The heights of the apple trees in an orchard are normally distributed with a mean of 12.5 feet and a standard
deviation of 1.2 feet. What percentage of the apple trees are between 10.1 and 13.7 feet tall?
Answer:
18.141%
Step-by-step explanation:
We start by calculating the z-scores
Mathematically;
z-score = (x-mean)/SD
for 10.1
z = (10.1-12.5)/1.2 = -2
for 13.7
z = (13.7-12.5)/1.2 = 1.2/1.2 = 1
So we need the probability within this range
P(-2 < x < 1)
We can check the probability using the standard normal distribution table
That will be;
P(-2 < x < 1) = 0.18141
Converting this to percentage, we have 18.141%
PLEASE HELP WILL GIVE BRAINLIEST
Answer:
is it [tex]-2t^{2}[/tex] or [tex]2t^{2}[/tex]?
Mr. Howard and Ms. Egan enjoy running on the weekends. They both usually run at a steady pace and try to meet in the middle. They are 14 miles apart. Mr. Howard can run 3 miles in 30 minutes. Ms. Egan can run 4 miles in 30 minutes.
Given :
Distance between them, D = 14 miles .
Mr. Howard can run 3 miles in 30 minutes.
Ms. Egan can run 4 miles in 30 minutes.
To Find :
Time taken by them to meet.
Solution :
Mr Howard speed, [tex]v_H=\dfrac{3}{0.5}=6\ mph[/tex] .
Mr Egan speed, [tex]v_e=\dfrac{4}{0.5}=- 8\ mph[/tex] . [ Since they run in opposite direction ]
Their relative speed :
[tex]v=v_E-v_H\\\\v = 8-(-6) \ mph \\\\v = 14 \ mph[/tex]
Time taken by them to meet :
[tex]T = \dfrac{14}{14}\ hours\\\\T = 1 \ hours[/tex]
Hence, this is the required solution.
Jayden is downloading songs onto his MP3 player. One song is 5 minutes long,another is 2 minutes long,and a third is between the lengths of the other two songs. What is the total length of all three songs?
Answer:
Jayden is downloading songs onto his MP3 player. One song is 5 minutes long,another is 2 minutes long,and a third is between the lengths of the other two songs. What is the total length of all three songs?
Step-by-step explanation:
Jayden is downloading songs onto his MP3 player. One song is 5 minutes long,another is 2 minutes long,and a third is between the lengths of the other two songs. What is the total length of all three songs?
so the answer iis 3.5 minutes long
BRAINLIEST PLS??????????
The total length of all three songs is 10.5 minutes.
What is addition?Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.
Given:
Jayden is downloading songs onto his MP3 player.
One song is 5 minutes long,
another is 2 minutes long,
and a third is between the lengths of the other two songs.
Third song is,
= (2 + 5)/2
= 3.5 minutes.
The total length = 2 + 3.5 + 5 = 10.5 minutes.
Therefore, The total length is 10.5 minutes.
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1 point
Solve for x. *
Answer:
I got A idk if its right tho.
Step-by-step explanation:
10x+4x+90=180
14x+90=180
14x=90
x=6.42
You are calculating potential income from an association's request for proposal. The convention will require 200 rooms for three nights, 3 lunches for 350 people at each lunch, and AV equipment for 10 breakout rooms for three days. Assuming you charge $150 per night per room, $10 per person per lunch, and $300 total per breakout room per day for the A/V equipment, what is your estimated income for the convention?
A)$98,000
B)103,500
C)109,500
D)112,000
Answer:
c
Step-by-step explanation:
step by step my g
which of the following is a solution to the equation 0=x^2+6x+4
Answer:
[tex]x=-3\pm\sqrt{5}[/tex]
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASAlg I
Standard Form: ax² + bx + c = 0Quadratic Formula: [tex]x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]Step-by-step explanation:
Step 1: Define
x² + 6x + 4 = 0
a = 1
b = 6
c = 4
Step 2: Find x
Substitute: [tex]x=\frac{-6\pm\sqrt{6^2-4(1)(4)} }{2(1)}[/tex]Evaluate: [tex]x=\frac{-6\pm\sqrt{36-4(1)(4)} }{2(1)}[/tex]Multiply: [tex]x=\frac{-6\pm\sqrt{36-16} }{2}[/tex]Subtract: [tex]x=\frac{-6\pm\sqrt{20} }{2}[/tex]Simplify: [tex]x=\frac{-6\pm2\sqrt{5} }{2}[/tex]Factor: [tex]x=\frac{2(-3\pm\sqrt{5}) }{2}[/tex]Simplify: [tex]x=-3\pm\sqrt{5}[/tex]evaluate (5.6 x 10⁶) - 340,000 / 2 x 10^3
Answer:
5599830
Step-by-step explanation:
5,600,000 - 340,000 / 2,000
5599830
If you factor 27x^3+1 in form (a-b)(a^2+ab+b^2) what is the value of a?
Answer:
3x
Step-by-step explanation:
i took the test and got it right
PLEASE HELP! I WILL MARK BRAINLIEST!!!
Which of the following was the primary audience that Jack London most likely had in mind for The Call of the Wild?
college professionals
elementary school children
hunters and trappers that frequented the frozen North
a broad audience made up of all kinds of people
Answer: I'd say a broad audience made up of all kinds of people
It had different parts and concepts that could entertain any age group
Answer:
A broad audience made up of all kinds of people
Step-by-step explanation:
Which ratio is equal to 27 : 81?
