Answer:
10 liters of 40% solution
10 liters of 10% solution
Question 2. In 2015, a Pew Research poll determined that 56% of teenagers go online several times a day.
You question a sample of 150 area high school students about their online habits. Describe the sampling distribution for the sample proportion, for samples of size 150, of high school students who go online several times a day. You should include a picture that approximates the sampling distribution, and label at least five tick marks in that drawing. Round to the nearest tenth of a percent.
b. You find that, in your sample, 94 of the high school students go online several times a day. Assuming the percentage obtain from Pew, is your result unusual, as defined in class? Justify your answer with a z-score.
Answer:
84 students go online several times a day
Step-by-step explanation:
Please lmk if it is true or false
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
Yes, the above statement is True.
Answer:true
Step-by-step explanation:
You spin each spinner once. You get $50 if you spin a 2 and a vowel. You get $25 if you spin a 2 and a consonant. You get $5 if you spin a 1 and a vowel. Everything else earns $0. What is the expected value of this game?
$8.75
$12.50
$80
$10.25
The expected value of the game is $8.75.
----------------------
The expected value is the sum of each outcome multiplied by it's probability.A probability is the number of desired outcomes divided by the number of total outcomes.The probability of spinning a 2 and a vowel is: [tex]\frac{1}{4} \times \frac{2}{8} = \frac{2}{32}[/tex].Thus, [tex]\frac{2}{32}[/tex] probability of getting $50.The probability of spinning 2 and a consonant is: [tex]\frac{1}{4} \times \frac{6}{8} = \frac{6}{32}[/tex]Thus, [tex]\frac{6}{32}[/tex] probability of getting $25.The probability of spinning 1 and a vowel is: [tex]\frac{3}{4} \times \frac{2}{8} = \frac{6}{32}[/tex].Thus, [tex]\frac{6}{32}[/tex] probability of getting $5.
32 - (6 + 6 + 2) = 18, thus, [tex]\frac{18}{32}[/tex] probability of earning $0.
The expected value is:
[tex]E = \frac{2}{32}(50) + \frac{6}{32}(25) + \frac{6}{32}(5) + \frac{18}{32}(0)[/tex]
[tex]E = \frac{100 + 150 + 30}{32}[/tex]
[tex]E = \frac{280}{32}[/tex]
[tex]E = 8.75[/tex]
The expected value of this game is of $8.75.
A similar problem is given at https://brainly.com/question/24961584
find the value of a cube + b cube when a+b = 5 and ab = 3
As we know :
[tex] \boxed{ \boxed{ {(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab(a + b) }}[/tex]now let's plug the value of given terms :
(5)³ = a³ + b³ + (3×3)(5)125 = a³ + b³ + 45a³ + b³ = 125 - 45 a³ + b³ = 80Answer:
babawi lang sana
Step-by-step explanation:
naul pi
plsssssssssssssss helpppppppppppppppppppppppppppppppppp
Answer:
96cm^2
Step-by-step explanation:
A=L×w
A=8×12
A= 96
What is the value of each digit in 28.6597
Answer: 200000
800000
6000
500
90
7
Step-by-step explanation:
What is an inequality to compare the temperatures of Mercury and Mars.
Answer:
Mercury > Mars
Step-by-step explanation:
Mercury orbits closer to the sun than Mars, so it has a higher surface temperature.
the room has a rug right in the middle of a room. The rug is 3m by 4 m and it is 2 m away from all the surrounding walls. Calculate the area of the room.
Technically it should say the area of the floor of the room but whatever
Also all things done assuming "room" means "floor" and that the rug isn't suspended in midair in the middle of the 3-D room
Answer:
[tex]56~m^2[/tex]
Step-by-step explanation:
If the room is 2 meters away from the rug top and bottom, the room is an extra 4 meters bigger than the rug in width. Likewise for sideways.
WLOG let the rug have a length of 3 and a width of 4(doesn't matter which number goes where). Then, the room has dimensions of [tex](3+4)[/tex] by [tex](4+4)[/tex], which equals 7 by 8 meters.
Therefore, the area is [tex]7*8=\boxed{56~m^2}[/tex]
How do you break apart 32.14
Answer:
answer is below
Step-by-step explanation:
so 32.14 is breakable. first break it up by the tens place you have 3 tens.
next the ones place you have 2 ones
then the tenths place you have 1 tenth
then the hundredth place you have 4 hundreths
so the 3 tens is equal to 30
the 2 ones is equal to 2
the 1 tenth is equal to 0.1
the 4 hundredth is equal to 0.04
this is easier to understand and is a good way to think about more complext numbers
A farmer is enclosing a square area for his pigs as shown below. Use the formula A = s to the second power to find the area of the pig pen.
The area of the given figure that is mentioned is 64.
A square has congruent angles on each side. The square's area is thus equal to its square divided by its side length.
Let a represent the square's side length. The area of the square will be calculated as:
Area of the square = a² square units
The side provided is 8 ft
The area will be
= a²
= 8²
=64
More about the area of the square here,
https://brainly.com/question/1658516
#SPJ1
The Students on each team who drew the greatest number will be the captain of that team. Place the players of the Tigers team in order from Least to Greatest.
Who was the captain of the Tiger Team?
Determine the value of the information in scientific notation.
