Answer:
4.75
Step-by-step explanation: given x=5 inches Z-score =1 let 'X' be the variable in normal distribution z=+1 when x=5 inches.
The mean length of the pavers produced at Patty's Pavers is 4.75 inches. Thus, the correct option is C.
What is Z-score?A Z-score helps us to understand how far is the data from the mean. It is a measure of how many times the data is above or below the mean. It is given by the formula,
[tex]Z = \dfrac{X- \mu}{\sigma}[/tex]
Where Z is the Z-score,
X is the data point,
μ is the mean and σ is the standard variable.
The Z-score of +1 is,
(x-μ)/σ = 1
(5-μ)/σ = 1
5 - μ = σ
The Z-score of +2 is,
(5.25-μ)/σ = 2
(5.25 - μ)/σ = 2
5.25 - μ = 2σ
Substitute the value of the 'σ', therefore, standard deviation from the above,
5.25 - μ = 2(5 - μ)
5.25 - μ = 10 - 2μ
5.25 - 10 = -2μ + μ
μ = 4.75
Hence, the mean length of the pavers produced at Patty's Pavers is 4.75 inches. Thus, the correct option is C.
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Jason loves to play the piano but doesn't like practicing the exercises his piano teacher assigns. Jason knows the exercises will help him play better though, so he tries to motivate himself using his favorite treat — chocolate chip cookies. Jason gives himself 5 cookies for every hour he practices.
There is a proportional relationship between the amount of time (in hours) that Jason practices the piano, x, and how many cookies he gives himself, y.
Graph this relationship. Select two points to draw a line.
What is the slope of the line?
Answer:
i hated this math in middle school-
Step-by-step explanation:
How can you figure out the diameter of a circle when you just know the area of the circle?
(Please answer in the simplest way) Thanks!
Answer:
yes
Step-by-step explanation:
If you have the area you can divide it by pi to get r squared. You square root this to get r and then just times your answer by 2. (r is the radius)
Dave buys 18 bunches of bananas for $9 for the after school program. Determine how much Patrick will pay for 8 bunches of bananas. Use at least 2 ways to show your answer.
1 ribbon. The piece shown below is only 2/3 of the whole. Complete the drawing to show the whole ribbon.
Gina bought 2.5 pounds of peaches that cost $1.38 per pound at the grocery store. Amy went to the local farmer’s market and purchased 3.5 pounds of peaches at $0.98 per pound. Who spent more money, and how much more?
Answer:
Gina spent more money, she spent 2 more cents than Amy.
Step-by-step explanation:
Gina: 1.38x2=$2.76 1.38/2=69 cents
2.76+69= $3.45
Amy: 0.98x3=$2.94 0.98/2=49 cents
2.94+49= $3.43
Solve one seventh plus nine fourteenths equals blank
Options:
ten fourteenths
eleven fourteenths
ten sevenths
eleven sevenths
Answer: Eleven Fourteenths.
Step-by-step explanation:
To write 1 /7 as a fraction with a common denominator, multiply by 2 /2 .
1 /7 ⋅ 2 /2 + 9 /14
Write each expression with a common denominator of 14 , by multiplying each by an appropriate factor of 1 .
2 /14 + 9 /14
Combine the numerators over the common denominator.
2 + 9/14
Add 2 and 9 .
11 /14
I NEED HELP REAL BAD I NEED TO ANSWER THESE RN
for question 3 should be 4096
Tell whether x and y are in a proportional relationship. If so, find the unit rate. Let y be the temperature x hours after midnight. The temperature is 60∘F at midnight and decreases 2∘F every 1/2 hour
Answer:
x and y are not in a proportional relationship
Step-by-step explanation:
The temperature is 60 F at midnight, and decreases 2 F every 1/2 hour, x represents hours, y represents temperature.
Plot (0, 60) , (0.5, 58) , and (1, 56)
Draw a line through the prints.
The graph is a line that does not pass through he origin.
SO, x and y are not in a proportional relationship.
(P.S. hope this helped a bit! :D )
Simplify 6(x + y) + (x - y).
6x
7x
7x + 6y
7x + 5y
Answer:
7x + 5y
Step-by-step explanation:
I answered the 6(x+y) + (x-y).
Please help.
Find the lateral area and total surface area of the prism.
look at the png , pls help!
A
B
C
D
E
F
G
H
I
Answer:♀️
Step-by-step explanation:
Given the two points (3, -1) and (5,3), explain how to write the equation of the line in slope intercept form.
*Calculate Slope first
*Calculate y-intercept second
*Write your answer in the form y=mx+b (HINT: you will need to find m and b)
Help quickly!!! I will give brainylist or whatever
Can you add an image please?
i will give brainlest to the first person to answer this question:
While at the grocery store, Mrs. Martin noticed that there were two different sized bottles of hot sauce, one was 16.9 ounces and the other 32.55 ounces. What is the difference in weight of the two bottles of hot sauce?
Answer:
15.65 ounces
Step-by-step explanation:
You have to subtract 16.9 from 32.55. This gives you 15.65 ounces.
Answer:
15.65 ounces
Step-by-step explanation:
I hope it's right :)
hiiii help pls TvT .,.
