Answer:
19 h
Step-by-step explanation:
The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.
The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115
7.5. 10.5*5 and divide that by 7
Answer:
is this how it's written exactly?
y= x + 2 + 3
or did you remove the parenthesis?
The sum of 7 to the 9th power and y is expressed as 7⁹ + y
This statement will result in an exponential equation since we will have a base and an exponent
- 7 raise to the 9th power is expressed as 7⁹
- Taking the sum of the result and y;
- The final expression will be 7⁹ + y
Hence the sum of 7 to the 9th power and y is expressed as 7⁹ + y
Learn more here: brainly.com/question/11610038
Answer:
P = 0,7947 or 79,47%
Step-by-step explanation:
We have 20 balls, the total possible outcomes drawn two balls simultaneously is:
C = m! /n! *( m - n )!
C = 20!/2! *( 20 - 2)!
C= 20*19*18!/ 2* 18!
C = 20*19/2
C = 190
Now the number of successful outcomes x ( those where balls differ by more than 2 is)
x = total numbers of outcomes - 20 ( outcomes differing in 1 ) - 19 (outcomes differing in 2 )
x = 190 - 39
x = 151
Then the probability of drawing tw balls with numbers differing n mr than two is
P = successful outcomes / total outcomes
P = 151/190
P = 0,7947 or 79,47%
