All categories

2 years ago

The difference between an observational study and an experiment is that

Mathematics

1 answer:

lorasvet [3.4K]2 years ago

7 0

Answer:

I think it's the last one! In an experiment, one group is studied over a short period of time---

You might be interested in

What is the solution to ln (x2 - 16) = 0?

bogdanovich [222]

ANSWER

$x = \pm \sqrt{17}$
EXPLANATION

The given equation is

$ln( {x}^{2} - 16) = 0$

Take antilogarithm of both sides to base e.

${e}^{ ln( {x}^{2} - 16) } = {e}^{0}$

This will simplify to

${x}^{2} - 16 = 1$

Group like terms to obtain,

${x}^{2} = 1 + 16$

${x}^{2} = 17$

Take square root of both sides to get,

$x = \pm \sqrt{17}$

6 0

2 years ago

Read 2 more answers

When r=42, what is the value of 3r-3^3

MrRa [10]

126-27 = 99, hope this helps

8 0

2 years ago

What fraction and decimal, in the hundredths is equivalent to 7/100?

aliya0001 [1]

Answer:

0.07 and

Step-by-step explanation:

convert the fraction into a decimal by dividing the numerator by the denominator.

7 0

2 years ago

(x,-4) and (2,8): m = -3 find the missing value. it is in slope formula.

Snezhnost [94]

Answer:

The value of x = 6

Step-by-step explanation:

Given

The point (x,-4)

The point (2,8)

To determine

m = -3

Using the formula

Slope = m = [y₂ - y₁] / [x₂ - x₁]

here:

(x₁, y₁) = (x, -4)

(x₂, y₂) = (2, 8)

m = -3

so substitute (x₁, y₁) = (x, -4) , (x₂, y₂) = (2, 8) and m = -3

m = [y₂ - y₁] / [x₂ - x₁]

-3 = [8 - (-4)] / [2 - x]

-3 = [12] / [2-x]

-3 (2-x) = 12

-6+3x = 12

3x = 12+6

3x = 18

divide both sides by 3

3x/3 = 18/3

x = 6

Therefore, the value of x = 6

7 0

3 years ago

Start to finish must use all boxes, cant go diagonally

aleksandr82 [10.1K]

start at the top and go down one then go to the right and the vice verse

______________________________

l______________________________l

end____________________________l

8 0

2 years ago