Recent activity by Ruofan Kong

Recent activity by Ruofan Kong

Find A ∩ B if A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}. {7} {3, 4, 5, 7, 9, 10, 13, 17} Ø.

asked Dec 9, 2023

1 answer 175k views

Ema cuenta una experiencia reciente con amigos en un restaurante. Completa su descripción con la forma correcta del pretérito de estos verbos. buscar invitar salir comer llamar tomar encontrar llegar ver

answered Nov 22, 2023

1 answer 60.8k views

Which of the following numbers is not part of the solution? please help I can't figure it out

asked Sep 6, 2023

2 answers 194k views

If 40 = 62° and side x = 5, find the length of sides y and r.

asked Aug 1, 2023

1 answer 141k views

Evaluate the expression below when x is 4 3x^2 +5 =

asked May 20, 2023

2 answers 98.9k views

Lesson 5.4 1 .Find the measurement of the angle indicated for each trapezoid. 2.Find the measure. 3.Solve for [x]. Each figure is a trapezoid. 4.Find the measurement of the angle indicated for each trapezoid.

asked May 3, 2023

1 answer 109k views

In standard notation, 208.06 is written as:

asked Apr 18, 2023

1 answer 105k views

How do I find the Domain and Range in a function? Could someone explain it to me please? And if u can please provide a visual if not it’s alright :)

answered Feb 8, 2023

2 answers 173k views

A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in the laboratory. Which statement best provides evidence that the substance is a mutagen?

asked Jan 6, 2023

1 answer 79.1k views

Determine the solution to the system of equations: y = 3x +4 y = 2x + 1

answered Oct 28, 2022

1 answer 19.8k views

Find the area of all shaded regions. Give your answer as a completely simplified exact value in terms of pi. (no approximations)

answered Oct 9, 2022

2 answers 184k views

Why can water birds drown if they still have detergent on their feathers?

answered Sep 16, 2022

1 answer 118k views

Can somebody help me?

asked Jul 17, 2022

1 answer 104k views

How do I find the domain and range of this?

asked Jun 24, 2022

1 answer 231k views

You travel 250 km at 45 degrees South of East in 6.5 hours, then turn and travel 155 km at 45 degrees North of East in 3.5 hours A) What is the elapsed time? B) What is the total distanced traveled? C)

asked May 22, 2022

1 answer 134k views

Please help, PhotoMath isn’t helping and I don’t understand

asked May 4, 2022

1 answer 17.4k views

What is the omnivore(s)

asked Apr 23, 2022

2 answers 170k views

I really need help I’ve been stuck on this question for 10 min now

asked Apr 21, 2022

1 answer 160k views

Where do most Republican states seem to cluster in the United States? O A. Scattered throughout OB. The coasts O C. The interior D. In the South

answered Apr 12, 2022

2 answers 161k views

Can someone plz help me right side only :(!!!!!!

asked Mar 22, 2022

2 answers 233k views

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