What is the value of 24 + 32 - 5? A. 6 O B. 9 O C. 12 O D. 17 E. 20

Mathematics

2 answers:

Elodia [21]3 years ago

6 0

That would be 51. Check if you made any mistakes copying it

MissTica3 years ago

4 0

Answer:

Step-by-step explanation:

you don't have that on here so...I don't know how to help you there bud.

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A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th

Iteru [2.4K]

Answer:

8.90 seconds

Step-by-step explanation:

When the rocket hits the ground, its height ( y ) will be zero. This means we can write the equation as:

0 = -16x²+129x+119

So we need to solve that equation:

a = -16

b = 129

c = 119

x = $\frac{-b\frac{+}{-}\sqrt{b^2-4ac} }{2a}$

x₁ = -0.84

x₂ = 8.90

We discard x₁, as it is negative.

So the answer is x₂, 8.90 seconds.

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2 years ago

Trigonometric Identities and Applications? help

Vadim26 [7]

$\bf h=-15cos\left( \frac{2\pi }{5}t \right)\qquad \boxed{h=8}\qquad 8=-15cos\left( \frac{2\pi }{5}t \right)
\\\\\\
\cfrac{8}{-15}=cos\left( \frac{2\pi }{5}t \right)\implies cos^{-1}\left( \frac{8}{-15}\right)=cos^{-1}\left[ cos\left( \frac{2\pi }{5}t \right) \right]
\\\\\\
cos^{-1}\left( \frac{8}{-15}\right)=\cfrac{2\pi }{5}t\implies \cfrac{5}{2\pi }\cdot cos^{-1}\left( \frac{8}{-15}\right)=t\\\\
-------------------------------$

$\bf cos^{-1}\left( \frac{8}{-15}\right)=\stackrel{radians}{\stackrel{II~quadrant}{\approx 2.13}~~,~~\stackrel{III~quadrant}{\approx 4.15}}\qquad \qquad 
t=
\begin{cases}
\frac{5}{2\pi }\cdot 2.13\\\\
\frac{5}{2\pi }\cdot 4.15
\end{cases}$

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2 years ago

What is the value of 2 times 10 to the third power

ankoles [38]

The value is 20,000 because 2x10 equals 20, 20x1,000 equals 20,000

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2 years ago

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My sister asks you guys for help once more! What is the value of 7/10 - 3/6?

nirvana33 [79]

Answer:

Part 1: 10, Part 2: 6