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Dafna11 [192]
2 years ago
10

I need help answering this question

Mathematics
2 answers:
blsea [12.9K]2 years ago
6 0

Answer:

I think D

Step-by-step explanation:

Because an experiment is defined as a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact. This example is testing to see if the mouthwash is effective.

Alecsey [184]2 years ago
3 0

Answer:

I'm pretty sure it's D, sorry if I'm wrong

Step-by-step explanation:

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Wrapping paper comes in 3 colors, on either a regular roll or an extra wide roll, and with or without a pattern. How many combin
VladimirAG [237]

Answer:

12 combinations

Step-by-step explanation:

The sample space is the set of all possible combinations. In this case, there are 3 possible colors, 2 possible widths and 2 possible patterns (with or without), The number of possible combinations is given by multiplying the number of options for each trait:

n=3*2*2\\n=12\ combinations

There are 12 possible combinations.

3 0
3 years ago
Which of the following describes the transformation of the graph y= x2 in graphing y=-x2.5?
Zepler [3.9K]

Answer:

reflect over the x-axis and shift down 5

Step-by-step explanation:

Assuming the transformed graph has equation.

y = -   {x}^{2}  - 5

and the parent function is

y =  {x}^{2}

Then the transformed function is obtained by reflecting the parent function in the x-axis and then shifting it down by 5 units.

The coy option is reflect over the x-axis and shift down 5 units.

4 0
3 years ago
A car repair will cost $100 for parts plus $50 per hour for labor. Enter the function y that represents the total cost in dollar
Andreas93 [3]

Answer: y = $50x + 100

  • $100 is the y-intercept
  • $50 is the slope

7 0
3 years ago
Find the product 2/5 * 5/6
Oduvanchick [21]

Answer:

1/3

Step-by-step explanation:

It's easier to do multiplications like this if you write the fractions as follows:

2      5

---- * ---- = 2/6 = 1/3 (answer)

5      6

7 0
3 years ago
Find the area of a regular octagon with an apothem length of 10 and a side length of 6.
Sauron [17]

Answer:

A = 240 units²

Step-by-step explanation:

the area (A) of a regular polygon is

A = \frac{1}{2} pa ( p is the perimeter and a the apothem )

here p = 8 × 6 = 48 ( an octagon has 8 sides ) and a = 10 , then

A = \frac{1}{2} × 48 × 10 = 24 × 10 = 240 units²

8 0
2 years ago
Read 2 more answers
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