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3 years ago

What are the rate of growth or decay, r, and the initial amount, A?

1 answer:

8 0

Exponential word problems almost always work off the growth/decay formula, A = Pert, where "A" is the ending amount of whatever you're dealing with (money, bacteria growing in a petri dish, radioactive decay of an element highlighting your X-ray), "P" is the beginning amount of that same "whatever", "r" is the growth

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Conor and Jake's lunch cost 13.00. They left a 15% tip. How much did they leave?

notsponge [240]

1 dollar 95 cents is how much they left

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2 years ago

AHHHHHH HELPPPPPPPPPPPPPP TIMED I’ll give brainliest

Delicious77 [7]

Answer:

D. (2, 6)

General Formulas and Concepts:

Algebra I

Solving systems of equations by graphing

Step-by-step explanation:

The solution set of the systems would be where the 2 lines intersect. We see from the graph that our 2 lines intersect at (2, 6). Therefore, our solution set would be D. (2, 6).

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2 years ago

An equation whose variables are polar coordinates is called a ____________

Murljashka [212]

An equation whose variables are polar coordinates is called a polar equation. These equation are characterized by an r as a function an angle. Polar equations can be written in rectangular coordinates by certain relationships. An example of a polar equation would be r = 2sin∅.

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3 years ago

Read 2 more answers

What conditions must hold for a probability distribution to be acceptable?

VashaNatasha [74]

A distribution of probabilities is a numerical means of describing all unique combinations and the probabilities for a provided random variable, and the further discussion can be defined as follows:

The distributions mean (average), basic difference, skewness, as well as courtesies, are among such factors.
A formula, table, or chart can show a probability distribution for discrete probability distribution X that providing $\bold{p(x) = P(X=x)}$ for all x.
For just a discrete random variable, the probability assigns annual probabilities with only a countless multitude of unique x values.
Each result is likely to be between 0 and 1, including.

Therefore, the final choice is "Option A".

Learn more:

brainly.com/question/15848153

3 0

2 years ago

Jackie deposited $315 into a bank account that earned 1.5% simple interest each year.

Brrunno [24]

Answer:

copied from InesWalston expert

Money in the bank account after 3 years will be $329.18

Step-by-step explanation:

Jackie deposited $315 into a bank account that earned 1.5% simple interest each year for 3 year, while no money was deposited into or withdrawn from the account.

We know that,

i = p.r.t / 100

Where,

i = interest

P = Principal = $315

r = Rate of interest = 1.5% annual

t = time period = 3 years

Putting the values,

i = 315 × 1.5 × 3 / 100 = $14.18

Total money in bank account = Principal + interest = 315 + 14.18 = $329.18

3 0

2 years ago