A farmer learns of a new type of corn that is supposed to have a higher yield of ears. From previous crops, he knows approximately how many ears of corn 10 plants will produce from the original seeds. The farmer decides to plant the new type of corn to determine if the seeds will produce a higher number of ears of corn. He plants the first 100 seeds of the new type of corn seeds in the field he uses for corn. When it is time to harvest, he randomly selects 10 plants and counts the number of ears. The farmer compares the number of ears with the yield he received the previous year from 10 plants using the original corn seeds. Because the new type of corn produced a higher number of ears, he concludes that the new type of corn does produce more ears of corn. Which of the following statements is not true about this experimental design?

Because the farmer used the seeds from the top of the packet and did not randomly select the seeds, the conclusion is suspect.
Because the farmer used a comparison between the yield of the new type of corn and the yield from the previous corn seeds, the conclusion is valid.
There may be other variables that affected the yield of corn between this year’s crop and last year’s crop; therefore, the conclusion would be suspect.
Because the farmer did not have two groups growing at the same time, one with the new type of corn and one with the original type of corn, the conclusion may be suspect.

Answers

Answer 1

Answer:

Because the farmer used a comparison between the yield of the new type of corn and the yield from the previous corn seeds, the conclusion is valid.

Step-by-step explanation:

Got correct on Edge.

Answer 2

Answer:

It's B

Step-by-step explanation:


Related Questions

1. Greg bought a huge Christmas tree. He had to pay a
25% advance to reserve the tree. How much did he pay
to reserve the tree if the cost of the tree is $300?
Answer:

Answers

Answer: $1,200

Step-by-step explanation:

Since multiplying 25% would take off 25% from 300, do the opposite (aka divide .25 from 300).

300/.25 = 1,200

A watering can dispenses water at the rate of 0.3 gallon per minute. The original volume of water in the can was 7 gallons. Which set of ordered pairs shows the volume of water in the can in gallons (y), as a function of time in minutes (x), from the first minute after the can starts dispensing water? (1 point)

{(1, 6.7), (2, 6.4), (3, 6.1)}
{(1, 7.0), (2, 6.7), (3, 6.4)}
{(6.7, 1), (6.4, 2), (6.1, 3)}
{(7.0, 1), (6.7, 2), (6.4, 3)}

Answers

Answer:

The correct ordered pairs are:

{(1, 6.7), (2, 6.4), (3, 6.1)}

Option A is correct.

Step-by-step explanation:

A watering can dispenses water at the rate = 0.3 gallon per minute

The original volume of water in the can = 7 gallons.

Which set of ordered pairs shows the volume of water in the can in gallons (y), as a function of time in minutes (x), from the first minute after the can starts dispensing water?

First making the function:

The the volume of water in the can in gallons is represented by y and  time in minutes is represented by x. Initially the volume is 7 gallons, after than water dispense at rate of 0.3 gallon per minute so, the function will be:

y=7-0.3(x)

Now, putting values to find ordered pairs

So, when time is 1 minute i.e x = 1

y=7-0.3(1)

y=7-0.3

y=6.7

So, when x=1, y=6.7 the ordered pair is: (1,6.7)

when time is 2 minutes i.e x = 2

y=7-0.3(2)

y=7-0.6

y=6.4

So, when x=2, y=6.4 the ordered pair is: (2,6.4)

when time is 3 minutes i.e x = 3

y=7-0.3(3)

y=7-0.9

y=6.1

So, when x=3, y=6.1 the ordered pair is: (3,6.1)

So, the correct ordered pairs are:

{(1, 6.7), (2, 6.4), (3, 6.1)}

Option A is correct.

1. Sheena and her friends want to form a team to play recreational soccer. They want a combination of males and females for the soccer team. They want to have no more than 7 players on their team.
Part A: Write an inequality to represent the situation. Part B: Graph the inequality and shade the area where the possible solutions would
lie. Part C: What is the difference between the ordered pairs that fall on the line and
the ones that fall in the unshaded area?
Part D: Determine whether these combinations of males, m, and females, f, can be
present.

