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3 years ago

I will give you all five stars ⭐⭐⭐⭐⭐

Mathematics

2 answers:

4vir4ik [10]3 years ago

7 0

Answer:

y-3

Step-by-step explanation:

the x has already been given, so you only need to find y, which as you can see A1 has been moved down by 3

Likurg_2 [28]3 years ago

5 0

Answer:

The answer is Y - 3

Step-by-step explanation:

You would see how much each point is different on the other side fro the Y axis and the Y axis is being subtracted by 3 so the answer is Y-3

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HI decomposes into its elements according to second-order kinetics. What concentration of HI remains from an initial concentrati

Novosadov [1.4K]

Answer:

Therefore (2.30-0.03747)= 2.2625 M of HI remains from an initial concentration of 2.30 M after 4.5 hours.

Step-by-step explanation:

second order reaction: The rate of reaction proportional to the square of the concentration of reactant.

For second order reaction

$k=\frac{x}{ta(a-x)}$

K is rate constant = 1.6×10⁻³M⁻¹hr⁻¹

a = initial concentration of reactant = 2.30 M

a-x = concentration of reactant after t h

t = time = 4.5 h

Putting the values in the above equation,

$1.6\times 10^{-3}= \frac{x}{4.5 \times 2.30 \times (2.30-x)}$

$\Rightarrow 16.56 \times 10^{-3}\times (2.30-x)= x$

$\Rightarrow 16.56 \times 10^{-3}\times 2.30-16.56 \times 10^{-3}\times x= x$

$\Rightarrow (1+16.56 \times 10^{-3}) x=16.56 \times 10^{-3}\times 2.30$

$\Rightarrow x = 0.03747$

Therefore (2.30-0.03747)= 2.2625 M of HI remains from an initial concentration of 2.30 M after 4.5 hours.

4 0

4 years ago

In 2016 there were about 64,500 cinema screens in a country. If about 29.9% of screens in the country were digital 3-D screens,

zhenek [66]

Answer:

Step-by-step explanation:

In 2016 there were about 64,500 cinema screens in a country.

If about 29.9% of screens in the country were digital 3-D screens, we would determine the approximate number of 3D screens by dividing the Percentage of 3D screens by the total percentage of 100 and multiplying by the total number of cinema screens. It becomes

29.9/ 100 × 64500 = 0.299 × 64500

= 19285.5

The number of 3D screens is approximately 19286

6 0

4 years ago

PLEASE ANSWER ASAP! MUST BE CORRECT WITH WITH WITH WITH WITH WITH WWWWWIIIIIIIIIIIIITTTTTTHHHHHH AN EXPLANATION TO GET THE BRAIN

Bogdan [553]

LA=sides (not bases)
LA=2H(L+W)
H=4
L=11
W=7

LA=2*4*(11+7)
LA=8*18
LA=144

answer is 144 cm^2

5 0

4 years ago

Sin(-x)=-sinx for all values x

Allushta [10]