11. A random sample of 30 four-member families visiting Disneyworld was selected, and the average amount spent by these families on their Disneyworld visit was $825.75. The population standard deviation is $98.25. Find the 90% confidence interval for the true population mean. Express the interval endpoints to the nearest cent.

Q: 3. √11

A:

Q: 7.2-9

A: Solution: The percentage of body fat measured at the beginning of the semester and at the end of the…

Q: 45x(4²)3 3. Express as a single power. 48 a. 43 b. 42 C. 418 d. 46

A:

Q: 1.25a +3> 0.5a-6 and 2.5a 129-1.5a

A:

Q: xp xペ-4xt13

A:

Q: 7. Use your graph to estimate how the scale factor changes between a box with volume of 1 cubic foot…

A:

Q: 1.6+0.4(x+6)+3.2

A: To simplify the expression means writing it in the simplest form.

Q: -2.4≥ x/5

A: We have to solve for x

Q: 1. ²-4 Difference of squares

A:

Q: (c) Give an orthonormal basis for Span {x₁, X2, X3}.

A:

Q: (y>-- (2x-y 2-3 AALAM

A: Here we have to graph the given inequality:-  y>-x2-22x-y ≥-3

Q: Which graph represents the following ellipse (z+1)ª + 16 (v-3)° 36 = 1?

A:

Q: (b) Give an orthogonal basis for Span {X₁, X₂, X3}.

A:

Q: 97 45. -x³dx +

A:

Q: Coga 2.

A: we have to find, log7(6)÷log7(3)+log7(2)=?

Q: Researchers at a drug company are testing the duration of a new pain reliever. The drug is normally…

A:

Q: 7.2-2

A: Given:   x y 644 623 493 472 532 492 462 661 565 540   502   549   518

Q: 10.1-2 q 6

A: Image is attached with detailed solution.

Q: 3 19.21 11 11

A:

Q: 3. 3c. A. B. Women have head circumferences that are normally distributed with a mean of 23.55…

A: For the distribution of the circumference of the heads (in inches) of women at the population level,…

Q: 2. Ꮖ2 ds Ꮭ Ꮖ1 Ꮖ

A: The integral is: ∫x1x2dsx. To Do: We have to evaluate this integral.

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.