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Tems11 [23]
4 years ago
12

Consider the net of a rectangular box where each unit on the coordinate plane represents four feet. If a sheet of plywood measur

es 4 ft x 8 ft, how many sheets of plywood will a carpenter need to build the box?
A) 3
B) 4
C) 5
D) 6

Mathematics
2 answers:
Irina-Kira [14]4 years ago
5 0
The area of a sheet of plywood is:
 A1 = (4) * (8)
 A1 = 32 feet ^ 2
 The area of the box is given by:
 A2 = (16) * (8) + (2) * (16)
 A2 = 160 feet ^ 2
 The number of sheets of plywood is:
 N = A2 / A1
 N = 160/32
 N = 5
 Answer:
 
a carpenter will need 5 sheets of plywood to build the box.
 
C) 5
BaLLatris [955]4 years ago
5 0

Answer:

C

Step-by-step explanation:

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Find the slope of the line that contains the following points. e(5,7), f(3,1)
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Look up online "equation calculator" and it should be the first one to appear, "Symbolab" supper easy way to help you with problems!
3 0
3 years ago
what are the minimum first quartile median third quartile and the maximum of the data set? 9,20,4,18,4,18,20,9
den301095 [7]
<u>Answers</u>
1. Minimum = 4
2. First quartile = 6.5
3. Median = 13.5
4. Third quartile = 19
5. Maximum = 20

<u>Explanation</u>
To calculate the measure of central tendency, you first arrange the set of the data in ascending order.  
The set of data given will be;
4, 4, 9, 9, 18, 18, 20, 20.

Part 1:
The minimum value of the data is 4.

Part 2:
The first quatile is the median of the lower half which is comprised by:
4, 4, 9, 9

1st quartile = (4+9)÷2
                  = 13÷2
                  = 6.5

Part 3:
Median of the data is;

Median = (9+18)÷2
              =27÷2
            = 13.5

Part 4:
3rd quartile is the median of the upper half which comprises of; 
18, 18, 20, 20.

3rd quartile = (18+20)÷2
                  = 48÷2
                   = 19

Part 5
The maximum of the set of data is 20.
7 0
3 years ago
PLS HELP ASAP!!!!!!!!!!!
Neko [114]

Answer: x= 12

Step-by-step explanation:

3x+6 = 42

or, 3x = 36

so, x = 12

4 0
2 years ago
Read 2 more answers
Nick wanted to determine the length of one blade of a windmill. He stood at a point on the ground 440 feet from the windmill's b
mafiozo [28]

Answer:There are two right triangles. You need to find the opposite side (the height) of each of them. The difference between the two is the height of the blade, x.

You know the adjacent, 440, and you are looking for the opposite, so you need to use tan for both.

tan (30) = y / 440

y = 440 * tan (30) = 254.034...

tan (38.8) = z / 440

y = 440 * tan (38.8) = 353.769.--

353.8 - 254.0 = 99.8 = 100 feet.

Step-by-step explanation:

7 0
2 years ago
Can someone please help me Factor 4x^2 - 81
Vsevolod [243]

Answer:

(2x-9)(2x+9)

Step-by-step explanation:

This is a difference of squares because it can be written as (2x)^2-9^2

The formula for factoring a difference of squares is a^2-b^2=(a-b)(a+b)

So replace a with 2x and b with 9 giving us

4x^2-81=(2x-9)(2x+9)

3 0
4 years ago
Read 2 more answers
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