A biologist wonders if the life span of bats will be affected by two new food sources from invasive species moving into an area. To conduct the experiment, the biologist needs three treatment groups: a group where the diet will not include invasive species (control), a group where the diet will include one invasive species (treatment group 1), and another group where the diet will include the other invasive species (treatment group 2). The biologist chooses the first cloud-free night and catches the first 18 bats that fly out of a cave, placing them into three equal groups of six bats. To decide the treatment for each group, the biologist places three slips of paper labeled control, treatment group 1, and treatment group 2 in a hat and randomly selects 2 slips of paper. The first piece of paper gives the treatment for the first group, the second piece of paper gives the treatment for the second group, and the remaining treatment is given to the third group.

Which component is missing from the biologist’s process?

The biologist did not use proper labeling on the pieces of paper.
The biologist did not use the appropriate number of treatment groups.
The biologist did not randomly assign the individual bats to the treatment groups.
The biologist did not randomly choose the weather on the night for bat capture.

Answers

Answer 1

Answer:

The biologist did not use proper labeling on the pieces of paper.

Hit Brainliest if this was helpful :)


Related Questions


Vika made $35,500 last year. If her income is increased by 10.5%, what is her adjusted income,
Ai? (show equation).

Answers

Answer:

  $39,227.50

Step-by-step explanation:

Vika's income will be ...

  $35,500 + 10.5%×35,500 = $35,500(1 +0.105) = $39,227.50

Vika's adjusted income is $39,227.50.

Find the length of the third side. If necessary, round to the nearest tenth.

Answers

Answer:

4.5

Step-by-step explanation:

To find the hypotenuse of a right triangle, we use Pythagorean's Theorem which states that [tex]a^{2}+b^{2} =c^{2}[/tex]. Plugging in the values of the two legs given, we get [tex]2^{2} +4^{2} =c^{2} =20[/tex]. We can take the square root of each side and get that [tex]c=\sqrt{20} =4.5[/tex].

Answer:

Try 4.5 or 5

Step-by-step explanation:

I measured it up and I estimated 4.5 at most

levi is a salesperson who sells computers at an electronics store he makes a base pay of $60 each day and then is paid a $5 commission for every computer sale he makes make a table of values and then write an equation for p in terms of x representing Levi's total pay on a day on which he sells x computers​

Answers

Answer:

equation : P(x) = 5x+60

Table :

If x (levi sells this many computers)

then y (levi makes this much money)

x : 0 ; 1 ; 2 ; 3 ; 4 ; 5 so on...

y : 60 ; 65 ; 70 ; 75 ; 80 ; 85 so on...

Step-by-step explanation:

This equation can be modeled by P(x) = 5x+60

P= levi's total pay

x = number of computers sold

This equation can be input into a graphing calculator to find a table of the corresponding x and y values for this equation. To solve without using a calculator, plug in a certain value for x in the equation and solve for y to get its corresponding value.

the set $s = \$ contains the first $50$ positive integers. after the multiples of 2 and the multiples of 3 are removed, how many integers remain in the set $s$?

Answers

Clearly, |S| = 50.

Count the multiples of 2 between 1 and 50:

⌊50/2⌋ = ⌊25⌋ = 25

(where ⌊x⌋ denotes the "floor of x", or the largest integer that is smaller than or equal to x; in other words, round down to the nearest integer)

Count the multiples of 3 between 1 and 50:

⌊50/3⌋ ≈ ⌊16.667⌋ = 16

Since LCM(2, 3) = 6, the sets of multiples of 2 and multiples of 3 have some overlap. Count the multiples of 6 between 1 and 50:

⌊50/6⌋ ≈ ⌊8.333⌋ = 8

Then by the inclusion/exclusion principle, we remove from S

25 + 16 - 8 = 33

elements, so that the new set S contains 50 - 33 = 17 elements.

what are 4 quarts in one gallon but in a
fraction form

Answers

Should be 1/4 to my knowledge.

Answer:

4 Quarts =  1 Gallon

Step-by-step explanation:

1 is an integer and not a fraction. However, it can be expressed as a fraction in rational form as 1/1. So a possible answer is 1/1 gallon. I don't know for sure though its my best guess.

NO LINKS!!!

Help please ;-;

And please answer all 1, 2, 3, 4 questions!
Choose the inequality that describes the following


____ 1. The set of numbers {‐3, ‐2, ‐1, 0, 1, ...}

A. x > ‐4

B. x < ‐4

C. x ≥ ‐4

D. x ≤ ‐4


____ 2. The set of numbers {9, 8, 7, …}

A. x > 9

B. x < 9

C. x ≥ 9

D. x ≤ 9


____ 3. The set of numbers {0, -2, -4, -6, -8, ...}

A. x > 0

B. x < 0

C. x ≥ 0

D. x ≤ 0


____ 4. The set of numbers {-6, -4, -2, 0, 2, 4, 6, ...}

A. x > ‐6

B. x < ‐6

C. x ≥ ‐6

D. x ≤ ‐6

Answers

1. A

2. D

3. D

4. C

(IF YOU NEED A EXPLANATION, JUST ASK!)

what is 110/12- 28/12 as an improper fraction

Answers

Answer:

82/12

Step-by-step explanation:

Terry is $120 in debt. He needs to make
$140.20 in order to pay for his college books this
semester. If he wants to pay off his debt and pay
for his college books, how much money does he need to earn?

