1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
snow_tiger [21]
3 years ago
10

In triangle XYZ, m∠Z > m∠X + m∠Y. Which must be true about △XYZ?

Mathematics
2 answers:
valentinak56 [21]3 years ago
8 0

Answer:

angle X + angle Y < 90°

Step-by-step explanation:

sum of angles of triangle is 180 ° ,

WINSTONCH [101]3 years ago
3 0

Answer:

because mZ > mX + mY

=  > 18 0 - (mx + my) > mx + my \\  <  =  > 2(mx + my) < 180 \\  <  =  > mx + my < 90

You might be interested in
PLEASE HURRY.
hichkok12 [17]

Answer:

i think B.

Step-by-step explanation:

Hope this helps :p

6 0
3 years ago
suppose X and Y are independent random variables, both with normal distributions. If X has a mean of 45 with a standard deviatio
djyliett [7]

Answer:

0.9772 = 97.72% probability that a randomly generated value of X is greater than a randomly generated value of Y

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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.

In this question:

\mu_X = 45, \sigma_X = 4, \mu_Y = 35, \sigma_Y = 3

What is the probability that a randomly generated value of X is greater than a randomly generated value of Y

This means that the subtraction of X by Y has to be positive.

When we subtract two normal variables, the mean is the subtraction of their means, and the standard deviation is the square root of the sum of their variances. So

\mu = \mu_X - \mu_Y = 45 - 35 = 0

\sigma = \sqrt{\sigma_X^2+\sigma_Y^2} = \sqrt{25} = 5

We want to find P(X > 0), that is, 1 subtracted by the pvalue of Z when X = 0. So

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

Z = \frac{0 - 10}{5}

Z = -2

Z = -2 has a pvalue of 0.0228

1 - 0.0228 = 0.9772

0.9772 = 97.72% probability that a randomly generated value of X is greater than a randomly generated value of Y

4 0
3 years ago
If x=y then what does y=x equals? I will give you brainliest if you help me.
MissTica
Yes because they're the same
4 0
3 years ago
Read 2 more answers
Literal equations 2x-3y=8 solve for y
vichka [17]
2x-3y = 8

Add 3y on both sides

2x = 8 + 3y

Subtract 8 on both sides

3y = 2x - 8

Divide 3 on both sides

y= \frac{2}{3}x- \frac{8}{3}
4 0
3 years ago
Read 2 more answers
Find the value of x for the given triangle
11Alexandr11 [23.1K]

Answer:

5

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • There are 80 students in a school. Every student is taking either algebra or pre-calculus, and some students are taking both. Th
    15·1 answer
  • Which pair of numbers are not opposites? Select one: a. |7||7| and -7 b. 27 and |27||27| c. 72 and -72 d. 27 and -27
    13·1 answer
  • The product of 9 and a number....Into mathematical expression
    5·2 answers
  • 75,000 people went to watch the Huston Dynamos play Los Angeles Galaxy in the US Open final Cup At half time, Huston Dynamos wer
    11·1 answer
  • Please help ASAP !!15 points!!
    10·1 answer
  • Why Do i SUCK AT MATH!!!!!!!!!!!!!!!!! :(
    9·1 answer
  • Solve the following inequality: 10t + 7 , 200 &gt; 21 , 000
    6·1 answer
  • What is the answer to 50.25 times x
    13·2 answers
  • James is following this recipe to make flapjacks.
    10·1 answer
  • Find the unknown length x in the right triangle, to the nearest tenth.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!