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ELEN [110]
3 years ago
12

Cos72cos130+sin72sin130

Mathematics
1 answer:
Setler [38]3 years ago
3 0

Answer:

.5299192646

Step-by-step explanation:

Just plug it in a calculator

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the head of a nail is circular , as shown the head of this nail has a diameter of 6 millimeters what measurment is closet to the
Nikitich [7]

Answer:

Area of nail's head  = 28.26 millimeter² (Approx.)

Step-by-step explanation:

Given:

Head of nail is circular

Diameter of nail's head = 6 millimeter

Find:

Area of nail's head

Computation:

Radius of nail's head = Diameter / 2

Radius of nail's head = 6 / 2

Radius of nail's head = 3 millimeter

Area of circle = πr²

Area of nail's head  = πr²

Area of nail's head  = (22/7)(3)²

Area of nail's head  = (22/7)(9)

Area of nail's head  = (3.14)(9)

Area of nail's head  = 28.26 millimeter² (Approx.)

5 0
2 years ago
In an exam a student scored 60 marks out of<br>a possible 80. What percentage is this?<br>?​
stiks02 [169]

Answer:

75%

Step-by-step explanation:

5 0
3 years ago
The answer to the question to my test
wel

Answer:

Option C, 262 cm^3

Step-by-step explanation:

<u>Step 1:  Substitute 5 for radius and 10 for height</u>

V = 1/3 * pi * r^2 * h

V = 1/3 * pi * (5)^2 * (10)

V = 1/3 * pi * 25 * 10

V = 250pi/3

V = 261.79

Answer:  Option C, 262 cm^3

7 0
3 years ago
The measure of an angle is 51 degrees
ki77a [65]
Supplementary angle = 180

180 - 51 = x

x = 129

C) 129 degrees is your answer

hope this helps
5 0
3 years ago
PLZ HELP<br> (3x+3/4x) - (6+1/2) = 4x<br> Solve for x
goldfiish [28.3K]

x=-26 is the final anwser :)

5 0
3 years ago
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