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
goldfiish [28.3K]
3 years ago
8

Vertical angles are congruent. Two nonadjacent angles formed by two intersecting lines are vertical angles.

Mathematics
2 answers:
Gnesinka [82]3 years ago
4 0

Answer:

A

Step-by-step explanation:

If two nonadjacent angles formed by two intersecting lines = Vertical angles= congruent

Then

Two non adjacent angles formed by two intersecting lines are congruent

igomit [66]3 years ago
4 0

Answer:

a

Step-by-step explanation:

Two non adjacent angles formed by two intersecting lines are vertical angles.

You might be interested in
If $1400 is the selling price and 10% as the profit percentage. What is the cost price and profit?
xenn [34]

Answer:

1260 is cost price and 140 is profit.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
PLEASE HELP ME CAN YOU PLEASE TELL Me WHAT RATIO MEANES IN 3 WAYS!!!! PLS NOT FROM WIKAPIDIA PLS
Anna35 [415]
Ratio means only one thing but I think what you meant was 3 examples of a ratio. In that case three examples would be: 2:3, 2 to 3, 2/3
6 0
3 years ago
The weight of an adult swan is normally distributed with a mean of 26 pounds and a standard deviation of 7.2 pounds. A farmer ra
Snezhnost [94]
Let X denote the random variable for the weight of a swan. Then each swan in the sample of 36 selected by the farmer can be assigned a weight denoted by X_1,\ldots,X_{36}, each independently and identically distributed with distribution X_i\sim\mathcal N(26,7.2).

You want to find

\mathbb P(X_1+\cdots+X_{36}>1000)=\mathbb P\left(\displaystyle\sum_{i=1}^{36}X_i>1000\right)

Note that the left side is 36 times the average of the weights of the swans in the sample, i.e. the probability above is equivalent to

\mathbb P\left(36\displaystyle\sum_{i=1}^{36}\frac{X_i}{36}>1000\right)=\mathbb P\left(\overline X>\dfrac{1000}{36}\right)

Recall that if X\sim\mathcal N(\mu,\sigma), then the sampling distribution \overline X=\displaystyle\sum_{i=1}^n\frac{X_i}n\sim\mathcal N\left(\mu,\dfrac\sigma{\sqrt n}\right) with n being the size of the sample.

Transforming to the standard normal distribution, you have

Z=\dfrac{\overline X-\mu_{\overline X}}{\sigma_{\overline X}}=\sqrt n\dfrac{\overline X-\mu}{\sigma}

so that in this case,

Z=6\dfrac{\overline X-26}{7.2}

and the probability is equivalent to

\mathbb P\left(\overline X>\dfrac{1000}{36}\right)=\mathbb P\left(6\dfrac{\overline X-26}{7.2}>6\dfrac{\frac{1000}{36}-26}{7.2}\right)
=\mathbb P(Z>1.481)\approx0.0693
5 0
3 years ago
How many four letter permutations can be formed from the first five letters of the alphabet?
Maru [420]

Answer:   120

<u>Step-by-step explanation:</u>

Permutation means that order matters.

_nP_r = \dfrac{n!}{(n-r)!}\quad \text{where n is the total \# of items and r is the quantity chosen} \\\\\text{In the given problem, n = 5 and r = 4}\\\\\\_5P_4=\dfrac{5!}{(5-4)!} = \dfrac{5\times 4\times 3\times 2 \times 1}{1}=120

8 0
3 years ago
Find the sum of (6d+5)-(2-3d)
devlian [24]
I think you have to combine like terms to solve this one. (6d - 3d) + (5 - 2) = 3d + 3
7 0
2 years ago
Other questions:
  • What number is 30% of 90​
    11·2 answers
  • Write 5,256 divided into 52 and show your work
    14·1 answer
  • If james has 4 apples and thalia has 6 apples how many apples do they have all together
    15·1 answer
  • Determine whether each number is rational or irrational
    11·1 answer
  • What is the answer to P-15=13-6p
    7·1 answer
  • I need help with numbers 7-9 please
    8·1 answer
  • A square is drawn on the coordinate plane. The endpoints of one of its sides are located at (-2,4) and (-2,-11). What is a perim
    12·1 answer
  • Factors of 9 simple question ​
    5·1 answer
  • (5126789+123434425).5
    7·1 answer
  • I need helpppppppp I don’t like remainders :/
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!