Please please help please please

Mathematics

1 answer:

ollegr [7]3 years ago

7 0

Answer:

Translation < - 4, - 2 >

Step-by-step explanation:

Consider the coordinates of z(5, - 1) and z'(1, - 3)

translation is < 1 - 5, - 3 - (- 1) > = < - 4, - 2 >

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I really need help with this question

OLga [1]

Answer:

2pin1,n€Z

2pin2+pi,n2€Z

Step-by-step explanation:

maybe, but I'm not sure

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3 years ago

Of the 400 vehicles that passed the intersection 98 are buses what percent of the vehicles passed the intersection are buses

Pepsi [2]

98/400=49/200=24.5/100=24.5%
answer is 24.5%

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4 years ago

A bakery needs to make 7 batches of muffins before opening in 4 hours. Each batch of muffins takes 2/3 hour to bake.

Evgen [1.6K]

To find 2/3 of an hour you need to spilt the hour up so you’d say each third is 20 minutes therefore, each batch of muffins takes 40 minutes, so 40*7 you get 280 and divided by 60 it’s 4.6. I don’t know what the question is exactly asking for but they will be a little bit behind schedule with their muffins

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3 years ago

Read 2 more answers

In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on 1170 vehicles. There are a

Murrr4er [49]

Answer:

The first quartile of the distribution of gas mileage is 19.6925 mpg.

Step-by-step explanation:

Problems of normally distributed samples can be solved using 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 problem, we have that:

$\mu = 23, \sigma = 4.9$

What is the first quartile of the distribution of gas mileage?

The first quartile has a proportion of 0.25. So this is the value of X when Z has a pvalue of 0.25. It happens between Z = -0.67 and Z = -0.68, so i am going to use $Z = -0.675$