When x = 8, y = 18. find y when x = 84?

Anybody know the answer to this

Phoenix [80]

Answer:

$x = 2$

Step-by-step explanation:

The blue line represent the full line length.

We can add the parted black segments together and set it equal to the line.

$11 + 6x - 2 = 6x + 9$

$10x + 1 = 6x + 9$

$10x = 6x + 8$

$4x = 8$

$x = 2$

4 0

2 years ago

Can some one help me please

11111nata11111 [884]

Answer:

2x²√13

Step-by-step explanation:

Step 1: When there is multiplication under a square root sign (also called a radical sign), you can rewrite the expression as the product of two square roots, like this...

√(52x^4) can be rewritten as (√52)(√x^4)

Step 2: x^4 = x²x², so it's the same thing as saying (x²)², or "x-squared, squared". Taking the square root of it leaves just x-squared, so this simplifies to

(√52)x²

Step 3: When taking the square root of a number that is not a perfect square, you need to do a factor tree to see if you can break the number up into a product of perfect squares, or a perfect square multiplied by a prime number.

52 is an even number, so we an at least divide by 2.

52/2 is 26, so we have

(26)(2)

2 is a prime number, so we don't break that down any further.

26 is even so it is also divisible by 2,

26/2 is 13, so we have

(13)(2)(2)

which we can write as (13)(4) (groups pairs of numbers together)

(2)(2) is 4, which results in a perfect square, so we can rewrite √52 as

(√4)(√13), since √4 = 2, we simplify this expression to

2√13

So √(52x^4) breaks down to (√52)(√x^4), which further breaks down into

(2√13)(x²)

We simplify the expression to 2x²√13

3 0

3 years ago

The setup fee for a photo book is $35. The papwe is an additional charge of $0.80 per page. What is the greatest number of pages

N76 [4]

Answer:

18 pages

Step-by-step explanation:

18 pages would cost $14.40 and the you add $35 for the setup fee. This makes the total $49.4 and no more pages can be added because it would cost too much.

8 0

3 years ago

Write the decimal as a fraction or a mixed number in simplest form

natka813 [3]

-0.258 is a decimal number in which 2 is at the tenth place, 5 is at the hundredth place and 8 is at the thousandth place.

Therefore, the number in the fraction form is - $-\frac{258}{1000}$