3 years ago

Graph the line y= -7.

Mathematics

1 answer:

amid [387]3 years ago

7 0

Answer: Use the coordinates (0,-7)

Step-by-step explanation:

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What is the equation of the line of symmetry for the parabola represented by the equation y=−x^2+2x+6?

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Answer:

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Step-by-step explanation:

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3 years ago

A ball is thrown upward from a height of 15 ft with an initial velocity of 5 ft/s. Use the equation h=-16t^2+5t+15 to answer the

Fiesta28 [93]

Answer:

1) 1.1 seconds

2) 13.5 feet

$\rightarrow \sf -16t^2 + 5t + 15 = 0$

<u>Apply quadratic formula</u>:

$\rightarrow \sf t= \dfrac{-5\pm \sqrt{5^2-4\left(-16\right)\cdot \:15}}{2\left(-16\right)}$

<u>Simplify following</u>

$\rightarrow \sf t=-\dfrac{-5+\sqrt{985}}{32},\:t=\dfrac{5+\sqrt{985}}{32}$

In decimal form:

$\rightarrow \sf t=-0.825 ,\:t=1.137$

Conclusion:

As time is be only positive: t = 1.1 seconds

$\rightarrow \sf h=-16t^2 + 5t + 15$

<u>insert t = 0.5</u>

$\rightarrow \sf h=-16(0.5)^2 + 5(0.5) + 15$

<u>simplify</u>

$\rightarrow \sf h=13.5$

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Five and thirty-nine thousandths in standard decimal form

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Answer:

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The function f(x) is graphed below. Determine whether the degree of the function is

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Even bc it doesn’t go through the origin

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Answer:

w=14

Step-by-step explanation:

29-15=14

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