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drek231 [11]
3 years ago
7

of building code regulation which requires that the slope of the riser to the tread of a staircase be 60% with an absolute devia

tion of 10%. Find the maximum and minimum slopes of the staircase.
Mathematics
1 answer:
musickatia [10]3 years ago
6 0
10% either side of 60% (about 31°) makes the minimum slope 54% (about 28°) and the maximum slope 66% (about 33°).
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A recipe for making 12 cupcakes
Igoryamba

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16 cups of flour

Step-by-step explanation:

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2 years ago
Please help if possible. Thank you!
Shtirlitz [24]

Answer:15 pi

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XPY is 3 quarters of the slope, which equals to 0.75*20*pi=15pi

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2 years ago
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Find the area of the shaded region. Round your answer to the nearest hundredth.
vampirchik [111]

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Step-by-step explanation:

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2 years ago
If you are working with less than, or greater than. If there is a negative do you switch the sign? For example 9t-4>32
kirill [66]

Answer:

Rule:  If working with an inequality and you either mult. or div. by a negative number, you must reverse the direction of the inequality symbol.

Step-by-step explanation:

Your job here is to simplify 9t-4>32, in which the variable (t) is already positive.  Here you do NOT switch signs or reverse the direction of the inequality symbol.  Adding 4 to both sides, we get 9t > 36, or t > 4.

If, however, you had  -9t-4>32 to work with, the situation would be different because t in this inequality is negative.  Adding 4 to both sides results in:

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t < -4.

Rule:  If working with an inequality and you either mult. or div. by a negative number, you must reverse the direction of the inequality symbol.


8 0
3 years ago
Find the value of x.
Sholpan [36]

Answer:

x = √21.

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Triangles ADB and BCD are similar.

So their corresponding sides are in the same ratio:

x / 7 = 3 / x

x^2 = 21

x = √21.

3 0
3 years ago
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