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3 years ago

7

SOMEONE PLZ HELP ME ASAP

1 answer:

Marizza181 [45]3 years ago

4 0

Answer:

XW = 4 units

Step-by-step explanation:

Given tanf° = $\frac{2}{1}$ , then

tanf° = $\frac{opposite}{adjacent}$ = $\frac{YW}{XW}$ = $\frac{8}{XW}$ = $\frac{2}{1}$ ( cross- multiply )

2XW = 8 ( divide both sides by 2 )

XW = 4

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Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o

tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

The equation is missing in the question.

The equation is, $h=-8t^2+40t$ , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

$\frac{dh}{dt} =0$

Now the differentiating the equation with respect to time t, we get

$\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)$

$\frac{dh}{dt}=-16t+40$

For maximum height, $\frac{dh}{dt} =0$

So, $-16t+40=0$

$\Rightarrow 16t=40$

$\Rightarrow t=\frac{40}{16}$

$\Rightarrrow t = 2.5$

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

7 0

3 years ago

Which is less, 3 or 30? Explain how you know

r-ruslan [8.4K]

Answer:

3

Step-by-step explanation:

3 is closer to 0

7 0

3 years ago

Read 2 more answers

Help me out! (URGENT) I need help with numbers 1-6 please

Alex Ar [27]

Answer:

Step-by-step explanation:

1. Blank= 5

2. Blank= 10 (I believe)

3. Blank= 8

4. Blank= 13 (I believe)

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4 0

2 years ago

R 2x-6+3=6x-5 please help

frozen [14]

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$2x - 6 + 3 = 6x - 5$

$2x - 3 = 6x - 5$

$6x - 5 = 2x - 3$

Add sides 5

$6x - 5 + 5 = 2x - 3 + 5$

$6x = 2x + 2$

Subtract sides 2x

$- 2x + 6x = - 2x + 2x + 2$

$4x = 2$

Divide sides by 4

$\frac{4x}{4} = \frac{2}{4} \\$

$x = \frac{1}{2} \\$

_________________________________

CHECK :

$2( \frac{1}{2} ) - 3 = 6( \frac{1}{2} ) - 5 \\$

$1 - 3 = 3 - 5$

$- 2 = - 2$

Thus the solution is correct....

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3 0

2 years ago

Read 2 more answers

Write the equation of the line graphed below in slope-intercept form (y=mx+b)?

ioda

Y = -1/2x - 1

Tell me if you need explanation

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2 years ago