Answers

$260.20

(120+140.20)

Solve for x. −4.5(x+3.21)= −33.21 HELP PLZ

Answers

Answer:

4.17

Step-by-step explanation:

Answer:

lol

Step-by-step explanation:

Determine the intercepts of the line.

Answers

Answer:

y intercept= 12

x intercept = 4

Step-by-step explanation:

It is just one interception because the equation is linear

Ashley and Christopher want to camp on the other side of a lake at point B. They are both going to kayak to the campsite from their homes. Ashley lives at point A and is kayaking from point A to point B. Christopher lives at point C and is kayaking from point C to point B. Based on the picture below, Ashley will kayak ___ miles more than Christopher. 0.5 mi, 1.5 mi, 2.5 mi, 3.0 mi. Please help!

Answers

Applying the midsegment theorem, the distant Ashley will kayak more than Christopher is: 0.5 mi

Recall:

The midsegment of a triangle joins two sides of a triangle at their midpoint.The third side is the base of the triangle.Triangles have three midsegments.Based on the midsegment theorem, the length of the midsegment = ½(third side).

The picture given shows a triangle with two midsegments: AB and BC

AB = the distance Ashley will kayak.

BC = the distance Christopher will kayak.

XY = 5 mi (base)

XZ = 6 mi (base)

Applying the midsegment theorem, find AB and BC.

AB = ½(XZ)

Substitute

AB = ½(6)

AB = 3 mi

BC = ½(XY)

Substitute

BC = ½(5)

BC = 2.5 mi

Thus, the distance Ashley will kayak more than Christopher = AB - BC

= 3 mi - 2.5 = 0.5 mi.

Therefore, applying the midsegment theorem, the distant Ashley will kayak more than Christopher is: 0.5 mi

Learn more about the midsegment theorem on:

https://brainly.com/question/12234706

2) (x8y2)(x3y11)
a) xlly13
b) x24y22
c) xSy
d) 1

Answers

It’s a, x11y13 djdhdh

Answer:

the answer would be A.)

Step-by-step explanation:

Find the perimeter and area of the figure below.

Answers

Answer:

A: 312  P: 80

Step-by-step explanation:

Answer:

A=120, P=60

Step-by-step explanation:

how to evaluate in math?
HELP PLEASE

Answers

You need to figure out the value of the expression when the variable is replaced by a given number. Hope this helps, if you need a better explanation let me know!

Given m | n, find the value of x and y.

Answers

X = 23

Y = 129

Hope this is helpful!

Answer:

i think x = 23, y = 129

Step-by-step explanation:

5x+14+3x-18 = 180

8x-4 = 180

8x = 184

x = 23

3x-18+y = 180

3(23)-18+y = 180

69-18+y = 180

51+y = 180

y = 129

You want to save at least $180 to buy a new phone. You already have $65 in your account, and you can save $23 a week from your after-school job. Which inequality can be used to find the minimum number of weeks you need to save before you can purchase the phone?

Answers

Answer: 180≤23x+65

Step-by-step explanation:

p = phone

w = weeks

65 + 23w ≥ 180

If you need it to be solved, the minimum number of weeks goes as shown:

65 + 23w ≥ 180

-65              -65

23w ≥ 115

/23       /23

w ≥ 5

So, the minimum number of weeks that is required is 5.

Find the value 3x-7 if 4x+12=24

Answers

I'm pretty sure that's what you meant

Solve for x.
32-8
=
-6
Enter your answer in the box
X=

Answers

Answer:

X = -2

Step-by-step explanation:

3x - 8/2 = x - 6

3x - 8 = x - 6 × 2

3x - 8 = x - 12

3x - x = -12 + 8

2x = -4

X = -4/2

X = -2

Hopes that it will help u...

Answer = -2

1. Multiply both sides of the equation by 2
3x - 8 = 2x - 12

2. Move the terms over and collect like terms
3x - 2x = -12 + 8
X = -12 + 8

X = -4


If we express $3x^2 - 6x - 2$ in the form $a(x - h)^2 + k$, then what is $a + h + k$?

Answers

If we express  [tex]3x^2-6x-2[/tex] in the form  [tex]a(x-h)^2+k[/tex], then a + h + k = -1

The given quadratic expression is:

[tex]3x^2-6x-2[/tex]

To express [tex]3x^2-6x-2[/tex] in the form [tex]a(x-h)^2+k[/tex], follow the steps below

Rewrite [tex]3x^2-6x-2[/tex] as  [tex]3x^2-6x+3-5[/tex]

Factorize common terms

[tex]3(x^2-2x+1)-5[/tex]

This can be further simplified as:

[tex]3(x-1)^2-5[/tex]

Therefore, the vertex form of the equation  [tex]3x^2-6x-2[/tex] is [tex]3(x-1)^2-5[/tex]

Compare [tex]3(x-1)^2-5[/tex] with  [tex]a(x-h)^2+k[/tex]

a = 3, h = 1, k = -5

a  +  h  +  k  =  3  +  1 - 5

a  +  h  +  k  =  -1

Therefore if we express  [tex]3x^2-6x-2[/tex] in the form  [tex]a(x-h)^2+k[/tex], then a + h + k = -1

Learn more on vertex form of a quadratic equation here: https://brainly.com/question/17987697

Solve: 2sec(x) 5 = 9 Which equation is equivalent to the given equation?.

