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Harman [31]
3 years ago
14

a bookstore ownwr wants to know which department to expand. manager A surveys every 3rd teenager that comes in the store. manage

r B surveys every customer on monday evening. manager C surveys 25% of the customers chosen at random from the store's mauling lost. which manager's method is the least biased? explain?​
Mathematics
1 answer:
Artyom0805 [142]3 years ago
8 0

Answer:

Manager C.

Step-by-step explanation:

This is because they are asking people at random on a random day instead of---

teenagers who typically don't like to read what adults do

or

people who come on Monday night because a teenager has to go to school Mondays and typically have homework so they cant get out

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cesar left the college traveling 12 mph. Then, 4 hours later, Gabriel left traveling the same direction at 24 mph. How long will
Sloan [31]

Answer:

Step-by-step explanation:

Given that cesar left the college traveling 12 mph. Then, 4 hours later, Gabriel left traveling the same direction at 24 mph.

Before Gabriel started Cesar would have travelled for 4 hours

So distance travelled by Cesar in 4 hours =4(12) =48 miles

Thus Cesar is ahead of Gabriel by 48 miles

Difference of speed =(24-12) =12 mph

So to catch Cesar time required = 48/difference in speed

= 4 hours

It will take 4 hours.

8 0
3 years ago
The bases of the trapezoid are 6 and 10. The height is 4. Find the area.
kari74 [83]
<h2>Answer:</h2>

b. \ \boxed{32 \sq. \ units}

<h2>Step-by-step explanation:</h2>

A trapezoid is a quadrilateral where at least one pair of opposite sides are parallel. In a trapezoid, the both parallel sides are known as the bases of the trapezoid. So we have two bases, namely, b_{1}\,and\,b_{2}. Also, the height H of the trapezoid is the length between these two bases that's perpendicular to both sides. So the area of a trapezoid in terms of of b_{1},b_{2}\:and\:H is:

A=\frac{(b_{1}\text{+}b_{2})h}{2}

Since:

b_{1}=6, \ b_{2}=10, \ and \ H=4

The area is:

A=\frac{(6\text{+}10)4}{2}=\boxed{32 \sq. \ units}

6 0
3 years ago
Show how to get answer 2 for $24.99 or 5 for $58.99
bija089 [108]
You normally use division what u do is u did if 24.99 by 2
24.99 \div 2 = 12.495
8 0
3 years ago
In the xy-plane, the equations x + 2 = 10 y and 3 +6 = x y c represent the same line for some constant c. What is the value of c
aalyn [17]

Answer:

C=30

Step-by-step explanation:

Supposing that we have the lines

x+2=10y

and

3x+6=Yc.

Note that dividing by 3 the second line can be rewritten as

x + 2= Y c/3.  

Remember that a line is written as ax+b=dY, in our case, both lines have a=1 and b=2. Therefore, in orther that the two lines are equal, we need that 10=c/3, hence c=30.

3 0
3 years ago
Please help I’m taking the test and it’s due soon, all you have to do is fill in the blank, it’s really easy if you know geo
Afina-wow [57]

Answer:

130, exterior, 8, 93, 87, interior

Step-by-step explanation:

5 0
3 years ago
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