the angle of elevation from an anchor to the boat is 39° . the anchor is 30 meters from the boat find the distance, show your work!!!

Answer:

Perimeter of ΔABC = 16.46 units

Step-by-step explanation:

By applying cosine rule (CAH) in the given triangle ADB,

cos(∠BAC) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

cos(55°) = [tex]\frac{3}{AB}[/tex]

AB = 5.23 units

Since, ΔABC is an isosceles triangle

AB = BC = 5.23 units

AD = DC = 3 units [Perpendicular drawn from a vertex of an isosceles triangle is a perpendicular bisector of the opposite side]

Therefore, AC = AD + DC = 6 units

Now perimeter of ΔABC = AB + BC + AC

                                          = 5.23 + 5.23 + 6

                                          = 16.46 units

Answer:

4 boys

Step-by-step explanation:

[tex]\frac{1}{3} :\frac{y}{12}[/tex]

3 × y = 1 × 12

3y = 12

3y ÷ 3 = 12 ÷ 3

y = 4

Answer:

51°

Step-by-step explanation:

An inscribed angle is half of the arc it intercepts. This means that arc QR is twice m<QTR or 78°.

Since <QSR is a central angle, it equals the arc it intercepts. This means m<QSR equals arc QR which is 78°.

We can say that QS equals to RS because they are both radii, and radii of the same circle are equal. This means triangle QSR is isosceles.

Let <QRS equal x. Because of base angle theorem, <SQR would also be equal to x. Since the angles in a triangle add up to 180, we can write an equation to model the situation:

m<QRS + m<SQR + m<QSR = 180

We can substitute the values we have:

x + x + 78 = 180

2x = 102

x = 51

Since <QRS is equal to x, it is 51°

Answer:

841 is an odd number.

Step-by-step explanation:

Answer:

odd because 1 is an odd number

Step-by-step explanation:

hope this helps

Answer:

Step-by-step explanation:

3

Answer:

56.73 ft

Step-by-step explanation:

Given:

51° (angle)

73ft (hypotenuse)

With the given information use sin to determine the height of the kite.

sin51° = x/73

solve for x (height)

x= 73*sin51°

x= 56.73ft

Answer:

Yes, because its an rational number

Step-by-step explanation:

Solution: by division.

3/7 = 0.42857142857142857142…..

As you can see, the first six decimal places make a loop and become repetitive.

Then I proceeded to divide 100/6. That equals 16 remaning 4. Then counted four digits from0.428571. The 100th digit equals 5.

Answer:

3, 20, 2, and 2.5

Step-by-step explanation:

For each question, they gave you an x and y value. If you substitute them into the equation and then solve for k, you get your answer.

On the first one, x is 12 and y is 1/4. If you put those into the equation they gave you y = k/x, you get 1/4 = k/12

3/12 is 1/4 so the first k is 3.

Second one y = k/x. x is 4 and is 5. So 5 = k/4

20/4 is 5, so the second k is 20.

B

Because the slope is 3.5 so they cost 3.50 per pound

Answer:

B

Step-by-step explanation:

Answer:

I think that A is 45 degree angle.

Step-by-step explanation:

It ratio to the 90 degree angle.

Answer:

D. 6(x – 3)

Step-by-step explanation:

Answer:

where ?

Step-by-step explanation:

where is the question to solve ?

Answer:

the answer is zero

Step-by-step explanation

since the y value are both the same,  the points will be on the same straight line. from a mathematical standpoint this is how its done

y2-y1/x2-x1

5-5/-2-3

0/-5=0

Answer:

72degrees

Step-by-step explanation:

triangle=180

C:90 B:18

180-90-18=72

Answer:

edyg 6multiply by 7 each other

Answer:

C

Step-by-step explanation:

Answer:

62 sq units

Step-by-step explanation:

Area of top and bottom rectangles =

2(5x3) = 15 x 2 = 30

Area of front facing and back facing rectangle =

2(2x5) = 2 x 10 = 20

Area of side facing rectangles =

2(2x3) = 2 x 6 = 12

Total surface area = 30+20+12 = 62

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

all you need to do is draw then explain what you drew

Answer:

Distance between points (2, 1) and (8,9) is 10.

Step-by-step explanation:

let me know if you need an explanation :)

hope this helps and is right. p.s i really need brainliest :)

Answer:

10

Step-by-step explanation:

distance formula is the square root of x sub 1 - x sub 2 quantity squared +y sub 1 + y sub 2 quantity squared. In this case it would look like the square root of (8-2)^2 +(9-1)^2. this would simplify to the square root of 100, which is 10.

Step-by-step explanation:

xylophone : x

yo-yo : y

3x + 3y = 45 —(1)

5x + 6y = 80 —(2)

(1)*2 : 6x + 6y = 90 —(3)

(3)-(2):

6x + 6y = 90

-(5x + 6y) = 80

x =10 — (4)

Sub (4) into (1)

3(10) + 3y = 45

30 + 3y = 45

3y = 45-30

y = 15/3

y = 5

Answer:

The answer is C

Step-by-step explanation:

Answer:

The answer is D

Step-by-step explanation:

-4^2-4(7)(-8) = 240

Answer: is this history

Step-by-step explanation:

Answer:

1354

Step-by-step explanation:

DO IT IT'S EASY WITH A CALCULATOR !!!!!!

Answer:

Read step by step :> 1596 or 1354

Step-by-step explanation:

Are there any parenthesis? If it says (22+111) 12 then the answer is 1596, and if there are no parenthesis, the answer is 1354

Answer:

ft

Step-by-step explanation:

Answer:

Actually the distance is 3 1/3