Answer:
(a)
(b)
(c)Using Linear Approximation,L(4.2)=137.6
Using Quadratic Approximation,
Step-by-step explanation:
Given:
(a)Linear Approximation,
(b)Quadratic Approximation,
(c)To approximate:
L(x)=48x-64
L(4.2)=48(4.2)-64=137.6
Also, Using Quadratic Approximation
Answer:
f(3) = -11, f(-7) = 19
Step-by-step explanation:
f(x) = -3x -2
1.
f(3) is the f(x) when x = 3 so where we see x in the equation we write 3 and calculate
f(3) = -3(3) -2 = -9 -2 = -11
2.
f(-7) = f( x= -7) = -3(-7) -2 = 21 -2 = 19
Answer: x = 9, y = -14
Explanation:
4x + y = 16
2x + y = -2<span>
</span> 4x + y = 16
- 2x + y = -2
-------------------
2x + 0 = 18
-------------------
2x = 18
x = 9 <<<<< ¯\_(ツ)_/¯ For the value of x
Plug x = 9 into 2x + y = -2
2(9) + y = -2
12 + y = -2
y = -14 <<<<< ¯\_(ツ)_/¯ For the value of y
Answer:
Excact Form
Decimal Form
- 1.68 The 8 repeates itself
Mixed Number
Step-by-step explanation:
To add fractions, find the least common denominator and then combine
Answer:
y=45x+20
Step-by-step explanation:
y=45x+20
45 is constant, so every hour it takes, 45 dollars will be added (slope)
20 is the starting point (y- intercept)
Using formula y=mx+b
y=45x+20