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vagabundo [1.1K]
2 years ago
15

Which type of study best describes the following research most likely to be done? A teacher wants to know how fast all her stude

nts for a particular period can complete a multiplication quiz to check their mental math abilities. So, all of her students are tested on a computer and the time of each and every student is recorded.
A Experimental Study

B Observational Study
C Census

D Sampling
Mathematics
1 answer:
Yakvenalex [24]2 years ago
6 0

Census

_____________________________________

<em>*100% CORRECT ANSWERS</em>

Question 1

Which type of study best describes the following research most likely to be done?

A researcher is testing out a brand new type of safety suit for fires and is trying to test the maximum threshold of the suit.

Simulation Study  

Question 2

Which type of study best describes the following research most likely to be done?

A test is being conducted on a new medicine that is supposed to heal cuts faster. One group is given the actual medicine in a gel type of ointment to apply to the cuts. The second group is given just regular Vaseline that looks like the medicine but has not benefit to put on the cut. The results are then compared.  

Experimental Study  

Question 3

Which type of study best describes the following research most likely to be done?

A researcher is wanting to research the after effects of plant growth after a nuclear reactor meltdown and decides to study plants within a 50 mile radius of the  power plant that had a catastrophic melt down in 2011.  

Observational Study  

Question 4

Which type of study best describes the following research most likely to be done?

A study is being conducted by an insurance actuary and he wants to determine how often American teen drivers that are on the honor roll get into wrecks.  

Sampling  

Question 5

Which type of study best describes the following research most likely to be done?

A teacher wants to know how fast all her students for a particular period can complete a multiplication quiz to check their mental math abilities. So, all of her students are tested on a computer and the time of each and every student is recorded.  

Census

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O Horizontal translation of 11 units
kozerog [31]

Answer:

The answer is B

Step-by-step explanation:

I got B because it just looks like its flipped over the y axis. Its also even. Im sorry if you didnt get that but im not the best explainer at these types of problems lol. But its actually b trust me

pls mark brainliest because i didnt waste your time lol

3 0
3 years ago
Just need help finding X and Y
Lapatulllka [165]

Answer:

<h2>x = 8 and y= 12</h2>

Step-by-step explanation:

For x use the Pythagorean theorem:

x^2+6^2=10^2

x^2+36=100              <em>subtract 36 from both sides</em>

x^2=64\to x=\sqrt{64}\\\\x=8

We know: x + y = 20. Substitute:

8+y=20              <em>subtract 8 from both sides</em>

y=12

5 0
3 years ago
The spherical bottle has a conical shaped lid with a diameter of 5cm and a height of 4.5cm. Given this information, calculate th
Harlamova29_29 [7]

Answer: Volume of lid = 29.44 cubic cm and surface area = 40.41 cubic cm.

Step-by-step explanation:

Given: For  lid of the spherical shaped bottle,

Diameter = 5 cm

Height = 4.5 cm

Radius = Half of diameter = 2.5 cm

Volume of cone = \dfrac13\pi r^2 h

Volume of lid  =\dfrac13(3.14)(2.5)^2(4.5)=29.4375\approx29.44\text{ cm}^3

Surface area of cone = \pi r\sqrt{h^2+r^2}  [as lide has no base we don't include area of base.]

Surface area of lid = (3.14)(2.5)\sqrt{(2.5)^2+(4.5)^2}= 7.85\sqrt{26.5}\approx40.41\text{ cm}^3

Hence, volume of lid = 29.44 cubic cm and surface area = 40.41 cubic cm.

7 0
3 years ago
members of a soccer team raised $741.15 to go to a tournament. They rented a bus for $250 and budgeted $25.85 per player for mea
blsea [12.9K]

9514 1404 393

Answer:

  19 players

Step-by-step explanation:

The total being spent is ...

  bus cost + (per player cost) × (number of players) = total raised

  250 + 25.85p = 741.15

  25.85p = 491.15

  p = 491.15/25.85 = 19

The team could bring 19 players to the tournament.

6 0
2 years ago
Matt Kaminsky bought a Volvo that is 33∕4 times as expensive as the car his parents bought. If his parents paid $8,000 for their
Mashutka [201]

33/4 is the same as 8 1/4

so that means that matt bought the Volvo for 8 1/4 times as much as the car his parents bought.

therefore... 8,000 times 8.25 = 66,000

8 0
2 years ago
Read 2 more answers
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