Answer:
80 4 4
___ x 60 = ____ 60 = _____ x 12 = 48 questions he will need to get right.
100 5 1
(-3 1/3, -1 1/3) (1/3,2 1/3) (-1 1/3,3 1/3) (9, -1) (-3,-10) (1 1/3, -1 1/3)Quadrant 1 Quadrant II Quadrant II Quadrant IV
will make u as branilyest
Answer:
(-3 1/3, -1 1/3) Quadrant lll
(1/3, 2 1/3) Quadrant l
(-1 1/3, 3 1/3) Quadrant ll
(9, -1) Quadrant lV
(-3,-10) Quadrant lll
(1 1/3, -1 1/3) Quadrant IV
Step-by-step explanation:
Hope this helps! Ask any questions in the comments <3
Question 1
Researchers want to find a way to increase the growth rate of corn so it can be harvested more often. To test the effectiveness of a new type of spray fertilizer, plants grown from 200 corn seeds were divided equally into two groups: a treatment group and a control group. The treatment group was frequently sprayed with the new type of fertilizer. The growth in centimeters of each corn plant was noted before and after the treatment.
The results showed that the mean change in the growth rate by the treatment group is 8 points more than that of the control group. To test whether the results could be explained by random chance, researchers created a table that summarizes the results of 1,000 re-randomizations of the data with differences of means rounded to the nearest 2 points.
Consider the significance level to be set at 5%, so results less than 5% can be considered statistically significant.
Part B
Question
Which statement is true about the result considering a significance level of 5%?
The result is not statistically significant, which implies that spraying the corn plants with the new type of fertilizer does increase the growth rate.
The result is statistically significant, which implies that spraying the corn plants with the new type of fertilizer does increase the growth rate.
The result is statistically significant, which implies that spraying the corn plants with the new type of fertilizer does not increase the growth rate.
The result is not statistically significant, which implies that this result could be due to random chance.
Answer: The result is statistically significant, which implies that spraying the corn plants with the new type of fertilizer does increase the growth rate.
Step-by-step explanation:
The statement that is true about the result considering a significance level of 5% is B. The result is statistically significant, which implies that spraying the corn plants with the new type of fertilizer does increase the growth rate.
What is Statistics?This refers to the analysis of numbers and data to make an inference about a thing.
Hence, we can see that based on the research made about the growth rate of corn, we can see that from the significance level of 5%, we can see that spraying the corn plants with the new type of fertilizer does increase the growth rate.
Read more about statistics here:
https://brainly.com/question/12150562
#SPJ2
I need help plz
urgent
Answer:
B
Step-by-step explanation:
2x - × + 4x simplify
Step-by-step explanation:
2x - × + 4x
=5x
!!!!!!!!!!!
The probability that a birth in the United States is male during 2018 is 0.511. Suppose a random number generator from 1 to 1,000 is used as a statistical model to create simulated results for births in the United States during 2018. Suppose the numbers 1 to 511 represent a male birth in the United States during 2018 and 512 to 1,000 represent a female birth in the United States during 2018. Explain whether the following results are consistent with the model, and if not, explain the expected number of male births and the expected number of female births for 300
trials.
In 300
simulated trials, 171 of the births are female and 129 are male.
Answer:
Step-by-step explanation:
The probability that a birth in the United States is male during 2018 is 0.511. So there are slightly more males than females born.
In 300 simulated trials, 171 of the births are female and 129 are male. More females are born so it is not consistent with the model.
The expected number of male birth for 300 trials should be 300*0.511 = 153.
The expected number of female = 300-153 = 147
In a survey of 802 U.S. adult drivers, 265 state that traffic is getting worse in their community. Construct a 95% confidence interval for the proportion of residents who think traffic is getting worse in their community.
Answer:
The 95% confidence interval for the proportion of residents who think traffic is getting worse in their community is (0.2978, 0.3630).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the z-score that has a p-value of [tex]1 - \frac{\alpha}{2}[/tex].
In a survey of 802 U.S. adult drivers, 265 state that traffic is getting worse in their community.
This means that [tex]n = 802, \pi = \frac{265}{802} = 0.3304[/tex]
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a p-value of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3304 - 1.96\sqrt{\frac{0.3304*0.6669}{802}} = 0.2978[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3304 + 1.96\sqrt{\frac{0.3304*0.6669}{802}} = 0.3630[/tex]
The 95% confidence interval for the proportion of residents who think traffic is getting worse in their community is (0.2978, 0.3630).
