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3 years ago

PLEASE HELP ME GIVING BRAINLEST AND NO LINKS!!!

Mathematics

1 answer:

lina2011 [118]3 years ago

3 0

Answer:

1.)280 2.)142.5 3.)30

Step-by-step explanation:

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Last one!! I need the steps please! Will mark brainliest!

hoa [83]

Answer:

$h(t)=-6(t-2)^2+24$

Step-by-step explanation:

Given function:

$h(t)=-6t^2+24t$

where:

h = height (in feet)
t = times (in seconds)

Rewrite in the form $h(t)=a(t-h)^2+k$

The quickest way to do this is to expand $h(t)=a(t-h)^2+k$ and compare coefficients with the original function.

$\begin{aligned}h(t)& =a(t-h)^2+k\\ & = at^2-2aht+ah^2+k\end{aligned}$

Comparing coefficients with $h(t)=-6t^2+24t$

$\begin{aligned}\implies at^2& =-6t^2\\ a &=-6\end{aligned}$

$\begin{aligned}\implies -2aht & =24t\\ -2(-6)ht& =24t\\ 12ht & = 24t\\ 12h & = 24\\ h & = 2\end{aligned}$

$\begin{aligned}\implies ah^2+k & = 0\\(-6)(2)^2+k &=0\\ -24+k & =0\\ k &=24 \end{aligned}$

Therefore, substituting the found values into the equation:

$h(t)=-6(t-2)^2+24$

6 0

2 years ago

Value of x when 6-2x=10x+6

lesya [120]

Answer:

x=0

Step-by-step explanation:

6-2x=10x+6

6-6=10x+2x

0=10x

0=x

Hope I helped

~Sunflower UwU

5 0

3 years ago

Read 2 more answers

Which is bigger 5.4 or 5.400

yuradex [85]

They are equivalent

7 0

4 years ago

Read 2 more answers

1.<br> Which equation is true when m = 12?

kobusy [5.1K]

Answer:

are there any more details? cant solve anything from what you have provided

Step-by-step explanation:

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3 years ago

∆A' B' C' is a translation of ∆ABC. Describe the translation.

suter [353]

Answer:

Triangle ABC has been translated 1 unit to the left and 4 units up

Step-by-step explanation:

Choose one of the points, for example B, and follow the units to B prime and see how many units vertically and horizontally the point as been translated.

7 0

4 years ago