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zalisa [80]
3 years ago
14

Please help! i'm not good with algebra nor chemistry.

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
7 0
Here :2(6.02*10^23)(3.35*10^-23)

2*6.02*3.35

answer : 4.0334*10^1
hope this helped !
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The value of the definite integral / 212x – sin(x) dx / 122x-sin(x) is
blondinia [14]

Hi there!

\boxed{= 70 + cos(12) - cos(2) \approx 71.26}

\int\limits^{12}_{2} {x-sin(x)} \, dx

We can evaluate using the power rule and trig rules:

\int x^n = \frac{x^{n+1}}{n+1}

\int x = \frac{1}{2}x^{2}

\int -sin(x) = cos(x)

Therefore:

\int\limits^{12}_{2} {x-sin(x)} \, dx = [\frac{1}{2}x^{2}+cos(x)]_{2}^{12}

Evaluate:

(\frac{1}{2}(12^{2})+cos(12)) - (\frac{1}{2}(2^2)+cos(2))\\= (72 + cos(12)) - (2 + cos(2))\\\\= 70 + cos(12) - cos(2) \approx 71.26

3 0
3 years ago
12x+24 is equivalent to 4(3x+6) because...
ANEK [815]

Answer:

you use disputation

Step-by-step explanation:

4 times 3x = 12x

4 times 6 = 24

4 0
3 years ago
a(t)=(t−k)(t−3)(t−6)(t+3) is a polynomial function of tt, where kk is a constant. Given that a(2)=0a(2)=0, what is the absolute
Crank

Since a(2)=0, we know that t-2 must be a factor of a(t), so k=2. Then the zeros of a(t) are t=2,3,6,-3, and their product is -108, whose absolute value is 108.

3 0
3 years ago
The Apple Watch was on sale for $474.60. Find the original price of the Apple Watch if it had been reduced by 30%
kondor19780726 [428]

Answer:616.98

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP !!!
Art [367]
-3•-4=12, and -3+-4=-7.
this will turn into
(x-3)(x-4)
set them up to equal zero
x-3=0, x-4=0
solve
x=3, x=4
(a)
8 0
3 years ago
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