To solve the problem, we need to get the formula for area of a circle -
Area = pi * r^2; r= radius
= 3.14 * (13cm)^2
= 3.14 * 169cm^2 or 3.14 * 13^2cm^2
= 530.66cm^2
Therefore, the area of the circular plate is 530.66cm^2
Answer: D= 12/37
Step-by-step explanation:
To find sin of angle A, you take the opposite angle over the hypotenuse. 12 is opposite of A and 37is the hypotenuse.
What is meant binary number?
Binary number system, in mathematics, positional numeral system employing 2 as the base and so requiring only two different symbols for its digits, 0 and 1, instead of the usual 10 different symbols needed in the decimal system.
What is decimal in number system?
- A number system which uses digits from 0 to 9 to represent a number with base 10 is the decimal system number.
- The number is expressed in base-10 where each value is denoted by 0 or first nine positive integers.
- Each value in this number system has the place value of power 10.
Similarities between binary and decimal systems -
- Arithmetic operations can be carried out on numbers in both the binary ands decimal systems
- Values of each bit and digit in binary and decimal numbers respectively depends on how close they are to the decimal point
- Integer and fraction components are represented in both decimal and binary systems.
Learn more about decimal systems
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The complement is what adds to an angle to get 90 degrees
so
x is 25 mroe than 4 times y
x+y=90
x=25+4y
sub 25+4y for x
25+4y+y=90
25+5y=90
minus 25 both sides
5y=65
divide both sides by 5
y=13
sub back
x+y=80
x+13=90
x=77 degrees
