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Anna35 [415]
3 years ago
8

The product of 9 and t squared, increased by the sum of the square of t and 2

Mathematics
1 answer:
Paha777 [63]3 years ago
7 0

Answer:

9t^2+(t+2)^2

Step-by-Step:

t is 9 X t, or the product of 9 and t. ^2 is squared while + is increased t+2 is the sum of t and t. the ^2 after the parenthesis is indicating the "square of t and 2"

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calculate the population density of a city that occupies 2,968.7 sq.miles and has 302,143 people. Round to the nearest person pe
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302,143/2,968.7 = 101.776198336 ≈ 102 people/Sq. Mile

1. Divide the number of people by the area

2. Round to the the nearest person per Sq mile (if the number behind the number you want to round to is bigger or equal than 5 you increase the number you want to round to i. e. 2.5 ≈ 3, 2.3 ≈ 2, 1,23456 ≈ 1,235 if rounding to the third decimal point)

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3 years ago
What is the solution of this system of equations?
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3 years ago
Read 2 more answers
Algebra 2 help. Solving equations containing two radicals
Marysya12 [62]

These are 3 questions and 3 answers.

Question 1.

Answer: bot equations have the same potential solutions, but equation A may have extraneous solutions

Explanation:

1) Equation A

\sqrt{x^2+3x-6}=\sqrt{x+2}\\ \\  x^2+3x-6=x+2\\ \\  x^2+2x-8=0\\ \\  (x+4)(x-2)=0\\ \\  x=-4 ; x =2

Replace x = -4 in the right side of the equation:

\sqrt{x+2} =\sqrt{-4+2} =\sqrt{-2}

Which is not defined, so this is a extraneous solution.

2) Equation B.

Since it is a cube root, it is defined for any (negative, zero, and positive) values of x.

Question 2.

Answer: cubing both sides once.

Explanation:

\sqrt[3]{5x-2} -\sqrt[3]{4x} =0\\ \\  \sqrt[3]{5x-2} =\sqrt[3]{4x}\\  \\  (\sqrt[3]{5x-2} )^3=(\sqrt[3]{4x})^3\\  \\  5x-2=4x\\ \\  5x-4x=2\\ \\  x=2

3) Question 3.

Answer: c - 2 = 25 + c + 10√c

Explanation:

\sqrt{c-2} -\sqrt{c} =5\\ \\ \\  \sqrt{c-2} =\sqrt{c} +5\\ \\  (\sqrt{c-2})^{2}  =(\sqrt{c}+5)^2\\  \\  c-2=c+10\sqrt{c} +25\\ \\  c-2=25+c+10\sqrt{c}

4 0
3 years ago
Juan can download new songs for $1.29 each. Write an equation to show how many songs he can download for $10.00
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Answer:

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Step-by-step explanation:

He can download 7 apps.

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4 years ago
No matter how many play it, it costs $6 to bowl each game at Hollywood Bowl. A
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Answer: 27

Twenty Seven

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