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3 years ago

11

Which quadratic function has one real solution? 0 = 2(x + 7)(x – 5) 0 = (x – 3)(x – 3) 0 = 2.4(x – 2)(x + 2) 0 = (x – 2)(x – 1)

2 answers:

NikAS [45]3 years ago

6 0

0 = (x – 3)(x – 3)

x - 3 = 0

x = 3

Solution is x = 3 (one real solution)

Answer

0 = (x – 3)(x – 3)

emmasim [6.3K]3 years ago

6 0

Answer:

B

Step-by-step explanation:

0=2/3(x-3)(x-3)

did it on edge

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4 years ago

Suppose a box contains 3 defective light bulbs and 12 good bulbs. Two bulbs are chosen separately from the box without replaceme

Flauer [41]

Answer:

$Probability = \frac{12}{35}$

Step-by-step explanation:

Given

Represent Defective Bulbs with D and non good bulbs with G

$D = 3$

$G = 12$

The probability that one is defective and the other is not can be represented with: (D and G) or (G and D)

Which means that the defective is selected first, then the good one or the good one is selected first, then the defective one.

This is then calculated as:

$Probability = \frac{n(D}{Total} * \frac{n(G)}{Total - 1} + \frac{n(G}{Total} * \frac{n(D)}{Total - 1}$

We used Total - 1 on second selections because it is a probability without replacement

$Probability = \frac{3}{15} * \frac{12}{15- 1} + \frac{12}{15} * \frac{3}{15- 1}$

$Probability = \frac{3}{15} * \frac{12}{14} + \frac{12}{15} * \frac{3}{14}$

$Probability = \frac{1}{5} * \frac{6}{7} + \frac{2}{5} * \frac{3}{7}$

$Probability = \frac{6}{35} + \frac{6}{35}$

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3 years ago

$350 at 3% for 10 years

Mnenie [13.5K]

$350 times 3% = 10.5
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= 7(8n - m ) how do I rewrite this in distributive property?

Natalija [7]

Answer:

56n - 7m

Explanations:

Note that according to the distributive property:

a(b + c) = ab + ac

a(b - c) = ab - ac

Therefore, follow the rule above to rewrite 7(8n - m) using the distributive property.

7(8n - m) = 7(8n) - 7m

7(8n - m) = 56n - 7m

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1 year ago

The width of a rectangle is 4 inches less than its length. The perimeter of the rectangle is 12 inches what is the width

Snezhnost [94]

Let the length is x and the width is y
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3 years ago