Answers by Lei Zhao
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Answers by Lei Zhao

Answers by Lei Zhao
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Centrifuges must be calibrated every what?
answered Dec 19, 2024
2 votes
101k views
One year old baby often weighs 250% of its birth weight. What should a one year old baby weigh if it was 8 pounds at birth?
answered Dec 9, 2024
0 votes
191k views
Annie's homemade’s regular selling price is $5.00 per serving of ice cream. it has been approached by a wedding party who has offered to pay $856.00 (via credit card) for 240 pre-packaged servings of ice
answered Oct 26, 2024
1 vote
69.6k views
Question For online learning, universities are adapting their curricula to three different electronic platforms computers tablets and smart phones. In the sentence above, the underlined part should be
answered Oct 13, 2024
2 votes
72.3k views
Darnisha uses sheet metal to create a box. The polynomial function V (a) = 4x³-520x² +1,2002 gives the volume in cubic centimeters of the box in terms of its height, z. If Darnisha creates a box with a
answered Sep 25, 2024
3 votes
233k views
Heptavalent pneumococcal conjugate vaccine (PCV) is recommended for
answered Jul 13, 2024
4 votes
10.2k views
Your Answer to the Big Question, "How can we become who we want to be?"
answered Mar 23, 2024
2 votes
26.9k views
Summarize the effects of Imperialism on India. 3-5 sentances
answered Feb 7, 2024
4 votes
70.9k views
What is the value of 6.453 - 9?​
answered Oct 30, 2023
4 votes
167k views
After all the taxes are withheld, Jimmy's paycheck is about 80% of his total earnings. Estimate his pay if his total earnings for the pay period are $91.25
answered Sep 13, 2023
4 votes
198k views
∠ 1 and ∠ 2 are supplementary angles, if ∠ 1= 2x +31 and ∠ 2 = x + 8. Find the measurement of ∠ 1 and ∠ 2
answered Aug 29, 2023
1 vote
43.0k views
Mike walked 3 miles in 45 minutes. What was his rate in miles per hour? miles per hour 2 miles per hour 4 miles per hour o 15 miles per hour
answered Aug 17, 2023
3 votes
78.6k views
Jon had 20 grapes an sally took 14 how many are left
answered Jul 29, 2023
8 votes
49.2k views
There is a 0.0087 probability that a randomly selected 30-yoar-old malo lives through the your A life insurance company charges $178 for insuring that the malo will livethrough the year. If the male does
answered Jun 14, 2023
3 votes
2.9k views
Form an equation whose roots are 2 and -4/3
answered Jan 12, 2023
8 votes
140k views
350 people watched a beauty contest. Some paid GH¢20.00 each while others paid GH¢30.00 each. The total amount collected was GH¢8,800.00. Find how many paid the two different rates.
answered Dec 27, 2022
2 votes
124k views
What is the equation of a circle with center (-4,7) and radius 8?
answered Dec 17, 2022
3 votes
134k views
What is a resource that is used up faster than it can be replenished? A renewable resource B solar energy C non-renewable resource D wind energy
answered Dec 7, 2022
9 votes
6.0k views
What was the purpose of the social hierarchy in ancient Egypt? Who was at the top and who was at the bottom? pls help 10 points
answered Sep 25, 2022
9 votes
171k views
How was the revolutionary war different in the north, west, and south?
answered Jun 23, 2022
1 vote
35.5k views
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