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Vsevolod [243]
3 years ago
15

In a sample, which statement is TRUE about the age of the group surveyed? A) The age of the group surveyed should be lower than

that of the population. B) The age of the group surveyed should be greater than that of the population. C) The age of the group surveyed should be proportional to that of the population. D) The age of the group surveyed should not be proportional to that of the population.
Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0

Answer:

C

Step-by-step explanation:

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The data in the table represents a company’s profit based on the number of items produced
frutty [35]

Answer:

(A) y= -1.026x^2 + 1016.402x - 162075

Step-by-step explanation:

Here is the options to the question

Which equation best represents the data?

A) y= -1.026x^2 + 1016.402x - 162075

B) y= -1.036x^2 + 1024.771x - 163710

C) y= 298.214x - 66317.667

D) y= 196.2x – 18710

(A) y= -1.026x^2 + 1016.402x - 162075

The data above represents the company's profit based on number of items produced.

To get the equation which best represents the data, we have to substitute the value of x into the given equations  

By substituting x=100 in first equation, we have:

y = -1.02x² + 1016.402x – 162075

y = -1.026(100)² + 1016.402(100) – 162075

y = -70500

y = -70500

Option A satisfies.

Using the second equation  

When x = 100

y = -1.036x^2 + 1024.771x - 163710

y = -1.036(100)² + 1024.771(100) - 163710

y = -10360 + 102477.1 – 163710

y = -71592.9

Option B doesn’t satisfies  

We can also replace the various values of x in the equations to check whether or not they satisfy.

4 0
3 years ago
Evaluate 8r<br> rs when r<br> 6 and s = 5.
Ray Of Light [21]

Answer:

18

Step-by-step explanation:

I am assuming you meant 8r-rs, in this case:

Plug in r=6 and s=5:

8(6)-(6)(5)

8*6 = 48 and -6*5= -30

Thus,

48-30= 18

4 0
3 years ago
Read 2 more answers
Can someone please help me with this!
Gelneren [198K]

Answer:

Sue takes 3.3 hours to kayak 11 miles & marty takes 3.5 hours on her horse

Step-by-step explanation:

Sue's kayaking path is the hypotenuse of a right triangle.

so we use a squared + b squared = c squared

10.5^2+3.2^2=c^2

110.25+10.24=c^2

120.49=c^2

10.9768=c

and then because it said to round to the nearest tenth that would be 11.0 miles.

She's going at an average speed of 3.3 mph

that means it takes her about .3 hours to do 1 mile

so it would take her 3.3 hours to go 11 miles

marty is going at an average speed of 7 mph

so she takes 0.14 hours to go 1 mile

0.14 x 25 = 2.5

3 0
3 years ago
You want to help make snow cones at your school fair. Each paper cone has a radius of 4.5 centimeters. The height of one cone is
skad [1K]
Hello there.

You want to help make snow cones at your school fair. Each paper cone has a radius of 4.5 centimeters. The height of one cone is 8.3 centimeters. What is the volume of one cone? Use 3.14
176.01

3 0
3 years ago
What is the equation of the line that passes through the point (-3,6) and has a slope of -2
OverLord2011 [107]

Answer:

pls

Step-by-step explanation:

3 0
2 years ago
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