Answer:
A, B
Step-by-step explanation:
A. 12/3=4
B. 4/1=4
C. 6/4=1 1/2
D. 4/6=2/3
Answer:
A and B
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The scores on a test are normally distributed with a mean of 130 and a standard deviation of 26. What is the score that is 25 standard deviations below the mean?
Answer: The z-score for an ACT score of 26 is 0.17.
Step-by-step explanation:
Z-score:
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In a particular year, the mean score on the ACT test was 25 and the standard deviation was 5.9.
This means that
Find the z-score for an ACT score of 26.
This is Z when X = 26. So
The z-score for an ACT score of 26 is 0.17.
The z-score for an ACT score of 26 is 0.17.
What is z-score?
When assessed in terms of standard deviation units, a raw score's location in relation to its distance from the mean is indicated by a z-score. If a value is above the mean, the z-score is positive; if it is below the mean, it is negative.
In a set with mean and standard deviation , the z-score of a measure X is given by: z-score=(x-μ)/σ
How do you find z-score?
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In a particular year, the mean score on the ACT test was 25 and the standard deviation was 5.9.
This means that
We need to find z-score for an ACT score of 26.
This is Z when X = 26. So
The z-score for an ACT score of 26 is 0.17
Learn more about z-score,
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A toothpaste advertises that 30% of stains are removed after 1 week. As Alexa is brushing her teeth, she thinks "after 2 weeks, 60% of stains will be gone, and 90% after three weeks".
Using this reasoning, what percent of stains will be gone after four weeks? Does this result make sense? Why or why not?
Answer:
120%. doesn't make sense because there's nothing above 100%
MATH QUESTION PLEASE HELPPP ASAP, DUE IN AN HOUR
Answer:
Perimeter = [tex](30-\frac{3}{2}x)[/tex]
Step-by-step explanation:
Width of the rectangle has been given as [tex](5-\frac{1}{4}x)[/tex].
Convert the statement into the algebraic expression,
"Length of the rectangle is twice the width"
Length = 2(Width)
= [tex]2(5-\frac{1}{4}x)[/tex]
= [tex]10-\frac{1}{2}x[/tex]
Since perimeter of a rectangle is given by the expression,
Perimeter = 2(Length + Width)
By substituting the values of length and width in the expression,
Perimeter = [tex]2[(5-\frac{1}{4}x)+(10-\frac{1}{2}x)][/tex]
= [tex]2(15-\frac{3}{4}x)[/tex]
= [tex](30-\frac{3}{2}x)[/tex]
Therefore, expression representing perimeter is [tex](30-\frac{3}{2}x)[/tex].
Select the correct answer.
The function g(x) = x is transformed to obtain function h:
h(x) = g(x) - 5.
Which statement describes how the graph of h is different from the graph of g?
OA. The graph of h is the graph of g vertically shifted down 5 units.
OB.
The graph of h is the graph of g horizontally shifted right 5 units.
OC. The graph of h is the graph of g horizontally shifted left 5 units.
D. The graph of h is the graph of g vertically shifted up 5 units.
Answer:
A
Step-by-step explanation:
equation is of the form f(x) - a which implies a translation downwards of a units
This recipe makes 6 portions of fajitas.
Carly has 900 g of chicken, 1200 g of peppers, 150 g of onion, 60 g of spice mix and 30 tortillas.
How much more of each ingredient will she need to make 18 portions by following this recipe?
Recipe: Serves 6
500 g chicken
600 g peppers
90 g onion
25 g spice mix
12 tortillas
Answer:
She needs:
600 g chicken
600 g peppers
120 g onion
15 g spice mix
6 tortillas
Step-by-step explanation:
hope this helps and is right. p.s. i really need brainliest :)
Factor k3 + 1 completely.
Answer:
(k+1)(k²-k+1)
Step-by-step explanation:
Chris drinks 3 pints of milk a day. How much is this in cups?
Answer:
He drinks 6 cups a day.
Step-by-step explanation:
1 pint - 2 cups
3 x 2 = 6
Hey, so I really put a lot of time and effort in my answers, so if you can, could you please give me a "Brainliest" because I really want to rank up! Thank you so much for the points, and I hope the answer helped you!!! :)
Answer:
6 cups.
Step-by-step Explanation:
1 pint is equal to 2 cups.
Therefore, 3 pints of milk is equal to 2 cups of milk.
What are the next two terms in the sequence 1, 8, 27, 64..., written as coordinate pairs (n,
an)?
A) (5, 75), (6,86)
B) (5, 81), (6,100)
C)(5, 125), (6, 216)
D) (125, 5), (216, 6)
Answer:
C)(5, 125), (6, 216)
Step-by-step explanation:
Well firstly, there's no actual way to know. There could be anything there, as for any n pairs (x, y) with distinct x-s, there exists a (n-1 or less)-degree polynomial that models them perfectly, and infinitely many polynomials of degree n (or more).
If we input those terms to a polynomial interpolator, we'll get an answer every time.
With this one, it will be the right answer though!
But to be serious, let's find out what the numbers are. We can notice they're all cubic numbers.
There's 1, which is 1^3, then theres 2^3, then it's 3^3, then 4^3.
It's reasonable to expect that we are expected to assume (x, x^3) is the rule.
We can see that the answer C (5, 5^3), (6, 6^3) fits this narrative.
If f(x)= x squared and g(x)=2x^3- x squared, find f(x)-g(x).
Answer:
[tex]f(x)-g(x)=2x^2(1-x)[/tex]
Step-by-step explanation:
Given that,
[tex]f(x)=x^2\\\\g(x)=2x^3-x^2[/tex]
We need to find the value of f(x)-g(x).
Put the values of f(x) and g(x). So,
[tex]f(x)-g(x)=x^2-(2x^3-x^2)\\\\=x^2-2x^3+x^2\\\\=2x^2-2x^3\\\\=2x^2(1-x)[/tex]
So, the value of f(x)-g(x) is equal to [tex]2x^2(1-x)[/tex].
b) The diagram shows a straight line L.
i) Find the equation of line L.
Answer:
y = - 2x + 6
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2-x_{1} } }[/tex]
with (x₁, y₁ ) = (0, 6) and (x₂, y₂ ) = (3, 0) ← 2 points on the line
m = [tex]\frac{0-6}{3-0}[/tex] = [tex]\frac{-6}{3}[/tex] = - 2
The line crosses the y- axis at (0, 6 ) ⇒ c = 6
y = - 2x + 6 ← equation of line
What is the volume, in cubic meters, of a rectangular prism with a height of 14 meters, a width of 17 meters, and a length of 13 meters?
Answer:
why is brainlys tutor system not free anymore I really need help from somebody, i used to use tutors so much but now i have none ro help me
If $12.000 is invested in an account in which the interest earned is continuously
compounded at a tale of 2.5% find the totally amount in the account after 15 years.
Assume there are no other deposits or withdrawals.
Answer:
If 12,000 are put at an account with 2.5% compound interest in 15 years your total would be $17,379.58
!! IMPORTANT !!
Is it me or have i've been recently getting: "Explanation is in a file
or something like that in all of my questions I ask in brainly. its driving me crazy
:/
Answer:
Same
Step-by-step explanation:
I have been getting that too, its annoying bc I can't download it :(
PLEASE HELPPP! I'LL GIVE BRAINLEST
Answer:
hiiii....
Step-by-step explanation:
b)2and4 only
NEED ANSWER ASAP WILL GIVE BRAINLIEST FOR CORRECT ANSWER
Answer:
the correct answer is first graph because melting decreases by straight lines and goes down and the one you choose is not correct because you are not gonna have melting stops for a while (✿ ♡‿♡)
Tickets to a movie cost five dollars for adults and three dollars for students a group of friends purchase 18 tickets for $82 how many adult tickets did they buy
Answer: They purchased 14 adult tickets and 4 kids' tickets.
