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3 years ago

The fastest that a seahorse can travel is 2,640 feet per hour. What is its top speed in miles per hour?

Mathematics

2 answers:

Verizon [17]3 years ago

4 0

Answer:

0.5 miles per hour

Step-by-step explanation:

KiRa [710]3 years ago

3 0

There are 5280 feet in a mile. Knowing this, we can make the conversion from 2640 feet per hours to miles per hour:

(2640/5280)/1 hour = 0.5 miles / hour

-T.B.

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

What are the solutions of x^2 - 2x + 10 = 0?

dybincka [34]

Answer:

C. x = 1 + 3i or x = 1 - 3i

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Algebra II

Imaginary Roots: √-1 = i

Step-by-step explanation:

Step 1: Define

x² - 2x + 10 = 0

Step 2: Identify Variables

a = 1

b = -2

c = 10

Step 3: Find roots

Substitute [Quad Formula]: $x=\frac{2\pm\sqrt{(-2)^2-4(1)(10)} }{2(1)}$
Exponents: $x=\frac{2\pm\sqrt{4-4(1)(10)} }{2(1)}$
Multiply: $x=\frac{2\pm\sqrt{4-40} }{2}$
Subtract: $x=\frac{2\pm\sqrt{-36} }{2}$
Factor: $x=\frac{2\pm\sqrt{-1} \sqrt{36} }{2}$
Simplify: $x=\frac{2\pm6i }{2}$
Factor: $x=\frac{2(1\pm3i) }{2}$
Divide: $x=1\pm3i$

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3 years ago

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LuckyWell [14K]

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