3 years ago

Algebra 2. Questions

Mathematics

2 answers:

nalin [4]3 years ago

4 0

Maybe the second one or third one

schepotkina [342]3 years ago

3 0

I think it’s either the second one or the third one, one of those

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find the approximate length of the leg of a right triangle with one leg length 8 and hypotenuse length 19

Anika [276]

So, teh exact value is sqrt( 19^2 - 8^2 ) = sqrt( 361-64) = sqrt(297).

There's people who can calculate this mentally, but I can't. Approximate by known squares: 15^2 = 225, 16^2 = 256, 17^2= 289, 18^2=324,

So, 18.

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3 years ago

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Can anyone help?! im stuck on this question...

Anit [1.1K]

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2 years ago

Solve for x: x^2 + 28x = 60

Alisiya [41]

For this case we have a quadratic equation, $x ^ 2 + 28x-60 = 0$ , of the form $ax ^ 2 + bx + c = 0$

Where:

$a = 1\\b = 28\\c = -60$

We can solve the equation by factoring, that is, we bias two numbers that multiplied give as a result -60 and added as a result 28.

These numbers are:

$+30\ and\ -2\\+ 30-2 = + 28\\+ 30 * -2 + -60$

Then, the factorization is given by:

$(x-2) (x + 30) = 0$

The roots are:

$x_ {1} = 2\\x_ {2} = - 30$

Answer:

$x_ {1} = 2\\x_ {2} = - 30$

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3 years ago

Admission to the fair costs $8.75. Each ride costs $0.50 to ride. You can spend at most $16. Write and solve an inequality to re

sergij07 [2.7K]

8.75 + 0.50 =9.25 dollars spend but she has 16 dollars so 16 - 9.25 = 6.75 dollars left

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3 years ago

Find x if the area of the rectangle below is 124 square inches. WHAT IS THE

Tomtit [17]

Answer:

Step-by-step explanation:

(6x+1)4 = 124

6x+1 = 31

x = 5

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