4 years ago

Please could someone help with this one . Thanks I will brainlist

Mathematics

2 answers:

katen-ka-za [31]4 years ago

6 0

The answer is c I hope you get is right !

inessss [21]4 years ago

5 0

The answer to this is the third option choice: Reaches a maximum height of 549 after 5.75 seconds.

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If you multiply 5(2x+3+4y), the answer is ______

Volgvan

Answer:

You don't even need to do the whole question. Just look at 5 times 2x. which is 10x then u get your answer

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3 years ago

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Which expression is not equivalent to 8 · x · 2 · y?<br><br> 16yx<br> 8x + 2y<br> 16xy

IceJOKER [234]

Answer:

8x + 2y.

Step-by-step explanation:

8 . x . 2 . y = 16xy = 16yx

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3 years ago

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Charlie runs ata speed of 3 yards per second. about how many miles per hour does charlie run?

DochEvi [55]

(3 yard/sec) x (3,600 sec/hr) x (1 mile / 1,760 yard) =

(3 x 3,600 / 1,760) (mile/hour) = 6.136... mph (rounded)

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4 years ago

An FM radio station broadcasts at 84 megahertz (MHz). What is the energy of each photon in Joule? Use h = 6.6 * 10 ^ (- 34) * j

iragen [17]

Answer:

$E=5.544*10^{-26} J$

Step-by-step explanation:

The equation for photon energy is given by:

$E=hf$

Where:

$h=Planck\hspace{3}constant=6.6*10^{-34} \\f=Frequency\hspace{3}of\hspace{3}the\hspace{3}wave=84000000Hz$

This equation telling us that the higher the frequency of the photon, the greater its energy. And the longer the photon wavelength, the lower its energy.

So, replacing the data provided in the previous equation:

$E=(6.6*10^{-34} )*(84000000)=5.544*10^{-26} J$

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3 years ago

The system of equations 2y = 14 - 2x and y=-x+ 7 is

Ratling [72]

Answer:

Infinitely many solutions

Step-by-step explanation:

2y=14-2x

y=-x+7

------------

2(-x+7)=14-2x

-2x+14=14-2x

-2x-(-2x)=14-14

-2x+2x=0

0=0

infinitely many solutions

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3 years ago

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