Answers by Changwang Zhang
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Answers by Changwang Zhang

Answers by Changwang Zhang
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Find x, y, and z. Enter your answer in simplest radical form. Enter the correct values in the boxes. x=? y=? z=?
answered Oct 25, 2024
6 votes
15.4k views
Which physical characteristics made these economic activities possible? A) Harsh climate B) Rocky terrain C) Abundant water resources D) Dense forests
answered Oct 3, 2024
7 votes
114k views
Generally, epidemiological studies ________.
answered Sep 30, 2024
5 votes
208k views
Consider the following hypothesis problem. n = 21, s² = 90, H₀: σ² ≥ 99, Ha: σ² < 99 If the test is to be performed at the 5% level, what are the critical value(s) from the chi-square distribution? (Round your answer(s) to three decimal places. If the test is one-tailed, enter NONE for the unused tail.)
answered Sep 28, 2024
7 votes
148k views
What is the predicted altitude of the plane at 1:00 p.m.? A. 30,000 feet B. 35,000 feet C. 40,000 feet D. 45,000 feet
answered Jul 22, 2024
0 votes
60.3k views
A college graduating class is made up of 450 students. There are 206 more girls than boys. How many boys are in the class? a. 122 b. 144 c. 206 d. 328
answered May 12, 2024
2 votes
219k views
Demographic trends driving workforce diversity in American society today include? 1) Increasing racial and ethnic diversity 2) Growing number of women in the workforce 3) Rising number of immigrants 4)
answered Feb 21, 2024
6 votes
39.9k views
How did architects in ancient Egypt determine a standard length for a cubit, which was traditionally the measure of a man's arm from his elbow to his fingertips? 1) by taking the longest step that they
answered Feb 5, 2024
4 votes
144k views
What is the adjective of Our living room is messy
answered Sep 27, 2023
7 votes
13.9k views
What is the slope of the line that contains the points (13, -2) and (3, -2)?
answered Aug 28, 2023
9 votes
152k views
EASY HOMEWORK FOR YOU! But not for me, because I'm from Russia and don't know English. I need to make nouns out of these words. Help me, please! Urgently
answered Aug 23, 2023
6 votes
225k views
Need help ASAP!! Please!!
answered Aug 19, 2023
4 votes
86.9k views
Trent earns scores of 60, 90, and 72 on three chapter tests for a certain class. His homework grade is 68 and his grade for a class project is 64. The overall average for the course is computed as follows:
answered Aug 16, 2023
3 votes
43.3k views
Discuss the negative impacts of droughts to the Farmers​
answered Jul 10, 2023
9 votes
137k views
For the right triangles below, find the exact values of the side lengths b and a. If necessary, write your responses in simplified radical form. 300 Х X 5 ? 459 5 4= 45° 60 3 Check Type here to search
answered May 17, 2023
5 votes
14.5k views
What is 12 x 34 /49 x 45 + 58 - 67?
answered Nov 29, 2022
1 vote
131k views
I would be very happy if you do
answered Nov 25, 2022
5 votes
173k views
Which set of ordered pairs represents a function? a O {(7,4), (3,8), (-4, –4), (0,4)} O {(-8,0), (-5,6), (-8, 1), (-6,5)} {(-5, 1), (3, -7), (2, -4), (2,7)} O {(4,2), (4, -9), (-9, -6), (7,1)}
answered Oct 15, 2022
3 votes
2.0k views
9. CALCULATE: How much more power is used to move a weight of 500 N a distance of 20 m in 5 s than is used to move a weight of 1,000 N a distance of 30 m in 30 sec?​
answered Sep 4, 2022
10 votes
82.2k views
Marcus borrows $16,500 to pay for his tuition. The annual interest rate of the loan is 4.8%. How much interest does Marcus owe at the end of one year? need help due tomorrow
answered Jun 4, 2022
6 votes
191k views
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