Step-by-step explanation:
14 x 5 = 70
3x4=12
and then add 70 plus 12 to get 82 dollars
3. What is the axis of symmetry of the graph of function f(x)=x^2 - 6x - 1
Answer:
Hi! The answer to your question is [tex]X = 3[/tex]
Step-by-step explanation:
☆*: .｡.｡.:*☆☆.*: .｡..｡.:*☆☆*: .｡.｡.:*☆☆.*: .｡..｡.:*☆
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Hope this helps!!
- Brooklynn Deka
The irrational number square root 67 is greater than [blank]
Answer:
The irrational number square root 67 is greater than whole number 8
Step-by-step explanation:
Given
[tex]\sqrt{67[/tex]
Required
Complete the sentence
No options are given.
So, we will solve the expression then compare it with the nearest smallest integer
First, we solve the given expression
[tex]\sqrt{67[/tex]
[tex]\sqrt{67} \approx 8.185[/tex]
By comparison:
[tex]8.185 > 8[/tex]
This implies that, the blank will be completed with 8
Please answer this I need this answer today God bless America and have a good day! Organize the following facts from the book “Words to Save the World” into the appropriate categories. put the sentence in the boxes that goes together from problems and solutions
Answers: Chemical companies tried to discredit Rachel and her work.
Rachel decided to work alone.
Rachel wrote a book called Silent Spring to make people aware of environmental problems.
The assistants worked too slowly.
[Problem] and [Solution]
Answer:
problems
Chemical companies tried to discredit Rachel and her work.
The assistants worked too slowly.
solutions
Rachel decided to work alone.
Rachel wrote a book called Silent Spring to make people aware of environmental problems.
Step-by-step explanation:
3 feet = _______ inches
help plzz :(
Answer:
36 inches
Step-by-step explanation:
We know that 1 ft = 12 inches
2 ft = 2 * 12 = 24 inches
3 ft = 3*12 = 36 inches
Is 14x^7 a polynomial
Answer:
yes
Step-by-step explanation:
Yes. 14x^7 is a 1-term polynomial, also called a monomial.
What sum of 500+1000
the answer would be 1500
Hi pls answer number 3’ill give brainliest thanks again!!
Answer:
It should be C
Step-by-step explanation:
I hope this helps
Ray feeds his dog 0.12 kilogram of dry dog food each day. How many kilograms of dry dog food does Ray need to feed his dog for the month of March? (March has 31 days.)
Answer:
amount of food feed each day is 0.12 kg
amount of food required to feed in March( 31 days) is 0.12*31
the answer is 3.72kg
PLEASE HELP !! ILL GIVE BRAINLIEST !!
Answer:
GFD and jik...a pair of angles on the outer side
Answer:
<HIK and <GFD
<GFD and <JIK
Step-by-step explanation:
Exterior angles are outside angles.
Hope this helps! :)
Write the base number for the expression: 1.7^3
Answer:
i might be wrong but 4.913
Step-by-step explanation:
i got this by using the calculator 1.7^3 = 4.913
Answer:
r
Step-by-step explanation:
h\
please help mehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh i suck at math
Answer:
1 - 2 - 3 - 5 - 4
maximum - minimum - Q1 - Median - Q3
Which answer represents 241.324?
A) (2x1000) + (4x100) + (1x10) + (3x1) + (2x1/10) + (4x1/100)
B) (2x100) + (4x10) + (1x1) + (3x1/10) + (2x1/100) + (4x1/1000)
Answer:
B) (2x100) + (4x10) + (1x1) + (3x1/10) + (2x1/100) + (4x1/1000)
Helppppp plsssssssssssssssssssssss ㋛
Answer:
2.7
Step-by-step explanation:
2.7 is the answer
You are welcome
is this answer correct?
Answer: ya
Step-by-step explanation: