Answer:
5.2 hours
Step-by-step explanation:
To find the solution, you need to multiply Aretha's time by 1.6, since Neal takes 1.6 as long to run the marathon.
3.25 × 1.6 = 5.2
In other words, Neal takes 5.2 hours to run the marathon. Let me know if I can help you with anything else, 'kay?
Calculate the value of πr2 for r=5.6. Round your answer to two decimal places.
Answer:
98.52
Step-by-step explanation:
PLEASE HELP
I MARK THE BRAINLIST
Answer:
1.6
Step-by-step explanation:
Hi there!
[tex]\large\boxed{D = 1.6}[/tex]
To find the decimal, we must look at the amount of subdivisions between 1 and 2.
Counting, we get 10 divisions, so each increment is by 0.1.
D is located at the sixth line from 1, so:
1 + 6(0.1) = 1 + 0.6 = 1.6
A chipmunk population is experiencing exponential growth with a population growth rate of 265 individuals/year, and a per capita rate of increase of 0.15. How many chipmunks are currently in this population
Answer:
There are 1766 chipmunks in the population
Step-by-step explanation:
Number of individuals increasing per year = 265
Rate of increase = 0.15
Rate of increase = increase in number of individuals in a given population /total population
Substituting the given values, we get -
0.15 = (265/total population)
Total population = 265/0.15 = 1766
The mean age of the employees at a large corporation is 35.2 years, and the standard deviation is 9.5 years. A random sample of 4 employees will be selected. What are the mean and standard deviation of the sampling distribution of the sample mean for samples of size 4
Answer:
35.2 ; 4.75
Step-by-step explanation:
Given that :
Mean age, μ = 35.2 years
Standard deviation, σ = 9.5 years
The mean of the sampling distribution will be equal to the population mean, μ, this is according to the central limit theorem.
The standard deviation of the sampling distribution, is given by : σ/√n
n = sample size = 4
SD of sampling distribution = 9.5/√4 = 9.5 / 2 = 4.75
The parallel lines of an isosceles trapezoid are congruent.
true or false
Answer:
Your answer is false.
Step-by-step explanation:
You will never have an isosceles trapezoid have congruent parallel lines otherwise it'd be a square.
5/8+3/4 over this problem(/) -2/3-5/6.
Answer:
5/8 + 3/4= 11/8
-2/3-5/6 =-3/2
Since the second is dividing the first
11/8 ÷ -3/2
Flipping; Then change the bottom to the top(Do this to the second fraction)
11/8 x -2/3
=-11/12.
a) Complete the table of values for y = x2 + 1
Look at the graph, No Links
Answer:
y = - 0.5
loco loco, loco loco, loco loco ooo
Help plz..And No links!! I repeat No links!! If you don’t know the answer don’t saying anything this is important
Answer:
169.646003294, hope this helps
Step-by-step explanation:
To solve this equation,
A= [tex]2\pi rh+2\pi r^{2}[/tex]
Since the radius is 3 meters. We know what r is. A radius of a circle or sphere is any of the line segments from its center to the perimeter. The height is 6 meters.
[tex]A=2\pi (3)*6+2\pi (3^2)\\ A=2\pi (18)+2\pi 9\\ A=113.097...+2\pi 9\\ A=113.097+56.548...\\ A=169.64600...[/tex]
Sorry, I don't feel like writing all the numbers in and also it would cut out later on.
what is the variable if 13 and p
Answer:
p because variables are shown by letters not numbers
Hope this helped:)
Step-by-step explanation:
Solve the expression below: 3(x-3) + 2x(4x+6)=
A silo has a cylindrical part and a roof that is a hemisphere.
The radius of the cylinder is 3m and its height is 12m.
Find the volume of the silo.
Answer:
339.29
Step-by-step explanation:
Use formula for cylinder: [tex]V=\pi r^2h[/tex].
Note: I rounded to the nearest hundreth.
what is 13.2857143 as a fraction
Answer:
13.2 in fraction form is 66/5.
Step-by-step explanation:
PLEASE HELP!!!!!!!!!!!!!!!
