Recent activity by Lucjan Grzesik

Recent activity by Lucjan Grzesik

What is a scientific explanation for a set of observations that canbe tested and is written with an "if/then" statement?A. a theoryB. a hypothesis

asked Oct 8, 2023

1 answer 70.0k views

The school store has 1500 pencils in stock and sells an average of 50 pencils per day. The manager reorders when the number of pencils in stock is 500. The number of days is the independent variable.

asked Oct 5, 2023

1 answer 191k views

A project requires a round, concrete patio on the back of a house with a diameter of 24′. How much concrete would be required to pour the patio 6″ thick? Express your answer in cubic yards.

asked Aug 25, 2023

1 answer 168k views

In a year, there are 4 months that have 30 days. There are 12 months in a year. For fun: Thirty days hath September, April, June and November. All the rest have thirty-one, Excepting February alone, And

answered Jun 20, 2023

2 answers 32.1k views

If a = 4b + 5 and b = 1/4^x for x = 2, 3, or 4, what is the least possible value of a ?a) 4b) 5 1/64c) 5 1/4d) 69

answered May 27, 2023

1 answer 14.8k views

What is the main concept of functional analysis?

answered May 4, 2023

2 answers 119k views

Out of 500 people sampled, 395 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids. Give your answers as decimals, to four places < p

asked Mar 2, 2023

1 answer 169k views

4. Mark's age, when doubled, is Peggy's age. Peggy is 6 years older than Chris. Chris is 6 years older than Mark. How much older is Peggy than Mark?

answered Feb 22, 2023

1 answer 176k views

How does Sherlock Holmes compare and contrast with Dr. Wastong

answered Dec 18, 2022

1 answer 221k views

When Mei solved the system of equations below, she got the solution x = 4, y = 2. Without solving the system, yourself, can you tell her whether this solution is correct? 4x + 3y = 22 x - 2y = 0 No yes

answered Dec 5, 2022

2 answers 228k views

How many wires go into an appliance

answered Nov 10, 2022

2 answers 115k views

What is a function? *

answered Oct 18, 2022

2 answers 71.6k views

What is a function? *

answered Oct 18, 2022

2 answers 71.6k views

What is a function? *

answered Oct 18, 2022

2 answers 71.6k views

They have just built this bridge .( change into negative)

answered Oct 8, 2022

2 answers 28.3k views

PLEASE ANSWER PWEASE

answered Sep 10, 2022

2 answers 73.1k views

The probability that Janice smokes is 3/10 The probability that she Smokes and develops lung cancer is 4/15 Find the probability that Janice develops lung cancer, given that she smokes.

answered Jul 9, 2022

2 answers 211k views

Mehndi art is created through the use of a paste made from the powdered dry leaves of the plant. O aloe O henna Ofern cactus

answered Jun 21, 2022

1 answer 4.6k views

Let f(x) = -8x + 4 and g(x) = 3x2 + 5. Find f(7) + g(7) .

answered May 31, 2022

1 answer 74.2k views

Which conclusion can be drawn from this passage ?

asked May 1, 2022

1 answer 140k views

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