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4 years ago

15

Solve the system of linear equations. (enter your answers as a comma-separated list. if there is no solution, enter no solution.

if the system has an infinite number of solutions, set x2 = t and solve for x1 in terms of t.)

1 answer:

SashulF [63]4 years ago

6 0

There is no system to solve for

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The answer is #1. The mean of Team A is less than the mean of Team B, and the standard deviation of Team A is greater than the standard deviation of Team B.

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Which set of numbers could be the side lengths of a right triangle?

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The answer is B) 4, 5, 7

Step-by-step explanation:

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3 years ago

on a piece of paper graph y=(x+2)(x-3) then determine which answer choice best matches the graph you drew. Provide an explanatio

ioda

Answer:

option C

Step-by-step explanation:

<u>Given </u><u>:</u><u>-</u><u> </u>

y = (x + 2)( x -3)

And we need to tell which graph best matches the graph we drew. Firstly let's convert it into a quadratic equation by opening and simplifying the brackets.

$:\implies$ y = ( x + 2) ( x - 3)

$:\implies$ y = x ( x - 3)+2( x - 3)

$:\implies$ y = x² - 3x + 2x -6

$:\implies$ y = x² - x - 6

Now plot its graph. For that refer to attachment.

<u>Things </u><u>we </u><u>can</u><u> </u><u>interpret</u><u> </u><u>:</u><u>-</u><u> </u>

The constant in the equation is -6. So the graph will cut y axis 6 units below the X axis . At (-6,0)
From the given options , option C matches the above point .

<u>Therefore</u><u> the</u><u> </u><u>correct</u><u> </u><u>option</u><u> </u><u>is </u><u>(</u><u>C)</u><u> </u><u>.</u>

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4 years ago

Can someone answer this question please answer it correctly and show work please

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Answer:

40) D

41) -56.33

Step-by-step explanation:

40)

Equation #1) 1 centimeter = 2.5 meters on the drawing

Equation #2) Length of the cafeteria on the drawing = 12.25 cm

Actual length:

Multiply both sides of equation #1 by 12.25 to get the actual length of the cafeteria

1(12.25) = 2.5(12.25)

12.25 cm = 30.625 meters

D

41)

$\frac{0.5\left(8\ +\ 3.2\right)}{-0.1}+\ \frac{3}{\left(-2.7\ -\ 6.3\right)}$

Start with multiplication inside the parenthesis

$\frac{4\ +\ 1.6}{-0.1}+\ \frac{3}{\left(-2.7\ -\ 6.3\right)}$

Add/Subtract

$\frac{5.6}{-0.1}+\ \frac{3}{-9}$

Simplify

$-56+\left(-0.33\right)$

$-56 - 0.33$

<h2> $-56.33$ </h2>

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25 days 1 hr 9 min

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