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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.

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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I need some help on this question. Segment LM is the midsegment of trapezoid ABCD. AB=48, and DC=88. What is LM? I am not sure h

agasfer [191]

AB=48, DC=88

48+88=136
136÷2=68

Answer: LM=68
Remember that the length of the mid segment in a trapezoid is half the sum of the base lengths.

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4 years ago

The ratio of the Areas of the bases of these cones is 9 to 4.

Lapatulllka [165]

Answer:

Step-by-step explanation:

This is something you learn in Geometry. Gotta love Geometry and all of its hundreds of rules for triangles and circles and all that good stuff!!

The rule for similar figures is

ratio of perimeter (one-to-one)-->area (square the one-to-one)-->volume (cube the one-to-one).

We are given area. You CANNOT CUBE THE AREA MEASURES TO GET TO THE VOLUME!! You have to find the one-to-one first and then go forward from there.

If the area is the one-to-one squared, then

$\frac{\sqrt{9} }{\sqrt{4} }=\frac{3}{2}$

The one-to-one is 3:2. To get to the volume now, cube those one-to-one values:

$\frac{3^3}{2^3}=\frac{27}{8}$

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3 years ago

I know this is stupid but im lazy. <br> What four numbers equal 50.

Dennis_Churaev [7]

12.5 x 4... hope this helped!

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3 years ago

If BC = 6 and AD = 5, find DC.

Yanka [14]

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Step-by-step explanation: Because it is going 1 subtract everytime

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34kurt

Answer:

She used cans of 2 and 1/2white paint.

Step-by-step explanation:

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