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3 years ago

9

Select the true inequality 1.9<.19 , .29>.3, .6<2.07, or 2.15>2.2

1 answer:

n200080 [17]3 years ago

7 0

6 <2.07 I believe have a nice day

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Write the standard form of the simplest polynomial with the roots 2, 3, and -3

koban [17]

$\text{If}\ x_1,\ x_2\ \text{and}\ x_3\ \text{are roots of a polynomial, then we can write that polynomial}\\\text{in form}\ (x-x_1)(x-x_2)(x-x_3).\\\\\text{We have\ the\ roots:}\ 2,\ 3\ \text{and}\ -3.\\\\w(x)=(x-2)(x-3)(x-(-3))=(x-2)\underbrace{(x-3)(x+3)}_{use\ a^2-b^2=(a-b)(a+b)}\\\\=(x-2)(x^2-9^2)=(x-2)(x^2-9)=(x)(x^2)+(x)(-9)+(-2)(x^2)+(-2)(-9)\\\\=x^3-9x-2x^2+18=\boxed{x^3-2x^2-9x+18}$

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4 years ago

Jill is currently one years old older than twice bonnie's age.if bonnie is currently 9 years old how old is jill?

Paladinen [302]

Twice bonnies age is (9 plus 9 equals 18) 18 and one year older than 18 is 19. Therefore Jill is 19 years old

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3 years ago

What is the equation of the line that passes through the point (- 2, 1) and has a slope of - 5/2

dangina [55]

Answer:

y = -5/2x - 4

Step-by-step explanation:

y = -5/2x + b

1 = -5/2(-2) + b

1 = 5 + b

-4 = b

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3 years ago

WILL MARK BRAINLIEST AND THANK YOU!!

andreyandreev [35.5K]

Answer:

Step-by-step explanation:

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4 years ago

A consumer information website claims that the average price of all routers is $80. If we assume that the population standard de

Brrunno [24]

Answer: 0.031

Step-by-step explanation:

As considering the given information, we have

$\mu=80$

$\sigma=28$

n= 75

Let x be the random variable that represents the price of all routers.

We assume that the price of all routers are normally distributed.

Z-score corresponding to x=74 will be :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

$z=\dfrac{74-80}{\dfrac{28}{\sqrt{75}}}\\\\=-1.8557687224\approx-1.86$

Using z-value table,

P-value = P(x ≤ -1.86)=1-P(x≤ 1.86)=1-0.9685572=0.0314428≈0.031

Hence, the required probability = 0.031

8 0

3 years ago