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2 years ago

Please help me finish these answers, I am not finding any thing to really help me out

Mathematics

1 answer:

Mandarinka [93]2 years ago

5 0

Answer:

Step-by-step explanation:

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Is square meters a type of surface area

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Yes square meters is a type of surface area.

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3 years ago

Pleaseeeeeeee help me

Juli2301 [7.4K]

Answer:

The answer is "The discriminant is positive"

Step-by-step explanation:

When the discriminant is positive there is two real solutions.

When the discriminant is equal to 0, there is one real solution.

When the discriminant is negative, there is no real number solutions.

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2 years ago

Round this number to near 1000. 72,282

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3 years ago

6x + 9 < 63<br> what is x?

Natalija [7]

6x + 9 < 63

Subtract 9 from both sides.

6x < 54

Divide 6 by both sides.

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2 years ago

Read 2 more answers

Suppose the speeds of vehicles traveling on a highway are normally distributed and have a known population standard deviation of

erik [133]

Answer:

2.88

Step-by-step explanation:

Data provided in the question

$\sigma$ = Population standard deviation = 7 miles per hour

Random sample = n = 32 vehicles

Sample mean = $\bar X$ = 64 miles per hour

98% confidence level

Now based on the above information, the alpha is

= 1 - confidence level

= 1 - 0.98

= 0.02

For $\alpha_1_2$ = 0.01

$Z \alpha_1_2$ = 2.326

Now the margin of error is

$= Z \alpha_1_2 \times \frac{\sigma}{\sqrt{n}}$

$= 2.326 \times \frac{7}{\sqrt{32}}$

= 2.88

hence, the margin of error is 2.88

5 0

3 years ago