Answer:
the mean is 4.86 & the mad is 1.91 hope this helped you and pls give me the Brainly crown
Step-by-step explanation:
helpp me plzzzzzzzzz plz
Answer:
A
Step-by-step explanation:
Assume that when adults with smartphones are randomly selected, 64% use them in meetings or classes. If 5 adult smartphone users are randomly selected, find the probability that exactly 3 of them use their smartphones in meetings or classes. The probability is (Round to four decimal places as needed.)
Answer:
[tex]P(3) = 0.3397[/tex]
Step-by-step explanation:
The given details represent binomial distribution. So, we have:
[tex]n = 5[/tex]
[tex]p = 64\% = 0.64[/tex]
Required
Calculate P(3)
This is calculated using:
[tex]P(x) = ^nC_x * p^x * (1- p)^{n-x}[/tex]
This gives:
[tex]P(3) = ^5C_3 * 0.64^3 * (1- 0.64)^{5-3}[/tex]
[tex]P(3) = 10 * 0.64^3 * 0.36^2[/tex]
[tex]P(3) = 0.3397[/tex]
PLEASE HURRY I WILL GIVE BRAINLEST Choose the equation that correctly shows the Commutative Property of Multiplication.
Answer:
You have it correct, it is the 3rd one.
Step-by-step explanation:
The commutative property is the equation, flip-flopped. So, if you had 1+8 = 8+1, that would be right.
Answer:
3rd one.....
Step-by-step explanation:
What is the point-slope form of a line with slope 3/2 that contains the point
(-1, 2)?
Answer:
A. (y - 2) = 3/2 ( x + 1)
Explanation:
The point-slope formula is ( y - y1) = m ( x - x1). Just distribute the given where m is 3/2, x1 = - 1 and y1 = 2.
The equation 8h = 200 can be used to find how many hours h a person needs to work to earn $200 at $8 per hour. How many hours does a person need to work to earn $200?
LAST ONE PLEASE :) thank you thank you
Answer:
163 I would think
Step-by-step explanation:
y’ =2x - 3y + 1,y(1) = 5; y(1.2)
Applying Euler's method:
Let f(x, y) = 2x - 3y + 1, and consider the following recurrence relations:
[tex]\begin{cases}x_0=1\\x_n=x_{n-1}+h&\text{for }n\ge1\end{cases}[/tex]
[tex]\begin{cases}y_0=5\\y_n=y_{n-1}+f(x_n,y_n)h&\text{for }n\ge1\end{cases}[/tex]
For step size h = 0.1, we can approximate y (1.2) with just 2 steps:
[tex]\begin{cases}x_0=1\\y_0=5\end{cases}\implies y_1=5+f(1,5)\times0.1=3.8[/tex]
[tex]\begin{cases}x_1=1+0.1=1.1\\y_1=3.8\end{cases}\implies y_2=3.8+f(1.1,3.8)\times0.1=\boxed{2.98}[/tex]
For step size h = 0.05, we need 4 steps:
[tex]\begin{cases}x_0=1\\y_0=5\end{cases}\implies y_1=5+f(1,5)\times0.05=4.4[/tex]
[tex]\begin{cases}x_1=1+0.05=1.05\\y_1=4.4\end{cases}\implies y_2=4.4+f(1.05,4.4)\times0.05=3.895[/tex]
[tex]\begin{cases}x_2=1.05+0.05=1.1\\y_2=3.895\end{cases}\implies y_3=3.895+f(1.1,3.895)\times0.05=3.47075[/tex]
[tex]\begin{cases}x_3=1.1+0.05=1.15\\y_3=3.47075\end{cases}\implies y_4=3.47075+f(1.15,3.47075)\times0.05\approx\boxed{3.1151375}[/tex]
(Compare these to the value of y (1.2) found using the exact solution to the differential equation, about 3.22832.)
1) In your own words, explain when (-3)n is positive and when it is negative.
PLEASE HELP!!!! The problem is in the photo below
Answer:
105m by 105m
Step-by-step explanation:
multiply 7 x 15 to get 105.
