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ira [324]
2 years ago
14

Pls help!!!!!!!!!!!!!!

Mathematics
1 answer:
Lady_Fox [76]2 years ago
4 0

Answer:

C

Step-by-step explanation:

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Calculate the slope of the line that goes<br> through the ordered pairs (0, -7), and (-2,-27).
Aleks04 [339]

Answer:

10

Step-by-step explanation:

To find the slope subtract the points like the following:

(-27-(-7)/(-2-0)

= -20/-2

=10

So, the slope is 10.

3 0
3 years ago
I need help with the graph I don’t I understand it
Varvara68 [4.7K]
The picture is blurry
8 0
3 years ago
A meteorologist who sampled 4 thunderstorms found that the average speed at which they traveled across a certain state was 16 mi
DENIUS [597]

Answer:

The  90 % confidence  interval  for the mean population is (11.176  ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

Step-by-step explanation:

Mean = x`= 16 miles per hour

standard deviation =s= 4.1 miles per hour

n= 4

\frac{s}{\sqrt n}  =  4.1/√4= 4.1/2= 2.05

1-α= 0.9

degrees of freedom =n-1=  df= 3

∈ ( estimator  t with 90 % and df= 3 from t - table ) 2.353

Using Students' t - test

x`±∈ * \frac{s}{\sqrt n}

Putting values

16 ± 2.353 * 2.05

= 16 + 4.82365

20.824  ;        11.176

The  90 % confidence  interval  for the mean population is (11.176  ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

4 0
3 years ago
Read 2 more answers
What is the value of a in the equation −14a−5=−12?
-BARSIC- [3]
-14a-5=-12
+5 +5
-14a=-7
Divide -7 by -14a
a=2
7 0
3 years ago
A line is drawn so that it passes through the point (3,4) and (2,1). what is the slope of the line
Tamiku [17]
Y2-y1/x2-x1
1-4/2-3
Slope is: -3/-1 or 3
7 0
3 years ago
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