Answer:
3:9 u can reduce it again to 1:3
Which of the following is an irrational number?
At a soccer tournament 12 teams are wearing red shirts, 6 teams are wearing blue shirts, 444 teams are wearing orange shirts, and 2 teams are wearing white shirts
Answer:
red
Step-by-step explanation:
The complete question is as follows;
At a soccer tournament 12 teams are wearing red shirts, 6 teams are wearing blue shirts, 4 teams are wearing orange shirts, and 2 teams are wearing white shirts. For every 2 teams at the tournament, there is 1 team wearing ____ shirts
Solution;
The total number of teams we have is 12 + 6 + 4 + 2 = 24 teams
Now looking at the number of teams wearing red shirts , we can see 12 of them which is exactly half the total number of teams
So what this means is that for every two teams at the tournament, there is 1 team wearing red shirts
someone this is due at 11:59 i will give brainliest
A student misses 6 questions on an exam. His final score was an 80%\
how many questions were on the test
Solve for y. y - 2 = 4x + y
Answer:
y= -2=4x
Step-by-step explanation:
I need this answered in 3 min plz help.
Answer:
It's so blurry I cant see it
1) a verify : x² + 4x+3 = (x+2) ²)
Answer:
NO
Step-by-step explanation:
X^2+4X+3=(X+2)(X+2)
X^2+4X+3=X^2+2X+2X+4
X^2+4X+3=X^2+4X+4
Answer:
undefined
Step-by-step explanation:
x²+4x+3 = (x+2)²
first of all you open the bracket on the Right hand side..
(x+2)² = (x+2)(x+2)
= x(x+2)+ 2(x+2)
=x²+2x+ 2x+4
= x²+4x+4
therefore,
x²+4x+3 = x²+4x+4
next, we collect all like terms together,
x²-x²+4x-4x = 4-3
0+0 = 1
the answer is undefined
because 0 cannot be equal to 1
y=-3 using intercept and standard form
Answer:?
Step-by-step explanation:
Marvin rides his bike at an average speed of 13 miles per hour. How far can he bike in 8 hours?
Marvin can bike miles in 8 hours.
Answer:
104
Step-by-step explanation:
13x8=104
A square garden has an area of 114 square feet. Which could be the length of one side of the garden?
Answer:
im guessing 12 because 12x12=114, and since the garden is a square, we length/with has to be the same number.
Step-by-step explanation:
what is the intermediate step in form (x+a)^2=b as a result of completing the square of the following equation
6x^2+72x-170=-2
Answer:
6x² + 72x - 170 = -2
<=> 6x² + 72x - 168 = 0
<=> x² + 12x - 28 = 0
<=> x² + 12x + 36 = 64
<=> (x+6)² = 64
Step-by-step explanation:
find 6 rational numbers between 8 and 9
Answer:
Step-by-step explanation:
8,1 8,2
8,3 8,4
8,5 8,6
Ms. Zerngast’s favorite candy is a snickers bar. It costs 7.80$ for 6 large snickers candy bars. She likes to buy them at our local center market. How many candy bars can Ms. Zerngast buy for 18.20$.
What is the area of this figure ?? Please help
Answer: I would say 80 but I don't think that's right so sorry I don't really think I can help you with this question.
Step-by-step explanation:
A bakery used 25% more butter this month than last month. If the bakery used 240 kilograms of butter last month, how much did it use this month?
Round your answer to the nearest whole number.
Answer:
Step-by-step explanation:
240 kilograms *25%= 60 kilograms more
total of 300 kilograms
answer the question below
Divide total cost by total cans:
c = 8.96 / 32
c = 0.28 per can
please help me in math
Consider the equations shown: ax + by = ab & 2ax + 3by = 3b
Which of these is the value of y in terms of a?
Option 1 : y = 3a – 35
Option 2 : y = 2ab – 3b
Option 3 : y = 9a – 35
Option 4: y = 3 – 2a
Answer: [tex]y=3-2a[/tex], Option 4
Step-by-step explanation:
[tex]\left \{ {ax + by = ab} \atop {2ax + 3by = 3b}} \right.[/tex]
multiply 2 at [tex]ax+by=ab[/tex]
[tex]2ax+2by=2ab[/tex]
subtract [tex]2ax + 3by = 3b[/tex] and[tex]2ax+2by=2ab[/tex]
[tex]by=3b-2ab[/tex]
[tex]y=3-2a[/tex]
At the baseball field, a bag of candy is $2.50 and a bag of popcorn is $4.25. John is planning to purchase 3 boxes of candy and x bags of popcorn. Write an equation to find y, the total price John must pay.
Answer:
y=20.25
Step-by-step explanation:
Two friends argue over who brushes their teeth more often.
Who is more likely to brush both morning and evening? Assume all events are independent.
Multiple choice answers in picture below
Answer:
arabella so B
Step-by-step explanation:
plz mark brainlyest
The probability of one who is more likely to brush both time morning and evening is Braxton, he has a 0.61 probability of brushing both times.
What is Probability?Probability helps us to know the chances of an event occurring.
[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]
The probability of Braxton brushing both times = (0.72×0.85) = 0.612
The Probability of Arabella brushing both times = (0.82×0.79) = 0.6478
Hence, the probability of one who is more likely to brush both time morning and evening is Braxton, he has a 0.61 probability of brushing both times.
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