Hope it helps!!! :)))
Solve for z: 135 = 15z
Answer:
z=9
Step-by-step explanation:
Answer:
z = 9
Step-by-step explanation:
To find z, do 135 divided by 15. 135 divided by 15 = 9. Therefore, z = 9.
Double-check: 9 x 15 = 135
Hope this helped! If it did, please give brainliest! It would help me a lot! Thanks! :D
David spent $13 of the $20 that is in his wallet. What percentage is equivalent to the amount David spent?
Answer:
Step-by-step explanation:
= 13/20*100
= 60
David spent 60% of his money which was in his wallet.
Solve the following equation algebraically:
3x2 = 48
a. +6.93
Б. +8
с. +4
d. +0.25
Please select the best answer from the choices provided
А
В
С
D
They have a rectangle ABCD as shown below, where AB = 24cm BC = 10cm and AE = 13cm
A. Calculate the volume of the rectangle ABCD
B. Calculate the circumference of the BCD triangle
C. Calculate the circumference of the BEC triangle
D. Calculate the circumference of the DEC triangle
Answer:
A. Area of ABCD = 240 [tex]cm^{2}[/tex]
B. 60 cm
C. 36 cm
D. 50 cm
Step-by-step explanation:
Given: AB = 24cm BC = 10cm and AE = 13cm.
A. Since a rectangle is a 2 dimensional figure, it has no volume but area.
So that,
the area of the rectangle ABCD = length x width
= 24 x 10
= 240 [tex]cm^{2}[/tex]
B. To calculate the circumference of the BCD triangle, apply the Pythagoras theorem to determine BD.
[tex]BD^{2}[/tex] = [tex]BC^{2}[/tex] + [tex]DC^{2}[/tex]
= [tex]10^{2}[/tex] + [tex]24^{2}[/tex]
= 676
BD = [tex]\sqrt{676}[/tex]
= 26
BD = 26 cm
so that,
the circumference of BCD = 10 + 24 + 26
= 60 cm
C. To calculate the circumference of the BEC triangle,
AC = 26 cm, AE = 13 cm
CE = 26 - 13
= 13 cm
CE = 13 cm
The circumference of the BEC triangle = 13 + 13 + 10
= 36 cm
D. The circumference of the DEC triangle = 13 + 13 + 24
= 50 cm
solve the following proportion 3/((x-2))=5/15
Answer:
x = 11
Step-by-step explanation:
Given
[tex]\frac{3}{x-2}[/tex] = [tex]\frac{5}{15}[/tex] ( cross- multiply )
5(x - 2) = 45 ( divide both sides by 5 )
x - 2 = 9 ( add 2 to both sides )
x = 11
I am here with a handful of geometry questions today. Please answer the question based off the image(s) below.
If you are not sure of the answer please leave a comment, DO NOT ANSWER THE QUESTION UNLESS YOU KNOW THE ANSWER. Please don't take me points! Thanks for understanding.
Anyways, please show all of your work and explain your thinking! Answer both! Thanks!
9514 1404 393
Answer:
x = √88.25 ≈ 9.4x = 15Step-by-step explanation:
1. x is the hypotenuse of a right triangle with legs 4.4 and 8.3. The Pythagorean theorem can be used.
x² = 4.4² +8.3² = 19.36 +68.89 = 88.25
x = √88.25 ≈ 9.394
x = 9.4 . . . . rounded to tenths
__
2. The product of segment lengths to the near and far circle intercept is the same for both secants.
7(7+11) = 6(6+x)
7(18)/6 = 6 +x . . . . . divide by 6
21 -6 = x = 15 . . . . . subtract 6
Garth has a collection of postcards from
around the world, and he has organized
them in albums. Each album holds
480 postcards. His collection already
fills two albums and one-fourth of
another album. How many postcards
does Garth have?
Answer:
1080
Step-by-step explanation:
480 + 480 + 1/4(480) = 1080
Answer:
1080 postcards
Step-by-step explanation:
WIth 2 full albums you take 480 and multiply it by 2 to get 960 and 1/4 of 480 is 120 because we divide 480 by 4 to get that and if we add 120 to 960 we get 1080.
