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Kobotan [32]
3 years ago
11

A+5a^(2) when a is -3

Mathematics
2 answers:
Yuki888 [10]3 years ago
6 0

Answer:

42

Step-by-step explanation:

a+5a^(2)

(-3)+5(-3)^2

(-3)+45

=42

daser333 [38]3 years ago
4 0

Answer:222

Step-by-step explanation:

5 times -3 is -15. -15^2 is 225. -3+225 is 222

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Minor surgery on horses under field conditions requires a reliable short-term anesthetic producing good muscle relaxation, minim
iren [92.7K]

Answer:

We accept  H₀

Step-by-step explanation:

Normal Distribution

size sample   n  = 69

sample mean  18.94

standard deviation  8.3

Is a one tailed-test to the left we are traying of find out is we have enough evidence to say that the mean is less than 20 min.

1.-Test hypothesis                              H₀         ⇒   μ₀  =  20

   Alternative hypothesis                  Hₐ         ⇒    μ₀  < 20

2.- Critical value

for α = 0.1  we find from z Table

z(c) = - 1.28

3.-We compute z(s)

z(s) = [ (  μ  -  μ₀ ) / (σ/√n)                ⇒    z(s) = [( 18.94  -  20  )*√69)/8.3]

z(s) = ( -1.06)*8.31/8.3                    

z(s) =  - 1.061

4.- We compare

z(c)   and z(s)           -1.28 > -1.061

Then z(c)    >  z(s)

z(s) in inside acceptance region  so we accept H₀

5 0
3 years ago
Help me somebody if you want to help me
elena55 [62]

Answer:

A=πr²=π·3²≈28.27433

To find the area of a circle, use the equation πr²

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3 years ago
Please answer quick as possible ​
Murrr4er [49]

Answer:

The correct option is B

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<h3 />
7 0
2 years ago
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A basket contains red, green, and yellow peppers. A pepper is

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is P(green)?

yes, it would be green.
5 0
2 years ago
Which of the following best describes the term induction?
sergey [27]
Reducing the solution to a problem in lowest terms
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