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Alja [10]
3 years ago
8

4. What is the next step if the data from an investigation do not support the original

Mathematics
1 answer:
Anit [1.1K]3 years ago
5 0

Answer:

B: The hypothesis is revised and another experiment is conducted.

Step-by-step explanation:

If several different experiments all reveal that the hypothesis has not been confirmed, a revision of the hypothesis is in order. Perhaps it was the hypothesis all along that needed amendment.

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Tan x + sqrt(3) = - 2 tan x
Svet_ta [14]

9514 1404 393

Answer:

  nπ -π/6 . . . for any integer n

Step-by-step explanation:

  tan(x) +√3 = -2tan(x) . . . . . given

  3tan(x) = -√3 . . . . . . . . . . . add 2tan(x)-√3

  tan(x) = -√3/3 . . . . . . . . . . divide by 3

  x = arctan(-√3/3) = -π/6 . . . . use the inverse tangent function to find x

This is the value in the range (-π/2, π/2). The tangent function repeats with period π, so the set of values of x that will satisfy this equation is ...

  x = n·π -π/6 . . . . for any integer n

8 0
2 years ago
The equation of line l is -3y + 4x = 9 . Write the equation of a line that is parallel to line l and passes through the point (-
Elan Coil [88]

Answer: y = 3x/4 + 22

Step-by-step explanation:

The equation of line l is -3y + 4x = 9

-3y + 4x = 9

3y = 4x -9

y = (4x -9)/3= 4x/3 - 3

From the slope-intercept equation,

y = mx +c

Where m= slope

Comparing both equations, we have

m = 4/3

If the new line that parallel to line l, that means they have the same slope

So, slope if new line is 3/4.

Points =(-12, 6)

From y = mx + c

x = -12,y = 6

6= 4/3 × -12 + c

6 = -16 + c

c = 6 + 16 = 22

Therefore

The equation of the line that is parallel to line l and passes through the point (-12,6) ,

y = 3x/4 + 22

7 0
3 years ago
Use the guess and check method <br> 4(x+2)+2=14
Pani-rosa [81]

Answer:

1

Step-by-step explanation:

3 0
3 years ago
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The domain is the range of the x-axis. In this situation the x range from 0 to 11, so the domain is D.
5 0
2 years ago
summer used 2/5 of her ground beef to make burgers. if she used 3/4 pounds of beef, how much beef did she have at first?
Gekata [30.6K]

Answer:

8/15

Step-by-step explanation:

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3 years ago
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