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fiasKO [112]
3 years ago
13

True or false Controlled experiments can be randomized or nonrandomized

Mathematics
1 answer:
DIA [1.3K]3 years ago
3 0

Answer:

True

Step-by-step explanation:

Using a random chance procedure to assign subjects to treatment or control reduces bias. d. In a blind experiment, the subjects do not know whether they are in the treatment group or control group.

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A population of butterflies grows in such a way that each generation is simply 1.5 times the previous generation. There were 350
kap26 [50]

Answer:

378.5 or just 378

Step-by-step explanation:

This is a linear model with x representing the number of generations that's gone by, y is the number of butterflies after x number of generations has gone by, and the 350 represents the number of butterflies initially (before any time has gone by.  When x = 0, y = 350 so that's the y-intercept of our equation.)

The form for a linear equation is y = mx + b, where m is the rate of change and b is the y-intercept, the initial amount when x = 0.

Our rate of change is 1.5 and the initial amount of butterflies is 350, so filling in the equation we get a model of y = 1.5x + 350.

If we want y when x = 19, plug 19 in for x and solve for y:

y = 1.5(19) + 350

y = 378.5

Since we can't have .5 of a butterfly we will round down to 378

7 0
3 years ago
(I NEED THIS ASAP) Find the slope of the line. Use points shown, (-1,-5) and(2,1)
patriot [66]

Answer:

2/1 or 2

Step-by-step explanation:

You go up 6 and over 3 simplify 6/3 to 2/1=2

3 0
2 years ago
What is the solution to the equation below? Enter the answer in the format p=#, keep your answer as a fraction if necessary. -2/
Scorpion4ik [409]

Let's solve your equation step-by-step.

-2/3p+ 1/6= 7/10

Answer:

p= -4/5

6 0
3 years ago
Your doctor told you to eat 25 grams of fiber each day. You had 4 grams of fiber for breakfast. What percent of the 25 grams of
AlekseyPX
To answer the question, divide the fiber intake during breakfast by the total fiber intake prescribed by the doctor and multiply with 100%. With the given above, 

                                              (4 / 25) x 100% = 16%

Thus the fiber intake during breakfast constitutes 16% of the total fiber intake. 
6 0
2 years ago
Read 2 more answers
Can someone help me with this?? If you can't see the picture don't bother to answer.
Georgia [21]
J is correct. the scale is balanced, so x = 1. there are 9 1’s on the right, and 6 1’s on the left. there are 3 more blocks, and they would have to each be 1.
7 0
3 years ago
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