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Mandarinka [93]
2 years ago
10

Help please

Mathematics
1 answer:
BARSIC [14]2 years ago
8 0

Answer:

8

Step-by-step explanation:

8*25=2.00

2.00+.90=2.90

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What are the solutions to the quadratic equation -2x^2 + 6x + 3 = 0?
mario62 [17]

For this, we will be using the quadratic formula, which is x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}, with a=x^2 coefficient, b=x coefficient, and c = constant. Our equation will look like this: x=\frac{-6+/-\sqrt{6^2-4*(-2)*3}}{2*(-2)}


Firstly, solve the multiplications and the exponents: x=\frac{-6+/-\sqrt{36+24}}{-4}


Next, do the addition: x=\frac{-6+/-\sqrt{60}}{-4}


Next, your equation will be split into two: x=\frac{-6+\sqrt{60}}{-4},\frac{-6-\sqrt{60}}{-4} . Solve them separately, and your answer will be x=-0.436,3.436

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3 years ago
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Answer:

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Step-by-step explanation:

First, let's find the slope. Since the line is horizontal, it's slope has to be 0 (this is because slope = rise/run, there is no "rise" in a horizontal line therefore the slope is 0)

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The equation would be:

y=0x-4

y=-4

5 0
2 years ago
How many triangles in the diagram can be mapped to one another by similarity transformations? A. 2 B. 4 C. 0 D. 3
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The answer is B. 4


Explanation
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3 years ago
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kupik [55]

Answer:

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Step-by-step explanation:

Any value multiplied by zero equals zero , thus

0 × | - 6 | = 0

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Step-by-step explanation:

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