F(x) = 4x^2+ 7x – 18
f(-9)
1 answer:
Answer:
f(-9) = 243
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = 4x² + 7x - 18
f(-9) is x = -9
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em>: f(-9) = 4(-9)² + 7(-9) - 18
- Evaluate Exponents: f(-9) = 4(81) + 7(-9) - 18
- Multiply: f(-9) = 324 - 63 - 18
- Subtract: f(-9) = 261 - 18
- Subtract: f(-9) = 243
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The chosen topic is not meant for use with this type of problem. Try the examples below.
y = x+4
y = 2x-5
y = x-1
Answer:
8.43 years
Step-by-step explanation:
Given data
Cost price P= $4995
Rate r= 10%
FInal amount A= $2150
The expression for the time/duration is given as
t= ln(A/p)/r
t= ln(2150/4995)/0.1
t= ln(0.430)/0.1
t= 0.843/0.1
t= 8.43
Hence the time it will take is 8.43 years
Answer:
d(-8)=-8 . it is very easy
Answer:
For A+B
a. 0.3+0.8 = 1.1
b. 1.2+1.4 = 2.6
c. 3.4 + 4.2 = 7.6
d. 2.25 + 2.95 = 5.20
For B-A
a. 0.8-0.3 = 0.5
b. 1.4-1.2 = 0.2
c. 4.2-3.4 = 1.2
d. 2.95-2.25 = .070
Simply divide 15.7 by 6.28 to get 2.5 :) easy peasy pumpkin pie
