A. The average age of bank managers is 40 years. Assume that the variable is normally distributed. If the standard deviation is 5 years, find the probability that the age of a randomly selected bank manager will be in the range between 35 and 46 years old. B. A rate analyst for LEYECO was asked to determine if there is a linear relationship between electricity consumption and the number of rooms in a single-family dwelling. Since electricity consumption varies from month to month, he decided to study usage during the month of March. He collected the following data. 10 87 1 5 4 3.5 14 7 4 12 3 2 No. of 3 3 6 Rooms (x) Kilowatts- 1.5 hours (y) 1. Determine the regression equation. 2. Plot the regression line. 3. Interpret the result. Acti Go to 1.

Q: -5 dx Evaluate 2x 10 A B c) 1 (D) 2

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Q: Find R for part A and Part B

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Q: Need help for question 1. And question 2.

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Q: Part 1,2,3

A: The point is, 6,-2 So, the point is in 4th quadrant.

Q: Add. 13 21 13 T8 O12 3 6.

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Q: Simplify. (4y²– 2y-3)+(3y²–5y-4)-(8)²-4y-8)

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Q: .2 y = 4 - x² and x +y = 2.

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Q: Differentiate. y = 2/x (2Vx) = (2x)-] xp

A: In the question it is asked to differentiate the function y=2x. Here, it is asked to differentiate…

Q: 27. 3xv2 v' = 3x4 + v3

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Q: Differentiate.

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Q: Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the past 8 weeks, a veterinarian took…

A: For the given data Perform z test for one population mean

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Q: Šolve. In(-x + 1) – In(3x + 5) = ln(-6x + 1)

A: To solveln-x+1-ln3x+5=ln-6x+1

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.