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Semenov [28]
4 years ago
12

The process of manipulating one or more independent variables and measuring their effect on one or more dependent variables whil

e controlling for the extraneous variables is called an experiment. a. True b. False
Mathematics
2 answers:
Lesechka [4]4 years ago
8 0

Answer:

Dude the answer is B on edge.......Good luck

Step-by-step explanation:

frutty [35]4 years ago
3 0

Answer: Ok, let's think our dependent variable like the position of a car with velocity of 50km/h, and our independent variable the time.

so, you can choose any time you want, and for each time, the car will be in a different position, so the position is a variable dependent of the time.

let's suppose you don't know the velocity of the car.

first you see the position at a time t₁ and the position is r₁.

then you see the position at time t₂, and the result is r₂.

here you changed the independent variable and observed how the dependent variable changed. And in this case, with the 4 numbers you observed you can obtain the velocity of the car.

So yes, you can call it an experiment.

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SOMEONE PLEASE ANSWER AND I WILL GIVE BRAINLIEST :))
UNO [17]
Ok, so we know it costs $1.10 to make a pin, so the cost of making all 1000 pins must have been:
1.10 \times 1000 = 1100
We know that 35% of the pins, hence 350 pins, were given to charity (we assume this means donated for free), and so the company sold 650 pins.

60% of these we sold at $3 each;
0.60 \times 650 = 390
So 390 pins sold at $3 each comes to
390 \times 3 = 1170
So the company has already made $1170.

The other 40% of the 650 remaining pins (260 pins) were sold at $5 for 2. We assume from the question that they were only sold in pairs and were all sold, so we can essentially figure out that 130 pairs were sold at $5 each;
130 \times 5 = 650
So the company has sold the pins for $650 + $1170 = $1820

This means that the company has made
$1820 - $1100 = $720 as profit

So the percentage profit earned (profit/cost times 100%) would be
\frac{720}{1000}  \times 100 = 65.4545....
Which to one decimal place is 65.5% profit.

Hope this helped.



6 0
3 years ago
Read 2 more answers
Which expression represents the phrase "twice the difference of a number and 5"?
KatRina [158]

The expression that represents the phrase "twice the difference of a number and 5" is 2(x - 5).

<h3>What is the expression that represents the phrase?</h3>

The difference of a number and 5 is given by:

x - 5.

As we don't know the number, hence we call it x.

Twice that is:

2(x - 5).

Hence the expression that represents the phrase "twice the difference of a number and 5" is 2(x - 5).

A similar problem, in which the expression that represents a phrase is found, is given at brainly.com/question/2164351

#SPJ1

5 0
1 year ago
Pls help;)))))))))))))))(
rewona [7]

Answer:

Option 2)

Step-by-step explanation:

In a function, any number can be an x-coordinate only once.

Option 1) The 2 appears twice as x.

Option 2) All x-coordinates are different.

Option 3) The 2 appears twice as an x-coordinate.

Option 4) The 3 appears twice as an x-coordinate.

Answer: Option 2)

4 0
4 years ago
Please help on this one?
olganol [36]

Answer:

B. g(x)

Step-by-step explanation:

g(x) is a function of odd degree, so its minimum value is -∞, which is far less than the minimum value of -2 that f(x) has.

_____

Any even-degree term (with a positive coefficient) will have a minimum value of zero, hence the minimum value of f(x) is the constant added to the 4th degree term.

3 0
3 years ago
Take away 9 from 4 times y
Gala2k [10]
4y-9 is the answer.
3 0
3 years ago
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