Find the measure of BDC

Mathematics

2 answers:

s2008m [1.1K]3 years ago

3 0

Answer:

68 degrees

Step-by-step explanation:

You can tell by the picture that this is a right angle. All right angles add up to be 90 degrees. Since one of the angles is labeled, all you would do is subtract that from 90.

90-22=68

Hope this helped! Please mark brainiest!

BartSMP [9]3 years ago

3 0

68 degrees is the correct answer

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The following are questions from a self-quiz.According to some study, the height for Northern European adult males is normally d

lara [203]

Answer:

a) 0.064

b) 0.109

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 181 centimeter

Standard Deviation, σ = 7.3 centimeter

We are given that the distribution of height for Northern European adult males is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(person is between 160 and 170 centimeters)

$P(160 \leq x \leq 170) = P(\displaystyle\frac{160 - 181}{7.3} \leq z \leq \displaystyle\frac{170-181}{7.3}) = P(-2.8767 \leq z \leq -1.506)\\\\= P(z \leq -1.506) - P(z < -2.8767)\\= 0.066 -0.002 = 0.064 = 6.4\%$