(9) = \frac{625}{6} + \frac{28561}{2} + \frac{130321}{3} = 57825[/tex]
Then the variance of g(X) is
[tex]\mathrm{Var}[g(X)] = E[g(X)^2] - E[g(X)]^2 = 57825 - 209^2 = 14144[/tex]
The standard deviation is the square root of the variance:
[tex]\sqrt{\mathrm{Var}[g(X)]} = \sqrt{14144} \approx \boxed{118.93}[/tex]
What is the distance from the origin to point A graphed on the complex plane below
Answer:
B) [tex]\sqrt{13}[/tex]
Step-by-step explanation:
1. [tex]d = \sqrt{(-3-0)^2+(-2-0)^2}[/tex]
2. [tex]d=\sqrt{(-3)^2+(-2)^2}[/tex]
3. [tex]d=\sqrt{9+4}[/tex]
4. [tex]d=\sqrt{13}[/tex]
[tex]\sqrt{13} = 3.60555..[/tex]
1 pts
Write the equation of a line through (2, -3), perpendicular to y= xy=
O y=-3x-3
Oy=3x-3
O y=-3x+3
O y=3x+3
Answer:
y=-3x+3
Step-by-step explanation:
What is the range of the function graphed below?
Answer:the answer is d
Step-by-step explanation:the graph is continuous in the positive and includes two then starts right after zero and goes to -4
Find the exact value for each expression:
csc^(-1) ( − √ 2 )
cos ^(-1)(sin (pi /6))
csc^(-1) ( − √ 2 ) = -√ 2s
cos ^(-1)(sin (pi /6)) = cos (1/2)
Mrs. Smith's class is working on a variety of science experiments. Each
student must complete one experiment with each of the other students in
the class. There are 12 students in the class. How many different groups
will be made by the end of the experiments ? Each pair of students can
only be together once.
Answer:
66
Step-by-step explanation:
If there are n students, then the number of pairs is [tex]\frac{n(n-1)}{2}[/tex].
With 12 students, [tex]\frac{12(12-1)}{2} = \frac{132}{2}=66[/tex] pairs can be formed.
The reason the formula works is this: Each of the 12 students can be paired with 11 other students (no student is paired with him/her self). But counting 12 x 11 = 132 counts each pair twice. Example: student A can be paired with student B,..., student B can be paired with student A. The pair was counted two times.
See the attached image that shows pairings of 5 students. There are
5(5 - 1)/2 = 5(4)/2 = 10 pairs.
what is equivalent set
Step-by-step explanation:
An equivalent set is a set that has equal numbers or items.
What is the easiest way to find
which power of 10 to use when
writing a number in expanded
form with exponents?
Step-by-step explanation:
Well,you can count the zeros that will give you the exponent.
For example:
100 has two zeros so the exponent form will be
[tex] {10}^{2} [/tex]
For 10,000,it has 4 zeros.The exponent form is
[tex] {10}^{4} [/tex]
Needing some help for my online class thanks
Answer:
[tex]y=1/2x+2[/tex]
Step-by-step explanation:
Know that: [tex]y=mx+b[/tex]
Starting for (0,0) count how many times you go up to the marked line (which is 2)
[tex]y=1/2x+2[/tex]
The [+] 2 is where you would start off at on the graph, with 1/2 being the slope go up one and over two.
How is the product of 2 and 5 shown on a number line
Answer:
I agree with ELLIEDONEN I also think -10.
;))
[?]r=[ ]
30) 896
Divide
Answer:
29,86
Step-by-step explanation:
attached.......
Solve: 0 = 2x^2 + 16x
Answer:
2x^2 +16x=0
=>2 x(x+8)=0
=>2x=0 or x+8=0
=>x= 0 or x=-8
Step-by-step explanation:
HELP PLEASE 25 POINTS
Answer:
Step-by-step explanation:
75g = 7.5dkg
more than
less than
Answer:
75g= 7.5dkg
445cm is greater than 0.0445dkm
10mm is smaller than 301cm
Step-by-step explanation:
A fabric store prices cotton fabric using a proportional relationship between the length
of fabric (in yards) and the cost in dollars.
If 0.2 yards of fabric costs $1.50, what is the constant of proportionality?
PLEASE ANSWER QUICKLY
Answer:
7.5 dollars per yard
Step-by-step explanation:
you have 0.2 yards and constant of proportionality is when its constant so you make 0.2 into 1. you multiply it 5 times. so you also multiply 1.50 5 times too. which gets you to 7.5 or $7.50.
