Answer: 1:-15
2: -27
3: 58
Step-by-step explanation: PEMDAS
Parenthesis, Exponent, Multiplication, Division, Addition, subtraction
Answer:
Step-by-step explanation:
SOORY
Answer:
The slope of the line given by the equation -3x=30-5y is .
Step-by-step explanation:
-3x=30-5y
Move the -3x to the right side of the equal sign and the -5y to the left.
5y=30+3x
By switching them to opposite sides, their sign changes from - to +.
Then, divide both sides by 5 in order to isolate the y.
You get:
<em>y= </em><em />
According to y=mx+b, mx refers to the slope.
In this case, the slope would be .
Answer:
62.8 in
Step-by-step explanation:
The circumference (C) of a circle is calculated as
C = πd ( d is diameter ) , then
C = π × 20 = 20π ≈ 62.8 inches ( to the nearest tenth )
Answer:
x=77
Step-by-step explanation:
180-38-39=103
180-103=77