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2 years ago

15

Helpppppppp details in picture

1 answer:

Blababa [14]2 years ago

6 0

The correct answer is 10 to the 4.

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a group of astronauts launched a model rocket from a platform. Its flight path is modeled by h= -4t^2+24t+13 where h is the heig

Eddi Din [679]

Answer:

6.5 seconds

Step-by-step explanation:

Keep in mind that when $h=0$ , this is the same height for both when the model rocket takes off and lands, so when the rocket lands, time is positive. Thus:

$h=-4t^2+24t+13\\\\0=-4t^2+24t+13\\\\t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\ \\t=\frac{-24\pm\sqrt{24^2-4(-4)(13)}}{2(-4)}\\ \\t=\frac{-24\pm\sqrt{576+208}}{-8}\\\\t=\frac{-24\pm\sqrt{576+208}}{-8}\\\\t=\frac{-24\pm\sqrt{784}}{-8}\\\\t=\frac{-24\pm28}{-8}\\\\t=\frac{-24-28}{-8}\\ \\t=\frac{-52}{-8}\\ \\t=\frac{52}{8}\\\\t=6.5$

So, the amount of seconds that the model rocket stayed above the ground since it left the platform is 6.5 seconds

5 0

2 years ago

Read 2 more answers

The Rapid Delivery Service is considering the expansion of its business into afternoon retail delivery service. This would requi

gladu [14]

Answer: $38,300

Step-by-step explanation:

$28,000 + $10,300 = $38,300

7 0

3 years ago

If YV = 28 in, find the length of vyw

max2010maxim [7]

Answer:

I’m sorry I don’t know

Step-by-step explanation:

3 0

3 years ago

Given 6(x) = (x+41, what is b(-10)?

prisoha [69]

The value of $b(-10)$ is 31

Explanation:

The given expression is $b(x)=x+41$

We need to determine the value of $b(-10)$

The value of $b(-10)$ can be determined by substituting $x=-10$ in the expression $b(x)=x+41$

Thus, we have,

$b(-10)=-10+41$

Adding the terms, we have,

$b(-10)=31$

Thus, the value is 31.

Therefore, the simplified value of the expression by substituting $x=-10$ in the expression $b(x)=x+41$ is 31.

7 0

3 years ago

Find all the zeroes of the equation and show your work<br> -3x^4 + 27x^2 + 1200 = 0

s344n2d4d5 [400]

Answer:i try checking the internet

Step-by-step explanation:

fgnjjjjjjjjcbkm/gijw'

eofsdkm;grfbkm

6 0

3 years ago

Read 2 more answers