What is a number mulitplyed by 8 and added by 6?

Answers

Answer 1

Answer: xy = 8
x + y = 6

x + y = 6
x - x + y = -x + 6
y = -x + 6

xy = 8
x(-x + 6) = 8
x(-x) + x(6) = 8
  -x² + 6x = 8
-x² + 6x - 8 = 0
-1(x²) - 1(-6x) - 1(8) = 0
-1(x² - 6x + 8) = 0
  -1 -1
  x² - 6x + 8 = 0
x² - 4x - 2x + 8 = 0
x(x) - x(4) - 2(x) + 2(4) = 0
x(x - 4) - 2(x - 4) = 0
(x - 2)(x - 4) = 0
  x - 2 = 0 or x - 4 = 0
+ 2 + 2   + 4 + 4
x = 2   or    x = 4

x + y = 6
2 + y = 6
- 2 - 2
y = 4
(x, y) = (2, 4)

or
x + y = 6
4 + y = 6
  - 4 - 4
y = 2
  (x, y) = (4, 2)

The two numbers that add up to 6 and multiply to 8 are 4 and 2.

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Find all the zeros of the equation. 27x2-324=-x4

Answers

Well, if I remember correctly, Zeroes just mean the x values. But I can't tell where your equation breaks apart; like which parts are which parts of the equation

If 3 waves happen in 6 seconds how many happen in 1 second? How do I solve this and what's the answer?

Answers

you would do 3 divided by 6 and that would give you th answer and the answer is 0.5 so that would mean half a wave happens every second

An insurance for an appliance costs $47 and will pay $582 if the insured item breaks plus the cost of the insurance. The insurance company estimates that the proportion 0.06 of the insured items will break.Let X be the random variable that assigns to each outcome (item breaks, item does not break) the profit for the company. A negative value is a loss. The distribution of X is given by the following table.

X 47 -582
p(x) ? 0.06
Complete the table and calculate the expected profit for the company. In other words, find the expected value of X.

Answers

Answer: See explanation!

Step-by-step explanation:

To complete the table, we need to calculate the probability of the item not breaking. Since the proportion of items that break is 0.06, the proportion of items that do not break is 1 - 0.06 = 0.94.

Now we can fill in the table:

X | -582 | 47

p(x) | 0.06 | 0.94

To calculate the expected profit for the company, we multiply each outcome by its corresponding probability and sum the results:

Expected profit = (-582) * 0.06 + 47 * 0.94

Calculating this expression, we find that the expected profit for the company is approximately $3.92.

Therefore, the expected value of X, the random variable representing the profit for the company, is $3.92.

Step-by-step explanation:

I dont know how to do this... Please help :)

Answers

Answer:

i think it is undefined

Step-by-step explanation:

Integers are _____ rational numbers
A. always
B. somtimes
C. never

Answers

Integers are always rational!

A rational number is a number that can be expressed as $(p)/(q)$ , where p and q are both integers.

So each integer can be expressed as $(itself)/(1)$ , which is always rational as "itself" if an integer!

How do i find the unknown side length of a triangle?

Answers

By using Pythagoreans Theorem: a^2 + b^2 = c^2

several ways like somebody said below you can use use pythag assuming u know the other 2 side lengths w/ a^2+b^2=c^2
however if you do not know the other two side lengths you must use trigonometry and sohcahtoa
sin(angle)= the side length opposite the angle to be referred to as O
divided by the longest side length (hypotenuse)or the angle directly across from the 90 degree angle to be referred to as H
cos(angle) the side length adjacent (next to) the known angle to be referred to as A/H
and finally tan(angle)O/A
if you are still having trouble with this id suggest youtubing "get triggy with it" decent video that explains trig pretty well as well as how to find a missing angle rather than a side length
hope this helps -j

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