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Helen [10]
2 years ago
14

What is one value of x that makes the equation-16x^2+121=0 true

Mathematics
1 answer:
jeyben [28]2 years ago
8 0

Answer:

x = ±11/4

Step-by-step explanation:

Rewrite -16x^2+121=0 as 16x^2 - 121=0 and then as 16x^2 = 121.

Take the square root of both sides.  This returns 4x = ±11, and so:

x = ±11/4

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Answer:

Divide by 3 on both sides.

Step-by-step explanation:

Original Expression: 3(x+2) = 12

Divide by 3 on both sides: x+2 = 4

Subtract 2 from both sides: x=2

Let me know if this helps!

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Is 2 to the power of 3 bigger then the square root of 5?
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Answer:

Yes.

Step-by-step explanation:

Let's write out each problem:

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Now that we have both answers to each expression, we can tell that 2^3, in fact, is larger than the square root of 5.

So your answer is, "Yes, 2^3 is bigger than the square root of 5.

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2 years ago
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MatroZZZ [7]

Answer:

$2,226.96

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You are going to want to use the compound interest formula, which is shown below.

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<em>P = initial balance </em>

<em>r = interest rate </em>

<em>n = number of times compounded annually </em>

<em>t = time </em>

<em />

First, change 10% into its decimal form:

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Now lets plug in the values into the equation:

A=500(1+\frac{0.1}{12})^{15(12)}

A=2,226.96

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