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3 years ago

5

Describe two different cross section shapes that can be formed by slicing a cylinder. For each shape describe how the cross sect

ion was created.

1 answer:

artcher [175]3 years ago

5 0

either a rectangle or circle will be made. If you cut it horizontially you will get a circle. Vertically and you will have a rectangle

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A palm tree is supported by two guy wires as shown in the diagram below. Which trig expression can be used to find the height on

Volgvan

Answer:

D. $tan(30^\circ+45^\circ)$ is the correct answer.

Step-by-step explanation:

The given situation can be represented as a figure attached in answer area.

B is the base of tree.

C is the base of wires.

A and D are the end of 2 wires supporting the tree.

$\angle DCB =45^\circ\\\angle ACB =75^\circ\\$

Here, we need to find the Height of the tree which is represented the by side AB.

and we are given that bases of wires and tree base are at a distance 4 ft.

i.e. side BC = 4 ft

If we look at the $\triangle ABC$ , we are given the base BC and the $\angle ACB$ , and the perpendicular is to be find out.

We can use trigonometric identity:

$tan\theta =\dfrac{Perpendicular}{Base}$

$tan 75^\circ = \dfrac{AB}{BC}\\\bold {tan (45+30)^\circ }= \dfrac{AB}{4}\\\Rightarrow AB = \bold {tan (45+30)^\circ } \times 4 = 14.93\ ft$

Hence, D. $tan(30^\circ+45^\circ)$ is the correct answer.

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3 years ago

If f(x)= x-3 over x and g(x)= 5x-4 what is the domain of (f•g)(x)

marusya05 [52]

Answer:

I attached the work to your problem below.

I hope it helps.

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3 years ago

A new patio will be an irregular hexagon. The patio will have two long parallel sides and an area of 360 square feet. The area o

irina [24]

The problem ask to calculate the corresponding distance on the new patio where as the the patio will have two long parallel side and an area of 360 square feet and the area of the similar patio is 250 square feet and its long parallel sides are 12.5 feet apart. To calculate this the ratio of the distance of the two polygon is P:Q so it means that the are is also P^2:Q^2 so the ratio of the area is 36:25 so the the distance of the new patio is 18 feet

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3 years ago

Read 2 more answers

Erika's first and second quarter grades are shown below. What grade does she need in

Anarel [89]

Answer:

She would need an 83 in math if she wants to have an overall average equivalent to the first quarter . Tell me if im wrong

Step-by-step explanation:

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3 years ago

Pleaseeeeeeee friends

IgorC [24]

B(x)=x2+3
I believe so

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3 years ago