Answer:
9 times
Step-by-step explanation:
The least common multiple (henceforth written as LCM) of 3 and 8 is 24. Therefore, these 2 owls hoot 72/24 = 3 times. The LCM of 3 and 12 is 12. These 2 owls hoot 72/12 = 6 times. The LCM of 8 and 12 is 24. These 2 owls hoot 72/24 = 3 times. Altogether, these owls hoot the LCM of 3, 8, AND 12, or 72/24 = 3 times. 3+3+6-3 = 9 times.
If they all hoot together at the start, 9 times during the next 80 hours will just two of the owls hoot together.
What is number theory?Number theory is the study of integers and functions of arithmetic.
One owl hoots every 3 hours.
Second owl hoots every 8 hours.
Third owl hoots every 12 hours.
If they all hoot together at the start, how many times during the next 80 hours will just two of the owls hoot together
Number theory indicates that the multiples of the periods of hooting are;
The multiples of 3 are; 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72,75, 78, 81, 82
The multiples of 8 are; 8, 16, 24, 32, 40, 48, 56, 64, 72, 80
The multiples of 12 are; 12, 24, 36, 48, 60, 72,
The least common multiple of 3 and 8 is 24, these 2 owls hoot 72/24 = 3 times.
The LCM of 3 and 12 is 12, these 2 owls hoot 72/12 = 6 times.
The LCM of 8 and 12 is 24, these 2 owls hoot 72/24 = 3 times.
Altogether, these owls hoot the LCM of 3, 8, AND 12, or 72/24 = 3 times. 3+3+6-3 = 9 times.
Therefore, 9 times during the next 80 hours will just two of the owls hoot together.
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Opal plots point D at (Negative 3 and one-half, one-half). Which graph shows the location of point D?
Answer:
b
Step-by-step explanation:
IM DORA
Answer:
B
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ur welcome ......
Step-by-step explanation:
A medical statistician wants to estimate the average weight loss of people who are on a new diet plan. In a preliminary study, he guesses that the standard deviation of the population of weight losses is about 10 pounds. How large a sample should he take to estimate the mean weight loss to within 2 pounds, with 90% confidence?
Answer:
68
Step-by-step explanation:
To get the sample size of the population, we will use the formula for calculating the standard error of the mean. This is expressed as;
SE = zσ/√n
z is the z score at 90% confidence
σ is the standard deviation
n is the sample size
SE is the mean weight loss
Given
z = 1.645
σ = 10
SE = 2
Required
sample size n
Substitute into the given equation;
SE = zσ/√n
2 = (1.645)(10)/√n
2 = 16.45/√n
√n = 16.45/2
√n = 8.225
n = (8.225)²
n = 67.650625
Hence the total sample should be about 68
Cost of Freon Automobiles built before 1993 use Freon in their air
conditioners. The federal government now prohibits the manufacture of
Freon. Because the supply of Freon is decreasing, the price per pound is
increasing exponentially. Current estimates put the formula for the price per
pound of Freon at p(t) = 17.6(1.25)', where t is the number of years since
2000. Find the price of Freon in 2000 and 2010. How much will Freon cost in
the
year 2025?
9514 1404 393
Answer:
2000: 17.60 per pound2010: 163.91 per pound2025: 4,658.68 per poundStep-by-step explanation:
We assume your formula is intended to be ...
p(t) = 17.6(1.25^t)
__
For t=0, ...
p(0) = 17.6
For t=10, ...
p(10) = 17.6·1.25^10 ≈ 163.91
For t=25, ...
p(25) = 17.6·1.25^25 ≈ 4,658.68
Find the value of 7u-5 given that 13u-6= 7.
Simplify your answer as much as possible.
please help asap if it’s not a real answer i will report but anyways ty if you answer
Answer:
Step-by-step explanation:
13u - 6= 7
13u = 7 + 6
13u= 13
u = 13/13 = 1
Putting value of u in the equation
7u - 5
7(1) - 5
= 7 - 5
= 2
A small container holds 75% as much as a large container. if the small container holds 36 liters, how much does the large container hold?
Completely factored form of t2 - 36
Answer:
( t + 6 ) ( t − 6 )
Step-by-step explanation:
t 2 − 36
since 36 is a square number, you'll have to unsquare it to get
t 2 − [tex]6^{2}[/tex]
Since both terms are perfect squares, factor using the difference of squares formula, a 2 − b 2 = ( a + b )( a − b ) where a = t and b = 6
You should get : ( t + 6 ) ( t − 6 ) !
Hope this helped :)))
Aly's science class was looking at bacteria through a microscope. Aly's teacher said some bacteria can be as small as 0.00365 cm long. What is the length of the bacteria written in scientific notation?
Answer:
The answer is 3.65 x 10^3 power.
