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4 years ago

What are the roots of the quadratic equation X² + 4X + 4. How many roots are there.

1 answer:

3 0

If we set the equation equal to 0, we can factor it to find its roots:

x² + 4x + 4 = 0
(x + 2)(x + 2) = 0
x = -2

This graph has one root, a double root, at -2. This means that a single point, which must be the vertex of the parabola, touches the x-axis at (-2, 0)

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What is the approximate percent decrease when a fish count goes down from 850 to 500?

Ad libitum [116K]

To get this, you divide the smaller number by the larger one and get 0.5882... 500 is about 59% of 850, so to find the percent lost, you subtract that from 100 to get 41% decrease

8 0

4 years ago

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Simplify. 5√ 10 <br> 1) 2√ 2) 2√2 3) 10√2 4) 5√

Nataly_w [17]

For this case we have that the expression in its exact form is the same, that is:

$5 \sqrt {10}$

If it is expressed in decimal form we have:

$5 \sqrt {10} = 1.5849$

If we want equivalent expressions, we must first mention the following property of powers and roots:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

Then, we can rewrite the expression as:

$5 \sqrt {10} = \sqrt {5 ^ 2 * 10} = \sqrt {25 * 10} = \sqrt {250}$

Answer:

$5 \sqrt {10} = \sqrt {250} = 1.5849$

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3 years ago

What is the inverse of Y=-5x-7

Pepsi [2]

Answer:y = - 5x - 7

Step-by-step explanation:The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

here m = - 5 and b = - 7, hence

y = - 5x - 7 ← equation of line

7 0

3 years ago

0 ÷ 0 = 1

TEA [102]

Answer:

0/0 = undefined not 1

Step-by-step explanation: Undefined means there are no solutions possible for the operations in view. The example in question is itself wrong. n/0 is infinite but not undefined. 0/0 is undefined

7 0

2 years ago

⚠️⚠️⚠️help⚠️⚠️⚠️⚠️⚠️

Naddika [18.5K]

The second one should be the answer

7 0

3 years ago

Read 2 more answers