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3 years ago

4. 5. 6. None of the choices are correct.

Mathematics

2 answers:

MariettaO [177]3 years ago

7 0

Answer:

A. 4

Step-by-step explanation:

Triangle ABD = Triangle BCD

Both hypotenuse are equal in length.

x + 2 = 3x - 6

x - 3x = -6-2

-2x = -8

x = 4

Step2247 [10]3 years ago

7 0

Hi !!

Find the value of x :

We have :

• x + 2

• 3x - 6

Match the values to find x :

x + 2 = 3x - 6

x - 3x = -6 - 2

-2x = -8

x = 8/2

x = 4

* 4 + 2 = 3(4) - 6

6 = 12 - 6

6 = 6

Equality is checked, it is an isosceles triangle

Both the correct value is 4.

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SOVA2 [1]

Answer: 8 days

Step-by-step explanation:

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3 years ago

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3 years ago

Read 2 more answers

The diameters of ball bearings are distributed normally. The mean diameter is 83 millimeters and the standard deviation is 3 mil

Alenkinab [10]

Answer:

0.2514 = 25.14% probability that the diameter of a selected bearing is greater than 85 millimeters.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

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$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

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