Answers
Answer:
Step-by-step explanation:
Related Questions
Marine biologists are concerned that pollution from a nearby factory has affected the health of local sea urchins. Which of the following is most likely to be the population of interest?
Choose the correct answer below
A 4 sea urchins with abnormal coloration
B. All of the sea urchins near the plant
C. All of the sea urchins in the entire ocean
D. 20 sea urchins gathered from tidal pools
Answers
Answer:
its C. all of the sea urchin in the entire ovean is the most likely to be the population of interest
The population of interest will most likely be option B. all of the sea urchins near the plant.
The term 'population of interest' refers to the group or number from which inference is made or done for research purposes. And from this group, the researcher will try to draw conclusions from his/her study.
A population of interest is generally taken for studies or statistical references.In the given scenario, the biologists found that the nearby factory is directly affecting the health of the local urchins.And in conducting the research, the population of sea urchins near the plant will be taken or regarded as the population of interest.For the marine biologists to determine the extent of the factory's effect on the sea urchins, they would consider or take the sea urchins near the factory population as the population of interest. Thus, the correct answer is option B.
Learn more about population of interest here:
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Devin is investigating the relationship between the temperature in degrees Fahrenheit and the number of gallons sold at a lemonade stand on each day during a particular week
Answers
Answer:
d. A good line of best fit is y= 0.36x -20.15 because this is what the regression calculator returns if all the data except the point (86, 2) are entered. :)
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
I believe
Have a nice day :)
3. Molly bought four rose bushes for $16.40 each. Use
mental math to find the total cost of the bushes.
Justify your answer by using the Distributive Property.
Answers
Answer:
$65.60
Step-by-step explanation:
4×16.40 = 4×(16+0.40) = (4×16) + (4×0.40) = 64 + 1.60 = 65.60
hey will mark highest
Answers
Answer:
Step-by-step explanation:
x + 159 = 180
x = 21
Answer:
x + 159 = 180
x = 21
Step-by-step explanation:
2x + y= -1
y=ax?
10. For the system of equations above, what must be
true about the value of a if the system has no
solutions?
Answers
Answer:
a = -2
Step-by-step explanation:
The graphs of the lines would have to be parallel. So they must have the same slope. 2x + y = -1 changed to slope-intercept form is y = -2x - 1. Therefore, the slope of that line is -2. y = ax is in slope-intercept form where the slope is a. So, a must equal -2.
To estimate the mean height of female high school juniors, you take a
random sample of 30 female students and get these results (in inches):
72,51, 67, 68, 61, 69, 58, 56, 60, 56
66, 61, 60, 59, 59, 54, 58, 53, 68, 63
57, 62, 63, 64, 56, 62, 58, 67, 57, 70
If the o is 5.3, based on past research, and you want to construct a 97%
confidence interval using (estimate) + (margin of error)= (estimate)
what's your point estimate of ?
A. 30
B. 5.4
C. 65
D. 61.17
Answers
Answer:
61.16667 ; (58.958, 63.375)
Step-by-step explanation:
Given the data :
72,51, 67, 68, 61, 69, 58, 56, 60, 56, 66, 61, 60, 59, 59, 54, 58, 53, 68, 63, 57, 62, 63, 64, 56, 62, 58, 67, 57, 70
Standard deviation, σ = 5.3
Sample size, n = 30
The point estimate of the population mean:
Mean, m = Σx/n
Σx = 1835 ; n = 30
m = 1835 / 30
m = 61.16667
Confidence interval :
m ± Tn-1,α/2 * σ/sqrt(n)
61.16667 ± T30-1,0.03/2 * 5.3/sqrt(30)
61.16667 ± T29,0.015 * (5.3/sqrt(30))
61.16667 ± 2.282175 * (0.9676431)
Lower bound = 61.16667 - 2.20833 = 58.95834
Upper bound = 61.16667 + 2.20833 = 63.375
(58.958, 63.375)
What is the inverse function of (2)
2
?
Answers
a,b,c,and d
Step-by-step explanation:
there came a time, when a child cheated on their math work. getting the answers they needed wasnt all
they needed someone to make them feel terrible abuot it
and thats what im here to do
PICK ALL OF THEM
MASH YOUR COMPUTER
Suppose you have $50, how much change would you receive if you bought a DVD that cost $27.99?
Answers
Answer:
$33.01
Step-by-step explanation:
Answer:
33.01
Step-by-step explanation:
Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The tables shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line of best fit
Answers
Complete question :
A college football coach wants to know if the is a correlation between his players' leg strength and the time it takes for them to sprint 40 yards. he sets up the following test and records the data:
Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The tables shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line of best fit? How many seconds should he expect a player to take to run 40 yards if that player can do 22 leg-press repetitions?
Leg Press (reps)|40-yard Dash (s)
15 |5.2
18 |6.3
8 |6.8
30 |8.2
26 |8.0
12 |5.3
21 |5.9
Answer:
ŷ = 0.1073X + 4.5365
6.9
Step-by-step explanation:
Leg Press (reps)X:
15
18
8
30
26
12
21
Y:
5.2
6.3
6.8
8.2
8.0
5.3
5.9
Using a regression calculator :
The equation of line of best fit is :
ŷ = 0.1073X + 4.5365
Slope or gradient = 0.1073
Intercept = 4.5365
X = independent or predictor variable (leg press)
Y = predicted variable (40 yard dash)
B)
X = 22
Y = 0.1073(22) + 4.5365
Y = 6.8971
Y = 6.9
Please help me answer this!!!!
Answers
[tex]7 \frac{1}{2} [/tex]
Explanation:First, convert any mixed numbers to fractions. An easy way to convert:
[tex]4 \frac{1}{2} = 4 \times 2 + 1[/tex]
=[tex] \frac{9}{2} \div \frac{3}{5} [/tex]
Then, apply the fractions formula for division.
[tex] \frac{9 \times5 }{2 \times 3} = \frac{45}{6} [/tex]
Then, simplify.
[tex] \frac{45}{6} = 7 \frac{1}{2} [/tex]
The office store sells printer paper. Last week, The store sold 324 packs of white paper, which was 40% of the paper it was sold for the whole week. The store also sold 81 packs of blue paper,243 packs of yellow paper,and 162 packs of pink paper, The store manager needs to determine The percentages of the other paper sold
Answers
Answer:
72%
Step-by-step explanation:
Please help me with my work
Answers
Answer:
In the image below
Step-by-step explanation:
(Ooo yay 2-column proofs are fun)
what is the length of a ketchup
Answers
Answer:
The packet of ketchup is 7.5cm long
I took this so that the long lines are a full cm and half lines are half a cm
if you take the half lines as 1cm then the answer is 8
3 is added to n translate expression.
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Answer:
the ANSWER is 1
Photo attached please help
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so far carmella has collected 14 boxes of baseball cards there are 31 cars n each box carmella estimates that she has about 3000 cards so she buys albums that hold 500 cards each
Answers
Answer:
Step-by-step explanation:
I need help on this problem
Please
The tutor button has not been working
Answers
Answer: 14 and 3.5
Step-by-step explanation:
Please help how do you do this? Can someone please explain
Answers
Domain: (-♾, ♾)
Range: (-5, 4)
Please help please please help
Answers
Answer:
x=1
Step-by-step explanation:
i did it
3*4=12
x*4=4
Or
12/4=3
4/4=1
HELP NEEDED! Thanks if you do!!
Answers
Answer:
We conclude that:
csc (U) = 26 / 24
Step-by-step explanation:
Given
The angle ∠U The opposite of the angle ∠U = 24The hypotenuse = 26To determine
csc (U) = ?
Using the trigonometric ration
sin Ф = opposite / hypotenuse
substituting Ф = U, opposite = 24, hypotenuse = 26
sin (U) = 24/26
We know that: csc (U) = [1 ] / [sin(U)]
Therefore,
csc (U) = [1 ] / [sin(U)]
= 26 / 24
Therefore, we conclude that:
csc (U) = 26 / 24
Maya painted 3/4 of her art project in the morning and 1/8 of her project in the evening which wich equation can my used to find how much of project she painted in all
Answers
Answer: The project is 7/8 painted.
Step-by-step explanation: Add 1/8 to 3/4 for the total.
Use the least common denominator, /8
3/4 is equivalent to 6/8.
6/8 + 1/8 = 7/8
Step-by-step explanation: To find how much of the wall Maya painted, we will add the two fractions. Let's do it step-by-step.
1. These fractions have unlike denominators, to make them alike, we have to find the LCD (Least Common Denominator).
3/4 = 6/8
1/8 = 1/8
Note: What you did to the bottom, you do to the top.
1a. I multiplied 2 by 3 and 4 to get 6/8.
1b. I multiplied 1 by 1 and 8 to get 1/8.
