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2 years ago

What is the slope Of a line that passes through the points (9,8) and (2,3)?

2 answers:

6 0

$(\stackrel{x_1}{9}~,~\stackrel{y_1}{8})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{3}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{3}-\stackrel{y1}{8}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{9}}}\implies \cfrac{-5}{-7}\implies \cfrac{5}{7}$

iVinArrow [24]2 years ago

3 0

Answer:

here hope this help you

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PLEASE HELP IMMEDIATELY!!

-Dominant- [34]

Answer:

Step-by-step explanation:

45-45-90

find hypotenuse: leg × root 2

$8 \times \sqrt{2}$

4 0

2 years ago

Evaluate the expression if a = -1 and b = 1/2.<br> 3+a/2 - 6b

Anna [14]

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3 years ago

It costs more to produce defective items - since they must be scrapped or reworked - than it does to produce non-defective items

ale4655 [162]

Answer: a) 1082, b) wider.

Step-by-step explanation:

Since we have given that

Margin of error = 0.1 millimeter = E

Standard deviation = 2 mm = σ

Critical value would be

$z_{\frac{\alpha}{2}}=z_{0.05}=1.645$

a) Sample size would be

$n=(\dfrac{z_{\frac{\alpha }{2}}\times \sigma}{E})^2\\\\n=(\dfrac{1.645\times 2}{1})^2\\\\n=1082.41\\\\n=1082$

b) Sample size, n = 100

So, the margin of error would be

$E=z_{\frac{\alpha }{2}}\times \dfrac{\sigma}{\sqrt{n}}\\\\E=1.645\times \dfrac{2}{\sqrt{100}}\\\\E=1.645\times \dfrac{2}{10}\\\\E=0.329$

Since the margin of error in b part is more than a part, as we know that the higher the margin of error, the wider the confidence interval.

So, it would have wider confidence interval.

Hence, a) 1082, b) wider.

4 0

3 years ago

Write 9.12 as a repeating decimal into a mixed number in its simplest form

Alex Ar [27]

Answer:

9 4/33.

Step-by-step explanation:

0.12 repeating = 12/99

= 4/33.

5 0

3 years ago

PLEASE HELP!! no links, no unnecessary comments or i will take away points. IF SHOWN ON PAPER I WILL GIVE BONUS POINTS AND BRAIN

Ghella [55]

Answer:

(-3.5, 2)

Step-by-step explanation:

If you were to graph all the other points it would look like the picture below, so to complete the rectangle it has to be (-3.5,2)

3 0

2 years ago