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3 years ago

Solve 4^x+2 = 2^x-1. What are the exact and approximate solutions?

Mathematics

2 answers:

Brut [27]3 years ago

7 0

Answer:

C. x = -5 ln 2/ ln 2 = -5

Step-by-step explanation:

Juliette [100K]3 years ago

6 0

Answer:

no solution

Step-by-step explanation:

examples: 4^1 + 2 = 2^ 1 -1 and the answer is 6 = 1 which is not true. So its gonna be hard for them to have a solution.

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Nataly [62]

Answer:

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Step-by-step explanation:

3 0

2 years ago

Can someone help me please.

ANTONII [103]

8. is 16

10. is 5
11. is 10

7 0

2 years ago

Read 2 more answers

Three solutions for the linear equation 4 −3 = 1.

FrozenT [24]

Answer:

(1, 1), (2, 2.333) and (3, 3.666).

Step-by-step explanation:

So, for x = 1, we have:

4*1 - 3y = 1

3y = 3

y = 1

For x = 2, we have:

4*2 - 3y = 1

3y = 7

y = 2.333

For x = 3, we have:

4*3 - 3y = 1

3y = 11

y = 3.666

The points we need to plot is (1, 1), (2, 2.333) and (3, 3.666).

4 0

2 years ago

Andrew needs a ladder to hang hoilday lights. His house is 24ft tall and he has a flower bef that extends 4 ft out from the side

elena-14-01-66 [18.8K]

Answer: $24.33\ ft$

Step-by-step explanation:

You need to draw a Right triangle as the one attached, where "x" is the lenght of a ladder Andrew will need to reach the top and be out of the flower bed.

You must apply the Pythagorean Theorem. This is:

$a^2=b^2+c^2$

Where "a" is the hypotenuse and "b" and "c" are the legs of the Right triangle.

If you solve for "a", you get:

$a=\sqrt{b^2+c^2}$

In this case, you can identify in the figure that:

$a=x\\\\b=24\ ft\\\\c=4\ ft$

Therefore, knowing those values, you can substitute them into $a=\sqrt{b^2+c^2}$ and then you must evaluate, in order to find the value of "x".

This is:

$x=\sqrt{(24\ ft)^2+(4\ ft)^2}\\\\x=24.33 ft$

5 0

3 years ago

A biased coin has a probability of 0.4 of coming up heads. What is the probability that when flipped one hundred times it comes

inn [45]

Using the binomial probability relation ; the probability that an head is obtained at least 50 times is 0.0271

Using the binomial probability relation :

P(x = x) = nCx * p^x * q^(n-x)
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q = 1 - p = 0.6
n = number of trials = 100

P(x ≥ 50) = p(x = 50) + p(x = 51) + ...+ p(x = 100)

Using a binomial probability calculator :

P(x ≥ 100) = 0.0271

Therefore, the probability that atleast 50 heads are obtained in the trial is 0.0271

Learn more :brainly.com/question/12474772

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2 years ago

Solve 4^x+2 = 2^x-1. What are the exact and approximate solutions?​

Solve 4^x+2 = 2^x-1. What are the exact and approximate solutions?