![\frac{15}{\sqrt{31} - 4}\\\\=\frac{15}{\sqrt{31} - 4} \times \frac{\sqrt{31} + 4}{\sqrt{31}+ 4} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [ \ rationalizing \ the \ denominator \ ]\\\\=\frac{15( \sqrt{31} + 4 )}{(\sqrt{31})^2 - (4)^2} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [ \ (a-b)(a+b) = a^2 - b^2 \ ]\\\\=\frac{15 ( \sqrt{31} + 4)}{31 - 16}\\\\=\frac{15 (\sqrt{31} + 4)}{15}\\\\= \sqrt{31} + 4](/tpl/images/2418/7803/a973f.png)
15 / √31 - 4
can someone just solve this for me please
PLEASE ANSWER ONLY IF YOU ARE SURE els...
Mathematics, 05.07.2021 16:40 Sjanaya853
15 / √31 - 4
can someone just solve this for me please
PLEASE ANSWER ONLY IF YOU ARE SURE else I am out of the class
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 16:10
Which of the following graphs represents the function f(x) = 2^x
Answers: 2
Mathematics, 21.06.2019 21:30
On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.
Answers: 2
Mathematics, 21.06.2019 23:00
Acaterpillar eats 1400\%1400% of its birth mass in one day. the caterpillar's birth mass is mm grams. which of the following expressions could represent the amount, in grams, the caterpillar eats in one day? \
Answers: 1
Mathematics, 22.06.2019 02:30
In 2000 there were 100 rabbits in central park the population increased by 16% each year ? write a function to illustrate the situation. how many rabbits were in central park in 2005 . predict how many rabbits there will be at the end of this year we are in 2018?
Answers: 1
You know the right answer?
Questions
Mathematics, 09.12.2020 02:00
Mathematics, 09.12.2020 02:00
Arts, 09.12.2020 02:00
Mathematics, 09.12.2020 02:00
Mathematics, 09.12.2020 02:00
Mathematics, 09.12.2020 02:00
Mathematics, 09.12.2020 02:00
Mathematics, 09.12.2020 02:00
Mathematics, 09.12.2020 02:00
