Answer:
Step-by-step explanation:
The population size is everybody running the race. It does not include people watching the race and it is not confined to just the 20 people the researcher talked to.
If it doesn't limit itself to the 20 people, then the 5 and 12 and 3 people are also too limiting.
Jack is planning to attend a public university after he graduates from high school in 2 years. He is devising a plan to save money each month to help with the expenses of attending the university. The cost of attending the public university for one-year is $27,540. His family has promised to contribute $13,950 each year he is in school. What is the minimum amount of money Jack must contribute to his savings per month for the next 2 years to have enough money to pay for his first year of tuition?
a
$537.95
b
$566.25
c
$598.32
d
$512.95
Help pleaseeeeeeeeee
9514 1404 393
Answer:
47 -6√10
Step-by-step explanation:
As you know, the area of a square is the square of the side length. It can be helpful here to make use of the form for the square of a binomial.
(a -b)² = a² - 2ab + b²
(√2 -3√5)² = (√2)² - 2(√2)(3√5) + (3√5)²
= 2 - 6√10 + 3²(5)
= 47 -6√10
__
Check
√2-3√5 ≈ -5.29399 . . . . . . . . note that a negative value for side length makes no sense, so this isn't about geometry, it's about binomials and radicals
(√2-3√5)² ≈ 28.02633
47 -6√10 ≈ 28.02633
A cooking school is teaching students how to make pasta noodles. The line plot displays how much flour each student used. How many total cups of flour did the students use to make the pasta?
Answer:
[tex]Total = 11\frac{1}{8}\ cups[/tex]
Step-by-step explanation:
Given
See attachment for plot
Required
Total number of cups used
The number of dot on each dataset represent the number of student
So, to get the total number of cups, we simply add the product of the number of cups and the number of student for each data item
So, we have:
[tex]Total = \frac{1}{8} * 6 + \frac{1}{4} * 5 + \frac{3}{8} * 2 + \frac{1}{2}*0 + \frac{5}{8} * 4 + \frac{3}{4} * 2 + \frac{7}{8} * 5[/tex]
[tex]Total = \frac{6}{8} + \frac{5}{4} + \frac{6}{8} + 0+ \frac{20}{8} + \frac{6}{4} + \frac{35}{8}[/tex]
Solve
[tex]Total = \frac{6+10+6+0+20+12+35}{8}[/tex]
[tex]Total = \frac{89}{8}[/tex]
[tex]Total = 11\frac{1}{8}\ cups[/tex]
Please a correct answer gets brain thing that I forgot it name please help
Answer:
;FIHI;IHFHGILSOUDHFUHZSIUDGNJKZNSFJGNOSHTJOIJOIGJOSKFNGKNSJKGNONOJGOKJN
Step-by-step explanation:
What do the arrows heads indicate?
Answer:
These pictures that you draw with arrows and arrowheads are representations of abstract mathematical objects. A ray is a subset of a line that has a starting point and extends indefinitely in one direction (not the other). The arrowhead is meant to indicate that it goes on and on.May 9, 2015
Why do vectors have arrowheads at the "endpoint
according to
...https://math.stackexchange.com › questions › why-do-vec...
A sample proportion of 0.78 is found. To determine the margin of error for this statistic, a simulation of 100 trials is run, each with a sample size of 50 and a point estimate of 0.78. The minimum sample proportion from the simulation is 0.62, and the maximum sample proportion from the simulation is 0.80. The margin of error of the population proportion is found using half the range. What is the interval estimate of the true population proportion?
1. (0.74, 0.82)
2. (0.64, 0.92)
3. (0.72, 0.84)
4. (0.69, 0.87)
Answer:
4. - (0.69,0.87)
PLEASE Help I need the area in cm2 THanks Have a nice day!!
Answer:
132 cm^2
Step-by-step explanation:
Area of trapezoid = 1/2 ( (7 + 19) * 8) = 26*4 = 104 cm^2
Area of rectangle = 4 x 7 = 28 cm^2
104 cm^2 + 28 cm^2 = 132 cm^2
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
What is the standard deviation of scores for the tenth
level?
O 215
0 311
O 354
0 430
Answer:354
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
GOT IT RIGHT ON TEST!!!!
I dont know what to ask im just posting this question so the questions I asked are equal to how much friends I have :-:
Wassup. I'm back from the dead. Satan revived me.
CALL ME BY YOUR NAAAAAAAAAAAAAAAMEWhich statement best describes the relationship between the two variables? There is an association because the relative frequencies by column are similar. There is an association because the relative frequencies by row are similar. There is no association because the relative frequencies by column are similar. There is no association because the relative frequencies by row are similar.
Answer:
I think it is B if it is your welcome if not sorry its been a while since I learned about these.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
I NEED HELP SOMEONE PLZZZ HELP ME PLZZZZ
Answer:
3
Step-by-step explanation:
Answer:
h = √18 (4.24)
Step-by-step explanation:
Theorem = a² + b² = c²
√34 - 4² = a²
√34 - 16 = a
√34 - 16 = 18
√18 = 4.2426406871192851464050661726291 (Rounded to nearest hundreth: 4.24; nearest tenth: 4.2; nearest one: 4)
What is P(A ∩ B)?
A) 1/10
B) 1/2
C) 3/10
D) 4/5
Answer:
A)
[tex]P(A ∩ B) = \frac{2}{20} \\ = \frac{1}{10} [/tex]
Which is equivalent to (15x2 + 3x – 6)-(15x2 + 3x + 6)?
Answer:
creo que es hay 15también eso yo pienso
i have like 0 clue what this is. so can someone also explain it please.
