Answer:
3972.72 specimens
Step-by-step explanation:
We solve using the z score formula:
z = (x-μ)/σ where
x is the raw score = 73 cm
μ is the population mean = 147 cm
σ is the population standard deviation = 30 cm
N is the number of samples = 4000
For x > 73
z = 73 - 147/30
z = -2.46667
Probability value from Z-Table:
P(x<73) = 0.0068189
P(x>73) = 1 - P(x<73) = 0.99318
The probability of having a height greater than 73cm is: 0.99318
The number of specimens that have a height greater than 73cm is calculated as: 0.99318 × 4000
= 3972.72 specimens
The length of the rope was cut from 30 inches to 24 inches. By what percent was the price of the rope reduced?
Find the value of x (Round to the nearest tenth)
Pls pls help!!!!
Answer:
28.32
Step-by-step explanation:
using the formula [tex]a^{2} +b^{2} =c^{2}[/tex], you get [tex]21^{2} +19^{2} =c^{2}[/tex].
then you get [tex]441+361=802[/tex]
your answer needs to be the square root of 802.
the square root of 802 is 28.319604517
Which rounded to the nearest tenths is 28.32
PLEASE HELP i really need the answer asap
Answer:
its 16
Step-by-step explanation:
8 /x = 10/20
20 * 8 =160
10 * x =10x
10x = 160
x=16
Write 8256 correct to 3 significant figures.
Answer:
8260 line over 6
Step-by-step explanation:
In 2/3 divided by 4/5 the____ is 2/3 .
Answer:
Numerator
Step-by-step explanation:
2/3 / 4/5. 2/3 is the numerator of the compound fraction.
HELP FAST WILL GIVE BRAINEST FOR RIGHT ANSWER!!!
Part A: State the Greatest Common Factor of 12x2y5z and 150x6y5z and 66y9z
Show all work you did to determine the GCF.
Part B: Factor completely 4x2 – 20x +100
Part C: Factor completely. 81x2-64
Part D: State the factoring rule for special cases. (a + b)2 = ??
Part E: State the factoring rule for difference of two squares. a2 – b2 = ??
Answer:
Step-by-step explanation:
A) 12x² y⁵z = 2² * 3 * x² * y⁵ * z
150x⁶y⁵z = 5² * 2 * 3 * x⁶ * y⁵ * z
66y⁹z = 2 * 3 * 11 * y⁹ * z
GCF = 2 * 3 * y⁵ * z = 6y⁵z
B) 4x² - 40x + 100 = (2x)² - 2 * 2x * 10 + 10²
= (2x - 10)²
C) 81x² - 64 = (9x)² - 8² {a² - b² = (a + b)(a - b)}
= (9x + 8)(9x - 8)
D) (a + b)² = a²+ 2ab + b²
E) a² - b² = (a + b)(a - b)
Answer:
Simplifying 4x2y + 12xy2 + 9y3 Reorder the terms: 12xy2 + 4x2y + 9y3 Factor out the Greatest Common Factor (GCF), 'y'. y(12xy + 4x2 + 9y2) Factor a trinomial.
Step-by-step explanation:
Subtracting Perfect Squares · (a+b)(a-b)=a2-b · Example · 4x2-9= · Subtracting Perfect Cubes · a3-b3=(a-b)( · Adding Perfect Cubes · x3+27=(x+3)(x2-3x+9).
why does math have to be so hard
Answer:
Math seems difficult because it takes time and energy. Many people don't experience sufficient time to "get" math lessons, and they fall behind as the teacher moves on. Many move on to study more complex concepts with a shaky foundation. We often end up with a weak structure that is doomed to collapse at some point.
Math is hard because it is a non-intuitive, non-natural activity. Math don't happen by chance only, it only happens with deliberate, focused work. For this you expend a lot of energy and cause a lot of mental strain, you put yourself on an uncomfortable condition for hours, days, sometimes weeks to solve a problem.
But some people love math, like me, because they study math more than others. If you study more and learn more about math, then you’ll start to feel more comfortable because you’ll be ahead of the class when your teacher teaches you something.
The most important thing is to keep trying and never give up.
Hope this helps! :)
solve for "x" : 2x + 3x + 4x =36
Answer:
4
Step-by-step explanation:
2x + 3x + 4x = 36
Evaluate like terms.
9x = 36
Find x.
x = 36 ÷ 9
x = 4
Answer:
b) 4
Step-by-step explanation:
2x+3x+4x=36
=5x+4x=36
=9x=36
x=36/9
x=4
Does anyone know the answer to this please
I’m stuck on it .
Answer:
a=1/4
b=1/8
c=1/81
Source:trust me bro
SOLVE THIS PROOF PLEASE
Answer:
wait what are you trying to find i-
Step-by-step explanation:
#12, what is this answer ?
Answer:
joan chris martin sara
Step-by-step explanation:
Billy ate 5/4 pizzas and John ate 5/3 pizzas. How much more pizza did John eat than Billy?
