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igor_vitrenko [27]
3 years ago
7

The function FX = 1/x is not an example of a rational function. A. True B. False

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
3 0

Answer:

false

Step-by-step explanation:

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(1 point) Some shrubs have the useful ability to resprout from their roots after their tops are destroyed. Fire is a particular
ziro4ka [17]

Answer:

The answer is "0.45 \pm 0.18204"

Step-by-step explanation:

For the +4 sample proportion= \frac{(7+2)}{(16+4)} =  \frac{9}{20} = 0.45

Sample percentage measurements estimated stdev

= \sqrt{\frac{[(0.45)(1-0.45)]}{[(16+4)]}}\\\\ = \sqrt{\frac{[(0.45)(0.55)]}{[(20)]}}\\\\ = \sqrt{\frac{0.2475}{20}}\\\\= \sqrt{0.012375}\\\\=0.111

Calculating the critical z for a=0.1, two-tailed = 1.64

Calculating the confidence interval:

= 0.45 \pm 0.111 \times 1.64 \\\\= 0.45 \pm 0.18204

4 0
3 years ago
Is it possible for 2 lines with negative slopes to be perpendicular? Why or why not?
Setler [38]

Answer:

No

Step-by-step explanation:

Perpendicular lines have negative reciprocal slopes, for example:

2/3 and -3/2

It is not possible for 2 lines to have negative slopes and be perpendicuar. This is because a slope must be negated to get the perpendicular slope.

8 0
3 years ago
Who knows how to do this
Ivan
Area by Heron's formula:
semiperimeter = (15 + 20 + 25)/2 = 60/2 = 30 cm

Area = \sqrt{30(30-15)(30-20)(30-25)}= \sqrt{30 \cdot5\cdot10\cdot15}= \\\\ {} \ \ \ \ \ \ =\sqrt{22500} =150 \ cm^2

The formula of the area of a triangle: Area = 1/2 * base * height
1/2 * 25 * height = 150
12.5 * height = 150
height = 150/12.5
height = 12 cm
3 0
3 years ago
A repair bill for your car is $553. The parts cost $265. The labor cost is $48 per hour. Write and solve an equation to find the
Lilit [14]

Answer:

6 hours

Step-by-step explanation:

Let the labor hours be x.

The bill comprises of parts cost plus labor cost. Labor cost is hours times the cost per hour. Then we have equation:

  • 265 + 48x = 553
  • 48x = 553 - 265
  • 48x = 288
  • x = 288/48
  • x= 6

So the answer is 6 hours.

4 0
3 years ago
89 times what equals 830
Len [333]
I hope this helps you




89.?=830


?=830/89


?=9.325
7 0
4 years ago
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