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salantis [7]
3 years ago
5

A 2-column table with 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is l

abeled f of x with entries 21, 10, 5, 6, 13.
Which quadratic function is represented by the table?

f(x) = 3x2 + 2x – 5
f(x) = 3x2 – 2x + 5
f(x) = 2x2 + 3x – 5
f(x) = 2x2 – 2x + 5
Mathematics
2 answers:
fenix001 [56]3 years ago
8 0

Answer:

its b

Step-by-step explanation:

Ira Lisetskai [31]3 years ago
4 0

Answer:

It's B

Step-by-step explanation:

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Evaluate the following expressions given the values below.
abruzzese [7]

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31

Step-by-step explanation:

ab + bc + ac for a = 2, b = 5, and c = 3

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2 years ago
równanie zmiany prędkość autokaru poruszającego się po prostym odcinku szosy i rozpoczynającego hamowanie od szybkości 20m/s ma
Rasek [7]

Answer:

s = 22.5 m

Step-by-step explanation:

the equation for the speed change of a coach moving along a straight section of the road and starting braking at a speed of 20 m / s has the form v (t) = 25-5t. Using integral calculus, determine the coach's braking distance.

v (t) = 25 - 5 t

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Let the distance is s.

s =\int v(t) dt\\\\s =\int (25 - 5t)dt\\\\s= 25 t - 2.5 t^2 \\

Let at t = t, the v = 20

So,

20 = 25 - 5 t

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3 0
2 years ago
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Step-by-step explanation:

6 0
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Suppose a horticulturist measures the aboveground height growth rate of four different ornamental shrub species grown in a green
torisob [31]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The decision is to <u>reject</u> the <u> null hypothesis</u> at a significant level of <u>significance </u> \alpha  = 0.05 There is <u>sufficient </u> evidence to conclude that <u>at least one of the population mean</u>  is <u>different from</u>  <u>at least of the population</u>  

Step-by-step explanation:

From the question we are told that the claim is

     The mean growth rates of all four species are equal.

The  null hypothesis is  

             H_o  :  \mu _1 =  \mu_2 = \mu_3  =  \mu_4

Th alternative hypothesis is    

             H_a: at \ least \ one \ of \  the \  means \ is \not\ equal

From question the p-value is p-value  =  0.015

  And since the p-value <  \alpha so the null hypothesis will be rejected

So  

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