15. The total consumption of fruit juice in a
particular country in 2006 was about
2.28 x 109 gallons. The population of that
country that year was 3 x 108. What was the
average number of gallons consumed per
person in the country in 2006?
Answer:
total amount of fruit juice consumed is 2.28 x 10^9
total population = 3 x 10^8
per person is
total consumption / total population
therefore;
2.28 x 10^9/3 x 10^8
= 7.6 gallons per person
hope it's helpful
The average number of gallons consumed per person in the country was 7.60 gallons per person.
What is the arithmetic operator?Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,
Given that,
Total consumption of fruit juice 2.28 x 10⁹ gallons
The population of that year = 3 x 10⁸
The average number of gallons consumed per person ⇒
2.28 x 10⁹ / 3 x 10⁸
⇒ 22.8 x 10⁸ / 3 x 10⁸
⇒ (22.8/3) × 10⁸/10⁸
⇒ 7.6
Hence "The average number of gallons consumed per person in the country was 7.60 gallons per person".
To learn more about the arithmetic operators,
brainly.com/question/25834626
#SPJ5
A rectangle has an area of
22 + 9x + 14
Find the expressions that represent the dimensions of the rectangle.
A (x - 2) and (x - 7)
B (x + 3) and (x + 6)
C (x + 1) and (x + 14)
D (x + 2) and (x + 7)
Answer:
D I believe
Step-by-step explanation:
Hope this helps you
A forest contains 20 elks, of which 5 are captured, tagged, and then released. A certain time later 4 of the 20 elks are captured. What is the probability that 2 of these 4 have been tagged?
Answer:
Step-by-step explanation:
P{2 of 4 tagged}=(52)(152)(204)
=0.2167
11/12-2/9 help plasssss
Answer:
hope this helps and have a great dayyyyyy
CAN you please help me with this?
Subtract and simplify answer.
[tex](s^2+5st-9t^2)-(2s^2-2st+2t^2)=\\\\=s^2+5st-9t^2-2s^2+2st-2t^2=\\\\=s^2-2s^2-9t^2-2t^2+5st+2st=\boxed{-s^2-11t^2+7st}[/tex]
Answer:
-s^2+7st-11t^2
Step-by-step explanation:
s^2 +5st - 9t^2 - ( 2s^2 -2st +2t^2)
Distribute the minus sign
s^2 +5st - 9t^2 - 2s^2 +2st -2t^2
Combine like terms
-s^2+7st-11t^2
The fraction models below represent two fractions of the same whole. How much of the Fraction 3 over 8 is in the Fraction 1 over 4 ? Two rectangles of the same size are drawn side by side touching each other. The first rectangle is divided into 8 portions of equal size. Three of these are shaded. The shaded portion alone is labeled as 3 over 8. The second rectangle is divided into 4 portions of equal size. One portion is shaded. The shaded portion alone is labeled 1 over 4.
9514 1404 393
Answer:
2/3
Step-by-step explanation:
You can see from the diagram that the shaded 1/4 of the second rectangle has the same dimensions as 2 of the 3 shaded parts of the first rectangle.
2/3 of 3/8 is in 1/4
What pair of numbers have a gcf of 7? Choose all that are correct
7 and 14
21 and 3
7 and 1
28 and 7
Answer:
7 and 14
28 and 7
Step-by-step explanation:
7 & 14's GCF is 7 since it's the largest factor for both of them.
21 & 3's GCF is 3 since it's the largest factor for both of them.
7 & 1's GCF is 1 since it's the largest factor for both of them.
28 & 7's GCF is 7 since it's the largest factor for both of them.
Answer:
7 and 14
28 and 7
Step-by-step explanation:
7/7 = 1
14/7 = 2
28/7 = 4
21 and 3, gcf = 3
7 and 1, gcf = 1
Sam bought 6 pounds of soil and 8 pounds of bricks. How many more pounds of bricks did he buy than soil
x^7+5x+9 what is f(-1) for the polynomial
Answer: [tex]x=-3[/tex]
Step-by-step explanation:
-7+5 times -1+9
−7+5×−1+9
-7-5+9
−7−5+9
-12+9
−12+9
−3
Find the value of x
50
x
Determine the height in meters of a triangle with an area of 72 square meters and a base of 28 meters.
Step-by-step explanation:
The area A of a triangle is given by
[tex]A = \frac{1}{2}bh[/tex]
where b is the length of the base and h is its height. Solving for h, we get
[tex]h = \dfrac{2A}{b} = \dfrac{2(72\:\text{m}^2)}{28\:\text{m}}[/tex]
[tex]\:\:\:\:= 5.14\:\text{m}[/tex]
