All categories

3 years ago

A right triangle has an angle that measures 45 what is the measures of rhe thrid angle

2 answers:

7 0

The sum of the measures of the angles of a triangle is
180 degrees.

Let x = our unknown angle

A right angle has measure 90 degrees.

We have x + 90 + 40 = 180 so
x + 130 = 180 and x = 50

erma4kov [3.2K]3 years ago

4 0

The answer is the third angle is 90 degrees

You might be interested in

I need answers please.

Lena [83]

Answer:

1) 477.5

2) 395.8

3) 2042.0

4)132.7

5) 44.1

6) 437.9

Step-by-step explanation:

Surface area of a cylinder = 2(pi)(r)(h) + 2 (pi)(r)^2

Lateral area of a cylinder = 2 (pi)(r)(r)

7 0

4 years ago

2y-3x=-14 can you figure it out

ahrayia [7]

-3x + 2y = 14
You this way to solve it

8 0

3 years ago

Let x denote the courtship time for a randomly selected female–male pair of mating scorpion flies (time from the beginning of in

gavmur [86]

Complete Question:

a) Is it plausible that X is normally distributed?

b) For a random sample of 50 such pairs, what is the (approximate) probability that the sample mean courtship time is between 100 min and 125 min?

Answer:

a) It is plausible that X is normally distributed

b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269

Step-by-step explanation:

a)X denotes the courtship time for the scorpion flies which indicates that is a real - valued random variable, and since normal distribution is a continuous probability distribution for a real valued random variable, it is plausible that X is normally distributed.

b) Probability that the sample mean courtship time is between 100 min and 125 min

$\mu = 120\\n = 50$

$P(x_{1} < \bar{X} < x_{2} ) = P(z_{2} < \frac{x_{2}- \mu }{SD} ) - P(z_{1} < \frac{x_{2}- \mu }{SD})$

$SD = \sqrt{\frac{\sigma^{2} }{n} } \\SD = \sqrt{\frac{110^{2} }{50} } \\SD = 15.56$

$P(100 < \bar{X}$

From the probability distribution table:

$P(z_{2} < 0.32 ) = 0.6255\\ P(z_{1} < -1.29) = 0.0986$

$P(100 < \bar{X}$

6 0

3 years ago

Are congruent triangles also similar?

jonny [76]

Answer: yes they are

Step-by-step explanation:

If two pairs of corresponding angles in a pair of triangles are congruent, then the triangles are similar. We know this because if two angle pairs are the same, then the third pair must also be equal.

7 0

3 years ago

Read 2 more answers

Kelvin divides 3 pieces of paper into fourths. how many fourths does he have

-Dominant- [34]

Answer:

Step-by-step explanation:

3 x 4 = 12

5 0

3 years ago