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dolphi86 [110]
4 years ago
8

To determine the size of a sample, the standard deviation of the population must be estimated by either taking a plot surveying

or by approximating it based on knowledge of the population.
a) true
b) false
Mathematics
1 answer:
levacccp [35]4 years ago
6 0

Answer:

a) true

Step-by-step explanation:

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Write the equation of a line that is parallel to {y=0.6x+3}y=0.6x+3y, equals, 0, point, 6, x, plus, 3 and that passes through th
Dominik [7]

y = 0.6x - 3.2  
The general form of the desired equation is 
y = mx + b
 where
 m = slope of the line
 b = y intercept of the line 
 If two lines are parallel, their slopes will be the same, Since the slope of the
given line "y = 0.6x +3" is 0.6, that will also be the slope of the desired line.
So our equation becomes:
 y = 0.6x + b 
 Now we can substitute the x and y value of the desired point we want the new line to pass through and find b. So
 y = 0.6x + b
 -5 = 0.6(-3) + b
 -5 = -1.8 + b
 -3.2 = b 
 So the desired equation is now 
y = 0.6x - 3.2
3 0
3 years ago
Read the excerpt from The Boy Who Harnessed the Wind by William Kamkwamba.
garik1379 [7]

Answer:

For this question I believe this is A) He is inventive and reasoursful.

Step-by-step explanation:

I think this is the answer because he made so many things like used bicycle tires to help him wire the wires in the text givin. Have a nice day and stay safe!!!

4 0
4 years ago
What is the LCD for ? <br> 11/20 and 31/45
tatiyna

The LCD of 11/20 and 31/45 is 180

20 40 60 80 100 120 140 160 180

45 90 135 180

5 0
3 years ago
Help (10 points ) ;)
joja [24]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
NEED QUICKLY <br> Write the equation of the line shown below?
grandymaker [24]

y = x + 2

Step-by-step explanation:

General formula for any straight line:

y = mx + c

Where

m = gradient

c = constant

m = y2 - y1/x2 - x1

m = (4 - ( -2))/(2 - ( -4))

m = 6/6

m = 1

y = (1)x + c

y = x + c

Substitute any coordinate from the line of the equation.

4 = 2 + c

c = 2

substitute m and c into general formula

y = mx + c

y = x + 2

8 0
3 years ago
Read 2 more answers
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