RT and UW are parallel lines. Which angles are vertical angles? help asap

Mathematics

1 answer:

Leviafan [203]3 years ago

5 0

Answer:

139 degrees

Step-by-step explanation:

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The height of an adult male is known to be normally distributed with mean of 175 cm and standard deviation of 6 cm. The 20th per

dusya [7]

Answer:

The height below which 20% of the persons lie equals 169.95 cm

Step-by-step explanation:

Given that

Mean height = 175 cm

Standard deviation = 6 cm

Hence for the given question we need to find the standard variate factor ( Z factor) corresponding to the 20% of the area under the standard normal distribution curve

Using the standard normal distribution tables we have Z factor corresponding to an area of 20% equals ( Z = -0.84166)

Thus we have

$Z=\frac{X-\bar{X }}{\sigma }\\\\\Rightarrow -0.84166=\frac{X-175}{6}\\\\\therefore X=-0.84166\times 6+175\\\\X=169.95cm$

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4 years ago

A student is trying to construct triangles using four different sets of angles. Th angles in each set are given below. Which set

sladkih [1.3K]

Well I can't be for sure but I know for a fact its not set IV it's not possible to make a triangle out of all right angles. Set II, well, that isn't right either. You can't make a triangle out of all obtuse angles. Like the right angle one, its not possible you can only use one obtuse or right angle in a triangle other wise it's not going to be a triangle. I'd say go try Set III since that would most likely make an equilateral triangle.

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3 years ago

Find the value of x in the isoscleles triangle sqrt45 and altitude 3

Alisiya [41]

Answer:

$c.\hspace{3}x=12$

Step-by-step explanation:

Isosceles triangles are a type of triangles in which two of their sides have an identical length. It should be noted that the angles opposite the sides that are the same length are also the same. This means that these triangles not only have two equal sides, but also two equal angles.

You can solve this problem using different methods, I will use pythagorean theorem. First take a look at the picture I attached. As you can see:

$x=2a$