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3 years ago

The following is an example of a biased sample of students from a middle school.

Mathematics

2 answers:

Archy [21]3 years ago

8 0

Answer:

true

Step-by-step explanation:

LenKa [72]3 years ago

4 0

Answer:

hey i think the answer is true

Step-by-step explanation:

You might be interested in

Coal petroleum and natural gas all contain energy true or false

sp2606 [1]

Answer:

Yes

Step-by-step explanation:

The average efficiencies of power generation are 35% for coal, 45% for natural gas and 38% for oil-fired power generation. ... the highest efficiencies observed are 42% for coal, 52% for natural gas and 45% for oil-fired power generation.

7 0

3 years ago

Using the following graph, determine the slope of the line,

GarryVolchara [31]

Answer:

-2

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Convert the point-slope form to slope-intercept form y– 4 = -3(x + 2)

artcher [175]

Answer:

y = -3x - 2.

Step-by-step explanation:

y - 4 = -3(x + 2)

y - 4 = -3x - 6

y = -3x - 6 + 4

y = -3x - 2.

4 0

4 years ago

A phone company needs to know how tall a cell tower is, so it decides to use a 2 m pole and shadows cast by the sun, as shown in

Wewaii [24]

(cell tower)/((45 +3) m) = (2 m)/(3 m)
(cell tower) = (48 m)(2/3) = 32 m

B. 32 m . . . . . is the appropriate selection

6 0

3 years ago

Read 2 more answers

For the cost function, find the marginal cost at the given production level x. State the units of measurement. (All costs are in

baherus [9]

Answer:

The marginal cost at the given production level is $49.9.

Step-by-step explanation:

The marginal cost function is expressed as the first derivative of the total cost function with respect to quantity (x).

We have that the cost function is given by

$C(x) = 15000 + 50x + \frac{1000}{x}$

So, we need the derivative and then we’ll need to compute the value x = 100 of the derivative.

$C'(x)=\frac{d}{dx}\left(15000+50x+\frac{1000}{x}\right)\\\\\mathrm{Apply\:the\:Sum/Difference\:Rule}:\quad \left(f\pm g\right)'=f\:'\pm g'\\\\C'(x)=\frac{d}{dx}\left(15000\right)+\frac{d}{dx}\left(50x\right)+\frac{d}{dx}\left(\frac{1000}{x}\right)\\\\C'(x)=0+50-\frac{1000}{x^2}\\\\C'(x)=50-\frac{1000}{x^2}$

When x = 100, the marginal cost is

$C'(100)=-\frac{1000}{100^2}+50\\\\C'(100)=\frac{499}{10}=49.9$

6 0

3 years ago