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Simplify the expression

Which is the electron configuration for lithium? 1s2 2s3

Chemical reaction is at equilibrium when .A, chemical reaction is at equilibrium when there is no reverse reaction possible, only a forward reaction.B. the rate of the forward reaction equals the rate of the reverse reaction.C. the reaction occurs quickly.D. there are equal amounts of products and reactants

A weight is attached to a spring suspended from a beam. At time t = 0, it is pulled down to a point 10 cm above the ground and released. After that, it bounces up and down between its minimum height of 10 cm and a maximum height of 20 cm, and its height h(t) is a sinusoidal function of time t. It first reaches a maximum height 0.8 seconds after starting.What are the mean, amplitude, phase shift and period for this function? (Use a phase shift with an absolute value less than the period.)meanamplitudephase shiftperiod

7 prime numbers have a mean of 10. The median is 11, the mode is 17, the Interquartile Range is 14 and the range is 15. Find all 7 numbers.​

After school, Tony biked toward the mountains at a constant rate of 8 mph. An hour later, Terry biked the same route at a constant rate of 12 mph. Let t = Length of time Tony had been biking when Terry caught up. Which expression represents how long Terry had been biking when he caught up with Tony?

A company loses ​$42 as a result of a shipping delay. The 3 owners of the company must share the loss equally. Write an expression for the earnings per person. Evaluate the expression.

I need help with this ... I don't understand it.. Please help with it asap

Which statement is true about inorganic compounds? They are not made of atoms. They contain carbon. They are not made from living things. They are all elements.

The High Renaissance period produced some of the greatest works of art known today. T/F

Difference Between Human geography & Physical Geography. Also Similarities between the two .

What is the measurement of 1?

Which of the following equations can be solved for x in one step by multiplying both sides of the equation by 2?

for f(x) = 2x+1 and g(x)=x*2-7 find (f/g) (x).

Which of the following statements is true about the medulla?A) Medulla becomes hyperosmoticB) Medulla becomes hypoosmoticC) Medulla remains isotonicD) Medulla becomes hypertonic

A cup of coffee cools at rate proportional to the difference between the constant room temperature of 20.0 degree C and the temperature of the coffee. If the cooling rate is determined to be 2.1% per minute and the current temperature of the coffee is 74.4 degree C, what will the temperature of the coffee be 28.0 minutes from now?

Find the value of b.

Emergency kits in a nursing home or hospice must be inventoried: A) Monthly. B) Quarterly.C) Semi-annually. D) Annually.

A corporate iued a bond with a face value of Php 2,000, a 6% coupon, and a 10-year maturity date. How much will the corporation pay to the bondholder?

Marshall dove deeper three times in the ocean. If he had a total depth of six feet, how much did he dive each time, x?

Factor the polynomial 12c9 + 28c7. Find the GCF of 12c9 and 28c7. 4c7 Write each term as a product, where one factor is the GCF. 4c7(3c2) + 4c7(7) Use the distributive property.

Which structure reabsorbs 25 percent of the water in the nephron?

please help with this math question!

Explain how the artwork relates to Quintilian’s famous quote, including the artist’s technique(s) and inspiration(s).

THIS IS IMPORTANT! MY ONLY TRY! I WILL GIVE BRAINLIEST! I WILL RATE AND VOTE! PLEASE..SAHRE YO SMARTNESS!!! I BEG! IF YOU ARE VERY POSITIVE THEN PLEASE ANSWER! 13. What is the best reason to include a footnote or end note in your paper? A) after a paragraph with few facts, to make the paper look more credible B) to give extensive additional information on a detail or a quote C) in place of a parenthetical citation, when you need to cite a source