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maks197457 [2]
3 years ago
9

Any two normal curves are the same except for their Multiple Choice standard deviations. means. standard deviations and means. s

tandard deviations, means, skewness, and kurtosis.
Mathematics
1 answer:
Neko [114]3 years ago
7 0

Answer:

Standard deviation, means, skewness and kurtosis.

Step-by-step explanation:

Two normal curves may be same but they have different means, standard deviation and skewness. There can be different standard deviation for two curves and there is difference in skewness.

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John is x years old and his sister Mary is (5x-12) years old. Given that Mary is twice as old as John, write in terms of x an eq
jeka57 [31]
Answer: x =4
Mary is 8 and John is 4

Explanation:
John = x
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Solve for x

5x - 12 = 2x

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X=4

Hope that helps!
3 0
3 years ago
In ΔDEF, the measure of ∠F=90°, FE = 21, DF = 20, and ED = 29. What is the value of the cosine of ∠E to the nearest hundredth?
luda_lava [24]

Answer:

43.60°

Step-by-step explanation:

We can solve the triangle using the trigonometrical ratios which may be expressed in the form SOA CAH TOA Where,

Sin Ф = opposite side/hypotenuses side

Cosine Ф = adjacent side/hypotenuses side

Tangent Ф = opposite side/adjacent side

The hypotenuse is the side facing the right angle while the opposite is the side facing the given angle.

Considering triangle ΔDEF, where ∠F=90°, FE = 21, DF = 20, and ED = 29

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Cosine ∠E = 21/29

∠E = cos-1 0.724137931

∠E = 43.60° to the nearest hundredth

8 0
3 years ago
Read 2 more answers
From the sum of 3a²-a-3 and 2a-9,subtract a²-3a-7
ANEK [815]
The sum of 3a²-a-3 and 2a-9 is 3a²+a-12

3a²+a-12 - (a²-3a-7) = 3a²+a-12 - a² + 3a + 7 = 

2a² +4a - 5
8 0
3 years ago
Which ordered pair is a solution to the linear inequality below? X + 4y < 4
Scilla [17]

Answer:

A

Step-by-step explanation:

Hopefully this helps

5 0
3 years ago
(a) what is the distance from the sun to mercury written in scientific notation?
IRINA_888 [86]
<span>35.98 million mi

which becomes 3.598 x 10 ^7</span>
5 0
3 years ago
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