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3 years ago

Is 2(6-3x+x equal to 2(3x)+x

Mathematics

1 answer:

makvit [3.9K]3 years ago

4 0

Answer:

no because 2(6-3x)+x equals 12-5x and 2(3x)+x equals 7x

Step-by-step explanation:

hope this helps

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The dimensions of a rectangle are such that its length is 3 inches more that its width. If the length and width were decreased b

nalin [4]

Let L be the length and W be the width. The equations that represents the given conditions are,
(1) L = W + 3
(2) A = (L - 1) x (W - 1) = 150
A = (W + 3 - 1) x (W - 1) = 150
The value of W is 11.8389 in. The width is therefore, 11.8389 in and the length is 14.8389 in.

7 0

3 years ago

Which ordered pair makes both inequalities true? y > –2x + 3 y < x – 2 A.(0,0) B.(0,–1) C.(1,1) D.(3,0)

masha68 [24]

The answer is D
0>3
0<1

8 0

3 years ago

The ability to find a job after graduation is very important to GSU students as it is to the students at most colleges and unive

Murrr4er [49]

Answer:

(0.806, 0.839)

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

Suppose we take a poll (random sample) of 3653 students classified as Juniors and find that 3005 of them believe that they will find a job immediately after graduation.

This means that $n = 3653, \pi = \frac{3005}{3653} = 0.823$

99% confidence level

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.823 - 2.575\sqrt{\frac{0.823*0.177}{3653}} = 0.806$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.823 + 2.575\sqrt{\frac{0.823*0.177}{3653}} = 0.839$

The answer is (0.806, 0.839)

5 0

3 years ago

Are the ratios 2:1 and 18:9 equivalent

MrRa [10]

Answer:

Step-by-step explanation:

hello :

the ratios 2:1 and 18:9 are equivalent because :

2/1 = (2×9)/(1×9)= 18/9

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=%28%20%7Bx%7D%5E%7B3%7D%20-%208%20%7Bx%7D%5E%7B2%7D%20%20%2B%2019x%20-%209%29%20%5Cdiv%20%28x%

Anna [14]

$(x^3-8x^2+19x-9)\div(x-4)=x^2-4x+3\\\underline{-x^3+4x^2}\\=-4x^2+19x\\\underline{\ \ \ \ \ 4x^2-16x}\\.\ \ \ =3x-9\\\underline{\ \ \ \ \ -3x+12}\\.\ \ \ \ \ =\ 3$

$x^3-8x^2+19x-9=(x^2-4x+3)(x-4)+3$

6 0

3 years ago