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ICE Princess25 [194]
2 years ago
5

Solve each quadratic equation. Show your work. 14. (2x – 1)(x + 7) = 0

Mathematics
2 answers:
melisa1 [442]2 years ago
5 0
<span>(2x – 1)(x + 7) = 0

2x-1=0
2x=1
x=1/2
x=0.5

x+7=0
x= -7
</span>
ahrayia [7]2 years ago
5 0
Solve your equation step-by-step.

(2x−1)(x+7)=0

Simplify both sides of the equation.

2x2+13x−7=0

Factor left side of equation.

(2x−1)(x+7)=0

Set factors equal to 0.

2x−1=0 or x+7=0

x=1/2 or x=−7

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Sauron [17]

164.38 = (1 x 100) + (6 x 10) + (4 x 1) + (3/10) + (8/100)

7 0
3 years ago
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Simplify 3 - (4x - 5) + 6.<br> A) 12x + 21 <br> B) 4x + 14 <br> C) 4x + 4 <br> D) -4x + 14
stepladder [879]

Answer:

D) -4x+14

Step-by-step explanation:

We are given with the expression

3 - (4x - 5) + 6

Here we are going to open the bracket at first step

as we have a negative sign in front of bracket the signs of the terms inside brackets will be reversed

3-4x+5+6

now we bring the like terms together

3+5+6 - 4x

Here 3, 5, 6 all are constant and hence like

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3 - (4x - 5) + 6= -4x+14

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6 0
3 years ago
Emily took 300 US dollars to the bank to exchange it for Canadian dollars. The exchange rate on that day was 1.25 Canadian dolla
Paha777 [63]

Emily wanted to exchange her 300 US Dollars for Canadian Dollars.

The exchange rate for it was 1.25 Canadian Dollars for 1 US Dollar.

This means that 1 US Dollar = 1.25 Canadian Dollars.

So if we were to follow this pattern,

2 US Dollars = 2 × 1.25 = 2.5 Canadian Dollars

3 US Dollars = 3 × 1.25 = 3.75 Canadian Dollars

4 US Dollars = 4 × 1.25 = 5 Canadian Dollars

So for 300 US Dollars, we'll need to multiply 300 by 1.25.

300 US Dollars = 300 × 1.25 = 375 Canadian Dollars.

Hope it helps. :)

4 0
3 years ago
PLEASE NO LINKS Thank you :)
alexgriva [62]

Answer:

hon you never asked a question or added an image. id be happy to try and help if you do!

6 0
2 years ago
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Solve the system using any method.<br> 6x+2y =7<br> y= 2-3x
Drupady [299]

Answer:

there is no solution

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3 years ago
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