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2 years ago

Which is a line segment?

Mathematics

2 answers:

PSYCHO15rus [73]2 years ago

7 0

Answer:

Step-by-step explanation:

Step 1

Mark a point (A) hat will be one endpoint of the new line segment.

Step 2

Set the compasses' point on the point (B) of the line segment to be copied.

Step 3

Adjust the compasses' width to the point (C). The compasses' width is now equal to the length of the line segment(BC).

Step 4

Without changing the compasses' width, place the compasses' point on the the point (A) on the line you drew in step 1.

Step 5

Without changing the compasses' width, Draw an arc roughly where the other endpoint will be.

Step 6

Pick a point (D) on the arc that will be the other endpoint of the new line segment.

Step 7

Draw a line from (A) to (D)

Step 8

Done. The line segment (AD)

is equal in length (congruent to) the line segment (BC).

astraxan [27]2 years ago

6 0

C a line segment has a start and an end point signifies by dots. it is also a straight line

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Two 1.60cm×1.60cm plates that form a parallel-plate capacitor are charged to ± 0.711nC . What is the potential difference across

lina2011 [118]

The surface charge density:
S(igma) = Q / A
A = 1.6 * 10^(-2) * 1.6 * 10^(-2) = 2.56 * 10^(-4) m²
The electric field: E = S / E(psilon) o
E = 0.711 * 10^^(-9) / ( 2.56 * 10 ^(-4) * 8.85 * 10 ^(-12) ) =
= 0.3138 * 10 ^6 = 3.138 * 10^5 V/m
a ) Δ V = E d
Δ V = 3.138 * 10^5 V/m* 1.2 * 10^(-3) m = 376.56 V
b ) When d = 2.40 mm:
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3 years ago

Read 2 more answers

What means the same as 65?

Alina [70]

Answer:6 × 5 and 5 + 5 + 5 + 5 + 5 6 + 6 + 6 + 6 + 6

Step-by-step explanation:

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2 years ago

Suppose that two people standing 2 miles apart both see the burst from a fireworks display. After a period of time, the first p

Usimov [2.4K]

Answer: approximately 5148 feet directly north of point A

This is equivalent to 0.975 miles

==============================================================

Explanation:

Check out figure 1 (attached image below) to see how the drawing is set up.

Points A and B are separated by 2 miles, or 10560 feet. Use the conversion factor 1 mile = 5280 feet.

Because sound travels at roughly 1100 feet per second (assuming all of the conditions are right), this means that after x seconds, the sound wave has traveled a total distance of 1100x feet. This is the distance from A to C. Point C is the firework location.

The distance from B to C is 1100(x+6) feet because it takes 6 more seconds for the soundwave to travel from C to B, compared from C to A.

Note that triangle ABC is a right triangle. The 90 degree angle is at point A.

We can use the pythagorean theorem to solve for x

See figure 2 in the attached images to see the steps on solving for x. The numbers get quite big, though in the end x is fairly small. We end up with x = 4.68, which is approximate due to the 1100 figure being approximate.

This means the sound wave takes about 4.68 seconds to go from point C to point A.

With this x value, we can compute the expression 1100x to get

1100*x = 1100*4.68 = 5,148 feet

To convert this to miles, divide by 5280

(5148)/(5280) = 0.975

Therefore,

5148 feet = 0.975 miles

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3 years ago

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Dafna11 [192]

X + 13 = -4
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2 years ago

The gable end of the roof shown is divided in half by a vertical brace. Find the distance h (in ft) from an eave to the peak. 41

nlexa [21]

Answer:

h = 9 ft

Step-by-step explanation:

Assume the diagram is like the one below.

∆ABD is a right triangle.

We can use Pythagoras' Theorem to find the height h.

$\begin{array}{rcl}h^{2} + 40^{2} & = & 41^{2}\\h^{2} + 1600 & = & 1681\\h^{2} & = & 1681 - 1600\\& = &81\\h& = & \sqrt{81}\\&=& \mathbf{9}\end{array}\\\text{The height of the gable is $\large \boxed{\textbf{9 ft}}$}$

8 0

3 years ago