Step-by-step explanation:
In scientific notation, you need only the one's place, so 36.5 would not work. I hope this helps, I know this is a day late and you probably figured it out, but just in case you didn't, here is the answer :)
Jaine has saved 7times as much as jared has saved. Jaine has saved $378.how much money has jared saved?
Answer:
54
Step-by-step explanation:
378 divided by 7 is how much Jared saved
helppp please I will give brainliest
write an equation
Answer:
Step-by-step explanation:
c=100g+50
then plug in g to get c values
Solve the equation C=5/9(F-32) Solve for F.
Answer: f=9c/5+32
Step-by-step explanation:
hope it helps!
Answer:
F=9C/5+32
Step-by-step explanation:
If P is the incenter of triangle JKL find each measure
Answer:
Check explanation section (check the attached file for the diagram to the question).
Step-by-step explanation:
Without mincing words let's dive straight into the solution to the question/ problem above.
From the question above, we have that the point p = the point at which the bisecting angle of the triangles meets, that is the term known as incenter.
So, we have that; 7x - 6 = 5x + 4. Hence;
2x = 10; x = 5°.
Thus, the angle 5x + 4 = which is the angle KJP = 5x + 4. Recall from above that x = 5°.
Hence; 5x + 4 = 5(5) + 4 = 25 - 4 = 29°.
Also, the angle 7x - 6 = which is the angle KJP = 7x - 6. Recall from above that x = 5°.
Therefore, 7x - 6 = 7(5) - 6 = 35 - 6 = 29°.
The angle KJP + the angle LJP= the angle KJL.
Therefore, the angle KJL = 29° + 29° = 58°.
Angle KJL = 130 - ( angle KJL) - (angle KJL).
The angle KJL = 130° - ( 58°) - (52° ) = 70°
what is |13| 16 is it = > < ?
Answer:
<
General Formulas and Concepts:
Math
Reading a number lineAlgebra I
|Absolute Value| makes all numbers positiveStep-by-step explanation:
Step 1: Define
|13| = 13
16
Step 2: Compare
16 is greater than 13.
Therefore, |13| < 16.
Answer:
<
Step-by-step explanation:
because the absolute value of |13| is 13 so 13 is less than 16
Michael spent $18 at a local farmers’ market. The apples he bought cost $2 per pound, and the peppers cost $3 per pound. How many pounds of apples and peppers did he buy?
This equation represents the scenario:
2a + 3p = 18
Choose the equations that are equivalent.
Check all that apply.
p = two-thirds a + 6
p = negative two-thirds a + 6
a = negative 1 and one-half p + 9
a = 1 and one-half p + 9
a = StartFraction negative 3 p + 18 Over 2 EndFraction
Answer:
p=-2/3a + 6
a=-1 1/2p + 9
a= -3p+18/2
Answer:
B C and E
Step-by-step explanation:
got it right on edge after clicking A instead of B
4. The polynomial m is a function ofx. The graph of m has two zeros at -7 and 2. Which expression below
could be a possible expression of m?
a. (x + 7)(x - 2)
b. (x-7)(x+2)
c. - (x – 7)(x+2)
dr2 - 7x + 2
what’s the answer?
Answer: A foreshore
Step-by-step explanation:
if every red space i land on is -50 points, and i have -450 points, whats the minimum amount of spaces i could have landed on
Answer:I think 9 spaces
Step-by-step explanation:
Answer:
i think its 9
Step-by-step explanation: im not sure
4/9+3/10= what's the answer please
Answer:
67/90
Step-by-step explanation:
no explanation
Joanne can read around 16 sentences per minute of her current novel. She wants to finish her reading before the movie comes out next week. If she has 19 pages left to read and each page has about 140 sentences, how many hours should Joanne set aside to complete her reading? Show your work. Round the answer to the tenths place.
Answer:
The answer is "3 hours and 28 minutes".
Step-by-step explanation:
Calculating the total sentence:
[tex]= 19 \ pages \times 140 \ sentences \\\\= 2,660 sentences\\\\[/tex]
Calculating the minutes which is needed:
[tex]= 2,660 \div 16 \\\\ = 166.25 \ minutes\\\\[/tex]
Calculating the hours and minutes:
[tex]= 166.25 \div 60 \\\\=3 \ hours \ and \ 28 \ minutes[/tex]
3/4 divided by 1/5 in its best form
Answer:
it's 15\4 ur answer dear.
Just multiply 1\3 by reciprocal of 1\5.
Hope u Got it .
Mark it As Brainliest please.
Does the data in the table represent a function?
Please help guysssss
Answer:
No
Step-by-step explanation:
a function can not repeat
The table given in the problem does not represent a function.
What is a function?A function y = f(x) is a one to one relationship between two sets X and Y where the set X is called the domain and Y the range of function f(x) ans x ∈ X and y ∈ Y.
