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slavikrds [6]
2 years ago
11

A new drug is being tested on mice. One dozen mice are given the new drug and tested, while another dozen mice are not given any

thing and tested. What kind of data collection is this?
Question 17 options:

Observational study


Simulation


Experiment


Census
Mathematics
1 answer:
lilavasa [31]2 years ago
8 0

i would have to say Census

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Pls I need answer it’s due today!!!!!!!!!
vesna_86 [32]

Step-by-step explanation:

in probability,or means addition.

14/28+19/28

1/2+19/28

you then find the LCM of the denominator.

14+19/28

33/28

you then divide 33 by 28.

6 0
2 years ago
The sum of three consecutive odd integers is-219. What is the first number in the set?
Alex73 [517]

Answer:

-75

Step-by-step explanation:

Let us consider the first  odd number to be 'x'.

Thus:

  1. 1st odd number: x
  2. 2nd odd number: x+2
  3. 3rd odd number: x+3

According to the question, the sum of these three consecutive ODD numbers should be equal to -219

So,

x + x + 2 + x + 4 = -219

3x + 6 = -219

3x = -225

x = -75

3 0
3 years ago
The mass of Saturn is 5.686 × 10^26 tonnes. The mass of Earth is 6.04 × 10²¹ tonnes. How many times heavier is Saturn than Earth
andrey2020 [161]
We simply divide the mass of Saturn with the mass of Earth.
5.686 x 10^26 / 6.04 x 10^21

The rule of significant figures when dividing numbers is that the least amount significant figures must be used in the quotient.

Therefore, Saturn is 9.41 x 10^4 times heavier than Earth.
8 0
3 years ago
What is 2197 divided by 20? Now, what is the answer in a mixed number?
Anna007 [38]
109. 85 the mixed number 109 85/100
5 0
2 years ago
Read 2 more answers
Simplify the polynomial (3a^2+4a+25) - (2a^2+4a-5)
nignag [31]

Answer:

The polynomial simplified would be a^2 + 30

I hope this helps you:))

P.S. Might I recommend a good online calculator for these types of problems. It's called Symbolab. I use it every day and it's a lifesaver. It shows the step-by-step and has a plethora of different actions like simplifying, inverse, and line.

6 0
3 years ago
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