Answer:
30 times 10 is 300. 300 times 50 is 15,000.
Step-by-step explanation:
bc i know
Answer:
-4
Step-by-step explanation:
Use PEMDAS
Answer:
proof below
Step-by-step explanation:
Remember that a number is even if it is expressed so n = 2k. It is odd if it is in the form 2k + 1 (k is just an integer)
Let's say we have to odd numbers, 2a + 1, and 2b + 1. We are after the sum of their squares, so we have (2a + 1)^2 + (2b + 1)^2. Now let's expand this;
(2a + 1)^2 + (2b + 1)^2 = 4a^2 + 4a + 4b + 4b^2 + 4b + 2
= 2(2a^2 + 2a + 2b^2 + 2b + 1)
Now the sum in the parenthesis, 2a^2 + 2a + 2b^2 + 2b + 1, is just another integer, which we can pose as k. Remember that 2 times any random integer, either odd or even, is always even. Therefore the sum of the squares of any two odd numbers is always even.
Answer: SAS
Step-by-step explanation:
Answer:
y = -3x + 9
Step-by-step explanation:
The equation of a line is
y = mx + c
Step 1: find the slope
Two points given
( 2 , 3) ( 0 , 9)
m = y2 - y1 / x2 - x1
x1 = 2
y1 = 3
x2 = 0
y2 = 9
m = 9 - 3 / 0 - 2
m = 6/ -2
= -3
Step 2 : substitute any of the two points given into the equation of a line
y = mx + c
m = -3
y = -3x + c
( 2 , 3)
x = 2
y = 3
3 = -3(2) + c
3 = -6 + c
c = 3 + 6
c = 9
y = -3x + 9
The equation of the line is
y = -3x + 9
