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3 years ago

Which of the following equations have exactly one solution?

Mathematics

1 answer:

lukranit [14]3 years ago

3 0

Answer: B) 6x - 6 = 15x + 15

Step-by-step explanation:

To find our answer, we need to first work out each equation.

A) 6x - 15 = 6x + 15

First, cancel out the equal terms.

6x - 6x - 15 = 15

-15 = 15

This statement is false.

B) 6x - 6 = 15x + 15

-9x = 21

x = -7/3

<u>This statement has one solution. </u>

C) 6x - 6 = 6x + 15

-6 = 15

This statement is false.

D) 6x + 15= 6x + 15

15 = 15

This statement has infine solutions.

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7 kilometers - meters

TiliK225 [7]

Answer:

7000

Step-by-step explanation:

Because kilo means a thousand so for example 1kg=1000g

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3 years ago

Consider an assembly line with 20 stations. Each station has a 0.5% probability of making a defect. At the end of the line, an i

vova2212 [387]

The answer is 0.4%. The probability that a unit end in a rework can be calculated using the following equation:

P(rework)= P(defects found) * P(defect)
= .8 * .005
= .004
= 0.4%

Thank you for posting your question. Feel free to ask me more.

6 0

3 years ago

Find D

Snowcat [4.5K]

Answer:

b. < D = 64°

I hope this helps

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3 years ago

Read 2 more answers

Which of the following is equivalent to ^5sqrt13^3

mrs_skeptik [129]

Answer:

The last one 13^3/5

Step-by-step explanation:

13^3/5

8 0

3 years ago

Unit sales for new product ABC have varied in the first seven months of this year as follows: Month Jan Feb Mar Apr May Jun Jul

Alecsey [184]

Answer:

$\sigma = 121.53$

Step-by-step explanation:

Required

The population standard deviation

First, calculate the population mean

$\mu = \frac{\sum x}{n}$

This gives:

$\mu = \frac{148+ 329+ 491 +167+ 228+285+ 441}{7}$

$\mu = \frac{2089}{7}$

$\mu = 298.43$

The population standard deviation is:

$\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}$

So, we have:

$\sigma = \sqrt{\frac{(148 - 298.43)^2 + ..........+ (441- 298.43)^2}{7}}$

$\sigma = \sqrt{\frac{103387.7143}{7}}$

$\sigma = \sqrt{14769.6734714}$

$\sigma = 121.53$

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3 years ago