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PIT_PIT [208]
3 years ago
6

Only do number 2-d please help will give brainliest please

Mathematics
1 answer:
scoray [572]3 years ago
8 0

Answer:

2d NOT a proportionate relationship

Step-by-step explanation:

s = Δy/Δx

s1 = (6 - 12) / (-3 -(-6)) = -6/3 = -2

s2 = (-6 - 6) / (3 -(-3)) = -12/6 = -2

s3 = (-10 - (-6)) / (6 - 3) = -4/3 = -4/3

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A jacket is marked down 55% off the original price. If the original price was $160.00, what is the sale price of the jacket befo
Naya [18.7K]

Answer:

72

Step-by-step explanation:

because when you do 55% out of 160 it will give you 88 which you subtract from 160 and then you will end up with 72

3 0
3 years ago
The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.725.72 millimeters and a standard de
suter [353]

Answer:

Top 5% is 5.84 milliters and the bottom 5% is 5.60 millimeters.

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 = 5.72, \sigma = 0.07

Top 5%:

X when Z has a pvalue of 0.95. So X when Z = 1.645

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

1.645 = \frac{X - 5.72}{0.07}

X - 5.72 = 1.645*0.07

X = 5.84

Bottom 5%:

X when Z has a pvalue of 0.05. So X when Z = -1.645

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

-1.645 = \frac{X - 5.72}{0.07}

X - 5.72 = -1.645*0.07

X = 5.60

Top 5% is 5.84 milliters and the bottom 5% is 5.60 millimeters.

7 0
3 years ago
Read 2 more answers
How do you round 38.25
solniwko [45]
Because its under 6 you must round it down to 38.20 if it was 38.68 for example it would be 38.70
4 0
4 years ago
Read 2 more answers
I forgot how to find the x coordinates for the intersection already :( I will be very much appreciated if I could get a step by
mr_godi [17]

In the graph,

Amplitude = 1.5 units

Period = 180°

The x-intercepts are 40°, 140°, 220°, and 320°

<h3>Determining x-intercepts </h3>

From the question, we are to determine the amplitude, period and the x-intercepts of the given graph

Amplitude is the distance from rest to crest.

In the graph,

Amplitude = 1.5 units

Period is how long from crest to crest OR trough to trough

In the graph,

Period = 180°

x-intercepts refers to the points where the graph cuts the x-axis

In the graph,

The x-intercepts are 40°, 140°, 220°, and 320°

Learn more on Determining x-intercepts here: brainly.com/question/24148225

#SPJ1

6 0
2 years ago
An item costs $440 before tax, and the sales tax is $13.20.
Ahat [919]

Answer:

3%

Step-by-step explanation:

13.2 / 440 = 0.03

0.3*100 = 3%

3 0
3 years ago
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