Brahmagupta's book is the oldest text representing zero

Mathematics

2 answers:

Umnica [9.8K]4 years ago

7 0

Sample Answer from Edge2020.

Understanding zero as a number represented by the symbol 0 enabled mathematicians to have a representation of nothing. Having a digit to represent zero enables mathematics to be more abstract, and allows more complex problems to be solved.

Andreas93 [3]4 years ago

3 0

Answer:

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The measures of the angles RST are given by the expressions in the table.

Softa [21]

To find the value of x, and then find the angles of triangle RST, we first need to set up an equation equal to 180.

First, the equation = 180:

We have 31, x+4, and 3x+9.
What we can do is make an equation in which adds the angles to equal 180.
As so:

31 + x + 4 + 3x + 9 = 180

Combine like terms:

31 + x + 4 + 3x + 9 = 180
44 + x + 3x = 180
44 + 4x = 180

Now, we need to simplify this further by subtracting 44 from each side:

44 - 44 + 4x = 180 - 44
4x = 136

Next, to simplify this equation even further, we need to divide each side by 4 (Resulting in the x being alone on one side of the equation.)

4x / 4 = 136 / 4
x = 136 / 4
x = 34

Awesome! We now know that x = 34!
However, we are not completely finished with this problem. Let's continue.

To find the angles of S and T, we need to substitute 34 in for x:

S:
(x + 4)
(34 + 4)
38 degrees

T:
(3x + 9)
(3(34) + 9)
(102 + 9)
111 degrees

Amazing! We now can conclude all of the angles' measurements:
R = 31
S = 38
T = 111
Also, x = 34.

Hope I could help you out! If my math is wrong or it isn't the answer you were looking for, please let me know!
Have a good one.

8 0

3 years ago

Write an equation to find the amount of interest $450,000 earns in 1 year at a simple interest rate of 3.5%. what is the amount

skelet666 [1.2K]

Answer:

$15750

Step-by-step explanation:

write the rule of simple interest, it's:

I=PRT

P=$450000 R=0.035 T=1

I=450000×0.035×1

I=$15750