3 years ago

Select all the equations that have x = 0.9 as a solution

Mathematics

1 answer:

Solnce55 [7]3 years ago

7 0

C and d are going to be the answers to your question. >-< :)

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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

Select the correct answer.

maks197457 [2]

The answer to this question has to be D. 42.75 square inches.

7 0

2 years ago

HELP!!! i already found x, can someone please help me find y asap?

tamaranim1 [39]

Answer:

Y = 166

Step-by-step explanation:

The missing angle measure in the small trapezoid is 93 degrees. So to solve for “y” you have to make the expression equal to 93.

y - 73 = 93

y = 166

Hope this helps! Pls give brainliest!

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3 years ago

Without using a calculator, determine the number of real zeros of the function f(x) = x3 + 4x2 + x − 6.

LUCKY_DIMON [66]

I am pretty sure x= -0.5

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4 years ago

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The distance light travels in one light year is 5,880,000 meters. Write this is scientific notation.

iris [78.8K]

5,880,000 in scientific notation is: 5.88 x 10^6

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3 years ago

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