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3 years ago

PLEASE ANSWER ASAP! IM IN A RUSH!

Mathematics

2 answers:

LUCKY_DIMON [66]3 years ago

8 0

Answer:

Step-by-step explanation:

15 points is a lot

rewona [7]3 years ago

5 0

1 is A - just plug and chug
2 is B - for 2 linear equations to have infinite solutions they mustbe the same
3 is C
4 is C - that is where they intersect
5 is A - same slope and different intercepts means no solutions

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What is the sum of 36 plus 25

bija089 [108]

The sum is 61 for this equation.

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3 years ago

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Which answer is a solution of the equation?

Nuetrik [128]

2x + y = 5

Put the coordinates of the points to the equation and check it:

A. 5 - not make sense

B. (1, 2) - x = 1, y = 2

2(1) + 2 = 2 + 2 = 4 ≠ 5 NOT

C. (2, -1) - x = 2, y = -1

2(2) + (-1) = 4 - 1 = 2 ≠ 5 NOT

D. (3, -1) - x = 3, y = -1

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<h3>Answer: D. (3, -1).</h3>

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3 years ago

True or false in Florida, the number of alcohols related traffic deaths increased in 2009 compared to 2008

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4 years ago

X2 + y2 - 14x + 10y + 65 = 0 <br><br> will lie ENTIRELY in Quadrant

Afina-wow [57]

Rearranging to standard form
= (x - 7)^2 + (y + 5)^2 = -65 + 49 + 25
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3 years ago

The data shown represent the number of runs made each year during Bill Mazeroski’s career. Check for normality.

const2013 [10]

Answer:

The given data is not normal.

Step-by-step explanation:

We are given the following data:

30, 59, 69, 50, 58, 71, 55, 43, 3, 66, 52, 56, 62, 36, 13, 29, 17, 31

Condition for normality:

Mean = Mode = Median

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{800}{18} = 44.44$

Mode is the most frequent observation of the data.

Since all the value appeared once, there is no mode.

$Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}$

Sorted data: 3, 13, 17, 29, 30, 31, 36, 43, 50, 52, 55, 56, 58, 59, 62, 66, 69, 71

Median =

$=\dfrac{9^{th}+10^{th}}{2} = \dfrac{50+52}{2}=51$

Since the mean, mode and median of data are not equal, the data is not normal.

7 0

3 years ago