2 years ago

Find the slope of the line passing through the points (-9, -6) and [ (-4, 5)

Mathematics

1 answer:

lora16 [44]2 years ago

3 0

Answer:

y2-y1 5--6 11

-------- =. -------- = ----

x2-x1 -4 --9 5

Step-by-step explanation:

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Find the distance between the points given.<br><br> (-3, 2) and (9, -3)

g100num [7]

The distance will be given by the equation;
D= $\sqrt{( x_{1} - x_{2} )^{2} +( y_{1} - y_{2} )^{2} }$
D= $\sqrt{ (-3-9)^{2}+( 2--3)^{2} }$
D= $\sqrt{ (-12)^{2} + (5)^{2} }$
D= $\sqrt{169}$
D=13 units

8 0

3 years ago

Chris and lisa went shopping and spent a total of $25.50. Lisa spent $13.50 more than chris spent. Hiw much did lisa spend?

baherus [9]

Answer:

12$

Step-by-step explanation:

$25.50-$13.50=$12

5 0

2 years ago

Eight gymnastics teams will compete in the team finals at the

disa [49]

Answer:

it is 6!/8!

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2 years ago

Meena is helping her school librarian to arrange books on the shelves. Based on this situation, answer the following questions:

Illusion [34]

Answer:

c) 2/15

Step-by-step explanation:

LA= 2/3 = 10/15

S=1/5 = 3/15

15/15 - 13/15 = 2/15

Math books= 2/15

5 0

2 years ago

In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be s

Lyrx [107]

Answer:

832

Step-by-step explanation:

standard deviation =228 minute

error =13 minute given

confidence level =905% =0.90

α=1-0.90=0.1

$z_\frac{\alpha }{2}=z_\frac{0.1}{2}=1.645$

we know that sample size should be greater than

$n\geq \left ( z_\frac{\alpha }{2}\times \frac{\sigma }{E} \right )^2$

$n\geq \left ( 1.645\times \frac{228}{13} \right )^{2}$

$n\geq 28.850^2$

$n\geq 832.3668$

n=832

4 0

2 years ago