[tex] \frac{4}{15} = \frac{12}{45} [/tex]
w = 4
4 × 3 = 12
15 × 3 = 45
PLEASE PLEASE HELP ME NO DOWNLOADABLE FILES
How many solutions
y=2x^2+9x
Answer:
There's going to be 2 solutions
Step-by-step explanation:
Dara has to solve 35 math problems for homework. She has completed 14 of them.what fraction of the problems does she have left to do?
Answer:
The correct answer is 3/5 :)
Study island on 5a area
Answer:
d'Italia dies does did
Step-by-step explanation:
sun will use this rod hero oath his ryu
Need help with this one....
Answer:
(3, -2) (8,3) first box
(6,26) (2,10) second box
(5,-1) (1,1) third box
Step-by-step explanation:
You plug the left number into the equation as x and then do the math to find what y should be equal to. This number should be equal to the right number in the parenthesis.
1) The Trends in International Mathematics and Science Study (TIMSS) in 2007 examined eighth-grade proficiency in math and science. The mean mathematics scale score for the sample of eighth-grade students in the United States was 508.5 with a standard error of 2.83. Construct a 95% confidence interval for the mean mathematics score for all eighth grade students in the United States.
URGENT GIVING BRAINLY and pts
Answer:
I think it's C.
The result of =ROUND(513.2413,2) is __
Answer:
513.24132
Step-by-step explanation:
None of the numbers are large enough to make the next number higher. Therefore that would just be your answer.
Tickets to a play cost $8.00 each.
Write an expression to find the
total cost of "b" boys &
"g" girls.
Answer:
Step-by-step explanation:
b + g = 8x
22. Tell which line below is the graph of each equation in parts (a)-(d).
Explain.
a. 2x + 3y=9
b. 3x - 4y = 12
c. x-3y=6
d. 3x + 2y=6
PLEASE HELP TYYY!
A machine, when working properly, produces 5% or less defective items. Whenever the machine produces significantly greater than 5% defective items, it needs repair. A random sample of 300 items taken from the production line contained 27 defective items. Test at the 1% significance level if the percentage of defective items produced by this machine is greater than 5%.
Answer:
The pvalue of the test is 0.0007 < 0.01, which means that we reject the null hypothesis and accept the alternate hypothesis that the percentage of defective items produced by this machine is greater than 5%.
Step-by-step explanation:
A machine, when working properly, produces 5% or less defective items.
This means that the null hypothesis is:
[tex]H_0: p \leq 0.05[/tex]
Test if the percentage of defective items produced by this machine is greater than 5%.
This means that the alternate hypothesis is:
[tex]H_a: p > 0.05[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
0.05 is tested at the null hypothesis:
This means that [tex]\mu = 0.05, \sigma = \sqrt{0.05*0.95}[/tex]
A random sample of 300 items taken from the production line contained 27 defective items.
This means that [tex]n = 300, X = \frac{27}{300} = 0.09[/tex]
Value of the test statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.09 - 0.05}{\frac{\sqrt{0.05*0.95}}{\sqrt{300}}}[/tex]
[tex]z = 3.18[/tex]
Pvalue of the test:
Testing if the mean is greater than a value, which means that the pvalue of the test is 1 subtracted by the pvalue of Z = 3.18, which is the probability of a finding a sample proportion of 0.09 or higher.
Looking at the Z-table, Z = 3.18 has a pvalue of 0.9993
1 - 0.9993 = 0.0007
The pvalue of the test is 0.0007 < 0.01, which means that we reject the null hypothesis and accept the alternate hypothesis that the percentage of defective items produced by this machine is greater than 5%.
in a polynomial expression, a term can be
Answer:
more than three terms it has to be
ASAP it’s due tomorrow ASAP
Answer:
D
Step-by-step explanation:
00
A group of 150 middle school students were asked whether they prefer playing video games or watching TV in their spare time. The genders of the students and
their responses are reported in the following table.
Playing video
games
Watching TV
Girls
23
64
Boys
43
20
E
(a) What percentage of the students are girls?
(b) What percentage of the students prefer watching TV?
х
$
2
Answer:
58%56%Step-by-step explanation:
a) Number of girls:
23 + 64 = 87Percentage:
87/150*100% = 58%b) Number of students prefer watching TV:
64 + 20 = 84Percentage:
84/150*100% = 56%Answer:
no of percentage of girls=no of girls/total ×100%
=87/150×100%=58%
percentage of the students prefer watching TV
=total no the students prefer watching TV/total std.×100%
=84/150×100%=56%
Please someone help! I've been struggling with this assignment! SHOW ALL WORK.
- Seats in a theater are curved from the front row to the back. The front row has 10 chairs, the second has 16 and the third has 22, and so on.
a) Write a recursive rule for this series:
b) Write an explicit rule for this series:
c) Using the explicit formula, find the number of chairs in row 5 (show work)
d) The auditorium can hold 17 rows of chairs. Write a sigma notation for this series, and then use either series formula to calculate how many chairs can fit in the auditorium.
Answer:
The series:
10, 16, 22, ...This is an AP with the first term a₁ = 10 and common difference d = 6
a) Recursive formula:
a₁ = 10,aₙ = aₙ₋₁ + 6b) Explicit formula:
aₙ = a₁ + 6(n - 1) ⇒ aₙ = 10 + 6n - 6 ⇒ aₙ = 6n + 4c) n = 5 ⇒ a₅ = ?
a₅ = 6*5 + 4 = 34d) S₁₇ = ?
Sₙ = n(a₁ + aₙ)/2 = n(2a₁ + (n - 1)d)/2S₁₇ = 17(2*10 + 16*6)/2 = 986Step-by-step explanation:
sn=15+(n-1)2
the 20th row n=20 so the seats are
15+(20-1)(2)=53 seats
Explicit formula:
aₙ = a₁ + 6(n - 1) ⇒ aₙ = 10 + 6n - 6 ⇒ aₙ = 6n + 4
Write a formula to illustrate this arithmetic sequence:
Hello, who would you do me the favor of helping me with this question?
He says:
Show, using the property of the number of diagonals of a polygon, that the triangles have no diagonals.
I hope they help me
Step-by-step explanation:
diagonal of a polygon formular =sum of diagonal =5-3-5/2. A triangle do not have diagonal
What is the measure of ∠x?
∠x = ___
hello guys, what is 2+2 equal to?
Hiii dear, here is ur answer
Answer:
2+2=4
What’s the correct answer for this question?
Answer:
the solution is 25/7
I did 9x2=18+7
Select all possible solutions for 2x + 7 ≤ 3x - 5.
Help this is due tomorrow!
Answer:
12,18,24,107, [I cant see the rest]
Step-by-step explanation:
x ≥ 12
Answer:
12
Step-by-step explanation:
Re-write this question to make it a statistical question: How old am I?
Answer:
How many years has it been ever since I was born?
Step-by-step explanation:
Definition of a statistical question :
A statistical question is one that can be answered by collecting data and where there will be variability in that data. This is different from a question that anticipates a deterministic answer. For example, "How many minutes do 6th grade students typically spend on homework each week?" is a statistical question.
Can someone help me out please?
What is the domain of the function y=xVx?
- 0
0
0
O 15x<0
Answer:
Option A will be your answer
Step-by-step explanation:
hope it helps...
have a great day!!
The cube root function , has no domain restrictions. The domain of the cube root function is all real numbers, or ℝ .
What is domain ?The domain of a function is the complete set of possible values of the independent variable.
The domain is the set of all possible x-values which will make the function "work", and will output real y-values.
When finding the domain, remember:
The denominator (bottom) of a fraction cannot be zero.
The number under a square root sign must be positive in this section.
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
Domain: (- ∞ , ∞) , {x | x ∈ [tex]\mathbb{R}[/tex]}
Hence, The domain of the cube root function is all real numbers, or ℝ .
To learn more about the domain here:
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The Goodsmell perfume company has a new line of perfume and is designing a new bottle for it. Because of
the expense of the glass required to make the bottle, the surface area must be less than 150 cm2. The
company also wants the bottle to contain at least 100mL of perfume. The design under consideration is in the
shape of a cylinder.
Determine the maximum volume possible for a cylindrical bottle that has a total surface area of less than 150
cm2 Determine the volume to the nearest 10mL. Report the dimensions of the bottle and the corresponding
surface are and volume.
