We can write it down as a fraction:

and we can simplify this fraction:
=

=

=

or we can write it as a decimal:
0.1282...
There is a scientific law called the Law of Conservation of Mass, discovered by Antoine Lavoisier in 1785. In its most compact form, it states: matter is neither created nor destroyed. ... the total amount of mass and energy in the universe is constant.
Answer
given radicals
convert them into simplest radical form
a) √49
√49 = \sqrt{7\times 7}
= 7
b) ∛40
∛40 = ![\sqrt[3]{2\times 2\times 2\times 5}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B2%5Ctimes%202%5Ctimes%202%5Ctimes%205%7D)
= 2 ∛5
c) √242
√49 = \sqrt{2\times 11\times 11}
= 11 √2
hence the number are converted into simplest radicals or rational form.
Answer:
D. 70.53
Step-by-step explanation:
To solve this problem, one must use the right angle trigonometric rations. These ratios can be used to describe the ratio between the sides and an angle in a right triangle. Please note, each side is named relative to the angle that one is looking at, thus the same side can acquire different names based on the angle one uses to describe it. The trigonometric ratios are the following:

In this case, one is asked to find the measure of (<CBA), one is given the hypotenuse (the side opposite the right angle), and the side adjacent to this angle. Therefore, one should use the cosine (cos) function to find this angle.

Substitute,

Simplify

Inverse operations,

Compute,
m<CBA = 70.53
Answer:
step-by-step.
x2+3x−4+2x3−2x+5
=x2+3x+−4+2x3+−2x+5
Combine Like Terms:
=x2+3x+−4+2x3+−2x+5
=(2x3)+(x2)+(3x+−2x)+(−4+5)
=2x3+x2+x+1
Answer:
=2x3+x2+x+1