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3 years ago

10

4 divided by 1/2 Pls help

1 answer:

Sindrei [870]3 years ago

7 0

4 / (1/2(pi)) = 4/1 x (2pi/1) = 4 x 2pi = 8pi

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Graph the equation y=-x. is (5,5) on the line? what is the slope of the line?

bezimeni [28]

You'll actually need to graph for the first segment
but the second part can be solved with algebra

The equation of the line is y(x)=-x

if we test the co0ordinates we can find if the point lies on the line

(5,5)
y(x)=-x

Using the x co-ordinate
y(5)= -5
y=-5

Leaving us with (5,-5)

Because (5,-5) is not (5,5)
This is not a point on the line

The slope of the line is -1

4 0

3 years ago

Find the repayment $5000 loaned for 4 years at 6% interest p.a What is the total amount What will be the monthly repayments?

Stella [2.4K]

Answer: Monthly Repayment = $117.43

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3 years ago

Write in standard form. a) 2 4 b) 10 3 c) 3 5 d) 7 3 e) 2 8 f) 4 1 <br><br> PLZ HELP!!!!!

Rama09 [41]

A) 24

24 x 10

b)

103

103 x 10

C) 35

35 x 10

D) 73

73 x 10

E) 28

28 x 10

F) 41

41 x 10

4 0

3 years ago

In an effort to determine whether any correlation exists between the price of stocks of airlines, an analyst sampled six days of

vovikov84 [41]

Answer:

Check the explanation

Step-by-step explanation:

Following table shows the calculations:

Delta, X Southwest , Y X^2 Y^2 XY

45.96 38.76 2112.3216 1502.3376 1781.4096

46.8 45.41 2190.24 2062.0681 2125.188

47.93 15.7 2297.2849 246.49 752.501

51.78 49.58 2681.1684 2458.1764 2567.2524

52.17 44.34 2721.7089 1966.0356 2313.2178

47.36 18 2242.9696 324 852.48

Total 292 211.79 14245.6934 8559.1077 10392.0488

Sample size: n =6

Now

$S_{yy}=\sum y^{2}-\frac{\left (\sum y \right )^{2}}{n}=1083.27$

$S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=35.03$

$S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=84.94$

The coefficient of correlation is :

$r=\frac{S_{xy}}{\sqrt{S_{xx}S_{yy}}}=0.436$

7 0

3 years ago

Please answer fast, will give brainliest!

9966 [12]

Answer:

the third one

Step-by-step explanation:

x^2 is always non-negative, so -3x^2 will always be non-positive. You can eliminate any tables with positive values for y.

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3 years ago