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4 years ago

Please help! John-Mark recorded the stats for several baseball pitchers. He made a scatterplot showing the

Mathematics

1 answer:

anastassius [24]4 years ago

8 0

Answer: Third Option

$y = -10x + 110$

Step-by-step explanation:

The equation of a line in the pending intersection form has the following form:

$y=mx +b$

Where m is the slope of the line and b is the intersection with the y axis.

Observe in the graph that the data form a decreasing line. Then the adjustment line must have a negative slope $m$ .

The first and the second option have positive slopes, therefore we discard them.

Notice in the scatter diagram that the intersection of the line with the y-axis (x = 0) is above 90.

The line of the fourth option has a value of $b = -110$ .

Therefore the line that best fits the data is the third option

$y = -10x + 110$

Note that the line has a slope $m = -10$ and a value of $b> 90$

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3 years ago

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3 years ago

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population

postnew [5]

Answer:

We have been given confidence interval 95%, mean 20 , data set 30 and standard deviation 3.

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4 years ago

a candy necklace is extended from the top of a 10-foot ice cream cone to the ground. The necklace makes a 55 degree angle of the

Finger [1]

Answer:

The length of the necklace is 12.20 foot

Step-by-step explanation:

Given as :

The height of the ice cream cone to the ground = h = 10 foot

The angle make by the necklace of the ice cream cone = 55°

Let The length of the necklace = L foot

<u>Now, from figure </u>

Height = BC = h foot

The length of the necklace = L = AC

So, Sin angle = $\dfrac{\textrm perpendicular}{\textrm hypotenuse}$

Or, Sin 55° = $\dfrac{\textrm BC}{\textrm AC}$

Or, 0.8191 = $\dfrac{h}{L}$

Or, 0.8191 = $\dfrac{10 foot}{L}$

Or, L = $\dfrac{10 foot}{0.8191}$

∴ L = 12.20 foot

So, The length of necklace = L = 12.20 foot

Hence The length of the necklace is 12.20 foot Answer

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3 years ago

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Tpy6a [65]

Answer:

a) 67

b) 122

c) que angulo

d) 40

Step-by-step explanation:

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3 years ago