Answer:
(a) 0.023%
Step-by-step explanation:
Fill in the given number and do the arithmetic.
A(12) = 0.23·12·e^(-0.4·12) ≈ 0.0227 ≈ 0.023
The percentage of alcohol in the blood 12 hours after the drink is about 0.023.
Answer:-15x • (x2 + 1)
Step-by-step explanation:
The Coefficient of variable term x after making it isolated would be -36
Step-by-step explanation:
We have to solve the equation in order to get the coefficient of x at the end after isolation.
Given

Distribute

Combine like terms:

subtracting 9x from both sides

We can clearly see that the coefficient of x at the end after it has been isolated is -36
Hence,
The Coefficient of variable term x after making it isolated would be -36
Keywords: Linear Equation, Variable
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Estimated bill amount is $57
Step-by-step explanation:
Round off the cost of 1 appetizer.
Cost of 1 appetizer = $6.50 ≈ $7
Find the cost of 2 main courses.
Cost of 1 main course = $15.75 ≈ $16
∴ Cost of 2 main courses = 2 × 16 = $32
Find cost of 2 drinks.
Cost of 1 drink = $2.25 ≈ $2
∴ Cost of 2 drinks = 2 × 2 = $4
Find the cost of 2 desserts.
Cost of 1 dessert = $7.25 ≈ $7
∴ Cost of 2 desserts = 7 × 2 = $14
Add all and find the total cost.
Estimated Total bill amount = 7 + 32 + 4 + 14 = $57
Answer:
y=-3x+4
Step-by-step explanation:
Use rise/run to find slope. Rise= -3, Run= 1
Y-Intercept is found where the line intersects y.