2. Since we have like denominators, we can add!
[tex]Solve:\frac{6}{8} +\frac{1}{8} = \frac{7}{8}[/tex]
Therefore, your answer is 7/8. The fraction don't need to be reduced to lowest terms.
Need help in 31 and 33 thanks need ASAP
Answers
Answer:
31: |8| +|18|=|26|
33: |2| +|9|=|11|
since these numbers are already positive, the numbers will stay the same just add the bars in front and after it.
4x2 + 15x + 9 = 0
Solve
Answers
Answer:
x = -3 and x = - 3/4
Step-by-step explanation:
We can use the quadratic formula to solve for x, considering a = 4 , b = 15, and c = 9:
[tex]x=\frac{-b+/- \sqrt{b^2-4a*c} }{2*a} \\x=\frac{-15+/- \sqrt{(-15)^2-4*4*9} }{2*4}\\x=\frac{-15+/- \sqrt{81} }{8}\\x=\frac{-15+/- 9 }{8}=-\frac{6}{8} \,\,or\,\,-\frac{24}{8} \\x=-\frac{3}{4}\,\,or\,\,x=-3[/tex]
I hope you can see my writing
Nvm I’ll just type it out just incase
4x^2+15x+9=0
(4x^2+3x)+(12x+9)=0
X(4x+3)+3(4x+3)=0
(X+3)(4x+3)=0
X+3=0. 4x+3=0
X=-3. 4x=-3
X=-3/4
X=-3, x=-3/4
Answer in solution set is= {-3, -3/4}
The coach uses a scale drawing of the soccer fieldin the diagram, to review plays with the team. The diagram uses a scale of 1/4 in.: 30 ft. Explain how to use the scale and the scale drawing to find the actual dimensions of the soccer field.
PLS HELP ME ITS DUE
Answers
Answer:
10
Step-by-step explanation:
12
200% of 15 is what number
Answers
Answer:
=200/100 ×15
=2×15
=30
Hope it helps...
Proportionally means
2 fractions (ratios) are NOT equal
2 fractions (ratios) are equal
Answers
Answer:
2 fractions are equal
Step-by-step explanation:
We say that two quantities are proportional if one is always the same multiple of the other.
Say a recipe calls for 2 cups of flour to 3 eggs. That proportion, 2 cups flour : 3 eggs, will always stay the same, no matter how many serving we make. If we make 2 servings, we'd double to 4 cups and 6 eggs, but that wouldn't change the proportion. After all,
[tex]\frac{2}{3}=\frac{4}{6}[/tex]
I need help quick plz
Answers
Step-by-step explanation:
3rd one is the answer
-2x+1
Answer:
f(x) = 2x + 1
Step-by-step explanation:
You can plug in the value to each one and see if the function is true. The only one in which the function is true is f(x) = 2x + 1, so the answer is 2x + 1.
At a football game, 45% were supporting the visiting team. If 946 people attending supported the home team, what was the total number of people attending the game?
Answers
Answer: 1720
Step-by-step explanation:
Pls help, my teacher told me to translate this as an assignment so pls help.
th3f1r5t345y4551gnm3ntf0r411th35t9d3nt5.
and also this to. th3l45td4y0f5ch00l15601n6t0b31n4wh1l3.
answer key. y=7 -------- e=3 ---------- s=5 ---------- a=4 -----------9=u -----------i=1 ------------- o=0 ---------------- z=2 -------------g=6 --------------8=b.
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The iastday of school is going to be in awhile
Hope this helps!! <3
What would the height need to be for this curve to be a density curve?
-1/6
1/6
1/5
1
Answers
Answer:
One-sixth or 1/6
Step-by-step explanation:
A probability density curve satisfies several rules: It never goes below the horizontal axis, i.e. it's never negative. ... The chance of the quantity falling between a and b is the area under the curve between the point a and b.
The height of density curve is 1/6. Therefore, option B is the correct answer.
What is density curve?In probability theory, a probability density function, or density of a continuous random variable, is a function whose value at any given sample in the sample space can be interpreted as providing a relative likelihood that the value of the random variable would be close to that sample.
A density curve is always on or above the horizontal axis. The area underneath a density curve is exactly 1. The area under a density curve and above any range of values is the relative frequency of all observations that fall in that range.
The curve will never dip below the x ≥ Height>0
Area under the curve=Area of a rectangle with length=height of curve width=6
=Height of curve × 6
Area under the curve = 1
⇒ Height of curve × 6=1
=1/6
The height of density curve is 1/6. Therefore, option B is the correct answer.
To learn more about the density curve visit:
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