The ordered pair for data given in the table is as below,
{(2, 5), (3, 6), (4, 6), (5, 9), (8, 11)}
Suppose x denotes the first elements and y the second elements of the ordered pair.
Then, from the ordered pair it is concluded that for x = 3 and x = 4, the value of y is 6.
Which implies that the values of x are not unique for a given value of y.
Thus, it does not represent a function.
Hence, the given table does not represent a function as the values in the domain set are not unique.
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what does "x'' equal if 16=x-12
Answer:
x=28
Step-by-step explanation:
16 + 12 = 28
x=28
this is ez
Answer:
28
Step-by-step explanation:
isha spent $0.75 on 1.5 pounds of bananas. at this rate, how much will 6 pounds of bananas cost?
Answer:
9
Step-by-step explanation:
Answer:
the answer is $3
Step-by-step explanation:
0.75+0.75+0.75+0.75=3
Find the radius of circle
Answer:
40 ft in think
Step-by-step explanation:
Answer: 20 feet
Step-by-step explanation:
radius of a Circe is half of the diameter
40 divided by 2 = 20 feet
Use the law of sines to find side b.
Answer:
83.3
Step-by-step explanation:
Which of the following lists does not include all the factors of the number?
4: 1, 2,4
10: 1, 2, 5, 10
5: 1,5
21: 1, 21
Write an equation of the line that passes through the given point and is (a) parallel and (b) perpendicular to the given line.
Answer:
(a). y = 3x - 11 ; (b). y = [tex]-\frac{1}{3}[/tex] x - 1
Step-by-step explanation:
Parallel lines have the same slopes
Slopes of perpendicular lines are opposite reciprocals.
(3, - 2)
The slope of given line is 3
(a). Equation of ║ line is
y + 2 = 3(x - 3)
y = 3x - 11
(b). Slope of perpendicular line is [tex]-\frac{1}{3}[/tex]
y + 2 = [tex]-\frac{1}{3}[/tex] (x - 3)
y = [tex]-\frac{1}{3}[/tex] x - 1
The required equation of a line parallel to the line will be y = 3x - 7
The required equation of the perpendicular line is y = -1/3 - 7
Using the coordinate points to get the equation of the line (1, -4) and (2, -1)
The standard form of the equation is expressed as y = mx + b
m is the slope
b is the y-intercept
Get the slope:
m = y2-y1/x2-x1
m = -1+4/2-1
m = 3/1
m = 3
Get the y-intercept
-4 = 3(1) + b
b = -4-3
b = -7
The required equation of a line parallel to the line will be y = 3x - 7
For the equation of the line perpendicular, the slope of the line will be -1/3
The required equation of the perpendicular line is y = -1/3 - 7
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What is the equation of a line that has a slope of 2 and passes through point (-6,3)?
Answer:
The answer is
[tex] \huge y = 2x + 15[/tex]
Step-by-step explanation:
To find an equation of a line when given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
From the question we have
[tex]y - 3 = 2(x + 6) \\ y - 3 = 2x + 12 \\ y = 2x + 12 + 3[/tex]
We have the final answer as
[tex]y = 2x + 15[/tex]
Hope this helps you
Is x − 8 a factor of the function f(x) = −2x3 + 17x2 − 64? Explain. (2 points)
Answer:
x-8 is a factor of f(x)
Step-by-step explanation:
The polynomial remainder theorem states that the remainder of the division of a polynomial f(x) by (x-a) is equal to f(a).
We are given the function
[tex]f(x)=-2x^3+17x^2-64[/tex]
And it's required to find if x-8 is a factor of f.
Applying the mentioned theorem, we only have to find f(8):
[tex]f(8)=-2\cdot 8^3+17\cdot 8^2-64[/tex]
Operating:
[tex]f(8)=-2\cdot 512+17\cdot 64-64[/tex]
[tex]f(8)=-1024+1088-64[/tex]
[tex]f(8)=0[/tex]
Thus, x-8 is a factor of f(x)
Write and expression using only a whole-number based and a whole-number exponent to model 9•9•9•9•9
[tex]9 \times 9 \times 9 \times 9 \times 9 \\ = {9}^{5} [/tex]
Please help ASAP Due in a week! Marking Brainliest!
Answer:
what's due in a week?
Step-by-step explanation:
I will help btw.. ;)
Answer:
There is nothing here it is blank????
What do you need help with?
Step-by-step explanation:
Which equation justifies why 9 1/3 = ∛9?
(9 1/3)³ = 9(1/3·3) = 9
(9 1/3)³ = 9(1/3+3) = 9
(9 1/3)³ = 9(1/3-3) = 9
(9 1/3)³ = 9(3-1/3) = 9
Answer:
(91/3)3=9(1/3-3)=9
Step-by-step explanation:
Answer:
hows your day
Step-by-step explanation: