Answer:
1
Step-by-step explanation:
Answer: 140m
Step-by-step explanation:
GHD989 guys please you this code for guathmath thank you .
I will do that soon okay I will
Please help me! It’s for geometry
The answer to this is 2 67.5
The SAT is the most widely used college admission exam. (Most community colleges do not require students to take this exam.) The mean SAT math score varies by state and by year, so the value of µ depends on the state and the year. But let’s assume that the shape and spread of the distribution of individual SAT math scores in each state is the same each year. More specifically, assume that individual SAT math scores consistently have a normal distribution with a standard deviation of 100. An educational researcher wants to estimate the mean SAT math score (μ) for his state this year. The researcher chooses a random sample of 656 exams in his state. The sample mean for the test is 480.
Find the 95% confidence interval to estimate the mean SAT math score in this state for this year.
(Note: The critical
z
-value to use,
z
c
, is: 1.960.)
( , )
Using the z-distribution, it is found that the 95% confidence interval to estimate the mean SAT math score in this state for this year is (472, 488).
We have the standard deviation for the population, which is why the z-distribution is used to solve this question.
The sample mean is [tex]\overline{x} = 480[/tex].The population standard deviation is [tex]\sigma = 100[/tex].The sample size is [tex]n = 656[/tex].The interval is given by:
[tex]\overline{x} \pm z\frac{\sigma}{\sqrt{n}}[/tex]
We have to find the critical value, which is z with a p-value of [tex]\frac{1 + \alpha}{2}[/tex], in which [tex]\alpha[/tex] is the confidence level.
In this problem, [tex]\alpha = 0.95[/tex], thus, z with a p-value of [tex]\frac{1 + 0.95}{2} = 0.975[/tex], which means that it is z = 1.96.
Then:
[tex]\overline{x} - z\frac{\sigma}{\sqrt{n}} = 480 - 1.96\frac{100}{\sqrt{656}} = 472[/tex]
[tex]\overline{x} + z\frac{\sigma}{\sqrt{n}} = 480 + 1.96\frac{100}{\sqrt{656}} = 488[/tex]
The 95% confidence interval to estimate the mean SAT math score in this state for this year is (472, 488).
A similar problem is given at https://brainly.com/question/22596713
The table shows the shipping fee options for two online marketplaces.
Online Market Shipping Fees
Deals Flat fee of $12
Sell Ur Stuff 11% of selling price
If you sell a smart phone online for $115, how much will you pay if you use the online market with the lesser fee?
Since 11% of $115 is $12.65, it is convenient to pay the flat fee of $12.
If you sell a smart phone online for $115, to determine how much you will pay if you use the online market with the lesser fee, the following calculation must be performed:
115 x 0.11 = X 12.65 = X
Thus, since 11% of $115 is $12.65, it is convenient to pay the flat fee of $12.
Learn more in https://brainly.com/question/25206811
Which graph represents the polynomial function f(x)=x3+4x2−1
Answer:
B OK HOI THE FIRST TIME I AM SO SORRY TO
Please help with this math problem! :)
Answer:
look at the photo..................
Answer:
x = 4.8 , y = 4
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{KJ}{NP}[/tex] = [tex]\frac{KL}{NM}[/tex] , substitute values
[tex]\frac{x}{3}[/tex] = [tex]\frac{8}{5}[/tex] ( cross- multiply )
5x = 24 ( divide both sides by 5 )
x = 4.8
and
[tex]\frac{JL}{PM}[/tex] = [tex]\frac{KL}{NM}[/tex] , that is
[tex]\frac{6.4}{y}[/tex] = [tex]\frac{8}{5}[/tex] ( cross- multiply )
8y = 32 ( divide both sides by 8 )
y = 4
helpppppppp plzzzzzzzzzzzzzzzzz (ANSWER ONLY IF YOU KNOW)
Answer:
1/7 ( a+1 )
Step-by-step explanation:
1/7a + 1/7
1/7 ( a+1 )
expand the brackets (x+5)(3x-2).
Answer: 3x^2 +13x - 10
Step-by-step explanation:
(x+5)(3x-2) = x(3x-2) + 5(3x-2)
x(3x-2) + 5(3x-2) = 3x^2 - 2x + 15x - 10
3x^2 - 2x + 15x - 10 = 3x^2 + 13x - 10
Answer:
3x²+13x-10
Step-by-step explanation:
(x+5)(3x-2)x(3x-2)+5(3x-2)3x²-2x+15x-103x²+13x-10What is the area of the rectangle?
Answer:
60
Step-by-step explanation:
multiply length times width l x w
length is 10
width is 6
10 x 6 is 60
Which graph represents the following relationship between X and y. Y=3x
Answer:
B
Step-by-step explanation:
Because each Y value is found by multiplying X value by 3
136 is 0.8% of what number? Use pencil and paper. Would you expect the answer to be a lot less than 136, slightly less than 136, slightly greater than 136, or a lot greater than 136? Explain.
Each cube in the prism is one cubic unit.
What is the volume of this rectangular prism
Answer:
I don't have answer but To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units
Answer:
The volume of this rectangular prism is 90.
Step-by-step explanation:
V = L * W * H
V = 6 * 3 * 5
Solve the equation for the y-value and choose whether it is a direct variation or inverse variation
xy = 7
Answer: Choice B
y = 7/x
inverse variation
=========================================================
Explanation:
We divide both sides by x to isolate y. That's how we go from xy = 7 to y = 7/x
This is an inverse variation because it's in the form y = k/x. The constant is k = 7.
20 POINTS PLEASE HELP ASAP!
Answer: increasing . . . positive . . . 2
Step-by-step explanation:
As best as I can tell . . .:
increasing . . . positive . . . 2.
The equation describing this line is y = 2x + 2
It has a positive (increasing) slope of 2 (with a y-intercept of +2).
porfavor ayuda ayuda
Answer:
b is 3/5 then 9/5 and lastly 15/25
c is 2/3 then 6/12 then 12/18
¿What are Fractions?
Fractions is that fraction whose fractional number is the expression of a quantity divided by another quantity; that is, it represents an unrealized quotient of numbers.
[tex] \bold{a) \dfrac{2}{4} = \dfrac{4}{8} = \dfrac{6}{12} = \dfrac{8}{16} = \dfrac{10}{20} }[/tex]
[tex]\bold{b) = \dfrac{3}{5} = \dfrac{6}{10} = \dfrac{9}{15} = \dfrac{12}{20} = \dfrac{15}{25} }[/tex]
[tex] \bold{c) \dfrac{2}{3} = \dfrac{4}{6} = \dfrac{6}{12} = \dfrac{10}{15} = \dfrac{12}{18} }[/tex]
Sixty tickets at $50 each cost
Answer:
$3000
Step-by-step explanation:
1 ticket = $50
Therefore, 6 ticket = 6x50
=$3000
1)the fish vendor sells 5/7 kilos of bangus for 75.50. if you will buy 2 1/7 kilos of bangus,how much will cost?
Answer: 好吧，您看到当您将其乘以 73 然后除以 时，您将获得免费的旁遮普语和免费的，乔·佩珀将在凌晨 3 点拜访您
Step-by-step explanation: 详见附件
A college student takes out a $7 500 loan from a bank. Assuming the student has not started paying back the money, how much does the student owe . . .
1.1 . . . after 1 year, if the bank charges 3.8% interest each year?
A plane travels a distance of 6,000 km in a time of 6.2 hours.
What is its average speed rounded to the nearest whole number?
Answer:
distance =6,000km
time =6.8 hrs
speed =distance /time =6,000/6.8=60000/68=882 km/h
plz make brainiest
2. What is the value of the pass after 15 rides?
# of Rides Bus Pass Value Rule
0 $100.00
1 $98.25
2 $96.50
3 $96.75
15 ??? $73.75 ??? Is my answer 73.75 right? If not does anyone know the correct answer
!plz help!
Answer:
im really confused. but its 2,75$ per pass?/ride? sorry i cant help much
Step-by-step explanation:
If Sean reads 1 1/2 pages in 3 1/3 minutes, how many pages does he read in 1 minute?
A customer buys
3
shirts that cost
$
10
each. The store is having a sale for
15
%
off, and the sales tax is
6
%
. The store applies discounts before applying the sales tax to a customer’s total.
What is the customer’s total after the discount and sales tax are applied, in dollars and cents?
Answer:
4.77
Step-by-step explanation:
3 x 10 = 30
30 % 15 = 4.5
4.5 % 6 = 0.27
0.27 + 4.5 = 4.77
solve for x 2/10=3/x-9
Answer:
24
Step-by-step explanation:
Answer:24
explanation
QUICK HURRY I NEED THE ANSWER TOO 10(-11) HURRY!!!!!
Answer:
-110
Step-by-step explanation:
Answer:
-110
Step-by-step explanation:
What is the missing measure
Answer:
119
Step-by-step explanation:
Answer:
look at the photo...............
Consider the following incomplete deposit ticket:A deposit ticket. The amounts deposited were 782 dollars and 11 cents and 564 dollars and 64 cents. The subtotal was 1346 dollars and 75 cents. The total after cash received is 888 dollars and 18 cents.How much cash did Liz receive?
The amount of cash Liz received is; 458 dollars and 57 cents.
The amounts deposited were as follows;
782 dollars and 11 cents 564 dollars and 64 centsThe subtotal is therefore; 1346 dollars and 75 cents.
Since, the total after cash received is; 888 dollars and 18 cents.
The amount of cash received by Liz is;
1346 dollars and 75 cents - 888 dollars and 18 cents.
=458 dollars and 57 cents.Read more on deposit ticket:
https://brainly.com/question/3044615
Answer:
A) 1145.39 on Edge
Step-by-step explanation:
Just took test :)
Factor the Trinomial 6x^2 -23x +20
(And please show the work/steps.)
Step-by-step explanation:
6x²-23x+20
=>6x²-8x-15x+20
=>2x(3x-4)-5(3x-4)
=>(3x-4)(2x-5)
hope this helps you.
Step-by-step explanation:
the answer is in the image above
Write the expression c · d · c · c · d · b · c · d · d · b · d · d · d · d using exponents. Write the variables in alphabetical order.
Answer:
b^2 * c^4 * d^6
Step-by-step explanation:
i think this is right
What is the answer to this equation below and is it a one step or two step equation?
6x+8 = 59
The queen marys 2’d height above water is about the same as a 14 story building, what is the queen mary twos height above water, pls help this is due today
Answer: Length 1,132 ft
Step-by-step explanation: Im not sure if this is the one your talking about but here.