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3 years ago

10

Can someone please help me I have no idea how to do this :(?!

1 answer:

Ainat [17]3 years ago

8 0

Part C: Treat these two expressions as separate functions. Then f(x) = 4^(-x) and g(x) = 2^x + 3. Graph these functions separately on the same set of coordinate axes. Determine the coordinates of the point of intersection of the two graphs. That's your "solution," or at least the x-component of it. To find the y-component, substitute your "solution" into either f(x) or g(x). Write your final solution in the form (x,y).

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Determine whether each of the following products is rational or irrational.

ankoles [38]

Answer:

-irrational

-rational

-rational

-irrational

__________________________________________________________quick and easy way is to see if the squares are perfect squares, like square root seven is irrational, so the answer is irrational. square root 9 is 3, which is rational, so its rational.

brainliest is appreciated :)

6 0

3 years ago

What is the 15th term in the sequence using the given formula?<br><br> yn = 12n-1

Veseljchak [2.6K]

Answer:

Step-by-step explanation:

hello :

yn = 12n-1

the 15th term is :y15 when x= 15

y15 = 12(15)-1

y15 = 179

7 0

3 years ago

Multiply 436.2 × 0.74 = ____

Darya [45]

322.788 is the answer to your ?

7 0

3 years ago

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Sean tossed a coin off a bridge into the stream below. The path of the coin can be represented by the equation 2 h tt = − 16t^2+

tekilochka [14]

Answer:

It will take 5.61 seconds for the coin to reach the stream.

Step-by-step explanation:

The height of the coin, after t seconds, is given by the following equation:

$h(t) = -16t^{2} + 72t + 100$

How long will it take the coin to reach the stream?

The stream is the ground level.

So the coin reaches the stream when h(t) = 0.

$h(t) = -16t^{2} + 72t + 100$

$-16t^{2} + 72t + 100 = 0$

Multiplying by (-1)

$16t^{2} - 72t - 100 = 0$

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

$16t^{2} - 72t - 100 = 0$

So

$a = 16, b = -72, c = -100$

$\bigtriangleup = (-72)^{2} - 4*16*(-100) = 11584$

$t_{1} = \frac{-(-72) + \sqrt{11584}}{2*16} = 5.61$

$t_{2} = \frac{-(-72) - \sqrt{11584}}{2*16} = -1.11$

Time is a positive measure, so we take the positive value.

It will take 5.61 seconds for the coin to reach the stream.

3 0

3 years ago

How much is 5/9 of -3/5?<br><br> A) 1/2<br> B) -1/3<br> C) 1/7<br> D) -25/27

irina1246 [14]

The answer is A 1/2 sorry if I’m wrong if not A its c

5 0

3 years ago

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