In blueprints an architects firm drew everything 1/24 of the actual size the windows will actually measure 4feet by 6 feet and t
he doors measure 12 feet by 8 feet what are the dimensions of the windows and doors
2 answers:
Window size in the image
length = 1/6 feet
width = 1/4 feet
Door size in the picture
length = 1/2 feet
width = 1/3 feet
<h3>Further explanation </h3>Scale images are images that represent the real situation. The picture made is given a certain comparison so that it describes the real situation
This particular comparison is called scale
Examples of this scale drawing include maps and floor plans
On a map usually a scale is included
So the scale is a comparison between the distance on the map with the actual distance
an architects uses a scale of 1:24 in the picture
actual size of the windows = 4 x 6 feet
actual size of the doors: 12 x 8 feet
then:
- 1. The window size in the image is:
length = scale x actual size
length = 1/24 x 4
length = 1/6
width = 1/24 x 6
width = 1/4
- 2. The size of the door in the picture is:
length = scale x actual size
length = 1/24 x 12
length = 1/2
width = 1/24 x 8
width = 1/3
<h3>Learn more </h3>
a scale on a map
keywords: scale, maps, blueprint, doors, windows
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<h2>Steps</h2>
So the 45-45-90 triangle is considered to be a "special triangle" and has a rule with it. If the legs are x, then the hypotenuse is x√2. Since we know that the hypotenuse is 18, this means we can set up our equation as such:
From here we can solve for x. Firstly, divide both sides by √2.
Next, we want to simplify this expression and to do that we first have to rationalize the denominator. With the right side, multiply the numerator and denominator by √2:
Next, divide:
<u>In short, the length of one leg of the triangle is 9√2 cm.</u>
Answer:
we cannot conclude hat the proportion of wives married less than two years who planned to have children is significantly higher than the proportion of wives married five years
Step-by-step explanation:
Given that in a study on the fertility of married women conducted by Martin O’Connell and Carolyn C. Rogers for the Census Bureau in 1979, two groups of childless wives aged 25 to 29 were selected at random, and each was asked if she eventually planned to have a child. One group was selected from among wives married less than two years and the other from among wives married five years.
Let X be the group married less than 2 years and Y less than 5 years
X Y Total
Sample size 300 300 600
Favouring 240 288 528
p 0.8 0.96 0.88
p difference = -0.16
Std error for difference =
Test statistic = p difference/std error=-6.03
p value <0.000001
Since p is less than alpha 0.05 we cannot conclude hat the proportion of wives married less than two years who planned to have children is significantly higher than the proportion of wives married five years