3 years ago

Which function has an inverse that is also a function? B9X) = x^2+3 d(x) = -9 m(x) = -7x P(x) = X

Mathematics

1 answer:

ohaa [14]3 years ago

7 0

B(x) has an inverse that is also a function.

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A chestnut falls out of a tree 45 feet above the ground. Use the vertical motion model, H=-16t^2+vt+s s to find how long it take

valentinak56 [21]

Answer:

1.7 seconds

Step-by-step explanation:

we have

$H=-16t^2+vt+s$

where

v is the initial velocity (in feet per second)

s represents the initial height (in feet)

In this problem we have

$v=0$ ---> because the object is dropped

$s=45\ ft$

substitute

$H=-16t^2+45$

Remember that

When the chestnut hit the ground the value of H is equal to zero

For H=0

$-16t^2+45=0$

solve for t

$16t^2=45\\t^2=2.8125\\t=\pm1.7\ sec$

therefore

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3 years ago

Katie is doing an inventory at American Eagle. There is 125 pairs of jeans. 36 pairs of jeans are women's skinny jeans. What per

ZanzabumX [31]

All you have to do is put 36/125. This will get you .288. When rounded to the nearest percent, it is 28%.

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3 years ago

A pitcher throws a 9 kg baseball in a straight line. Its momentum is 2.1 kg-m/s. What is the velocity of the

Zina [86]

Answer:

$0.23\:\mathrm{m/s}$

Step-by-step explanation:

The momentum of an object is given by $p=mv$ , where $m$ is the mass of the object and $v$ is the velocity of the object.

What we're given:

object's mass $m$
object's momentum $p$

Substituting given values, we can solve for $v$ :

$2.1=9v,\\v=\frac{2.1}{9}\approx \boxed{0.23\:\mathrm{m/s}}$

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3 years ago

Help please ?! I need answers really fast

Aleonysh [2.5K]

The value of x in terms of p is 15/p.

The value of x when p is -5 is -3.

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3 years ago

X-intercept = 3, y-intercept = 2

Katen [24]

Answer:

Step-by-step explanation:

(3, 0) (0, 2)

(2-0)/(0-3) = 2/-3= -2/3

y - 0 = -2/3(x - 3)

y = -2/3x + 2

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3 years ago