Solve the system of equation:
y = x + 3
y = 2x + 5
-5, 2
-8, 11
-2, 1
2,-1
Answer:
x=-2, y=1. (-2, 1).
Step-by-step explanation:
y=x+3
y=2x+5
------------
x+3=2x+5
3=2x-x+5
3=x+5
x=3-5
x=-2
y=-2+3=1
Slove it step by step
Answer:
17is the truth
Step-by-step explanation:
Work out the size of angle x
Answer:
13
Step-by-step explanation:
help 4 brainliest please
Answer:
A. (0,1,2,4,6,8,9) is ur Answer
Answer:
A
Step-by-step explanation:
An object is thrown down with an initial velocity of 8 ft/sec. When will the object have fallen 120 feet?
Step-by-step explanation:
[tex]time = \frac{(final \: - \: initial \: displacement)}{(final - initial \: velocity)} \\ time = \frac{0 - 120}{0 - 8} \\ time = 15 \: seconds[/tex]
When Joyce went to the store, she bought a 32-ounce jar of jelly, a 16-
ounce jar of pickles, and an 8-ounce tub of butter. About how many total
grams are the three items? (1 ounce = 28 grams)
Answer:
1568 grams
Step-by-step explanation:
32 x 28 = 896 ][ 16 x 28 = 448 ][ 8 x 28 = 224 ; 896 + 448 + 224 = 1568
I need help with this!! What is the answer???!
Answer:
53
Step-by-step explanation:
Sum of interior angles of a pentagon = 540°
Therefore,
2x° +2x° + 3x° + 3x° + 10 = 540°
10x° + 10° = 540°
10x° = 540° - 10°
10x° = 530°
10x = 530
x = 530/10
x = 53
please help me i really need help please help me
9514 1404 393
Answer:
735.6 in³
Step-by-step explanation:
The formula for the volume of a sphere is ...
V = 4/3πr³ . . . . where r is the radius
The radius is half the diameter, so we can write this in terms of diameter as ...
V = (4/3)π(d/2)³ = (π/6)d³
Using the given diameter, the volume is ...
V = (π/6)(11.2 in)³ ≈ 735.6186 in³
The volume is about 735.6 cubic inches.
How are the speakers of "Some Keep the Sabbath Going to Church"
and "Because I Could Not Stop for Death" similar?
A. Both fear disapproval by others.
B. Both seem angry and tormented.
C. Both are forthright and confident.
D. Both reject religious feelings.
Answer:
C. Both are forthright and confident.
Explanation:
Emily Dickinson's poems "Some Keep the Sabbath Going to Church" and "Because I Could Not Stop for Death" are poems that reflect the poet's real feelings towards things or issues that are accepted to be normal behavior or accepted norms.
But in expressing her own take on both issues, be it attending church as a show of one's religiousness, or death, Dickinson asserts her own beliefs and opinions against the 'normal'. And in both poems, she is forthright and confident in what she believes and shows.
Thus, the correct answer is option C.
If p and q vary inversely and p is 14 when q is 2, determine q when p is equal to 7.
Answer:
-5
Step-by-step explanation:
Sorry if I'm wrong.
q=2 when p=14. 14-2= 12. There is a difference of 12 between these numbers.
q= ? when p=7. 7-12= -5.
Hope this helps :)
Y = 2x + 3 2 How does the equation of a line need to be changed to shift the line upward? 1 123 1 -3 -2 -1 -1 -2 A A. The absolute value of the slope needs to be increased. B. The absolute value of the slope needs to be decreased. C. The y-intercept needs to be increased.
Answer:
C
Step-by-step explanation:
I WILL GIVE BRAINLY!! Thank you :)
A 6 year bond with 1000 Rupees par value pays 80 Rupees interest annually and sells for 950 Rupees. What is the yield to maturity?
Answer:
9.12%
Step-by-step explanation:
Yield to maturity is also known as the internal rate of return of a bond
Internal rate of return is the discount rate that equates the after-tax cash flows from an investment to the amount invested
YTM can be calculated with a financial calculator
Cash flow in year 0 = -950
Cash flow each year from year 1 to 5 = 80
Cash flow in year 6 = 100 + 80 = 1080
YTM = 9.12%
To determine YTM 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 IRR button and then press the compute button.
