Help me please i’m so far behind and i’m trying to finish before summer ends im freaking out

Mathematics

2 answers:

maw [93]3 years ago

8 0

Answer:

The equation 2.5x -10.5 = 64(0.5^x) is true when x=5

Step-by-step explanation:

we need to solve the equation 2.5x -10.5 = 64(0.5^x)

We have to put the given values of x in the functions f(x) and g(x) and find their values

x f(x) = 2.5x -10.5 g(x) = 64(0.5^x)

2 2.5(2)-10.5 = -5.5 64(0.5^2) = 16

3 2.5(3) - 10.5 = -3 64(0.5^3) = 8

4 2.5(4) - 10.5 = -0.5 64(0.5^4) = 4

5 2.5(5) - 10.5 = 2 64(0.5^5) = 2

6 2.5(6) - 10.5 = 4.5 64(0.5^6) = 1

So, we need to solve the equation 2.5x -10.5 = 64(0.5^x)

This holds when x = 5 as shown in the table above.

frozen [14]3 years ago

3 0

The correct answer is 5
Solve for x by simplifying both sides of the equation, then isolating the variable.
X=5

You might be interested in

The sales of a particular brand of children’s athletic shoes rose from $5,000,000 to $5,800,000. Find the percent of increase in

zzz [600]

Percentage increase = (increase) x 100 / original
Percentage increase = (5,800,000 - 5,000,000) x 100 / (5,000,000)
Percentage increase = 16%

4 0

4 years ago

Read 2 more answers

PLEASE HELP!! Algebra 2 Review !!

Kamila [148]

Answer:

$\frac{28-3i}{26}$

Step-by-step explanation:

For #2, remember that $i=\sqrt{-1}$ , so $i^{2}=-1$ Also, (a+b)(a-b), where a and b are any numbers, (a+b)(a-b)= $a^2-b^2$ . Now, to simplify, or radicalize, a number with surds in the denominator, you have to multiply the denominator by its conjugate. If there is a complex number $a+bi$ , where a and b are any numbers, the conjugate is always $a-bi$ . Lets apply these rules. The conjugate of 4+6i is 4-6i, so do this: