Answer:
Blank 1 : can be ; blank 2 : cannot be
Step-by-step explanation:
What is the measure of angle x? Round to the
nearest tenth. .
28
21
xº
What is the perimeter of the trapezoid? In unit
Answer:
20 units
Step-by-step explanation:
the perimeter = 7+4+4+5 = 20 units
Which of the following is the point-slope form of the equation with slope 3 that goes through the point (4,2)?
Answer:
y–y1 =m (X–X1)
y–2=3(x–4)
y=3x–10
Hermione thinks she has discovered a protection spell that will reduce the pain of the Cruciatus curse. She believes that a sample of people protected by her spell will rate their pain as less severe than the average person who does not have her protection spell. Her null hypothesis for this study would
Answer:
There will be no difference in pain ratings from people protected by her spell and people who aren't protected by her spell.
Step-by-step explanation:
The claim in this scenario is the alternative hypothesis, which is what we wish to test ; the alternative hypothesis is thus ; people who are protected by spell will rate their pain as a result of cruciatus curse as less severe than the average person who does not use her protection spell ;
As we know, the null hypothesis is the opposite of the alternative hypothesis and the initial truth, which is ;
The average pain felt by both the user of the pain protections spell and those who do not feel the same amount of pain.
What is the absolute value of -62
PLEASE HELP ASAP!!! WILL MARK BRAINLIEST !!
Answer:
CA = LJ
Step-by-step explanation:
The third side
CA = LJ
Answer:
CA=LG is correct answer
Identify the parent function of g(x)= x^2-2
Answer:
Identify the parent function
g(x)=−x+2−−−−−−√
1-Identify the parent function
2-Identify the transformations being applied, in appropriate order
3-sketch a graph of the transformed function
my work for first one
from parent function
Step-by-step explanation:
Answer:
g(x) =x^2 is the answer
Step-by-step explanation:
I hope this will help you
Standard Error from a Formula and a Bootstrap Distribution Sample A has a count of 30 successes with and Sample B has a count of 50 successes with . Use StatKey or other technology to generate a bootstrap distribution of sample differences in proportions and find the standard error for that distribution. Compare the result to the value obtained using the formula for the standard error of a difference in proportions from this section.
Answer:
Using a formula, the standard error is: 0.052
Using bootstrap, the standard error is: 0.050
Comparison:
The calculated standard error using the formula is greater than the standard error using bootstrap
Step-by-step explanation:
Given
Sample A Sample B
[tex]x_A = 30[/tex] [tex]x_B = 50[/tex]
[tex]n_A = 100[/tex] [tex]n_B =250[/tex]
Solving (a): Standard error using formula
First, calculate the proportion of A
[tex]p_A = \frac{x_A}{n_A}[/tex]
[tex]p_A = \frac{30}{100}[/tex]
[tex]p_A = 0.30[/tex]
The proportion of B
[tex]p_B = \frac{x_B}{n_B}[/tex]
[tex]p_B = \frac{50}{250}[/tex]
[tex]p_B = 0.20[/tex]
The standard error is:
[tex]SE_{p_A-p_B} = \sqrt{\frac{p_A * (1 - p_A)}{n_A} + \frac{p_A * (1 - p_B)}{n_B}}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{\frac{0.30 * (1 - 0.30)}{100} + \frac{0.20* (1 - 0.20)}{250}}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{\frac{0.30 * 0.70}{100} + \frac{0.20* 0.80}{250}}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{\frac{0.21}{100} + \frac{0.16}{250}}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{0.0021+ 0.00064}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{0.00274}[/tex]
[tex]SE_{p_A-p_B} = 0.052[/tex]
Solving (a): Standard error using bootstrapping.
Following the below steps.
Open StatkeyUnder Randomization Hypothesis Tests, select Test for Difference in ProportionsClick on Edit data, enter the appropriate data Click on ok to generate samplesClick on Generate 1000 samples ---- see attachment for the generated dataFrom the randomization sample, we have:
Sample A Sample B
[tex]x_A = 23[/tex] [tex]x_B = 57[/tex]
[tex]n_A = 100[/tex] [tex]n_B =250[/tex]
[tex]p_A = 0.230[/tex] [tex]p_A = 0.228[/tex]
So, we have:
[tex]SE_{p_A-p_B} = \sqrt{\frac{p_A * (1 - p_A)}{n_A} + \frac{p_A * (1 - p_B)}{n_B}}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{\frac{0.23 * (1 - 0.23)}{100} + \frac{0.228* (1 - 0.228)}{250}}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{\frac{0.1771}{100} + \frac{0.176016}{250}}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{0.001771 + 0.000704064}[/tex]
[tex]SE_{p_A-p_B} = \sqrt{0.002475064}[/tex]
[tex]SE_{p_A-p_B} = 0.050[/tex]
ayuda ÷18=40 que número falta
Answer:
720
Step-by-step explanation:
x÷18=40
x=18•40
x=720
round it to the underlined digit
pls help
Can someone please solve this?
Answer:
pleaee mark as brain list please give me some thanks
Which inequality has -12 in its solution set?
A
B
с
D
X+6 <-8
X+42-6
X-3-10
x+554
СА
С В
oc
D
Answer:
the answer is a. x+6<-8 I hope I'm correct
What is the solution to -2(8x - 4) < 2x + 5?
Answer:
See image below:)
Step-by-step explanation:
what is the value of q?
Answer:20 square-root 5
Step-by-step explanation:
The batteries of 150 MP3 players were tested to see if they were
defective. Of those batteries, 20 were defective. Estimate the
The batteries of 150 MP3 players were tested to see if they were
defective. Of those batteries, 20 were defective. Estimate the
the population mean that a battery will be defective
Answer:
The estimate of the population proportion of defective battery is 0.1333.
Step-by-step explanation:
Estimate of the population proportion of defective battery:
The estimate of the population proportion is the sample proportion.
Sample proportion:
Number of desired outcomes divided by the number of total outcomes.
Proportion of defective battery:
20 defective out of 150. Thus:
[tex]p = \frac{20}{150} = 0.1333[/tex]
The estimate of the population proportion of defective battery is 0.1333.
I need the answer fast plzzz
Answer:
A
Step-by-step explanation:
compare the numbers
Plz help me solve this algebra problem
Answer:
Step-by-step explanation:
How many once’s are equal to 7 pounds
The
Slope
a line that goes
through the points (r, 6 ) and (4,2
is 4 find r
A model train is built at a scale of 1 to 60. If the model train is 10 inches long, how many feet long is the actual train?
Answer:
Step-by-step explanation:
um yes..!
A jar contains 6 red marbles numbered 1 to 6 and 8 blue marbles numbered 1 to 8. A marble is drawn at random from the jar. Find the probability that the marble is blue or even-numbered.
Answer:
11/14
Step-by-step explanation:
(P of blue marble) + (P of even numbered) - (P blue and even) =
8/14 + 7/14 - 4/14 = 11/14
A camera rental company charged a fixed amount plus a fee based on the number of days for which the camera is rented. The graph below shows the amount paid for a different number of days to rent the camera:
Answer:
$40
Step-by-step explanation:
It's the value on the y-axis. (0 days)
What is the slope of the line that contains the points (-1,-1) and (3, 15)?
O A.
1
4
B. 4
O C. -
4
D. -4
Answer:
its b
Step-by-step explanation:
What is the sum of 2/3 + 1/5
Answer:
13/15
Step-by-step explanation:
1/5=3/15
2/3=10/15
10/15+3/15=13/15
The height, width and length of a small box are consecutive integers with the height being the smallest
of the three dimensions. If the length and width are increased by 2 cm each and the height is tripled,
then the volume of the box is increased by 552 cm3
. Use algebraic techniques to find the dimensions of
the original small box.
9514 1404 393
Answer:
4 cm, 5 cm, 6 cm
Step-by-step explanation:
If x represents the height of the original box, the other two dimensions are ...
width = x+1
length = x+2
and the volume is ...
V = HWL = x(x +1)(x +2) = x³ +3x² +2x
__
After the change in dimensions, the height is 3x, the width is x+3, and the length is x+4. The new volume is ...
V = HWL = 3x(x+3)(x+4) = 3x³ +21x² +36x
The difference in volumes is ...
(3x³ +21x² +36x) -(x³ +3x² +2x) = 552
In standard form, this equation is ...
2x³ +18x² +34x -552 = 0
Factoring out 2 gives ...
x³ +9x² +17x -276 = 0
Possible rational roots are 1, 2, 3, 4, 6, and other divisors of 276. The largest possibility worth considering is less than ∛276 ≈ 6.5. Trial and error, or a graphing calculator can show us that x=4 is the only real solution to this equation.
The dimensions of the original small box are 4 cm × 5 cm × 6 cm.
use quadratic formula to solve these equation (a).3x²+6x+2=0
Answer:
Step-by-step explanation:
3x² + 6x + 2 = 0
Quadratic Formula is:
x = -b ± √b²- 4ac/2a
So...
Δ = b² - 4ac = 6² - 4.3.2 = 12
x = -6 ± √Δ/2.3 = -6 ± √12/6
x' = -6 + √12/6 ≈ -0,4227
x'' = -6 - √12/6 ≈ -1,5774
S = { -0,4227 , -1,5774 }
I think this is it.GOOD STUDIES!
if a student is selected at random find the probability the student is a female given that it’s a junior round to the nearest whole percent
Answer: 40%
Step-by-step explanation:
Answer:
75
Step-by-step explanation:
what I did is that I added 6 and 2 (2 males and 6 women) so that's 8, then I put it as a fraction of 6/8, and I just searched what 6/8 as a percentage was :b
I'm really sorry if u don't understand what I'm trying to say, I'm really bad when it comes to write in English x,d
Consider the following stocks: • Stock A is expected to pay a dividend of £4 forever; • Stock B is expected to pay a dividend of £2 next year, £2.50 in year 2, with dividend growth expected to be 3% per annum thereafter. If the required return on similar equities is 9%, calculate the price of each stock.
Answer:
£44.44
£40.06
Step-by-step explanation:
Stock A
Price of a perpetual dividend payment = dividend / required return
4 / 0.09 = 44.44
Stock B
price is equal to the present value of the dividend
Value in the second stage of constant growth =( 2.5 x 1.03) / (0.09 - 0.03) = 42.92
Cash flow in year 1 = 2
cash flow in year 2 = 2.5 + 42.92
I = 9%
PV = 40.06
To find the PV using a financial calculator:
1. Input the cash flow values by pressing the CF button. After inputting the value, press enter and the arrow facing a downward direction.
2. after inputting all the cash flows, press the NPV button, input the value for I, press enter and the arrow facing a downward direction.
3. Press compute
8x8-5x20
12
45
64
-36
-15
-10
The answer is negative 36. -36
Sum of all edges of all shape
Answer:
Infinient amount buddy. They are infinent amounts of polygons, as a polygon is a shape with more then 3 sides and closed. This means as long as a number is bigger then 3, there will be a shape for it, so infinent sides
Step-by-step explanation: