Answer:
Step-by-step explanation:
Given
equation of circle 
Equation of tangent passing through (1,1)
Slope of tangent is given by differentiating equation of circle
at 
Equation of line with slope
Answer:
Step-by-step explanation:
2×26÷17=2× 26/17=52/17=3 1/17
Step-by-step explanation:
let w be the cost of a bottle of water and p be the cost of a bag of pretzels
"2 bottles of water and 3 bags of pretzels is $7.05" can be written as
2w + 3p = 7.05 ------------- eq.1
"The cost of a bag of pretzels is $1.35" can be written as
p = 1.35 ------------- eq 2
Together, eq 1 and eq 2 make up your system of equations
To solve, take eq 2 and substitute this value int eq 1
2w + 3 (1.35) = 7.05
2w + 4.05 = 7.05
2w = 7.05 - 4.05
2w = 3
w = 1.5
Hence the cost of a bottle of water is $1.50
Answer:
Step-by-step explanation:
y = -8x - 49
y = -x
- -8x - 49 = -x
- -8x + x = 49
- -7x = 49
- x = -7
- y = - (-7) = 7
Answer:-7m - 17
Step-by-step explanation:
9m + -16m --> 9m - 16m = -7m
-2 + -15 --> -2 -15 = -17
-7m-17
