1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NikAS [45]
3 years ago
8

Amy is doing a science experiment on how a certain bacterium reacts to an antibiotic. She has 3 dishes of identical bacterium sa

mples with 14 bacteria in each dish. She gives an antibiotic to all of the bacteria in one dish. All of the treated bacteria died, and the bacteria in the other two dishes survived.
What type of sampling is demonstrated in the situation above?
negative sampling
convenience sampling
random sampling
census
Mathematics
1 answer:
Katarina [22]3 years ago
5 0

ANSWER EQUALS 567. I THINK


You might be interested in
Substitution<br> 1.y=-5x-19<br> y=-6x-24<br><br> 2.y=-6x-22<br> y=-3x-10
omeli [17]

Answer:

1. y=5 and x=-5

2. y=2 and x=-4

Step-by-step explanation:

1.y=-5x-19

y=-6x-24

since both equations are equal to y, they are also equal to eachother

-5x-19=-6x-24

addition P.O.E.

x-19=-24

addition P.O.E.

x=-5

substitute x into one equation

y=-5*-5-19

y=6

2. y=-6x-22

y=-3x-10

since both equations are equal to y, they are also equal to eachother

-6x-22=-3x-10

addition P.O.E.

-22=3x-10

addition P.O.E.

-12=3x

division P.O.E.

-4=x

substitute x into one equation

y=-3*-4-10

y=2

5 0
3 years ago
FIRST ANSWER GETS BRANLIEST!!
Mashcka [7]

Answer:

(0,0)

Step-by-step explanation:

Let's think about how the graph of this would look.

We know that y will be x^2, meaning that if x was 0, y would be 0.

If x was 1, y would be 1

If x was 2, y would be 4.

Now let's think about negative numbers.

If x was -1, y would be 1 (since -1^2 = 1

If x was -2, y would be 4 (since -2^2 = 4).

This means that our graph would turn at the point where x and y are equal (excluding 1,1)

This is 0,0.

So 0,0 is the turning point of this graph.

Hope this helped!

3 0
3 years ago
which of the following is the equation of a line parallel to the line y = -x + 1, passing through the point (4,1)
fomenos

Answer:

A. x + y = 5

Step-by-step explanation:

The slope of the equation is equal for parallel lines,

; Slope = (-1)

;Use the formula

(y - y(coordinate of the given point)) = slope × [(x - x(coordinate of the given point)]

; y - 1 = (-1)(x - 4)

; y - 1 = -x + 4...then move the variable (x) to the left hand side and then move (-1) to the right hand side

; x + y = 4 + 1

; Hence,

; x + y = 5

4 0
3 years ago
Solve x2 − 8x + 5 = 0 using the completing-the-square method. (2 points)
RoseWind [281]

Answer:

x = 4 +  \sqrt{11},  \:  \: x = 4 -  \sqrt{11}

Step-by-step explanation:

{x}^{2}  -8x + 5 = 0 \\  \\  {x}^{2}  - 8x +  {4}^{2}  =  - 5 +  {4}^{2}  \\  \\  {(x - 4)}^{2}  =  - 5 + 16 \\  \\  {(x - 4)}^{2}  = 11 \\  \\ x - 4 =   \pm \sqrt{11}  \\  \\ x = 4 \pm \sqrt{11}  \\  \\ x = 4 +  \sqrt{11}, \:  \: x = 4 -  \sqrt{11}

8 0
2 years ago
Mark reduce the size of a photo to a height of 4 inches. What is the new width if it was originally 16 inches tall and 8 inches
uranmaximum [27]

Answer:

Step-by-step explanation:

new height is ¼ of original height

new width = ¼×8 = 2 inches

4 0
3 years ago
Read 2 more answers
Other questions:
  • Can somebody help me with these questions?
    5·1 answer
  • ???? HELPPPPPPPPPPPPPPPPPP
    5·1 answer
  • What number is 20% of 125?
    5·2 answers
  • Help please!!!<br><br> which graph represents the function f(x)=4/x?
    7·1 answer
  • There are 21 groups of 3 in a room. How many people are there. I need an equation
    10·2 answers
  • A. 1189<br> B. 28<br> C. 784<br> D. 891<br> E. 1059
    6·2 answers
  • Does the equations y = 4x + 1 represent a proportional relationship?
    5·1 answer
  • Given the equation 12x – 6y = –36, identify the slope and y-intercept.
    9·1 answer
  • The following data represents the amount of snow snow that fell in a week.
    11·1 answer
  • You bought a game for 40$ at Gamestop. How much money will<br> you spend in tax if the tax is 8%?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!