What function is shown in the graph below?
PLZ HELP HELP ILL GIVE BRAINLIEST FOR RIGHT ANSWER!!!
Which line plot displays a data set with an outlier?
Answer:
The last one.
Step-by-step explanation:
It's the one that has a lot of points (from 11-16) and then one point just chilling on 5. That one point is the outlier. Hope this helps! Have a nice day :)
What is the area of a circle with a radius of 6 inches?
- 9ñi in.2
- 12 ñ in. 2
- 36 ñ in. 2
- 81 ñ in. 2
(Picture provided)
Answer:
63+1
Step-by-step explanation:
54+4
Let X and Y denote the latitude and longitude of a person who is thought to be lost in a certain part of a forest. If we assume that the density of X is uniform for 2 < X < 8.2 and the density of Y is also uniform for 3.01 < Y < 6.3, and we assume that X and Y are independent, then the joint density of X and Y is
Answer:
P(X, Y) = 1/(20.398 ) if X ∈ (2, 8.2) and Y ∈ (3.01, 6.3)
P(X, Y) = 0 if X ∉ (2, 8.2) and Y ∉ (3.01, 6.3)
Step-by-step explanation:
We know that the possible values of X (all with the same probability) are:
2 < X < 8.2
And for Y we have the range (also uniform):
3.01 < Y < 6.3
Then we have a rectangle of area.
(8.2 - 2)*(6.3 - 3.01) = 20.398
Such that the probability for all the points inside the rectangle should be exactly equal, then we will have:
P(X, Y) = 1/(20.398 ) if X ∈ (2, 8.2) and Y ∈ (3.01, 6.3)
Such that if we integrate this in the given region, the integral will be equal to 1, as we should expect.
And zero if the point is outside that region, this is:
P(X, Y) = 0 if X ∉ (2, 8.2) and Y ∉ (3.01, 6.3)
I Need help asap ! Please and thank you
Answer:
all incorrect
Step-by-step explanation:
I did it in my head so I'm sorry if wrong
Answer:
The last one is incorrect
Step-by-step explanation:
-4c^2 - 2c^2 = -6c^2
9c - c = 8c
9c - c is equal to 8c so that means the polynomial is wrong since they put 10c instead of 8c.
Need help asap!! What is the circumference of the circle shown?
Answer:
56.5
Step-by-step explanation:
Circumference = [tex]\pi d[/tex]
C = 3.14(18) = 56.52
1 hundredth + 3 tenths =?hundredths
Answer:
.01 + .3 = 0.31
Step-by-step explanation:
The diameter, D, of a sphere is 7.4mm. Calculate how he spheres volume, V.
Given :
The diameter D of sphere is 7.4 mm .
To Find :
The volume of sphere.
Solution :
Radius of sphere is r = D/2 .
r = 3.7 mm .
We know, volume of sphere is given by :
[tex]V = \dfrac{4\pi r^3}{3}\\\\V = \dfrac{4\times 3.14 \times 3.7}{3}\ mm^3\\\\V = 15.5 \ mm^3[/tex]
Hence, this is the required solution.
Which are exterior angles?
Answer:
4 and 6
Step-by-step explanation:
they are made with lines of the other angles
Answer:
I think the exterior angles are angle 4, angle 6, and angle 2.
Step-by-step explanation:
They are on the outside.
If the formula 8= x; is used to find the mean of the following sample,
what is the value of n?
2, 63, 88, 10, 72,99
A. 6
B. 7
C. 8
D. 5
Answer:
maybe 8. this seems like it is missing something. I might just be too tired though...
PLASS
HELPPP
WILL GIVE BRAINLISTTT
DUE RN
Answer:
The area of the rectangle is 0.0875 sq ft.
Step-by-step explanation:
Given that,
The length of the rectangle, L = 0.35 feet
The breadth of the rectangle, B = 1/4 feet
We need to find the area of the rectangle. The formula for the area of a rectangle is given by :
A = LB
Put all the values,
[tex]A=\dfrac{1}{4}\times 0.35\\\\A=0.0875\ ft^2[/tex]
So, the area of the rectangle is 0.0875 sq feet.