Answers

thx hdhdndnndjdfjfjfh

i don't how to do this problem 2(x−2)−4x−5= 29

Answers

Answer:

= − 1 9

Step-by-step explanation:

1 point
In which of the graphs is f(x) NOT a function? Select all that



WHICH OPTION????

Answers

Answer:

Everything except Option 4 and option 3 because in option 4 and option 3, the y value does not repeat.

Step-by-step explanation:

Tareq pays $22.10 for 2.6 pounds of salmon. What is the price per pound of the salmon?

Answers

Answer: $8.50/pound

Step-by-step explanation:

Price per pound --> take the total price and divide it by the number of pounds

$22.10 / 2.6 pounds = $8.50/pound

Answer:

$8.50

Step-by-step explanation:

take 22.10 divide it by 2.6 and you will get your answer.

Hope this helps

would somebody be nice enough to help me?

Answers

Answer:

25$ each

Step-by-step explanation:

Answer:$23.98

Step-by-step explanation:

Write the quadratic equation in standard form: 2x^2+3x+7=x

Answers

2x²+3x+7=x

2x²+3x-x+7=0

2x²+2x+7=0

will select brainliest if ur answer is correct

Answers

Answer:

B (I think)

Step-by-step explanation:

A function can't have two X values that are the same (If I remember correctly) and the second table is the only one that doesn't have duplicated X values

Answer:

the correct answer is b

Step-by-step explanation:

Rebecca buys a shirt for $38.
She finds out the shirt is 25% off
and there is 8% sales tax. If
Rebecca has $40, how much change
will she receive?

Answers

Answer:

$8.46

Step-by-step explanation:

This is assuming that the sales tax is applied on the pre discounted item.

MDOSMSIENEIDIENDJDJCJX

PLEASE HELPP!!!




The dimensions of triangle B are twice the dimensions of triangle A. The area of triangle A is 28 cm2.


What is the area of triangle B?

A.

112 cm2

B.

18 cm2

C.

12 cm2

D.

27 cm2

Answers

Answer:

Area of triangle B is 112 cm²

Option A is correct option.

Step-by-step explanation:

The dimensions of triangle B are twice the dimensions of triangle A.

Area of triangle A = 28 cm²

We need to find area of triangle B

We know that if base = b and height = h for triangle A

The area of triangle A will be: [tex]Area_A=\frac{1}{2}\times b \times h[/tex]

The dimensions for triangle B will be:

[tex]h_B = 2 h_A\\b_B = 2 b_A[/tex]

Putting in formula we get:

[tex]Area_B=\frac{1}{2}\times b\times h \\Area_B=\frac{1}{2}\times (2b)\times 2(h)\\Area_B=4( \frac{1}{2}\times b\times h)\\Area_B=4(Area_A)[/tex]

SO, we get [tex]Area_B=4(Area_A)\\[/tex]

We have Area_A = 28 cm²

Area of triangle B Area _B is:

[tex]Area_B=4(28)\\Area_B=112\:cm^2[/tex]

So, Area of triangle B is 112 cm²

Option A is correct option.

Maria is trying to estimate y70. She uses this table of values:
Square 8.028.12 8.22 8.32 8.42
8.52
Value
64.0 65.6 67.2 68.9 70.6
72.3
Square 8.628.728.82
8.92 9.02
Value
74.0
75.7 77.4 79.281.0
What should she do next to find y70 to the nearest hundredth?

Answers

Answer:

The answer is A. She should find the squares of numbers between 8.3 and 8.4.

Step-by-step explanation:

I took the quiz

You are going to make cookies for a party. The recipe requires 3 cups of flour, 2 cups of chocolate chips and other ingredients. I also need to write an equivalent ratio that shows how much you need to double the original recipe, can someone help?

