Answer:
C
Step-by-step explanation:
:)
im almost done with this hw. plz help!!! give explanation if you actually know the answer so ik u dont just want points
Answer:
B or C
Step-by-step explanation:
Because there is a 50% chance on landing on a odd number 2 or a even number 2.
Hope this helps bye
Due in 5 mins!! FIND THE MISSING LENGTHS!!!!!
Please help Due in 3 Min!
3.2.5
Find a so that the point (-1,4) is on the graph of f(x) = ax^2+1
9514 1404 393
Answer:
a = 3
Step-by-step explanation:
Evaluating the given function at the point, we have ...
f(-1) = a(-1)^2 +1 = 4
a +1 = 4
a = 3
The value of 'a' is 3.
[tex]1 3/12-2/3=[/tex]
Answer:
[tex]\frac{5}{12}[/tex]
Step-by-step explanation:
The given problem is a subtraction problem between fractions. The first step in a problem like this is to convert both fractions to a common denominator. In other words, multiply both the numerator and denominator of a fraction by the same value such that the denominator of one of the fractions is the same as the other fraction. The numerator of a fraction is the value over the fraction bar, whereas the denominator is the value under it. Multiplying any fraction by a number over itself is the same as multiplying it by one, thus, the equation will remain true, and be equivalent to the original expression.
[tex]\frac{13}{12}-\frac{2}{3}[/tex]
Convert to a common denominator,
[tex]\frac{13}{12}-(\frac{2}{3}*\frac{4}{4})[/tex]
[tex]\frac{13}{12}-\frac{8}{12}[/tex]
Now perform the subtraction, subtract one numerator from the other, remember, do no perfrom any more operations with the denominators,
[tex]\frac{5}{12}[/tex]
An IQ test is designed so that the mean is 100 and the standard deviation is 21 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99% confidence that the sample mean is within 6 IQ points of the true mean. Assume that σ=21 and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation.
Answer:
The required sample size is 82. This number of people could be sampled in an afternoon, for example, at a commercial center in a city, which means that it is a reasonable sample size for a real world calculation.
Step-by-step explanation:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.99}{2} = 0.005[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.005 = 0.995[/tex], so Z = 2.575.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
Assume that σ=21 and determine the required sample size.
A sample size of n is needed.
n is found when M = 6. So
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]6 = 2.575\frac{21}{\sqrt{n}}[/tex]
[tex]6\sqrt{n} = 2.575*21[/tex]
Dividing both sides by 3
[tex]\sqrt{n}= 2.575*3.5[/tex]
[tex](\sqrt{n})^2 = (2.575*3.5)^2[/tex]
[tex]n = 81.2[/tex]
Rounding up:
The required sample size is 82. This number of people could be sampled in an afternoon, for example, at a commercial center in a city, which means that it is a reasonable sample size for a real world calculation.
Cassandra reads 28 pages of a book in 1 1/6 hours. Express her reading speed in pages per hour?
Answer:
0.24 pages per hour
Step-by-step explanation:
To solve this you have to divide total pages by the hours to get the speed per hour. Here is the equation;
28 / 116 = 0.2413793103448276
Hope this helps!
If Jim works at Fire Fighting Equipment, has $32,874 in sales in one week,
and as paid a weekly salary of $452 plus a commission of .9% on sales
between $15,000 and $25,000, with 1.1% paid on sales in excess of
$25,000, no commission is paid on the first $15,000, what is his gross
earning?
Jamal and Brianna each bought 3 oranges. They sliced each orange into 6 pieces. How many oranges slices did Jamal Brianna have altogether?
Answer:The Answer is 18
Step-by-step explanation:if you have 3 oranges and each orange is sliced into 6 pieces each you multiply 3 by 6 and you get 18 and how you get 18 is you can add 6 three different times. :)
GPA vs. IQ
Predict the GPA for someone with an IQ of 100.
tu
4
35
y = 0.04% -0,8
3
.
25
GPA
2
15
1
05
20
40
80
100
120
60
IQ
Pretty sure its 3.2.......
Answer:
3
Step-by-step explanation:
edge 2021
x = -80538738812075974, y = 80435758145817515, and z =
Answer:
Step-by-step explanation:
Which of the following is a non-rigid transformation?
Answer:
c
Step-by-step explanation:
Answer:
B: Dilation
Step-by-step explanation:
Translations, rotations, and reflections are all rigid transformations because the image isn't altered. This makes a dilation a non-rigid transformation because the image is getting larger or smaller.
help pleaseeee , asap
Answer:
74
Step-by-step explanation:
1. Showing your knowledge in the problem
Well, you know that a straight line is 180 degrees, right? And you know that the angles are 52 degrees and 54 degrees. So, your equation would be set up like this: 52 + 54 + ____ = 180
2. What is 52 + 54?
106
3. Subtract 180 - 106
74
Hope that helps!
