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djyliett [7]
3 years ago
10

Question 2.

Mathematics
1 answer:
eimsori [14]3 years ago
4 0

Answer:

ss

Step-by-step explanation:

sas

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what is the general equation of cosine function with a amplitude of 3 a period of 4pi and a horizontal shift of - pi
kicyunya [14]
The general form of such an equation will be
f(x)=A\cos\left(\dfrac{2\pi(x-B)}{C} \right)+D
where
  A = amplitude (3)
  B = horizontal shift to the right (-π)
  C = period (4π)
  D = vertical offset (0)

Your equation will be ...
f(x)=3\cos\left(\dfrac{x+\pi}{2}\right)

4 0
3 years ago
Read 2 more answers
Name the following triangles please....​
Naily [24]

Answer:

  1. Equilateral Triangle
  2. Right angle triangle
  3. Isosceles triangle

Step-by-step explanation:

hope it helps....

8 0
3 years ago
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The mean weight of frozen yogurt cups in an ice cream parlor is 8 oz.Suppose the weight of each cup served is normally distribut
vaieri [72.5K]

Answer:

10.03% probability of getting a cup weighing more than 8.64oz

Step-by-step explanation:

Problems of normally distributed samples are 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 question, we have that:

\mu = 8, \sigma = 0.5

What is the probability of getting a cup weighing more than 8.64oz

This is the 1 subtracted by the pvalue of Z when X = 8.64. So

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

Z = \frac{8.64 - 8}{0.5}

Z = 1.28

Z = 1.28 has a pvalue of 0.8997

1 - 0.8997 = 0.1003

10.03% probability of getting a cup weighing more than 8.64oz

4 0
3 years ago
In order to test whether the average waiting time this year differs from last year, a sample of 25 data were collected this year
irina [24]

Answer:

True

Step-by-step explanation:

Confidence interval for banking service in a given confidence level can be calculated as  M±ME where

  • M is the mean banking service in the sample and
  • ME is the Margin of Error

margin of error (ME) is calculated using the formula

ME=\frac{t*s}{\sqrt{N} } where

  • t is the corresponding statistic in the given confidence level
  • s is the standard deviation of the sample(or of the population if it is known)
  • N is the sample size

t-statistic for 99% confidence level is always bigger than 95% confidence level which makes Margin of Error bigger and thus confidence interval wider.

6 0
4 years ago
A box is filled with 6 blue cards, 4 yellow cards and 8 green cards. A card is chosen at random from the box. What is the probab
Inessa05 [86]
77% chance or 14/18 would be the answer of probability of blue or green card.
3 0
4 years ago
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