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3 years ago

Please help me. This is due tomorrow

Mathematics

2 answers:

alukav5142 [94]3 years ago

5 0

The answer for the blank space in the table is 29. As you can see, there is a pattern. The number of children for the first one is 3. Double three and it is six, add one to six and you get seven.
Third one: the number of kids is 9. Double nine and it is eighteen. Add one to eighteen it is nineteen. And so on.
Hope I helped!! (Please give me brainliest answer!!)
❤️- Alishba

IRISSAK [1]3 years ago

3 0

The picture is upside down my dude, delete the question, re-upload it and ill help you out.

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Suppose a simple random sample of size n = 14 is obtained from a population with μ = 61 and σ = 17.

sergejj [24]

Answer:

C. The population must be normally distributed.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For us to apply the central limit theorem with a sample size of 14, the underlying population must be normally distributed.

So the correct answer is:

C. The population must be normally distributed.

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3 years ago

In ΔXYZ, x = 8.3 meters, y = 9 meters, and z = 15 meters. Find the remaining measurements of the triangle, and round your answer

laila [671]

Answer:

The correct answer is B. ∠X = 28.6°, ∠Y = 31.2°, ∠Z = 120.2°

Step-by-step explanation:

Let's recall that for solving a SSS triangle, we :

1. Use the Law of Cosines first to calculate one of the angles

2. Use The Law of Cosines again to find another angle

3. Finally use angles of a triangle add to 180° to find the last angle.

1. Cos x = (9² + 15² - 8.3²/2 * 9 * 15)

Cos x = (81 + 225 - 68.89/270)

Cos x = 0.878

x = Cos ⁻¹ (0.878)

x = 28.6° (rounding to the next tenth)

2. Cos y = (8.3² + 15² - 9²/2 * 8.3 * 15)

Cos y = (68.89 + 225 - 81/249)

Cos y = 0.855

x = Cos ⁻¹ (0.855)

x = 31.2° (rounding to the next tenth)

3. z = 180 - 31.2 - 28.6

z = 120.2°

The correct answer is B. ∠X = 28.6°, ∠Y = 31.2°, ∠Z = 120.2°

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4 years ago

Line A passes through the points (1, -1) and (-2, 8).

Viefleur [7K]

The answer to this question will be D

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3 years ago

The monthy net gains sales for a new sporting goods store were: $7195, $1484, $3224, $8807, $7185, $1730, $2573, $7071, $5360, S

brilliants [131]

Answer:

$7,185 see below ↓

explanation:

With median, it is about the number that appears the most, and since the closest it gets is between $7,071 and $7,195, we have to pick the number that averages in-between which in this case is 7,185.

Below, this ↓ array proves the logic.

$\left[\begin{array}{ccc}7195&7185&7071\end{array}\right]$

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3 years ago

50 US states for the namethat start with the letter W what percent of US states have the names that start with the letter W

Vanyuwa [196]

Washington, West Virginia, Wisconsin, Wyoming
Four states out of 50
4 / 50 * 100 = 8 per cent.

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3 years ago