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2 years ago

Can someone please help me simplify 13/12

2 answers:

7 0

13/12 Is simplified to its simplest form but you can make it an improper fraction which would be 1 1/12. Hope this helps.

insens350 [35]2 years ago

4 0

remainder 1 denominator 1 numerator 12

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Factor completely 81x8 − 1. (9x4 − 1)(9x4 1) (3x2 − 1)(3x2 1)(9x4 − 1) (3x2 − 1)(3x2 1)(9x4 1) (3x2 − 1)(3x2 1)(3x2 1)(3x2 1).

mojhsa [17]

Answer:

(3x^2 - 1)(3x^2 + 1)(9x^4 + 1).

Step-by-step explanation:

Using the identity for the difference of 2 squares;

a^2 - b^2 = (a - b)(a + b)

we put a^2 = 81x^8 and b^2 = 1 giving

a = 9x^4 and b = 1, so:

81x^8 − 1 = (9x^4 - 1)(9x^4 + 1)

Applying the difference of 2 squares to 9x^4 - 1:

= (3x^2 - 1)(3x^2 + 1)(9x^4 + 1).

4 0

1 year ago

In order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less than two hours in estim

Sonja [21]

Answer:

Step-by-step explanation:

Given that in order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less than two hours in estimating the average time it takes to install tile flooring.

Std deviation =4.5 errors

95% confidence interval = Mean±1.96*std dev

Hence we have

$1.96(\frac{4.5}{\sqrt{n} } )$

$\sqrt{n} \geq 4.41\\n\geq 19.4481$

Sample size should be 20.

8 0

2 years ago

The endpoints of the diameter of a circle are (-7, 3) and (5, 1). What is the center of the circle?

MrMuchimi

Answer: C. (-1, 2)

<u>Step-by-step-explanation:</u>

The center is the midpoint of the endpoints

→ $\bigg(\dfrac{x_1+x_2}{2}$ , $\dfrac{y_1+y_2}{2}\bigg)$

→ $\bigg(\dfrac{-7+5}{2}$ , $\dfrac{3+1}{2}\bigg)$

→ $\bigg(\dfrac{-2}{2}$ , $\dfrac{4}{2}\bigg)$

→ (-1 , 2)

The midpoint is (-1, 2)

8 0

2 years ago

PLEASE HELP. Will pick branliest!

Eddi Din [679]

Answer:

WZ=4

Step-by-step explanation:

2/5=x/10

cross multiply

20=5x

x=4

5 0

2 years ago

Read 2 more answers

What is this !?help please!

vfiekz [6]

Triangle A: Right
Triangle B: I think it’s Obtuse

Sorry if it’s wrong

6 0

2 years ago

Read 2 more answers