Recent activity by Xring

Recent activity by Xring

A radioisotope has a half-life of 12 hours. How much of an original 250 nanograms sample will remain after 72 hours? a) 2.6 nanograms b) 3.9 nanograms c) 5.7 nanograms d) 8.2 nanograms

asked Dec 22, 2024

1 answer 218k views

Your textbook suggests that advanced planning is important primarily because such planning

asked Dec 6, 2024

1 answer 14.4k views

How are saltwater ecosystems and freshwater habitats different from one another? Some land mammals live in saltwater ecosystems but not in freshwater habitats. Saltwater ecosystems are home to migrant

answered Nov 26, 2024

2 answers 194k views

Which expression is equal to 8m^2+16m/m−3 ⋅ m^2−m−6/4m^3+8m^2?

answered Nov 14, 2024

2 answers 44.2k views

Which mental health condition may require therapy focusing on health-related anxieties, reassurance, and cognitive-behavioral techniques, while the other often involves antipsychotic medications, therapy

answered Aug 29, 2024

1 answer 147k views

When you plan to meet your friend from another class at lunch, what will you do with him?

asked Aug 17, 2024

1 answer 35.4k views

Which of the following is true about the horizontal component of a projectile? A: There is no acceleration B: The change in displacement is always negative C:The time is different than the vertical component

asked Dec 27, 2023

1 answer 9.3k views

Can you help me please

asked Aug 26, 2023

1 answer 68.9k views

(Please help!! I will give brain!)How did Louis Pasteur change our understanding of science? O He created rules to show how parents pass on traits. O He proved that bacteria cause infectious diseases.

answered Jul 27, 2023

2 answers 121k views

Find the Missing Angle *

answered Jun 24, 2023

2 answers 78.8k views

Which piece of evidence for the Big Bang Theory was determined because stars and galaxies are moving away from us? The red sun effect Cosmic backround radiation The expanding universe The planetary effect

answered Apr 14, 2023

2 answers 25.1k views

Hello can you help me with the following question:Find the sum

answered Apr 5, 2023

1 answer 92.5k views

What is the function of the antenna proteins in photosynthesis

answered Feb 7, 2023

2 answers 41.9k views

Write 8 sentences about how we can reduce pollution and wildfires.

answered Jan 20, 2023

2 answers 113k views

state modern periodic law ?arrange the element of halogen family in the increasing order of their number of Shell ?what type of Bond formation exists between the element of group 1 and 17 and why?

answered Nov 23, 2022

1 answer 224k views

Find x B С (5x + 2)° 33° A MLADC = 12x D

asked Nov 8, 2022

1 answer 228k views

Ricardo paid an annual premium of $1,200 in total liability coverage for his car, including up to $200,000 in bodily injury coverage and $100,000 in property damage coverage. Ten years into his policy,

answered Oct 31, 2022

2 answers 28.5k views

Identify an example of an Ecosystem Service? A. All of the above B. Pollination C. Red tide D. Deforestation

answered Oct 19, 2022

1 answer 174k views

Jess is building a skateboarding ramp in the shape of a triangular prism with the dimensions shown. If Jess wants to cover all faces of the ramp with plywood, how much plywood will he need? A triangular

answered Sep 8, 2022

1 answer 83.5k views

TELL WHICH NUMBER IS GREATER. -7, -16 1)16 2)-16 3)-7 4)7

answered Aug 28, 2022

1 answer 164k views

Search QAmmunity.org