Solve the following inequality. Show all work.
−4 + 2 ≥ 20
Answer:
The answer is -2 ≥ 20
Step-by-step explanation:
You add -4 and 2
Solve for x, worth 10 points
Answer: x=22
Step-by-step explanation:
Since the angles are corresponding angles, use x+14=5x-74. You get 36=36 meaning it is right when you substitute the value for x.
x+14=5x-74
-x on both sides
14=4x-74
+74 on both sides
88=4x
Divide both sides by 4
x=22
help no files and no links pls help
Answer:
X would be equal to 37 degrees
Step-by-step explanation:
Answer:
x=37
Step-by-step explanation:
118+25+x= 180
143 + x = 180
= 37
check answer by 25+118+37=180
I NEED HELP FAST! I NEED THESE MATH SHEETS CHECKED OVER ( will be given brainly )
there is one additional problem and it is r^10s^6/r^-5s^9
Answer:
The answer is r^10s^6/r-5s^9= r^10/r-^5 = r^15
Step-by-step explanation:
the answer is r^15
classifying triangles
what type of triangle is shown?
The answer is c: Scalene
Answer:
Scalene since there are no same angles nor lengths
Step-by-step explanation:
Sam is using the expression m/8n in class. what is the value of the expression when m = 4 and n = 1/2?
Answer:
1
Step-by-step explanation:
m/8n > 4/8(1/2) ( since its 1/2 all u need to do is change the fraction to whole number which is 1/2 = 0.5)
The given will become 4/4 then simplest form is 1
find the value of x pls help
Answer:
x = 16
Step-by-step explanation:
*A triangle's interior angles always add up to 180 degrees*
1. The square on the left-hand side means 90 degrees
2. To find the degrees on the 150 degrees side we need to subtract 180 from 150 as the line it's on equals 180 degrees
180 -151 = 29
3. Now we know 3 out of the two angles, so if we add them up and subtract them from 180 degrees we will have the 3rd angle
29 +90 = 119
180 - 119 = 61
4. Now we can put that in with the equation
4x + 3 = 61
5. Solve
4x - 3 = 61
+ 3 +3
4x = 64
/4 /4
x = 16
12 1/2-(4 1/2) = ? I really need help
Answer:
8
Step-by-step explanation:
So we have 12 1/2 - (-4 1/2)
6-(-2)
6+2
8
[tex] \sf12 \frac{1}{2} - ( - 4 \frac{1}{2} ) = \boxed{ ? }[/tex]
____________________Solution :-Given Information :-Fraction 1 ➢ [tex] \sf12 \frac{1}{2} [/tex]Fraction 2 ➢ [tex] \sf -4 \frac{1}{2} [/tex]Operation ➢ Subtraction To Find :-The difference between two fractionsCalculation :-[tex] \sf: \implies \sf12 \frac{1}{2} - ( - 4 \frac{1}{2} ) = \boxed{ ? }[/tex]
Firstly, converting mixed fractions to improper fractions, We get,
[tex] \sf: \implies \frac{25}{2} - ( - \frac{9}{2} ) = \boxed?[/tex]
Now, solving the parentheses, We get,
[tex] \sf: \implies \frac{25}{2} + \frac{9}{2} = \boxed ?[/tex]
Since, We have like terms, We will directly add up the two fractions, We get,
[tex] \sf: \implies \frac{25 + 9}{2} = \boxed?[/tex]
Calculating further, We get,
[tex] \sf: \implies \frac{34}{2} = \boxed?[/tex]
Bringing the fraction to it's lowest terms, We get,
[tex] \sf: \implies \frac{ \cancel{34} \: \: \tiny{7}}{ \cancel2} = \boxed7[/tex]
[tex] \sf :\implies \sf12 \frac{1}{2} - ( - 4 \frac{1}{2} ) = \red{ \boxed{ \bf7 }}[/tex]
____________________Final Answer :-[tex] \sf \sf12 \frac{1}{2} - ( - 4 \frac{1}{2} ) = \red{ \boxed{\bf7 }}[/tex]____________________3. Jaquan can read 1/16 of a book in ½ an hour. At this rate, how long would it take him to finish half of the book?
