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3 years ago

Graph the function y=-x+x^2

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

6 0

You can use a graphing calculator or create a tablet by using those numbers :-3,-2,-1,0,1,2,3

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Five sixth minus four twelths

Neko [114]

The answer to your question is ½

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3 years ago

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How many integers are between 1.25 and 7.1?

Sergeu [11.5K]

Answer:

Step-by-step explanation:

Integers are just whole numbers.

So between 1.25 and 7.1 there is...

2,3,4,5,6,7

These are 6 integers.

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3 years ago

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Which shows a perfect square trinomial?

astra-53 [7]

Answer:

100-36x^2y^2

Step-by-step explanation:

100-36x^2y^2 =

(10-6xy)(10+6xy)

Because x^2-y^2 = (x+y)(x-y)

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4 years ago

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A square with a side length of 3 units is dilated with a scale factor of 2.

Anna [14]

<h3> - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - </h3>

➷Simply multiply by 2:

3 x 2 = 6

It would be 6 units

➶Hope This Helps You!

➶Good Luck :)

➶Have A Great Day ^-^

↬ Hannah ♡

3 0

4 years ago

Suppose the mean height of women age 20 years or older in a certain country is 62.7 inches. One hundred randomly selected women

zmey [24]

Answer: No, the data provided is not sufficient evidence to conclude that the mean height of women in the city differs from the national mean.

Step-by-step explanation:

Since we have given that

$H_0:\mu =62.7\\\\H_a:\mu \neq 62.7$

Mean height = 61.5 inches

Standard deviation = 4.4 inches

n = 100

So, test statistic value would be

$z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{61.5-62.7}{\dfrac{4.4}{\sqrt{100}}}\\\\z=\dfrac{-1.2}{0.44}\\\\z=-2.727$

At 10% level of significance, in two tail test ,

z = 1.28

Since 1.28 > -2.727

So, we will accept the null hypothesis.

Hence, No, the data provided is not sufficient evidence to conclude that the mean height of women in the city differs from the national mean.

7 0

4 years ago