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3 years ago

A person is going to fly from New York to Rio de Janeiro. If he leaves at 1:00 p.m., Eastern Standard Time and the filght

Mathematics

1 answer:

vesna_86 [32]3 years ago

8 0

Answer:

8:30

Step-by-step explanation:

At 12:00 (noon) In New York, It is 2:00 pm in Rio De Janerio.

That if he left at 1 in NY it would've been 3 in Rio, 3+5.5=8.5

Which is 8:30 pm. Hope this helped!!

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Evaluate the expression when X= -2 x^2 + 9x + 3

TiliK225 [7]

Answer:

-11

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

x² + 9x + 3

x = -2

Step 2: Evaluate

Substitute in x: (-2)² + 9(-2) + 3
Exponents: 4 + 9(-2) + 3
Multiply: 4 - 18 + 3
Subtract: -14 + 3
Add: -11

3 0

2 years ago

F ( x ) = -x^3 + 3x^2 + 4x -5 x = -3 Answear ?

Ivan

Answer: u spelt answer wrong f ( x f ( x ) = -x^3 + 3x^2 + 4x -5 x = -3

Step-by-step explanation:

7 0

3 years ago

Solve the proportion using equivalent ratios. Explain the steps you used to solve the proportion, and include the answer in your

NikAS [45]

10x=60
x=6
10/3=20/6
^^^^^^^^^^^^

7 0

2 years ago

Read 2 more answers

If f(x) = -2x^2 + 1 and g(x) = 3x, evaluate f(x) / g(x) for x = 2

adelina 88 [10]

I think that the answer is A.

3 0

3 years ago

Brainliest + 20 points to whoever helps!!!

Darya [45]

Answer:

D. The standard deviation is known and n > 30.

Step-by-step explanation:

Your sample size is greater than 30.
Data points should be away from each other.
Your data should be commonly categorized.
Your data should be randomly picked from a population. Each item should have an equal chance of being selected.
The sample sizes should be equal.

8 0

3 years ago