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2 years ago

15

The number of fish in a lake is growing exponentially. The table shows the values, in thousands, after different numbers or year

s
since the population was first measured.

1 answer:

Nana76 [90]2 years ago

4 0

Answer: 15

Step-by-step explanation: in 2 years its population grows by 30 so you divide that by 2 and you get 15.

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Solve the quadratic equation below for the exact values of x.<br><br> 4x² - 5 = 75

vfiekz [6]

Answer:

x = ±2√5

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

Terms/Coefficients
Multiple Roots

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

4x² - 5 = 75

<u>Step 2: Solve for </u><em><u>x</u></em>

[Addition Property of Equality] Add 5 on both sides: 4x² = 80
[Division Property of Equality] Divide 4 on both sides: x² = 20
[Equality Property] Square root both sides: x = ±2√5

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