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Art [367]
3 years ago
15

What is the slope (2,10) (5,9)

Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
5 0

Answer:

slope=(9-10)/(5-2)=-1/3

julsineya [31]3 years ago
3 0

Answer:

2,10 I do think Im not sure though

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A manufacturer of new light bulbs claims the average lifetime of its long-life bulb is more than 4000 hours. To test this claim,
natka813 [3]

Answer: C. 12.5

Step-by-step explanation:

Given : A manufacturer of new light bulbs claims the average lifetime of its long-life bulb is more than 4000 hours.

Population mean :  \mu=4000

Sample size : n= 100

Sample mean : \overline[x}=4500

Standard deviation: s=400

The value of test-statistic is given by :-

z=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}\\\\\Rightarrow\ z=\dfrac{4500-4000}{\dfrac{400}{\sqrt{100}}}\\\\\Rightarrow\ z= 12.5

Hence, the value of the test statistic for this problem is 12.5.

5 0
3 years ago
A right triangle has sides of length 3, 4, and .
olchik [2.2K]

Answer:

5/hypotenuse, the square root of 7/ leg

Step-by-step explanation:

3^2+4^2=25 or 5^2. you use a^2+b^2=c^2. it would be one of the hypotenuses. If the missing number is a leg, you would do 4^2=3^2+x^2. 16=9+x^2, 7=x^2, so you plug in the numbers differently.

3 0
3 years ago
Read 2 more answers
Triangle ABC is dilated about the origin with a scale factor of 3.
vitfil [10]

Answer:(0)-12,-15

Step-by-step explanation:

4 0
3 years ago
Pls help i forgot how to do this :)
Delvig [45]

Answer:

in picture

Step-by-step explanation:

added in the picture

7 0
2 years ago
Any one know geometry please help me out
MA_775_DIABLO [31]

Answer:

X = 4

Step-by-step explanation:

And then the nearest tenth would be 0

cause all numbers that have 4 round to like 0 or the tenth under it. If it has a five or higher it rounds to 10 or the number above it

7 0
3 years ago
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