The moon is approximately 3.63 × 108 meters from Earth.
What is 3.63 × 108 in standard notation?
Answer:
3.63× 108, this is not a scientific notation.
It should be like this:
3.63×10^8
=3.63×1.00000000/ 3.63×1.E8
=3.63
Answer:363,000,000
Step-by-step explanation:
en un triangulo rectangulo abc rectos en b a) hallar el angulo a si c=2a b) hallar el angulo en c se a=4b+10
answer
The side
b
is
4√2
unit.
Explanation:
in right triangle
C=900,a=2,c=6c
is
the side opposite to the right angle, so it is hypotenuse,
a
and
b
are the adjacent sides of the right angle .
We know in right triangle
,a2+b2=
c2∴22+b2=62
or
b2=36−4=32∴
b=√32
or
b=4√2
unit. The side
b is 4√2
unit [Ans]
NEED HELP FOR REAL 69 points!!!!!!!!!!!!!! ASAP
The physicist from the last problem lets the particle fall another 100 times, and finds that the average travel time is now 16 sec. Remember that when running the simulation many times it took 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. What does she conclude and why?
70 percent of 38.20 is what
Answer:
26.74
Step-by-step explanation:
38.20 x 0.70
= 26.74
DONT ANSWER THIS QUESTION OR ELSE
Answer:
or else what?..... ......
Which expression is equivalent to-5(3x-6/7)?
Answer:
The answer is -15x+30/7
Step-by-step explanation:
First: -5×3 is -15x
Then: You change the negative sign to a positive sign.
Last: You put 30/7
i will give brainliest please help
Answer:
1. 18
2. 15
3. Symmetric Property
Step-by-step explanation:
1. 8 + 10 = 18
2. Following symmetric prop. of eq. would mean that since 8 + 10 = 15 + 3 and 8 + 10 = 18, 15 + 3 = 18 as well
3. Symmetric Property of Equality states that if a = b, then b = a
Select the only true statement from the following.
Opposite numbers have different signs and are different distances from zero.
Opposite numbers have the same sign and are the same distance from zero.
Opposite numbers have different signs but are the same distance from zero.
Opposite numbers have the same sign but are different distances from zero.
Answer:
the third one
Step-by-step explanation:
If a ray QT bisects ZRQS , what would be the measure of one of the resulting angles
Measure=?
Answer:
PQS is a straight line, so:
(3x - 5) + (x + 1) = 180
4x - 4 = 180
4x = 184
x = 46 degrees
Step-by-step explanation:
Compute and simplify.
17/1/12/29
Answer:
0.049
Step-by-step explanation:
17÷1=17
17÷12=1.42
1.42÷29=0.049
NO LINKS OR ASSESSMENT!!
Graph the image of the figure using the transformation given. Don't forget to prime marks on your new image.
Answer:
See belowStep-by-step explanation:
Use points:
U(-1, -2), V(2, 0), W(3, -3)Apply the rule:
(x, y) → (x - 4, y + 4)New points are:
U'(-5, 2), V'(-2, 4), W'(-1, 1)(1/2 + 1/3) - (1/2 - 1/3) =
Answer:
.66
Step-by-step explanation:
1/2 + 1/3 - 1/2 - 1/3 = .66
#11 help please !!!!!!!
Answer:
Step-by-step explanation:
300/100 = 3 = 1%
if 3 = 1% then 3/2 or 1.5 = 0.5%
5 x 3 = 15 = 5%
15 + 1.5 = 16.5 = 5.5%
f(x)= x^2. what is g(x)?
A. g(x) = 1/4x^2
B. g(x) =1/4x^2
C. g(x) =4x^2
D. g(x) = 1/2x^2
Answer: g(x)=x/3^2
Step-by-step explanation:
We are given that:
f(x)=x²
We have to find g(x)
Since, we are given that g(3)=1
Hence, we will proceed by the options.
1. g(x)=
at x=3 g(x)=1/9
Hence, this option is incorrect.
2. g(x)=3x²
at x=3, g(x)=27
Hence, this option is incorrect.
3. g(x)= x²/3
at x=3, g(x)=3
Hence, this option is incorrect.
4. g(x)=
at x=3, g(x)=1
Hence, this option is correct
The function f is defined by the following rule.
f(x) = 3x-1
Complete the function table.
Answer:
hope it helps
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A DVD that originally cost $30 is on sale for 10 percent off. Complete the steps to solve the problem
Step 1: Find the amount of the discount.
($30.00)(0.10) =
Step 2: Subtract the discount from the original amount to find the sale price,
Answer:
3$
Step-by-step explanation:
the discount is 27 so that leaves 3 dollars if
30-27=3 ^^
The scale of the drawing was 5 inches = 4 yards. What is the drawing's scale factor? Simplify your answer and write it as a fraction
Answer:
138889/144
Step-by-step explanation:
Aubrey is studying for her math test. She knows she will need to round decimals to the tenths place on her test, but she forgets how to do it. Using the number 125.671 as an example, remind Aubrey the steps to rounding decimals to the nearest tenth.
Aubrey the steps to rounding decimals to the nearest tenth.
Answer:
125.7'
Step-by-step explanation:
What is the equation of a line parallel to y=-4x-7 that passes through 2,29