XXX

This page lists questions and answers that were posted by visitors named XXX.

Questions

The following questions were asked by visitors named XXX.

In a 24 km race, during which each runner maintains a constant speed throughout, Alice crosses the finish line while Becky is still 8 km from finishing and Caitlin is 12 km from finishing. When Becky crosses the finish line, Caitlin still has d kilometers...

Find B - A if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3.

At the end of Week 5 of my basketball team's season, our record is 3 wins and 17 losses. Each week after that, we win 3 games and lose 1 game. At the end of which week will my team have won at least 65% of its games total for the first time in the season?

Given that -3 <= 7x + 2y <= 3 and -4 <= y - x <= 4, what is the maximum possible value of x + y?

The surface area of a box is 160. The length of the box is twice its width as well as 4 less than its height. How many units are in the height of the box? (The surface area of a box is the sum of the areas of all 6 of its rectangular faces.)

A monic quadratic is a quadratic in which the coefficient of the quadratic term is 1. For example, r^2 - 3r + 7 is a monic quadratic, but 3t^2 - 3t + 1 is not. A teacher writes a monic quadratic on the board. Joanie copies the quadratic onto her paper, bu...

Let r and s be the roots of y^2 - 19y + 7. Find (r-2)*(s-2).

A number is called a perfect square if it is the square of an integer. How many pairs of perfect squares differ by 495? (Order does not matter. So, the pair "16 and 9" is the same as "9 and 16".)

For what real number k does the product (25 + ki)*(3+2i) equal a real number?

What constant must we place in the blank below in order to be able to factor the resulting expression into the product of two linear factors: 2mn - 16m - 7n + ____

Find all complex numbers $z$ such that \[ |z|^2-2\bar z+iz=2i. \]

For what real values of a does the quadratic 4x^2 + ax + 25 have nonreal roots? Give your answer as an interval.

The roots of the quadratic equation z^2 + az + b = 0 are 2 - 3i and 2 + 3i. What is a + b?

For what real values of c is 9x^2 + 16x + c the square of a binomial? If you find more than one, then list your values in increasing order, separated by commas.

The Mathletes won 2 of their first 10 meets. They went on to win all their remaining meets and finished the year with an equal number of wins and losses. What is the total number of meets in which the Mathletes competed?

A car gets 30 miles per gallon of gas and is driven 1000 miles per month. Gas costs $4 per gallon. How much will the car's owner save on gas expenses in one year by buying a new car that goes 50 miles for each gallon of gas?

Tom took five math tests and got an integer score on each of them. He never scored higher than 90, and his lowest score was the fourth test. If his average score, rounded to the nearest integer, was 82, what is the lowest possible score he could have gott...

Eight U.S. coins are worth a total of 38 cents. How many of the coins are dimes?

The Smith family has 13 children, all born exactly 2 years apart. How old will the second-youngest child be when the oldest child is five times the age of the youngest child?

Find the largest three-digit number that can be written in the form 3^m + 2^n, where m and n are positive integers.

Find 3 and 2/7 + 2 and 3/14 + 4 and 3/7 A:9 and 8/14 B: 10 and 1/7 C:9 and 3/7 D: 9 and 13/14

Answers

The following answers were posted by visitors named XXX.

184 hours = 7.6 days ==> 1 week? The steel industry will collapse if this is the answer. LOL! Just by seeing the figure one can tell this does not make sense.

The formula and explanation are given in the lecture video S23V2, in this case what you need to be cautious is the Z, Pt and Au are FCC structure, hence you need to draw the unit cell and its surrounding unit cell to get the idea of the coordination numbe...

Bunch of cheaters who can not respect the code of honor... LOL.

Odesa, like to help each other to cheat because he/she like to be cheated... Hahaha

No one will kick them out of the course, who can detect them via this Jishka website? They already done the disgraceful deeds by their own, that will be their punishment. LOL.

Yawnnnn. What a kind-hearted person you are Odesa I am touched by your way of cheating and helping each other. LOL.

Why posting the question that only need High School grade to answer? Are you Junior High School student or lower grade? If you have no intention to put some effort in your study from the start, no need to enroll and then cheat.

Why posting the question that only need High School grade to answer? Are you Junior High School student or lower grade? If you have no intention to put some effort in your study from the start, no need to enroll and then cheat.

Why posting the question that only need High School grade to answer? Are you Junior High School student or lower grade? If you have no intention to put some effort in your study from the start, no need to enroll and then cheat.

Why posting the question that only need High School grade to answer? Are you Junior High School student or lower grade? If you have no intention to put some effort in your study from the start, no need to enroll and then cheat.

Let's play around! Go GO Go!!! FIre in you hole!

Sorry, but that is incorrect. :(

A monic quadratic is a quadratic in which the coefficient of the quadratic term is 1. For example, r^2 - 3r + 7 is a monic quadratic, but 3t^2 - 3t + 1 is not. A teacher writes a monic quadratic on the board. Joanie copies the quadratic onto her paper, bu...

2=6, 3=12, 4=20, 5=30, 6=42, 7=56, 8=72, 9=90. 90 is your answer.

please continue

are you sure? I need the actual answer.

Is the answer 56?

the bar is the complex conjugate

Damon, that is against the rules!

Please convert that to an interval!

Pleeease answer my question Damon!

Answer please!!!

Thank you so much for helping me x

Lady Unsane got me a 9/18... I was failing anyway though