Exchange Ideas | Insights and Inquiries on Education - david-great.blogspot.com

Berlin wall fall significant to the Cold War

CHANGING STATES OF MATTER As substances gain or lose energy their state, or phase, of matter changes, STATE OF MATTER Sublimation Deposition Condensation

Suppose p = (1, 3, 4) and q = (5, 8, 12) are solutions to the linear system of equations: a11x1 + a12x2 + a13x3 = α1 a21x1 + a22x2 + a23x3 = α2 a31x1 + a32x2 + a33x3 = α3 a41x1 + a42x2 + a43x3 = α4 Check that all points on the line joining p and q are also solutions to the above system of equations. General Statement: If a system of linear equations in n variables has two solutions, then all points on the line joining the two solutions are also solutions to the system. Therefore, if a system of linear equations has at least two

crop researchers plant 15 plots with a new variety of corn. The yields in bushels per acre are: 138.0 139.1 113.0 132.5 140.7 109.7 118.9 134.8 109.6 127.3 115.6 130.4 130.2 111.7 105.5 Assume that Math Notation bushels per acre. a) Find the 90% confidence interval for the mean yield for this variety of corn. b) Find the 95% confidence interval. c) Find the 99% confidence interval. d) How do the margins of error in (a), (b), and (c) change as the confidence level increases?

desde la parte mas alta de un faro de 50m de altura se observa un bote a una distancia de 130m. se pide hallar la distancia desde el pie del faro hacia el bote

Two narrow, parallel slits separated by 0.850 mm are illuminated by 600-nm light, and the viewing screen is 2.80 m away from the slits. (a) What is the phase difference between the two interfering waves on a screen at a point 2.50 mm from the central bright fringe? (b) What is the ratio of the intensity at this point to the intensity at the center of a bright fringe?

What is the multiplicative inverse of 21/2

This is being graded.Great answers only​

A mixture of 1.374g of H2 and 70.31g of Br2 is heated in a 2.00 L vessel at 700 K. These substances react as follows: H2(g) + Br2(g) <---> 2HBr(g) At equilibrium the vessel is found to contain 0.566g of H2. a. Calculate the equilibrium concentrations of H2, Br2 and HBr. b. Calculate Kc.

please help: solve for x​

The circumference of a circle is 7π m. What is the area of the circle? ​3. 5π​ m² ​12. 25π​ m² ​14π​ m² ​49π​ m².

"The simple dew of love" is an example of which of these?Metaphor,Simile,Symbol,Onomatopoeia

WILL GIVE BRAINLISTuse the grouping method to factor this polynomial

Aimee wants to cut a piece of ribbon that is 5 1/4 meters long into lengths that are 1 1/8 meters long. How many full pieces can she cut?

Budgeted sales price is $10, actual is $12. Budgeted sales volume is 2,500 units, actual is 2,400 units. Budgeted input prices are $4/pound for DM and $15/hour for DL, actual is $4.50/pound for DM and $14/hour for DL. Budgeted amounts of inputs are 0.5 pounds of DM and 0.2 hours of DL per unit of output. Actual amounts are 0.45 pounds of DM and 0.19 hours of DL per unit of output. Budgeted fixed costs are $22,000, actual $23,000. Required: Which of the following variances are favorable / unfavorable (use common sense rather than computations):

Below are the supply and demand equations for stereo headphones in a certain market. In these equations, p represents price, D represents demand, and S represents supply. D p+94 S-39 - 160 What is D at the point of equilibrium, to the nearest whole number? a. 151 b. 104 C. 71 d. 54 Please select the best answer from the choices provi e and Exit Next Submit Mark this and totum

As per the FLIP, what are the 3 phases of flight?

Describe the setting of Zarzuela in two sentences.

What unique characteristic would the beetles shown below develop through biological adaptation if, over a period of years, the bark on the trees shown became spotted? Bark of tree The beetles would become spotted. The beetles would become plain. About half the beetles would become spotted and half would not. There would be no change.

Why are the cave paintings of early humans significant? They give directions to rivers or hunting grounds. They show the original calendars. They show results of early hunts. They give evidence of cultural, religious, or social characteristics of the people.

Which security risk is elevated when port-based Security policy rules are used?The firewall's resources will be negatively impacted by processing unwanted traffic.Unwanted applications can get through the firewall, bringing their vulnerabilities with themThe network is more vulnerable to TCP DoS attacksThe firewall is more vulnerable to UDP DoS attacks

the temperature was -25 degrees and rose 18 degrees.expression: final temperature:

1.Which system of linear inequalities is graphed? ​

PLEASE HELP ME SPANISH!!!

Which of the following most accurately describes direct finance? 1) Borrowers can directly affect the bank via insider information available to them. 2) The lenders and borrowers come together in a market setting. 3) A bank possesses insider information that instantly affects the saver. 4) A seller has a critical piece of information that immediately affects the transaction.