Explain the different ways you can name an angle. What
are the different names for this angle?
Answer:
You have an right angle which is like an L and is 90 degrees. A acute angle and it just like if you was to close a L just a little bit you would get an acute angle which is 30 degrees. Last you have the the obtuse angle it´s like is you pulled the top of L and pulled it back a little bit you would get that. I mean those are the basic angles.
Step-by-step explanation:
Help plz I don’t understand
Answer:
well the highest number you could get in a dice is 6 and the lowest is a 1
6=100%
5=85%
4=65%
3=45%
2=25%
1=5%
so the % chance of you getting a 4 or 5 is around 70%
A town records the amount of snowfall each year in January. The median and mean January snowfall for the past 60 years is shown. Which could be the graph of this snowfall data?
Answer:
the top left
Step-by-step explanation:
i did the math
What’s (3b+4)+(-2b-6)=?
Answer:
[tex]b-2[/tex]
Step-by-step explanation:
[tex](3b+4) + (-2b-6)[/tex]
We will need to add like terms. 3b and -2b are like terms and 4 and -6 are like terms.
Let's add 3b and -2b.
[tex]b+4-6[/tex]
We can now add the like terms 4 and -6.
[tex]b-2[/tex]
Randy has 386 hockey cards. he has 165 more baseball cards does he have in all
Answer:
just add 386+165 which equals 551
Step-by-step explanation:
LeBron James buys a basketball for $20 and a 3-pack of socks for $5.50. He has a coupon for 20% off of his total purchases. Lebron has $15. Will he have enough money? If he has enough money, how much will he have left over? If he does not have enough money, how much more will he need? Explain your reasoning.
answer:
does not have enough money
what is the common denomination for 3/10 and 9/8
Answer:
80
Step-by-step explanation:
because if you want to find a common denimeter we have mulitly the deometer to find the answer
sorry if it is wrong
How to solve 32.8 x 21.2
Answer:
Decimal: 695.36
Fraction: 695 and 9/25
Step-by-step explanation:
whats 1 and 2/3 + 1 and 5/6
Answer:
3 1/2
Step-by-step explanation:
( 1 + 1 ) ( 2/3 + 5/6 )
2 + 3/2
2 + 1 1/2
= 3 1/2
Hope this helps dude
Find the volume of the cube whose side length is 6cm
Answer:
volume for cube = length cubed I.e. 6x6×6 = 216
LMNP is rotated 90 degrees around the origin. What are the coordinates of L'?
Answer:
D) L’ (1,0)
Step-by-step explanation:
D) L’ (1,0)
Answer:
d
Step-by-step explanation:
A - P - 3 - X
A Bar of steel is 340 cm long Issa cuts two 55cm lengths of the bar He then cuts the rest into as many 40cm lengths as possible Work out how many 40cm lengths of bar Issa cut
Answer:
7.125
Step-by-step explanation:
Which expression is equivalent to tan(x – pi)?
Answer:
it's b
Step-by-step explanation:
correct on edge!
The equivalent expression is tanx.
We have given that,
tan(x – pi)
We have to determine the expression equivalent to the given expression
What is the tan ratio?tan(x)=sinx/cosx
[tex]=\frac{\sin \left(x\right)}{\cos \left(x\right)}[/tex]
[tex]=\tan \left(x\right)[/tex]
Therefore the equivalent expression is tanx.
To learn more about the equivalent expression visit:
https://brainly.com/question/24734894
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Find the surface area of the solid figure.
10 ft
10 ft
6 ft
15 ft
16 ft
ft
ft
Perimeter of base =
Height =
Base area =
The surface area is
ft2
square feet.
Answer:
Step-by-step explanation:
Perimeter of the triangular base = 10 + 10 + 16
= 36 ft
Height of the prism = 15 ft
Base area = Area of the triangle
= [tex]\frac{1}{2}(\text{Base})(\text{Height}})[/tex]
= [tex]\frac{1}{2}(16)(6)[/tex]
= 48 square ft
Surface area of the triangular prism = 2(base area) + (perimeter × height)
= 2(48) + 36(15)
= 96 + 540
= 636 square ft