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Alex
2 years ago
8

In isosceles triangle ABC, AC=BC=20, the measure of angle A=68, and CD is the altitude to side AB. What is CD to the nearest 10t

h
Mathematics
1 answer:
antiseptic1488 [7]2 years ago
3 0

Answer:

Step-by-step explanation:

Comment

The way the diagram looks when it is drawn is that you are going to need the sine function to solve for the side opposite which is CD.

Formula

Sin(A) = Sin(68 = opposite / hypotenuse     Substitute values.

Solution

sin(68) = altitude (side opposite) / 20       multiply both sides by 20

20*sin(68) = 20* altitude / 20                     substitute for sin(68)

20* 0.9272 = altitude

altitude = 18.5

Answer: 18.5 to the nearest tenth

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If the circumference of a circle is 12, and the angle measure of an arc is 60o, which is the length of the arc?
Kaylis [27]
We can get the measurement of the arc by determining first the radius of the circle. The circumference of a circle is equal to 2 * pi * radius. Hence from a 12 unit2 circumferenced circle, the radius is 1.91 units.Length of the arc is equal to radius times the angle in radians. 60 deg is equal to pi over 3. The length of the arc is equal to 2 units.
3 0
3 years ago
Which of these division problems have the same quotient as 12.3 divided by 0.4? Check all that apply.
Orlov [11]

Answer:

The answer is A and C

Step-by-step explanation:

The answer is A because 12.3 multiplied by 10 is 123, and 0.4 multiplied by 10 is 4.

12.3 * 10 = 123

0.4 * 10 = 4

So, this shows that this equation is the same as 12.3 divided by 0.4

The answer is C because 12.3 multiplied by 100 is equal to 1230, this is the same for 0.4

12.3 * 100 = 1230

0.4 * 100 = 40

So, the answer is both A and C.

Hope this helps! :)

5 0
3 years ago
Read 2 more answers
Given the endpoint (4, −2)and midpoint (9, 4), find the other endpoint.
marissa [1.9K]

Answer:

Step-by-step explanation:

(x + 4)/2 = 9

x + 4 = 18

x = 14

(y-2)/2 = 4

y - 2 = 8

y = 10

(14, 10)

4 0
3 years ago
Given that <br><img src="https://tex.z-dn.net/?f=x%20%3D%205y%20-%20z" id="TexFormula1" title="x = 5y - z" alt="x = 5y - z" alig
yuradex [85]

x = 5y - z

You can think that x and z are numbers, and we have one variable z.

x -5y = 5y - 5y - z

x - 5y = - z

(x - 5y)*(-1) = - z *(-1)

z = - x + 5y

7 0
3 years ago
*URGENT*
puteri [66]
Anwser
C= 344
P=516

Step by step explanation

If it flies 172 les then we can multiply
172 x 3= 516 or the speed of the private jet

Then
516 - 172= 344or speed of commercial jet

Please please give me Brainliest please
5 0
3 years ago
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