Answer:
4 hours. your answer is 4 hours
What is the length (magnitude) of the vector (7, -2)?
A. 5
B. sqrt53
C. -22 sqrt5
D. sqrt2
Answer: B
Step-by-step explanation:
I just got it right on A P E X
have a good day
remember to give me a heart (thank?) lol :>
Scores on a statewide standardized test are normally distributed with a mean of 12.89 and a standard deviation of 1.95. Certificates are given to students whose scores are in the top 2% of those who took the test. This means that they scored better than 98% of the other test takers. Marcus received his score of 13.7 on the exam and is wondering why he didn’t receive a certificate. Show all work to determine whether Marcus’ score was high enough to earn a certificate. Write a letter to Marcus explaining whether or not he will be receiving a certificate. Include a brief summary of your statistical analysis in your letter.
Answer:
Marcus score is 13.7, the mean is 12.89, and the standard deviation is 1.95, so I’ll do ( 13.7 – 12.89)/ 1.95, Since Marcus' z-score is 0.415. The area to the left of the z-score is 65.9% so therefore Marcus did scored better than 65.9% of the students. So Marcus needs to score 98% better of all the other students in order for him to receive an actual certificate.
Step-by-step explanation:
The length of 12cm and 5 cm missing one
Answer:
13cm
Step-by-step explanation:
Let the given lengths be the opposte amd adjacent sides of a right triangle'
The missing side will be the hypotenuse
Using the pythagoras theorem;
hyp^2 = 5² + 12²
hyp² = 25 + 144
hyp² = 169
hyp =√169
hyp = 13cm
Hence the missing one is 13cm
Find the value of 8 x n when n=9.
Answer:
72
Step-by-step explanation:
8×n
8×9
=72
just substitute 9 were n is the multiple
to check
8n=72 (divide by 8 both sides)
n=9
division the following simply your answer
Answer:
1) 12 - 8/3 = ((12*3)-(8))/3 = 28/3
2) 10/ (4/7) = (10/1)*(7/4) = 70/4
3) 12/5 + 4/6 = ((5*4)+(12*6))/(5*6) = 46/15
Please help check if this is correct?
Answer:
50 is correct
Step-by-step explanation:
did my math but I know you need it quick so sorry for brief answer
What is the value of x in the figure?
A. 120°
B. 140°
C. 150°
D. 160°
SOMEONE PLEASE EXPLAIN THIS TO ME. IVE GOTTEN THIS WRONT 3 TIMES AND I DONT KNOW WHAT IM DOING WRONG
Answer:
I believe the answer is 58.1 degrees
Step-by-step explanation:
acrsin 45/53=58.1
45/53 is the sin of P
help!! need this turned in by today!
Bob the Wizard makes magical brooms. He charges 125 gold pieces for each magical broom he makes for
his customers. He also charges a one-time fee of 50 gold pieces for his initial consultation.
The total number G of gold pieces Bob charges is a function of 2, the number of magical brooms he makes
Write the function's formula.
G =
Answer:
G = 50
Step-by-step explanation:
50 is the initial after-cost, right?
answer is : The function formula will be
Since we have given that
Charges per each magical broom he makes for his customers = 125 gold pieces
Charges of one time fees = 50 gold pieces
Let the number of magical brooms he makes be 'x'.
Let the total number of gold pieces be 'G'.
According to question, it becomes
Step-by-step explanation:Since we have given that
Charges per each magical broom he makes for his customers = 125 gold pieces
Charges of one time fees = 50 gold pieces
Let the number of magical brooms he makes be 'x'.
Let the total number of gold pieces be 'G'.
According to question, it becomes
Since we have given that
Charges per each magical broom he makes for his customers = 125 gold pieces
Charges of one time fees = 50 gold pieces
Let the number of magical brooms he makes be 'x'.
Let the total number of gold pieces be 'G'.
According to question, it becomes