Q and A for the topic: General

Use the intermediate theorem to show that x^3+x+3=0 has a solution in interval (-2, 0)

Are 2 and 2x like terms

write an equation of the line that passes through (7/10, 9/13) and is perpendicular to the X axis

What is the probability of throwing 2 dice 10 times and obtaining a sum of 6 4 times?

a charity group collected $6750 worth of donations on Saturday, Sunday and Monday. They collected $1251 less on Saturday than on Sunday. The amount collected on Sunday was 4 times the amount collected on Monday. What was the amount collected on Sunday?

A charity group collected $6,750 worth of donations on Saturday, Sunday and Monday. They collected $1251 less on Saturday than on Sunday. The amount collected on Sunday was 4 times the amount collected on Monday. What was the amount on Sunday?

(20-(2x8))^2-3x5+2^0

Simplify square root of 20

4 divided by 415

{a+b+c=57 {b-a=6 {d=3/4a {d+b =c

Miss Hall made 40 cookies for a bake sale. She sold 2/5 of them and gave 1/3 of the remaining cookies to the students. How many cookies does she have left?

Ms A made 40 cookies for a bake sale. She sold 2/5 and gave 1/3 of cookies to the students. How many cookies did she have left?

(2x+6)(2x+5) multiply binomial , Express as trinomial

What is the sum of 1/8 plus 3/8

For the question below, use the following set of scores: 82, 60, 78, 81, 65, 72, 72, 78. What is the standard deviation? Round to the nearest hundredth.

Assume that giraffes have a mean height of 16.0 feet and a standard deviation of 2.1 feet. Two giraffes are selected from a nature preserve with heights of 13.1 feet and 20.3 feet respectively. Determine the z-scores associated with each giraffe. Would either of those giraffes be considered significantly short or significantly tall? Why or why not?

Using the table below, a linear regression was performed that found the regression parameters, b = 2.4, and a = 5.5. x y 1 8 2 10 3 13 4 15 It was also determined that the Pearson correlation coefficient is approximately 0.996546. Calculate the standard error of the estimate, and the proportion of the variance not accounted for by the linear model. (a) The Standard Error of the estimate is 0.22, and the proportion of the error not accounted for by the linear model is 0.203454 (b) The Standard Error of the estimate is 0.308, and the proportion of the error not accounted for by the linear model is 0.203454 (c) The Standard Error of the estimate is 0.22, and the proportion of the error not accounted for by the linear model is 0.01 (d) The Standard Error of the estimate is 0.308, and the proportion of the error not accounted for by the linear model is 0.01

-30/4+5/4x=2+3x

-6x+6y=6 -6x+3y=-12

-7x+y=-19 -2x+3y=-19