Answers

Answer:

Ratio of flour to chocolate = 6 : 4

= 3 : 2

Step-by-step explanation:

Original recipe

Flour = 3 cups

Chocolate = 2 cups

Ratio of flour to chocolate = 3 : 2

To double the original recipe

Flour = 3 cups × 2

Chocolate = 2 cups × 2

Flour = 6 cups

Chocolate = 4 cups

Ratio of flour to chocolate = 6 : 4

= 3 : 2

line passes through points (5, 8) and (10, 5). Line b is parallel to line a. what is the slope of line b?? ​

Answers

Answer:

-3/5

Step-by-step explanation:

Let's go from the point (5, 8) to the point (10, 5).  We can see immediately that x (the 'run') increases by 5 and y (the 'rise') decreases by 3.  Thus, the slope of the line connecting these two points is m = rise/run = -3/5.

Both of these lines have the slope -3/5, given that they are parallel lines.

A new string is chosen and knotted with all the other strings to create a second row. This process is repeated until there are enough rows to make a bracelet to fit around your friend's wrist. Are the number of knots proportional to the number of rows? Explain your reasoning.

Answers

Answer:

Yes, the number of knots is proportional to the number of rows.

Step-by-step explanation:

The number of knots is proportional to the number of rows, because whenever there is a new row then it implies that there is new knot.

Meaning, as the number of rows increases, the number or knots increases. This is a proportional relationship.

how to do this question plz answer my question ​

Answers

I gotchuuuu

Ok so angle ABC we’re gonna call it X

Angle BCD is 2X

The trick is the sum of angles of a pentagon is 540 degrees.

90 + 115 + 125 + 2X + X = 540
3X = 540-330
X = 70

SoOoOoOoOooooo

Angle BCD is 140 degrees !!

what is the surface area of this rectangular rectangular prism (pic attached)​

Answers

290 m2 you just have to add all of them

write as a single fraction in its simplest form 2x -1 / 3 - 2/x + 1

Answers

Answer:

(2x^2 + x-7)/3x+ 3

Step-by-step explanation:

Here, we want to write the following as a single fraction;

2x-1/3 - 2/x + 1

That will be;

(2x-1)(x + 1) -2(3)/3(x+ 1)

= 2x^2+ 2x-x-1-6/3(x + 1)

= (2x^2+x-7)/3(x+1)

= (2x^2 + x-7)/3x+ 3

How much interest is earned in two years in a investment of 2,000 and the interest rate is 3%

Answers

Answer: $1,140

Step-by-step explanation:

2000 x .03 = 60

60 x 24 months = $1,140

How do I solve this problem to find ACD

Answers

a triangle equals 180 so you do....

90+45+x=180
135+x=180
-135 -135
x= 45

angle C is 45 degrees

then theres a linear equation for angle C, so you do...

45+x=180
-45 -45

x= 135

angle ACD= 135 degrees

Answer:

x=135

Step-by-step explanation:

135 !!!!!lollllll

15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:

Answers

Answer

the answer would be

D(5,-2).

Answer:

D(-6, 1)

Step-by-step explanation:

To determine the solution we can start by calculating the slope of AB;

A(-1, 4), B(2, -5)

m = -5 - 4 / 2 - (-1) = -9 / 3  = -3

Then CD, if to be perpendicular, should have the 'negative reciprocal' of the slope of AB. In other words it should have a slope of 1/3. We are given point C as (3, 4) so let's take each of the given options for point D, and find the slope using the two points. If the slope is 1/3rd then that  is the correct option.

Now I already know the answer, so instead of going through all the options I will just check the slope with the correct answer choice. You will find the slope to be 1/3rd;

C(3, 4), D(-6, 1)

m = 1 - 4/- 6 - 3  = -3/-9 = 1/3rd

Correct, as you can see

So your solution is option c

What is the value of s ?
Please help
No guessing

Answers

Answer:

s = 17

Step-by-step explanation:

use Pythagorean theorem a² + b² = c²

where a = 8

           b = 15

           c = s (which is unknown)

plugin values into the formula:

a² + b² = c²

8² + 15² = s²

s = √(64 + 225)

s = √289

s = 17

Some animals on farms eat hay to get energy. A cow can eat 24 pounds of hay each day. Write and evaluate an expression to find how many pounds a group of 22 cows can eat in two weeks.

Answers

Answer:

7392 pounds

Step-by-step explanation:

22x24x14

multiplication my friend

Lin’s job pays $8.25 an hour plus $10 of transportation allowance each week. She has to work at least 5 hours a week to keep the job, and can earn up to $175 per week (including the allowance).

Answers

Answer:

x ≥ 5, 8.25x + 10 = 175, and x = 20 hours.

Step-by-step explanation:

Let Lin works x hours per week.

Now given that Lin’s job pays $8.25 an hour plus $10 of transportation allowance each week.

And she has to work at least 5 hours a week to $175 per week.

So, the inequality that can be written from the above condition is x ≥ 5 .......(1)

And the equation that can be written that

8.25x + 10 = 175 ....... (2)

So now we can write x = 20 hours

Hope this was helpful :)

3) Write an equation of a
line that has a slope of -3
and goes throughh
the
point (-4, 6)

Answers

m = -3

point = (-4,6)

You need to put this in point slope form.

y - 6 = - 3( x + 4 )

distribute

y - 6 = -3x - 12

add 6 to 12

y = -3x - 6

answer : y=-3x-6

A right triangle is ____ a scalene triangle.
Always, sometimes, or never

Answers

Answer: Sometimes

Step-by-step explanation:

This is a very tricky question. We know that in an isosceles triangle, two sides are the same. Because of this, we know that the right angle is always 90 degrees, and the other sides would be 45 degrees each because all triangles add up to 180 degrees. A right triangle could also be scalene, meaning none of the sides are the same, for example a scalene triangle could have sides of 44, 46, and 90 degrees. Rest assured, a right triangle will never be equalateral. Hope this helps :) Merry Christmas

Question : WHICH OF THE LINES IS PARALLEL ? HOW DO YOU KNOW ? ​

Answers

Answer:

B and R

I think that is the name of the lines. If not the the first two lines!!!!

What is the probability of tossing two coins and having them both land on heads?

50%

33.3%

75%

25%​

Answers

Answer:

25%

Step-by-step explanation:

Since there are two coins, it's 50%, and since there are two sides to choose from, that would mean 25%. There's a 25% chance either will lie on heads, tails, or both heads or both tails.

Answer:

25%

Step-by-step explanation: because one coin landing on heads is 50%, but since there are two coins you cut 50% in half

29. Solve the equation below.
30. Sol
5x + 1 = -49
CAN YOU PLEASE HELP ME

Answers

the answer is x = -10

Jose buys a bike for $185.00. He used a coupon that saved him 20%, how much did Jose pay for the bike?

Answers

Answer:

he paid $37 is the answer for the question

9514 1404 393

Answer:

  $148

Step-by-step explanation:

The coupon saved ...

  0.20 × $185 = $37.00

When that amount is subtracted from the $185 price, the amount is ...

  $185 -37 = $148

Jose pays $148.

_____

Comment on the wording

It seems the question answers itself in the first sentence. Jose bought the bike for $185. If that is what he bought it for, that is what he paid.

We assume the intended wording is something like, "Jose bought a bike with a marked price of $185."

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I didn't want to say "alone" again, but without it the thing seemed self-evident.The manager looked at me in some alarm. He felt that I had an awful secret to reveal.Come in here," he said, and led the way to a private room. He turned the key in the lock."We are safe from interruption here," he said; "sit down."We both sat down and looked at each other. I found no voice to speak."You are one of Pinkerton's men, I presume," he said.He had gathered from my mysterious manner that I was a detective. I knew what he was thinking, and it made me worse."No, not from Pinkerton's," I said, seeming to imply that I came from a rival agency. "To tell the truth," I went on, as if I had been prompted to lie about it, "I am not a detective at all. I have come to open an account. 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