This cylindrical perfume bottle needs to be boxed in a prism for sale on store shelves. The Goodsmell perfume
company would like a box with the smallest possible surface area which will contain your design for the
perfume bottle. Report the dimensions of the box and the corresponding area and volume.
The Pretty Perfume company, Goodsmell's competition, has also designed a new perfume bottle. The bottle is
to be a spherical shape with a diameter of 7cm. Determine the volume and surface area of this bottle.
The spherical bottle has a conical shaped lid with a diameter of 5cm and a height of 4.5cm. Given this
information, calculate the volume and surface area of the lid of the spherical shaped bottle.
Determine the dimensions of the smallest possible box which could be used to package Pretty Perfume's new bottle with its spherical bottle and conical-shaped
lid. However, this box is not shaped like a rectangular prism. Pretty Perfume would like to have unique packaging and have chosen to have a box shaped like a
pyramid. Calculate the volume and surface area of this pyramid-shaped box.
The Final Product:
Prepare a written report that includes:
1. A clear and concise explanation of the process that you used to solve the problem.
2. The calculations that you made, presented in an organized fashion.
3. A rationale (reason) for your selection of values.
Answer:
its to long for me
Step-by-step explanation:
There were 62
females and 217
males present at the high school pep rally. Find the ratio of males to the total number of people present. Express as a simplified ratio.
Answer:
7 : 9
Step-by-step explanation:
62 + 217 = 279
total: 279
females: 62
males: 217
males : total = 217 : 279
217 and 279 are divisible by 31
217 : 279 = 7 : 9
I WILL GIVE YOU BRAINLIEST!
What is the measure of n?
12
4
n
m
n =
V[?]
Enter
After answering the question provided, we can predict that the result will be as in the triangle by Pythagorean theorem = [tex]\sqrt{12^2 - 4^2}[/tex] => N = [tex]\sqrt{144 - 16}[/tex] => n = [tex]\sqrt{132}[/tex]
What precisely is a triangle?A triangle is a polygon because it includes four or so additional parts. It features a simple rectangular shape. A rectangle having edges A, B, and C is referred to as a triangle. When the sides are actually not collinear, Euclidean geometry yields a single plane and cube. If a triangle contains three parts and three angles, it is a polygon. The intersections of a triangle's three sides are referred to as its corners. The sum of a triangle's sides is 180 degrees.
by Pythagorean theorem
n = [tex]\sqrt{12^2 - 4^2}[/tex]
N = [tex]\sqrt{144 - 16}[/tex]
n = [tex]\sqrt{132}[/tex]
To know more about triangle visit:
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Fatima will take an UBER to the movie
theater. She will pay a one time fee of
$5 plus $2.65 per mile. Which equation
can be used to find y, the total cost of
the trip, if x represents the number of
miles of the trip?
A. y = 5x + 2.65
B. y = 5x - 2.65
C. y = 5 + 2.65x
Need
D. y = 5 - 2.65x
Answer:
A
Step-by-step explanation:
If x is the mile then you pay 5 dollars a mile or 5x. The flat fee is 2.65 so we add it and since it's not per mile we don't add an X.
Find the area of a regular 15-gon with radius 64 mm
Answer:
To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides. Apothem = a segment that joins the polygon's center to the midpoint of any side that is perpendicular to that side.
Step-by-step explanation:
What is the measure of n?
n
20
m
5
N= [?]
Please help I’ll give brainliest
Answer:
n = 10
Step-by-step explanation:
n is the altitude of the right triangle.
Apply the right triangle altitude theorem/geometric mean theorem to find n.
Which is:
h = √(xy)
Where,
h = n =?
x = 5
y = 20
Plug in the value into the equation
n = √(20*5)
n = √100
n = 10
Answer:
Step-by-step explanation:
Brainliest for correct answer asap
Answer:
1st one
Step-by-step explanation:
Step-by-step explanation:
answerss
the Last one or the 1st one but go w it the last
What is 2/5 × 4? (Please help me)
Answer:
Exact Form: 8/5
Decimal Form: 1.6
Mixed Number Form: 1 3/5
Step-by-step explanation: Simplify the expression.
brainliest or a thank you pls :)