Answer:
its the first one, because the second state that -⅗ is less than -2 which is incorrect and the other two states that either -⅗ or -2 is greater than 0
Jade is painting on top of a table. She needs to buy enough paint to cover the top. a) Is she finding the circumference or the area of the table? b) How many square inches are there on top of this table? (round to the nearest whole number) Please leave an explanation of how you got your answer! Brainliest for the best! (Photo below) Thank You! Peace XOXO
Answer:
a) Area
b) 3,848 in. cubed
Step-by-step explanation:
Since we need to find the area of a circle, we have to insert the value of the radius (diameter ÷ 2) into the equation:
[tex]A = \pi r^{2}\\A = \pi (70/2)^{2} \\A = 35^{2} \pi \\A = 3,848.451\\A = 3,848[/tex]
On Monday Marco practiced the piano for 7\10 hour. On Tuesday he practiced for 1 5\6 hours. He is supposed to practice 1 1\4 hours each day. What info tells if you have to use adding or subtracting fractions. PLEASE ANSWER FIRST-PERSON WILL GET A BRAINLIST ASAP!!!! PLUS 20 POINTES
Answer:
The info that tells that you have to add is how many hours he practiced in total on the first two days. The info that tells you to subtract is how many more hours did he practice on Tuesday.
Step-by-step explanation:
Answer:
Add
Step-by-step explanation:
I'm pretty sure :)
Ms. Gartland bought x number of shirts for the new members of her chorus. The cost for x number of shirts, including $3.99 shipping, was $77.49. Each shirt cost $12.25. There was no sales tax on this purchase. Which equation could be used to find x?
Answer:
The answer is 6 shirts
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
PLEASE HELP MULTIPLE CHOICE
Answer:
D) 1/5
Step-by-step explanation:
[tex] g(n) = 5^{-n+1} [/tex]
[tex] g(2) = 5^{-2+1} [/tex]
[tex] g(2) = 5^{-1} [/tex]
[tex] g(2) = \dfrac{1}{5} [/tex]
Answer: D) 1/5
7 1/4x + x - 2 11/12x + 1 2/3x=5 3/5
find x
The value of x in the given expression is 4/5.
What is an expression?An expression is a mathematical statement containing variable, numbers and which are related by at least one mathematical operation.
Given is an expression, [tex]7\frac{1}{4} x+ x+2\frac{11}{12} x + 1\frac{3}{2} x = 5\frac{3}{5}[/tex]
Solving for x, we get,
[tex]7\frac{1}{4} x+ x+2\frac{11}{12} x + 1\frac{3}{2} x = 5\frac{3}{5}\\\\\\\\\frac{29}{4} x+x+ \frac{35}{12} +\frac{5}{3} x = \frac{28}{3} \\\\\\ \frac{87x+12x-35x+20x}{12} = \frac{28}{3} \\\\\\\frac{84}{12} x = \frac{28}{3} \\\\\\\x = \frac{4}{5}[/tex]
Hence, the value of x is 4/5
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Please solve and explain, thanks :)
Tiyah has 3 coins in her pocket. She pulls
them from her pocket and they all fall on
the floor. What is the probability that all
three coins landed tails up?
Number of events:
Expression:
Answer:
Answer:
12.5%
Step-by-step explanation:
1 coin landing tails up is 50%
2 coins is 50% of 50% so 25%
3 coins is 50% of 50% of 50% so 12.5%
Please help, I need the answer soonnn!!!
Answer:
line B I hope this help!! good luckkk
Answer:line b
Step-by-step explanation:
In general, the slope intercept form assumes the formula: y = mx + b.
M is the slope (lesson on slope)
Mnemonic : 'm' means 'move'
B is the y-intercept (lesson on the y-intercept)
Mnemonic: 'b' means where the line begins.
B is where it intercepts so 1 intercepts the y axis and the only line that intercepts the y axis at 1 is line b
Show work please help (update)
Answer:
I believe the correct answer is A.
Step-by-step explanation:
Sorry if I'm wrong :\
Can you solve this?Graph this line using slope and y-intercept.
Y=-8
Does the graph represent a function? Explain why or why not.
can someone help me with these
Answer:
5) 3x - 10 = x + 4
answer: 7
6) 6x + 4 = x - 11
answer: -3
Step-by-step explanation:
3x - 10 = x + 4
x = 7
6x + 4 = x - 11
x = -3
What is the solution for -10 -19
x -1
PLZ HELP
Find the surface area of this net.
_______ square centimeters
Answer:
228
Step-by-step explanation:
First, let's find the area of A and C
5 ✕ 12 = 60
60 ✕ 2 = 120
Then B
8 ✕ 12 = 96
Then the triangles
3 ✕ 5 ÷ 2 = 12 / 2
But now think,because there are 2 triangles, so we have to times it by 2 later so we can just leave it like this.
120 + 96 + 12 = 228
72 – 32 + 4 HELPPPP PLS
Answer:
44 is your answer
Step-by-step explanation:
What is g(-5)
A. -60
B. -8
C. 12
D. 42
Answer:
G should be 60
Step-by-step explanation:
Sorry if wrong