All categories

3 years ago

Evaluate the function y=3(1/2)^x for X=-3 A. -18 B. 24 C.9/8 D.-1/6

Mathematics

1 answer:

Inessa [10]3 years ago

4 0

Answer:

Step-by-step explanation:

To evaluate the function, substitute x = -3. Since it is a negative exponent, it will create the reciprocal of the base.

$y = 3 (\frac{1}{2})^x\\\\y = 3 (\frac{1}{2})^{-3}\\\\y = 3 (\frac{2}{1})^3\\y = 3 (2^3)\\y = 3(8)\\y=24$

You might be interested in

Hey everyone. I need the answer to this ASAP!: Michael knows that 2 cans of paint is the exact amount he needs to paint a 10-foo

Ivahew [28]

Answer:

See attachment for graph

Step-by-step explanation:

Given

$2 cans = 10ft\ by\ 12ft$

Required

Graph the relationship between both parameters

First, calculate the area;

$Area = 10ft * 12ft$

$Area = 120ft^2$

This implies that: (2, 120) i.e. 2 cans for 120ft^2.

So we have:

(0,0) and (2,120)

(0,0) implies that: 0 cans for 0 square feet

Calculate the slope:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{120 - 0}{2-0}$

$m = \frac{120 }{2}$

$m = 60$

The equation is:

$y = m(x - x_1) + y_1$

So, we have:

$y = 60 * (x - 0) + 0$

$y = 60 * (x )$

$y = 60 x$

See attachment for graph

4 0

3 years ago

Find the experimental probability Roll dice 1,3,3,4,4 P(1)= I’ll give brainleist

-Dominant- [34]

Answer:

$\mathrm{P(1)\:}=\frac{1}{5}$

Step-by-step explanation:

There are simply 5 possible values in the given set. Out of these, only one of these is the number 1. Therefore, the probability a 1 is drawn (P(1)) is $\fbox{$\frac{1}{5}$}$ .

5 0

3 years ago

Read 2 more answers

Plz help with these 2 questions and thx !

sweet [91]

Answer:

The first is 18.

The second is less than (<).

Step-by-step explanation:

Hope this helps <3

6 0

3 years ago

Read 2 more answers

Help with this Geometry problem please

Andre45 [30]

The answer would be “C” because 4 goes into 8 twice and 12 3 time Than 5 goes into 10 twice and 15 3 times

8 0

4 years ago

Are the expressions below equivilent? 3(4x + 8) 12x + 24

Black_prince [1.1K]

Yes because 3*4x is 12x and 3*8 is 24 so you would get 12x+24

4 0

4 years ago