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3 years ago

What is the slope of this line: y=-4x-9

Mathematics

1 answer:

Katen [24]3 years ago

3 0

Answer:

-4

Step-by-step explanation:

y=-4x-9

y=mx+b

m=slope

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1) A dog runs from one side of a park to the other. The park is 80.0 meters across. The dog takes 16.0 seconds to cross the park

irina1246 [14]

All you really have to do is divide 80.0 by 16.0

80.0 divided by 16.0= 5

so 5 is your answer!

7 0

3 years ago

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The essay lengths of 29 randomly sampled essays are used to estimate the mean of the population. What t-score should be used to

slavikrds [6]

Answer:

A t-score of 1.701 should be used to find the 95% confidence interval for the population mean

Step-by-step explanation:

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 29 - 1 = 28

Now, we have to find a value of T, which is found looking at the t table, with 28 degrees of freedom(y-axis) and a confidence level of 0.95( $t_{95}$ ). So we have T = 1.701.

A t-score of 1.701 should be used to find the 95% confidence interval for the population mean

5 0

2 years ago

1) g=-y+c/x, solve for X

Sindrei [870]

Answer:

the solution $x = \frac{c}{g-y}$

Step-by-step explanation:

Step 1:-

Given problem $g=\frac{-y+c}{x}$

here l.cm is x

$g = \frac{x y+c}{x}$

cross multiplication we get ,

$g x = x y +c$

Step 2:-

subtracting x y on both sides , we get

$g x - x y = c$

taking common 'x' we get,

$x(g-y) = c$

Final answer:-

$x = \frac{c}{g-y}$

3 0

3 years ago

5091.43 to 1 decimal place

Elden [556K]

Answer:

5091.4 if rounding, then idk

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2 years ago

N + 25= 60 what is the value of n

gtnhenbr [62]

Answer:

n=35

Step-by-step explanation:

Subtract 25 from both sides to isolate the variable

n+25=60

-25 -25

n=35

Hope this helps! :)

7 0

2 years ago

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