2 years ago

Which angles of the triangles measure 90°?

Mathematics

2 answers:

Dvinal [7]2 years ago

7 0

Answer:

Angle D and B are 90 degree angles.

Step-by-step explanation:

xxMikexx [17]2 years ago

6 0

<EDA <ABC is da ones

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What is the value of a?

Elan Coil [88]

Note that the interior angles must add up to 180 degrees: 50+62+m<C = 180.
Then 112 + m<C = 180, so that m<C =68 degrees.

Use the Law of Sines to find the value of a, as follows:

sin 50 deg sin 62 deg
-------------- = ----------------
a 31 cm
31sin 50 31(0.766)
Then 31sin 50 = a*sin 62, and a = --------------- = ---------------- = 26.9 cm
sin 62 0.883

a =

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3 years ago

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n the description of the following experiment, determine the experimental factor. A pharmaceutical company conducted an experime

arlik [135]

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Step-by-step explanation:

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1 year ago

The number of days that homes stay on the market before they sell in Houston is bell-shaped with a mean equal to 56 days. Furthe

antoniya [11.8K]

Answer:

D. 8

Step-by-step explanation:

We have been given that the number of days that homes stay on the market before they sell in Houston is bell-shaped with a mean equal to 56 days. Further, 95 percent of all homes are on the market between 40 and 72 days.

As per empirical rule 95% of the data on bell curve lies between 2 standard deviations of mean.

So we can set an equation as:

$72-56=2\sigma$ or