2 years ago

Mrs. Sparks is a 9th-grade Algebra 1 teacher. She teaches three

Mathematics

1 answer:

soldi70 [24.7K]2 years ago

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Answer:

Imagine that scientists have just discovered a non-bird dinosaur skeleton. They want to know whether the dinosaur was closely related to birds. What features in ...

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3 years ago

A ball is thrown into the air. The height in feet of the ball can be modeled by the equation h = -16t2 + 20t + 6 where t is the

makkiz [27]

$f(t)=h=-16t^2+20t+6

$

a=-16, b=20, c =6

Δ= $b^2-4ac=20^2-4*(-16)*6=400+384=784$

$\sqrt{Δ}=\sqrt{784}=28$

max:

$p=-\frac{b}{2a}=-\frac{20}{-32}=\frac{20}{32}=\frac{5}{8}$

max heigh: $h=-16(\frac{5}{8})^2+20*\frac{5}{8}+6=-16\frac{25}{64}+\frac{100}{8}+6$

$h=-\frac{25}{4}+\frac{50}{4}+6=\frac{-25+50+24}{4}=\frac{49}{4}$

$h=\frac{49}{4}$ at $t=\frac{5}{8}s$

will fall down at t:

$t=\frac{-20-28}{-32}=\frac{-48}{-32}=\frac{3}{2}=1.5$

$t=1.5s$

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3 years ago

A pack of 13 candles is priced at $78. At that rate, how much would only 10 candles cost?

Sphinxa [80]

Answer:

78/13 = 6 (is the price of one candle)

6(price) x 10(candles) =60 is the answer

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3 years ago

Whats 1000*1000 I<br> it's too short. Write at least 20 characters to get a great answer.

Alekssandra [29.7K]

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1000000

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2 years ago

Graph this function:<br> y - 5 = -3(x + 3)<br> Click to select points on the graph.

makvit [3.9K]

Root: (-4/3, 0)
vertical intercept: (0, -4)

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3 years ago

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