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nikdorinn [45]
3 years ago
5

What is the name of the relationship between ∠1 ​ and ∠5?

Mathematics
1 answer:
kompoz [17]3 years ago
7 0

Answer:

Two lines are crossed by another line (called Transversal), the angles in matching corners are called corresponding angles. There are two parallel lines interest by the Transversal and ∠1 ​ and ∠5 are made on the matching corners . Thus ∠1 ​ and ∠5 are the corresponding angles .

Step-by-step explanation:

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Please help question is in the image
marta [7]

Answer: Hope this helps you! (I cant fill in the blank since  can't see the choices.)

-4d = 20

d = -5

Step-by-step explanation:

-4d - 18 = 2

+18              +18

-4d = 20

/-4         /-4

d = -5

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2 years ago
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U= a-k-b solve for a
irina [24]

Answer:

a = b + k + u

Step-by-step explanation:

hope this helps

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Find the common ratio of the geometric sequence -2, 6, -18, ...
lara [203]

Answer:

-3

Step-by-step explanation:

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3 years ago
Data are drawn from a bell-shaped distribution with a mean of 25 and a standard deviation of 4. There are 1,000 observations in
Delicious77 [7]

Answer:

a. 97.72% of the observations are less than 33

b. Approximately 977 observations are less than 33.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 25 and a standard deviation of 4.

This means that \mu = 25, \sigma = 4

a. Approximately what percentage of the observations are less than 33?

The proportion is the p-value of Z when X = 33. So

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

Z = \frac{33 - 25}{4}

Z = 2

Z = 2 has a p-value of 0.9772

0.9772*100% = 97.72%

97.72% of the observations are less than 33.

b. Approximately how many observations are less than 33?

Out of 1000:

0.9772*1000 = 977.2

Approximately 977 observations are less than 33.

6 0
2 years ago
If you flip a coin 44 times what is the best prediction possible for the number of times it’ll land on heads
nika2105 [10]

Answer:

12% chance of 22

35% chance of 21, 22, or 23

55% chance of 20, 21, 22, 23, or 24


How can 22 be a good prediction when it's wrong 88% of the time?


I'd say from 20 to 24 is a good prediction without being trivial.


Step-by-step explanation:

C(n,k) = n Choose k = n! / (k! (n-k)!)

aka binomial coefficient

aka from n things choose k


To get probability of getting heads 22 times in 44 tries, you divide number of ways to get heads 22 times by number of ways to assign heads or tails to each throw.


Two ways to assign H or T to first, times two ways for second throw,

gives 2^44. That's the denominator.


Number of ways to get heads 22 times is the same as number of ways to choose which 22 flips of 44 are to be heads, or C(44,22)


To get 12% calculate C(44,22)/2^44

To get 55% calculate C(44,20)/2^44 + ... + C(44,24)/2^44


8 0
3 years ago
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