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DerKrebs [107]
3 years ago
13

Find the solution to 3 ^-x = x^ 3 + x to the nearest tenth.

Mathematics
1 answer:
galben [10]3 years ago
6 0

We can rewrite this by subtracting the right side to get

... 3^(-x) -x^3 -x = 0

A graphing calculator shows this to have a solution near x=0.5.

_____

There are no algebraic means for solving such a combination of exponential and polynomial functions.

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The incomes in a certain large population of college teachers have a Normal distribution, with mean $75,000 and standard deviati
Natali [406]

Answer:

probability that their average salary is more than $77,500 is 0.1587

Step-by-step explanation:

standard error

= 10,000/sqrt(16)

=10,000/4

= 2500 

(77,500 - 75000)/2500

2,500/2500

= 1 

p (z > 1) = .1587

So, the probability that their average salary is more than $77,500 is 0.1587

8 0
3 years ago
Read 2 more answers
Simplidy y square root 6 over 6 square root y​
Contact [7]

Answer:

Step-by-step explanation:

You can multiply the fraction by 6 and then you are able to cancel out and find the simplification

4 0
3 years ago
Think of your favorite spot to get food from. You are going there to get your first meal after quarantine and the meal cost $35.
sveta [45]

Answer:

You will be paying $41.30 in total.

Step-by-step explanation:

The cost of the meal is $35 and you want to leave 18% tip on the meal.

We want to find the total amount that will be paid.

First, we have to find 18% of $35 and then, add it to the original bill ($35).

18% of 35 is:

18/100 * 35 = $6.30

The tip is $6.30, therefore, the total amount paid will be:

$35 + $6.30 = $41.30

You will be paying $41.30 in total.

6 0
3 years ago
The chorus has 30 members. What expression represents the number of ways a group of 6 members can be chosen to do a special perf
RoseWind [281]
The problem uses the concept of Combination where there are number of members chosen from a group and there order is not important. Thus, the expression that would best describe the given above is 30C6 which means the combination of 30 taken 6. The numerical value for this is 593775. 
8 0
3 years ago
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How to solve this one​
ivolga24 [154]

The x,y = -6, -5. Hope this helped, and have a great day! :D

6 0
3 years ago
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