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For an activity in class, students used pieces of string to measure roads on a map. They used a map scale to determine the

Elina [12.6K]

Answer:

The real-life distance to the nearest mile between Tampa and Orlando is 88 miles

Step-by-step explanation:

String distance between Fort Myers and Miami = 7 inches

A real life distance between Fort Myers and Miami = 154 miles

So, 7 inches = 154 miles

$1 inch = \frac{154}{7}=22 miles$

Scale : 1 inch = 22 miles

String distance between Tampa and Orlando = 4 inches

Using scale

The real-life distance to the nearest mile between Tampa and Orlando = $4 \times 22 = 88 miles$

Hence The real-life distance to the nearest mile between Tampa and Orlando is 88 miles

6 0

3 years ago

Which expression can be used to find the surface area of the following square pyramid

andreyandreev [35.5K]

Answer:

$36+15+15+15+15$

Step-by-step explanation:

For the surface area we need to add up all the areas in the pyramid:

area of the base

area of the triangle sides (there are 4 triangles)

Area of the base:

the base is a square, and the area of a square is given by:

$a_{base}=l^2$

where $l$ is the length of the side: $l=6$ , thus:

$a_{base}=(6)^2\\a_{base}=36$

Area of the triangles:

one triangle has the area given by the formula:

$a_{triangle}=\frac{b*h}{2}$

where $b$ is the base of the triangle: $b=6$

and $h$ is the height of the triangle: $h=5$ , thus we have the following:

$a_{triangle}=\frac{6*5}{2} \\\\a_{triangle}=\frac{30}{2} \\\\a_{triangle}=15$

the expression that represents the surface area of the pyramid is:

$a_{base}+area_{triangle}+area_{triangle}+area_{triangle}+area_{triangle}$

substituting our values:

$36+15+15+15+15$

which is option B

7 0

4 years ago

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what is the difference between the mean and the median of the following distribution? {1,1,1,2,2,2,2,3,3,4,4,4,4,5,5,6,7,7,8,8,9

iren2701 [21]

The given distribution =

1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 6, 7, 7, 8, 8, 9

To find mean, we have to add the given numbers and divide it by the total number of terms given.

Here 21 total numbers given.

Mean = (1+1+1+2+2+2+2+3+3+4+4+4+4+5+5+6+7+7+8+8+9) /21

= (88)/21 = 4.19 (Approximate upto two decimal place)

Median is the middle value of the distribution.

1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 6, 7, 7, 8, 8, 9

There are 21 numbers given. So middle value is the number in the 11th position.

The number in the 11th position is 4.

So, the median of the distribution = 4

We have to find the difference between mean and median here. To find the difference we have to subtract mean and median.

Therefore, the required difference = 4.19 - 4 = 0.19

0.19 is the required answer here.

So, option b is correct.

3 0

4 years ago

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A sporting goods store uses quadratic equations to monitor the daily cost and profit for various items it sells. The store’s dai

seropon [69]

<span>C.If the soccer balls are too expensive fewer will be sold reducing profit. is the answer </span>

6 0

4 years ago

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I don't get this one

lisov135 [29]

4y=13-1
4y=12
y=12/4
y=3 That shoud be your answer

7 0

4 years ago

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