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2 years ago

14

Steve was multiplying 45.9 by 0.1. Which statement is true about the product? A. It will be less than 45.9. B. It will be equal

to 45.9. C. It will be greater than 45.9.
WILL MARK BEST!!!!

2 answers:

lara [203]2 years ago

7 0

The correct answer choice is
A
the product would be 4.59 if multiplied

rosijanka [135]2 years ago

7 0

The answer is a. It will be less than 45.9 because when multiplying 45.9 by .1 we get 4.59.

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Let A = {x : 2x² + 3x - 2 = 0} and B = {x : x² + 3x - 4 = 0 } find (A U B) × (A Π B)

ivann1987 [24]

Given :

A = {x: 2x² + 3x - 2 = 0 }
B = {x : x² + 3x - 4 = 0 }

To find :

(A U B ) × (A Π B )

Solution :-

<u>The </u><u>first </u><u>set </u><u>is </u><u>,</u>

A ={x : 2x² + 3x - 2 = 0}

<u>Solving</u><u> </u><u>the </u><u>Quadratic</u><u> equation</u><u> </u><u>,</u>

2x² + 3x - 2 = 0
2x² + 4x - x - 2 = 0
2x( x + 2) -1( x + 2 ) = 0
(2x -1) ( x + 2) = 0
x = 0.5 , -2

<u>Hence</u><u> </u><u>,</u>

A ={0.5, -2}

<u>The </u><u>second</u><u> </u><u>set </u><u>is </u><u>,</u>

B ={ x :x² + 3x - 4 = 0 }

<u>Solving</u><u> the</u><u> Quadratic</u><u> equation</u><u> </u><u>,</u>

x² + 3x - 4 = 0
x² + 4x - x - 4 = 0
x( x + 4)-1 ( x +4) = 0
(x + 4) ( x -1) = 0
x = 1 , -4

<u>Hence</u><u> </u><u>,</u>

B ={1,4}

<u>Now </u><u>,</u>

A U B = { 0.5 , 1 , 4 , -2}
A Π B = {∅ }

Since AΠ B is a null set , hence ,

A × B = {∅}

8 0

2 years ago

Please help! Will mark as brainliest!

Juliette [100K]

Answer:

C

Step-by-step explanation:

Use elimination by multiplying thw whole top equation by 2. (both sides)

then cancel out y and solve for x. plug back in to get y

please mark brainliest if you found this helpful

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2 years ago

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soldi70 [24.7K]

The graph intersects the x-axis twice. It intersects at the points of (-1,0) and (2.5,0). The graph is attached.

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2 years ago

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Answer:

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Step-by-step explanation:

Equation of a line is y = mx + c

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c is the y intercept

To find the equation we must first find the slope of the line.

So the slope of the line using points (-3, 7) and (9,-1) is

<h3> $m = \frac{ - 1 - 7}{9 + 3} = - \frac{8}{12} = - \frac{2}{3}$ </h3>

Now we use the formula

<h3>y - y1 = m(x - x1)</h3>

where

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So the equation of the line using point

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We have the final answer as

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