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allochka39001 [22]
3 years ago
10

A randomized controlled experiment is

Mathematics
1 answer:
Reil [10]3 years ago
4 0
I am not sure about this... but it’s a.
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An engineer studying fuel usage collected data on the speed a car traveled (in kilometers per hour) and how much fuel it used (i
Flura [38]

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c u m and p i s s

Step-by-step explanation:

lol get rekt

4 0
3 years ago
What is the value of x?
Mariulka [41]

Answer:  x = 7

`Step-by-step explanation:

Because the figure shows two triangles that are similar. we can write and solve an equation of ratios:

 9 cm       72 cm

----------- = -----------

3x - 20      56 cm

Cross-multiplying, we get (3x - 20)(72 cm) = (9 cm)(56 cm) = 504 cm²

Dividing both sides by 72 cm, we get:

3x - 20 = (504 cm²) / (72 cm) = 7

Then 3x - 20 = 7, and 3x = 27.  Then x must be 9.

4 0
4 years ago
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Each bottle of perfume contains 2.1 fluid ounces of perfume. The store sells 30 bottles. How many fluid ounces of perfume did th
arsen [322]

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63

Step-by-step explanation:

8 0
3 years ago
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1. The producer of the news station posted an article about the high school’s football championship ceremony on a new website. T
Alex

Answer:

1.

hours / views

1. / 125

2. / 250

3. / 375

4. / 500

5. / 625

2.

f(x)= 125 x views=125.hours

The slope of the function equals the visits of each hour.

3. (1;125) (2;250) (3;375) (4;500) (5;625)

4. "views as a function of hours"

5. in 12 hours the website will have f(12)=125 . 12 = 1500 views.

we can see in the plot that the line gets to that number for 8

4 0
3 years ago
Multiply. Express each answer as a decimal.<br><br> 12⋅15<br> 34⋅200<br> (0.2)⋅60<br> (0.75)⋅20
katovenus [111]

Answer:

  1. 12×15=180
  2. 34×200=6800
  3. (0.2)×60=12
  4. (0.75)×20=15
3 0
3 years ago
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