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3 years ago

London eye

Mathematics

2 answers:

mamaluj [8]3 years ago

7 0

Answer: the equation is zero in the middle. The rest of your numbers are around the graph.

ZanzabumX [31]3 years ago

5 0

Answer:

the equation is zero in the middle. The rest of your numbers are around the graph.

Step-by-step explanation: also how did you find the central angle im having trouble with that.

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The table below gives the completion percentage and interception percentage for five randomly selected NFL quarterbacks. Based o

Lina20 [59]

The regression equation is y = -0.42647x + 29.11471 and the correlation coefficient is -0.9607

<h3>How to determine the regression equation?</h3>

The table of values is given as:

Completion Percentage 57 59 62 63 64

Interception Percentage 5 3.5 3 2.5 1.5

Next, we enter the above values in a graphing calculator.

From the graphing calculator, we have the following summary:

Sum of X = 305
Sum of Y = 15.5
Mean X = 61
Mean Y = 3.1
Sum of squares (SSX) = 34
Sum of products (SP) = -14.5
r = -0.9607

Regression Equation = ŷ = bX + a

b = SP/SSX = -14.5/34 = -0.42647

a = MY - bMX = 3.1 - (-0.43*61) = 29.11471

So, the regression equation is

y = -0.42647x + 29.11471

And the correlation coefficient is -0.9607

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2 years ago

Simplify: 9(9+-4y)-16y

Maksim231197 [3]

the simplified expression would be 81-52y

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4 years ago

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AB is tangent to the circle at B. M∠A=40 and mBC=130. <br> a. Find x <br> b. Find y

soldi70 [24.7K]

The values for x and y are respectively given as

x = 50
y= 90

This is further explained below.

<h3>What is the values for x and y ?</h3>

Generally, the equation for secent is mathematically given as

$secent = \frac{big arc - small arc}{2}$

Therefore

$40 = \frac{130-x}{2}$

80 = 130-x

x = 50

b) To Solve for y Now we find a measure of arc CD

ArcCD = 360-130-50

ArcCD = 180

In conclusion,(1/2) of the arc measure is equal to the angle that is on and inside a circle.

y = 180/2

y= 90

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2 years ago

On Friday,

dimaraw [331]

I would make both denominators the same, and the lowest one that works is 18. So I'd make 1/9 into 2/18, and 1/6 into 3/18. They already used these times so combine them to make 5/18 then subtract that from the total time they had (18/18) and you would get 13/18 they spent playing music.

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3 years ago

Nellie is buying bird seed to put in her bird feeders. she uses about 10 pounds of bird seed each week, but has room to store an

neonofarm [45]

Nellie has to calculate the price per pound for every bag.

1) 2.52 / 3.5 = 0.72 $/lb
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3) 7.92/11 = 0.72 $/lb

Then, price per pound is the same for any bag. There is no advantage of purchasing one or other, given that she can store any quantity.

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3 years ago

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