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4 years ago

For what value of x do s 4^x=(1/8)^x+5

Mathematics

1 answer:

andrew-mc [135]4 years ago

3 0

Answer:

x=1.17

Step-by-step explanation:

You might be interested in

A number increased by a% and decreased by 80% is 400. What is the number?

vladimir2022 [97]

Answer:

If we have a given number N, and we increase it by x%, then the new number is:

N + (x%/100%)*N

While if we decrease it by x%, the new number will be:

N - (x%/100%)*N

Now, we know that:

"A number increased by a% and decreased by 80% is 400. What is the number?"

First, we can not solve the problem, because we have two unknown values, the original number and the "a%", which I guess is a typo.

So, to be general with my answer, let's assume that the actual question is:

"A number increased by 50% and decreased by 80% is 400. What is the number?"

Then, if our original number is N and we increase it by 50%, the new number will be:

N + N*(50%/100%)

N + N*0.5

N*(1 + 0.5)

N*(1.5)

Now we decrease it by 80%, and that will be equal to 400, then:

N*1.5 - N*(1.5)*(80%/100%) = 400

N*1.5 - N*1.5*0.8 = 400

N*(1.5 - 1.5*0.8) = 400

N*(0.3) = 400

N = 400/0.3 = 1,333.33...

Remember that this is a kinda general solution, so you can understand how to solve this type of problem.

4 0

3 years ago

Identify the range of the function shown in the graph.

valentinak56 [21]

Answer:

C. -5 ≤ y ≤ 5

General Formulas and Concepts:

Algebra I

Range is the set of y-values that are outputted by function f(x)

Step-by-step explanation:

According to the graph, our y-values span from -5 to 5. Since both are closed dot, they are inclusive in the range:

[-5, 5] or -5 ≤ y ≤ 5

8 0

3 years ago

In bulk, jelly beans cost 18 cents per ounce.

svet-max [94.6K]

2.88 is the answer
..

7 0

3 years ago

Read 2 more answers

Factor x3 + 2x2 + x completely. a. (x+1)^2 b. x(x+1)^2 c. x(x+1)^2

enot [183]

Option B

ANSWER:

The factors of $x^{3}+2 x^{2}+x$ is $x(x+1)^{2}$

SOLUTION:

Given, cubic expression is $x^{3}+2 x^{2}+x$

Now, we have to find the factors of above equation.

To factorize the given equation, follow the below steps:

$\mathrm{x}^{3}+2 \mathrm{x}^{2}+\mathrm{x}$

Since x is common in every term of expression, we can take it as common

$x\left(x^{2}+2 x+1\right)$

“2x” can be rewritten as “x + x”, the above equation becomes,

$x\left(x^{2}+x+x+1\right)$

Taking the common terms out of bracket. we get

x(x (x + 1) + 1 (x + 1))

Taking (x + 1) as common., we get

x ((x + 1)(x + 1))

$x(x+1)^{2}$

Hence, the second option b is correct.

7 0

4 years ago

(4) Please I need helppp

ladessa [460]

Answer:

Step-by-step explanation:

E is the correct answer

5 0

3 years ago