Answer:
What they are asking is in which box do each of the following numbers go into.
[tex]\sqrt{2}[/tex] and [tex]\frac{\pi }{2}[/tex] would go in the 'Between 1 and 2' box.
[tex]\sqrt{5}[/tex] goes under the 'Between 2and 3' box.
([tex]\sqrt{3.5}[/tex])^2 is the exact same as 3.5, as the square root and square cancel each other out, so it goes in the 'Between 3 and 4' box.
Hope that this helps!
3) Mary deposits £10000 in an account which pays 5.6% compound
interest per year.
How much will Mary have in her account after 5 years?
Answer:
FV= £13,131.66
Step-by-step explanation:
Giving the following information:
Initial Investment (PV)= £10,000
Interest rate (i)= 5.6%
Number of periods (n)= 5 years
To calculate the future value (FV), we need to use the following formula:
FV= PV*(1 + i)^n
FV= 10,000*(1.056^5)
FV= £13,131.66
Which is the answer?
A.5.7
B.8.9
C.3.5
D.3.2
help me please:(
Answer:
The answer is c
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
hope this helps with the work
Help me with this math problem
Answer:
I believe that the answer is B
Step-by-step explanation:
Need this ASAP please
Answer:
C
Step-by-step explanation:
Because if we multiply by 2 both member we have
(x-12)(x-4)= 0
A product has a result that is equal to iif at least one of its factor is equal to 0, so we can solve this two equations:
x-12 = 0
x = 12
x-4 = 0
x = 4
1.35b = 40.5
what is the value of b ?
Answer:
b=30
Step-by-step explanation:
Which figures will have a volume that is greater than 100 cubic units? Select two options. a rectangular prism with dimensions of 4 by 5 by 4 a rectangular prism with dimensions of 2 by 12 by 6 a rectangular prism with dimensions of 1.5 by 8 by 8 a triangular prism that is 6 long and has a triangular face with a base of 4 and a height of 12 a cube with side length 4.
Answer:
It is B and D
Pls help will mark brainliest
Answer:
uhh, look it up
Step-by-step explanation:
PLEASE HELP NOT WILL HELP ME :,(
I'll make brainliest and give extra points
The following cone has a height of 4 inches and a volume of 12π. 4 in. What is the radius of the cone?
Answer:
3 in.
Step-by-step explanation:
volume = ⅓πr²h
⅓πr²h=12π
r²h=36
r²=9
r = 3 inches
A class has 16 boys and 20 girls. A prefect is to be chosen from the class. If
each student is equally likely to be chosen, calculate the probability that the
selected prefect is:
(a) a boy (b) a girl
Answer:
a) 16/36 b)20/36
Step-by-step explanation:
16 + 20 = 36
36 = how many people are in the class all together
Sorry if it is wrong
A population has a standard deviation of 22. What is the standard error of the
sampling distribution if the sample size is 100?
A. 4.4 D
B. 0.22
C. 0.44
Ο Ο
D. 2.2
Answer:
2.2
Step-by-step explanation:
Find square root of sample size then divid it by your standard deviation
Answer:
2.2
Step-by-step explanation:
i just took the test
trig questions above solve for x and round to the nearest tenth
Answer:
x= 51.3
x=35.1
Step-by-step explanation:
10.)
For this one we have the adjacent side and the hypotonouse
Which means we'll use CAH
cos(x)=25/40
x= 51.31781255
(assuming that we have to round to the nearest tenth again)
x=51.3
12.)
For this one we have the adjacent and hyptonouse
we'll use CAH again
cos(x)=27/33
x= 35.09680123
x=35.1
Robert plays cricket. He hit the ball in such a way that it goes up 180 feet
in 45 seconds. What is the speed of ball in feet per second?
Answer:
4 feet per second
Step-by-step explanation:
Hi there!
[tex]v=D/t[/tex] where v is velocity (speed), D is distance and t is time
Plug in the known values (D=180 feet, t=45 seconds)
[tex]v=180/45\\v=4[/tex]
Therefore, the speed of the ball is 4 feet per second.
I hope this helps!
Answer:
Honestly, I will say 4? I apologize if it is wrong though
Step-by-step explanation:
Because I divided 180 by 45.
If the measure of angle 5 is 57 degrees, what is the measure of angle 2?
Answer:
3
Step-by-step explanation:
Angle 1 is a supplement of angle 2, and m angle 1 is 123 degrees. Angle 2 is a complement of angle 3. Find m angle 3.
What is the measure of angle X. No links plz
Answer:
30
Step-by-step explanation:
Use the Quadratic Formula
Use the Quadratic Formula to find the zeros of the given
expression. Be sure to show your steps!
2x2-7x+3
Plz help no links
Answer:
1/2 and 3
Step-by-step explanation:
The quadratic formula is as given:
( -b±√(b^2-4ac) )/2a
To use it, plug in the a,b and c values.
ax^2+bx+c
In this case a is equal to 2, b is equal to -7, and c is equal to 3
plugging it into our formula gives us:
(-(-7)±√(-7^2-4*2*3) )/2*2
Which is equal to:
7±√(49-24) / 4
= 7±√25 / 4
=7±5 / 4
=2/4, 12/4= 1/2, 3
A tea infuser in the shape of a right rectangular pyramid is 7.9 cm tall and has a base 3 cm long and 1.5 cm wide. To make the best tea, the infuser should be 80% filled with tea. What is the volume of tea needed to fill the infuser to 80% of its capacity?
Answer:
28.44 cm³Step-by-step explanation:
Full volume is:
V = lwhV = 3*1.5*7.9 = 35.55 cm³Volume of tea required:
35.55*80/100 = 28.44 cm³