1 year ago

Quadratic transformation

Mathematics

1 answer:

alexira [117]1 year ago

7 0

Answer:

A. Left 3 Up 4

Step-by-step explanation:

The Vertex in the first graph has moved to the left three times and then gone up four

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Ramon paid $3.25 for notepads and $1.80 for markers. what is the total number of items he bought?

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Answer:

5.05

Step-by-step explanation:

3.25+1.80=5.05

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Find two numbers if their sum is 91 and the ratio is 6:7.

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6:7....added = 13

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OleMash [197]

ANSWER

$x=1.39$ to the nearest hundredth.

EXPLANATION

We have the equation,

$0=2x^2+3x-8$

Which can be rewritten as

$2x^2+3x-8=0$

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

$ax^2+bx+c=0$

$a=2,b=3,c=-8$

The quadratic formula is given by;

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We now substitute all the values in to the formula;

$x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}$

We simplify to obtain;

$x=\frac{-3\pm\sqrt{9+64}}{4}$

$x=\frac{-3\pm\sqrt{73}}{4}$

We now split the plus or minus sign to obtain;

$x=\frac{-3-\sqrt{73}}{4}$

This implies that;

$x=-2.89$

$x=\frac{-3+\sqrt{73}}{4}$

This will evaluate to;

$x=1.39$

Hence, the positive solution rounded to the nearest hundredth is

$x \approx 1.39$

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alexandr1967 [171]

Answer is x=24

...hope it helps

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