Answer:
180 - 52 - 54 = 74
x = 180 - 74 = 106°
A group of 15 people were surveyed about the month they were
born. How many of the students were born in March?
.
3/5 born in September
1/3 born in December
A baseball team loses twice as many games as it wins.The baseball season is 162 games long.How many games will the team lose
Answer:
The team will lose 108 games
What is the sum of the series? 84 Σ k=1 (3k − 8)
Answer:
What is the sum of the series? 84 Σ k=1 (3k − 8)
10,038
Step-by-step explanation:
Answer is C
Answer:
1. C. 10,038
2. C. 530,556
Step-by-step explanation:
Edge
The ratio of red jellybeans to green jellybeans is 5:9. If there are 84 jellybeans, how many are green jellybeans are there?
Answer:
30 red and 54 green jelly beans
Step-by-step explanation:
Please mark brainliest :)
The model below represents 5x = 15.
Which is the value of x in the equation 5x = 15?
On a coordinate plane, line A is the y-axis, line d is the x-axis, point C is at (0, 0), and point B is a quadrant.
Use the drop-down menus to identify the parts of the coordinate plane.
Line A is the .
Region B is .
Point C is the .
Line D is the .
Answer:
Line A is the
✔ y-axis
Region B is
✔ a quadrant
Point C is the
✔ origin
Line D is the
✔ x-axis
Step-by-step explanation: Did it on Edgen
Answer:
its line d
Step-by-step explanation:
I did the test
The product of a number and 3 increased by 9 is less than -42
TRANSLATE
Answer:
3x+9 < - 42
Step-by-step explanation:
look at pic 10 pts will mark brainilest
Answer:
There is nothing attached
Step-by-step explanation:
Where is the picture?
The slope of the line whose equation is 2x + 5y + 1 = 0 is
0-2/5
05/2
0-1/5
Answer:
0-2/5
I think this is it ;-;
I need help. This is due today~
How to solve X2 + 2x -63
Answer:
Answer is -69
Step-by-step explanation:
-69 bc 69 is always correct
Answer:
( x − 7) ( x + 9 )
Step-by-step explanation:
Factor x 2 + 2 x − 63 using the AC method.
HELPPP
I HATE LINKS
Pretty sure it´s 12.25
61.25 /5=12.5
you can check this by doing 12.5 x 5 ; 15 or 30 and you´ll get the same product in monthly earned
Pearl sent a box of 36 apples and oranges to her sister if 5/9 of shipments were apples how many apples did she send
Answer:
20 apples
Step-by-step explanation:
you do 36×5/9
36÷9=4
4×5=20
Three postal workers can sort a stack of mail in 15 minutes, 15 minutes, and 30 minutes, respectively. Find how long it takes them to sort the mail if all three work together.
min
Answer: 10 minutes
Step-by-step explanation:
x·1/20 + x·1/25 + x·1/100 = 1
Multiply each term by 100 to clear the equation of all fractions
100x/20 + 100x/25 + 100x/100 = 100
5x + 4x + 1x = 100
10x = 100
x = 10
The answer is 10 minutes
Show work please it has to be done at 2:35
Step-by-step explanation:
1. -10b+b=-9
It is like you are doing this:
-10+1=-9
5. 5k+7k=12k
5+7=12
3. 1+5v+v= 1+6v
Like: 5+1
2.-x-3x=-4x
Like:-3-1=4 (both are negative numbers and you just add the second one)
4.-7n-7-8+10n=3n-15
You are doing this with n:
10-7=3 and this with numbers:
-7-8=-15 (both negative again)
6.a-2+1+4a= 5a-1
Like this: 4+1=5 and -2+1=-1
7. 8(x+10)= 8*x+8*10= 8x +80
8. 8(1+6p)= 8*1+8*6p= 8+48p
9.-5(-7+7n)= 35-35n ( when you * negative and positive numbers you get negative result and when you * negative and negative numbers you get positive result)
10.-(9m+7)= -9m-7 ( when you have - before () every number changes its sign).
Sorry for messy writing... Hope this helps.
Find the surface area of the cylinder and round to the nearest tenth.
Answer will be a fraction.
A group of coins is shown below.
What is the probability and its
complement of randomly
selecting a nickel?
Answer:
1/3
Step-by-step explanation:
3 out of the nine coins are nickels, when that is simplified your fraction becomes 1/3