Answers

Answer

9=5 equivalent

Step-by-step explanation:

Answer:

A. cos(x) = 1/2

Step-by-step explanation:

2sec(x) = 9-5 = 4

sec(x) = 4/2 = 2

1/cos(x) = 2

cos(x) = 1/2

Which figure has reflection symmetry?

Answers

The bottom left figure

Answer:

the first option

Step-by-step explanation:

if you were to fold it in half it would be the same shape without anything poking out of the sides. one side reflects the other side

Cameron ran 5 miles less than Kyle last week. Cameron ran 9 miles. Which equation will tell you how many miles Kyle ran?
A)
+ 5-9
B)
X-5 - 9
o
X+ 5-49
D)
X-5=-9

Answers

D. it is d because I said so >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    >:(    

is the pair of complementary angles are in the ratio4:11 find them​

Answers

Answer:

Step-by-step explanation:

y=6x-17 -12x+2y = -34 ??

Answers

Carry learning!

Stay safe!

Study hard!

M(ax+by+c)=0 make y subject

Answers

[tex]M(ax+by +c)=0\\\\\implies ax+by +c =0\\\\\implies by = -ax-c\\\\\implies y = \dfrac{-ax -c}{b}\\\\\implies y = - \left(\dfrac{ax+c}b \right)[/tex]

What is the slope of the line that passes through the points (10, 2) and (19, 14)?
Write your answer in simplest form.

Answers

Answer:

The slope of this line is 4/3.

Step-by-step explanation:

(x1, y1) = (10, 2)

(x2, y2) = (19, 14)

First, find the slope using the slope formula:

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

All this is doing is finding the distance between the y-coordinates and dividing it by the distance between the x-coordinates. I marked these two as points 1 and 2 above, so you can plug in all 4 values and solve:

[tex]m=\frac{14-2}{19-10}\\\\m=\frac{12}{9}\\\\m=\frac{4}{3}[/tex]

The slope of this line is 4/3.

help me plss i need helppp

Answers

I think it’s A I could be wrong tho

the square root of 700 times square root of 525 in simplest form

Answers

Answer: 350 [tex]\sqrt{3[/tex]

Step-by-step explanation:

700^0.5 = 10 [tex]\sqrt{7\\[/tex]

525^0.5 = 5 [tex]\sqrt{21[/tex]

10[tex]\sqrt{7[/tex] x 5[tex]\sqrt{21[/tex] = 50 x 7 x [tex]\sqrt{3[/tex] = 350[tex]\sqrt{3\\[/tex]

Julie counts the cars passing her house, and
finds that 2 of every 5 cars are foreign. If she
counts for an hour, and 60 cars pass, how
many
of them are likely to be domestic?
a. 12 cars
b. 24 cars
C.30 cars
d. 36 cars

Answers

Bbbbbbbbbbbbbbbbbbbb

Ready lesson 8 independent practice

Answers

Answer:

wdym???

Step-by-step explanation:

Other Questions
why does hydrogen fluoride have a high boiling point find HCF of 27 and 45 Explain the 6 levels of organization. !!!!!!!!!HELP I need asnwer ASAP 2. Ramona spent 20 minutes on homework on Monday, 20 minutes on Tuesday,40 minutes on Wednesday, 30 minutes on Thursday, and 0 minutes on Friday.What is the mean number of minutes she spent on homework? Answer each question with a complete sentence in Spanish using the imperfect tense If the measure of wyz =27 what is the measure of zyx Find the area and perimeter of a square whose side length is2x+3 13. Solve to find the vertex if :3x2 19x - 5 All sugars are considered:a carba fatjust sugarsa lipid America history What do you think are the differences between the phrase "given us" and "entrusted to us"? Can anyone explain capillary action in the circulatory system in simple terms? Persuasive Essay Why should you be allowed to watch a christmas movie before the break? help me on this question. would be nice if you could also graph it as well Vocabulary in Context: Big Henryk was holding Kuba upside down by his ankles while Ferdi walloped Kubas rump with a big bone, one of many that were lying around. Based on the context clues, what does wallop most likely mean? A.Tickle B.Strike C.Slice D.ScrapeNEED HELP RIGHT NOWWW!!! a) Complete the table of values for y = 6 - 2x012345OT10-4y86cob) Draw the graph of y = 6 - 2xon the grid.42.c) Solve 6 - 2x = 3 F r e e points for people that is low on points :) 100 POINTS!!!!! give me 3 exciting things about cyber security and three things scary about cyber security in which layer of the sun does light form ? (20 POINTS) Why should citations be included in a paper or report? to make the location of original work obvious to ensure that a paper is accurate to give others credit for their work to show that research was done correctly