Answer:
5/12 pizza
Step-by-step explanation:
Find the median for the given sample data. The number of vehicles passing through a bank drive-up line during each 15-minute period was recorded. The results are shown below. 24 26 24 27 27 24 29 26 34 30 30 28 23 30 24 19 14 26 26 26 Find the median number of vehicles going through the line in a fifteen-minute period.
Answer: 26
Step-by-step explanation: You would order the numbers from least to greatest, then find the middle number of the set.
14 19 23 24 24 24 24 26 26 26 26 26 27 27 28 29 30 30 30 34
What does the zero on a graph represent
Answer:
the origin
Step-by-step explanation:
Answer:
The origin
Step-by-step explanation:
(0,0) is often called the origin.
curved surface area of half cylinder
Answer:
curved surface area of half cylinder is
Step-by-step explanation:
πr2h
Answer:
Area of half cylinder is
Step-by-step explanation:
πr2h
Your grandmother is worried about the heat during the family reunion picnic yesterday between 10 am and noon the temperature rose 6 degrees then between noon and 3pm it rose 4 degrees what was the average rate of increase in temperature between 10am and 3pm
Answer:
Average rate of temperature increase is 2 degrees per hour
Step-by-step explanation:
Here, we want to calculate the average rate of increase in temperature
From what we have above, we can calculate this by dividing the total temperature rise by the number of hours
The total temperature rise is 6 + 4 = 10 degrees
This means that the temperature rose by 10 degrees between 10 am and 3 pm
The number of hours between 10 am and 3 pm is 5 hours
So the average rate of temperature increase is 10 degrees/ 5 hours = 2 degree per hour
I alway get this wrong idk how pls help
Answer:
C
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
the total earned is d
you earn $4 after each hour (x), so you multiply
xoxo, your highness...Is the relation a function?
Answer:
No it is not because of the 3 it is repeating and it is not a function
Step-by-step explanation:
Solve (v +3) - 44 = 0, where v is a real number.
Answer: V = 41
Explanation in the photo below
Convert 6 4/5 into improper fractions.
32/6
32/5
33/5
36/5
Answer: 34/5
Step-by-step explanation:
Please help!
3 3/4 = r + 1/8
Answer:
r = 29/8 or 3 5/8
Step-by-step explanation:
so you need to make them have the same denominator so you multiply 3/4 by 2/2 to get that
this equals 6/8
add 3 so 24/8
then you subtract 1/8 from both sides
r = 29/8
simplify so 29/8 = 3 5/8
please please help im gonna fail
. ...........................................
.........
.
Answer:
lol bro I'm failing too. Maybe it's a
Write a compound inequality that represents the following phrase.
all real numbers that are between -4 and 8
A. -4< n<8 B.-4< n< 8
........._................._.. _
C.-4<n< 8 D.-4<n<8
............_
Answer:
A. -4< n<8 B.-4< n< 8
Step-by-step explanation:
Answer:
D.-4<n<8
Step-by-step explanation:
how many natural numbers from 78 to 24?
Which expression is equivalent to 4(7 + 8)?
Answer:
28+32
Step-by-step explanation:
4(7+8)
= (4*7)+(4*8)
= 28+32
Who has
✨ A n x i e t y ✨
Answer:
yupyup
Step-by-step explanation:
been having it for years now
which is it please help ill give kisses
Answer:
I think the answer is C
Step-by-step explanation:
Carlton has a job offer for a position as a telemarketer. The job pays $60 per week, plus a
$15 commission for each sale he makes. How many sales would Carlton have to make in
a week in order to earn $240?
Answer:
He would have to make 12 sales a week in order to make $240
Step-by-step explanation:
So every week the job pays him $60
And $15 more every sell he makes So 15x12=180
So if he makes 12 sells in a week he will make $180 dollars.
Plus the 60 the job pays him every week
So 180+60=$240
Write an equivalent expression for 7 + 5 k minus 2 minus 3 k + n. Which statements are true about the steps for writing the equivalent expression? Check all that apply.
Combine the constant terms by adding 7 and –2.
The equivalent expression is 9 + 3 k.
n, 5 k, and negative 3 k are like variable terms.
Combine the like variable terms by adding the coefficients.
5 k and negative 3 k are like variable terms.
The constants 7 and –2 are like terms.
The equivalent expression is 5 + 2 k + n.
Answer:
Shown Below
Step-by-step explanation:
7+5k-2-3k+n
If you combine like terms, you should get 5+2k+n.
Combine the constant terms by adding 7 and –2.Combine the like variable terms by adding the coefficients.5 k and negative 3 k are like variable terms.The constants 7 and –2 are like terms.The equivalent expression is 5 + 2 k + n.Cynthia says that the expression
2(3x + 4) is equivalent to the expression
6x + 8. Is Cynthia correct?