2 years ago

Using a calculator.. I need help please .

Mathematics

1 answer:

marin [14]2 years ago

6 0

Answer:

Just input sin(9), sin(30), sin(81), etc.

For this set, you need a scientific calculator or else, you won't be able to answer that. There is a way but that is already obsolete now.

You might be interested in

BEST ANSWER GETS BRAINLIEST!!!!!!!!!!! PLEASE HELP ASAP!!!!!!!!!!

Pani-rosa [81]

4x = 157.2

4x/4 = 157.2/4

x = 39.3

8 0

3 years ago

Express as a fraction in simplest form: 43.5%

valkas [14]

Answer:

43.5/100

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

What are the approximate values of the non-integral roots of the polynomial equation?

irga5000 [103]

Answer:

-4, -2, -3-2i, -3+2i

Step-by-step explanation:

The of the polynomial equation are those values of x, for which f(x)=0.

Consider equation

$f(x)=0\\ \\(x^2+6x+8)(x^2+6x+13)=0$

By zero product property,

$x^2+6x+8=0\ \text{or}\ x^2+6x+13=0$

Solve each equation:

1. $x^2+6x+8=0$

$D=6^2-4\cdot 8=36-32=4\\ \\x_{1,2}=\dfrac{-6\pm \sqrt{4}}{2}=\dfrac{-6\pm 2}{2}=-4,\ -2$

2. $x^2+6x+13=0$

$D=6^2-4\cdot 13=36-52=-16=16i^2\\ \\x_{1,2}=\dfrac{-6\pm \sqrt{16i^2}}{2}=\dfrac{-6\pm 4i}{2}=-3-2i,\ -3+2i$

5 0

3 years ago

Read 2 more answers

Boris is a web developer. His annual gross salary is $45,000. From this, he must pay social security (calculated as 10% of his g

Semenov [28]

Answer: $32,625

Step-by-step explanation:

40,000-10,000 = 35,000 ---> how much is taxed

35,000 x .25 = 8,750 = income tax

45,000 - 8,750 = 36,250

36,250 x .1 = 3,625 ---> social security

45,000 (gross pay) - 8,750 (income tax) - 3,625 = 32, 625

3 0

3 years ago

Read 2 more answers

Betty has 427 oranges and needs to pack them up equally in 23 boxes. How

stellarik [79]

it's 18 with a remainder of 13. I attached a photo that shows the work of it

3 0

2 years ago