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2 years ago

Help me please please

Mathematics

1 answer:

Wittaler [7]2 years ago

6 0

Answer:

It is right

Step-by-step explanation:

Because the hypotenuse must be greater than all the legs, we have that $17$ is the hypotenuse. So, we want to determine if $8^2+15^2=17^2$ .

$8^2=8*8=64\\15^2=15*15=225\\17^2=17*17=289\\225+64=289\\$

This means the triangle is indeed right!

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siniylev [52]

Answer

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Step-by-step explanation

8% of 40 is 3.2

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3 0

3 years ago

If an object is launched at an angle of 28° with an initial velocity of 133 ft./s from a height of 6 feet how many seconds will

Tema [17]

Answer:

Hence after 3.98 sec i.e 4 sec Object will hit the ground .

Step-by-step explanation:

Given:

Height= 6 feet

Angle =28 degrees.

V=133 ft/sec

To Find:

Time in seconds after which it will hit the ground?

Solution:

<em>This problem is related to projectile motion for objec</em>t

First calculate the Range for object and it is given by ,

$R=v^2Sin$ (2Ф)/ $g$

Here R= range g= acceleration due to gravity =9.8 m/sec^2

1m =3.2 feet

So 9.8 m, equals to 9.8 *3.2=31.36 ft

So g=31.36 ft/sec^2. and 2Ф=2(28)=56

$R=133^2*Sin(56)/31.36$

$R=14664.84/31.36$

$R=467.62$ fts

Now using Formula for time and range as

$R=VxT$

Vx is horizontal velocity

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$Vx=133*cos$ (28)

$Vx=117.43$ ft/sec

So above equation becomes as ,

$467.62=117.43*T$

$T=467.62/117.43$

$T=3.98 sec$

T is approximately equals to 4 sec.

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3 years ago

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DiKsa [7]

That’s the same thing I’m on

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Answer:

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Step-by-step explanation:

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Answer:

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2 years ago