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Wittaler [7]
3 years ago
5

Find the equation of the straight lines passing through the origin that are tangent to a circle with the center (2,1) and a radi

us of 2.
Mathematics
2 answers:
Inessa05 [86]3 years ago
5 0

Answer:

2?

Step-by-step explanation:

Oxana [17]3 years ago
4 0

Answer:

Equation y=(-3/4)⋅x

Step-by-step explanation:

The points of tangency are (0, 1) and (4/5, -3/5)

The equations of the lines from the origin (0, 0) through these points is

x = 0 and y = -3/4x, respectively.

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How many solutions in the equation below 145=10x-8x
iren2701 [21]

Answer:

One

Step-by-step explanation:

145=2x

72.5=x that's one solution.

4 0
3 years ago
URGENT! PLEASE HELP.
Harrizon [31]

The distance BC from Tower 2 to the plane will be 14,065.5 ft and the height of the plane from the ground will be 5,720.9 ft.

<h3>What is a right-angle triangle?</h3>

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.

A plane is located at C on the diagram.

There are two towers located at A and B.

The distance between the towers is 7600 feet and angles of elevation are given.

Then in the right-angle triangle ΔADC, we have

\rm \tan 16 = \dfrac{H}{7600 + X}\\\\\\H = 0.2867(7600 +X)\\\\\\H = 0.2756\ X + 2179.2649 ...1

Then in the right-angle triangle ΔBDC, we have

\rm \tan24 = \dfrac{H}{ X}\\\\\\H = 0.4452\ X ...2

From equations 1 and 2, we have

0.4452X = 0.2756 X + 2179.2649

0.1696X = 2179.2649

            X = 12849.439 ≅ 12,849.4 ft

Then the distance BC from Tower 2 to the plane will be

\rm BC = \dfrac{12849.4}{\cos 24}\\\\\\BC = 14065.5 \ ft

Then the height of the plane from the ground will be

\rm H = 12849.4 \times  \tan 24 \\\\\\H = 5720.9 \ ft

The figure is shown below.

More about the right-angle triangle link is given below.

brainly.com/question/3770177

#SPJ1

3 0
2 years ago
Please help me&lt;3<br> i will give brainliest to the right answer
marysya [2.9K]

Answer:

26.5

Step-by-step explanation:

Because the sales is $530 and the commission rate is 5%, the commission would be 5% of the sales, which would be $26.5

3 0
3 years ago
8. The product of 5, and 3 more than twice a number,<br> is 85. What is the number?
Zolol [24]

Answer:

Step-by-step explanation:

5(2x+3) = 85

10x + 15 = 85

x = (85 - 15)/10

x = 7

6 0
3 years ago
Determine the level of measurement of the variable. an officer's rank in the military Group of answer choices
ElenaW [278]

Answer:

Ordinal

Step-by-step explanation:

Level of measurement used in statistics summarizes what statistical analysis that is possible. There exist three types of level of measurement. The nominal, ordinal and Interval/Ratio level of measurement. Here, our primary focus will be the Ordinal level of measurement.

Ordinal level of measurement indicates the position in a sequence. In the military sector, the officer's rank is said to be Ordinal. This implies that the ordinal level of measurement categorizes variables according to hierarchy or ranks with a meaningful order. Still, the intervals and differences between the variables may not be equal.

3 0
3 years ago
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