3 years ago

In which direction will the parabola open?

Mathematics

1 answer:

ale4655 [162]3 years ago

8 0

Answer:

Upward

Step-by-step explanation:

Use a graphing calculator

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What is the sum of the polynomials? 11x^2-5 + x+4

liraira [26]

Answer:

$11x^{2}+x-1$

Step-by-step explanation:

we have

$(11x^{2} -5) +(x+4)$

we know that

The sum of a quadratic equation and a linear equation will be a quadratic equation

Combine like terms

$(11x^{2})+(x)+(-5+4)$

$11x^{2}+x-1$

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3 years ago

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HELP PLS ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎ ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

VikaD [51]

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Step-by-step explanation:

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3 years ago

How many pounds is a quarter of a ton?

zmey [24]

$1 \ ton = 2000 \ lbs
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3 years ago

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It is estimated that 26% of the population of Gingerland have red hair. If 10 residents are chosen at random, what is the probab

sveticcg [70]

Answer:

The answer for me would be a) exactly 4 of them have red hair

Step-by-step explanation:

being that there is 26 percent of people in Gingerland that gave red hair I cam assume that that is a lot of people being that Gingelrand is like a city/town so exactly 4 of them is what I assume is the amswer

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3 years ago

How do I solve for question number 6

Natali5045456 [20]

Answer:

$18 + 18\sqrt{3}$

Step-by-step explanation:

The rectangle has been split into two right triangles. The hypotenuse of the triangle (the diagonal) is 18. The angle in the triangle is 30. All right triangles have unique relationships between their sides depending on the angles. This triangle must be a 30 - 60 - 90 triangle and its sides will be a scaled version of $1 - \sqrt{3} -2$ .

The side 2 correspond to the hypotenuse of length 18. 2*9 = 18 and so the scale factor is 9. To find the remaining sides, multiply each side length by 9 from $1 - \sqrt{3} -2$ .

It becomes $9 - 9\sqrt{3}-18$ . So the rectangle is 9 by $9\sqrt{3}$ .

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