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Nookie1986 [14]
3 years ago
14

A ___ equation is a second-degree equation of the form ax^2+bx+c=0 where a ≠ 0​

Mathematics
1 answer:
klasskru [66]3 years ago
6 0

Answer:

A quadratic equation is second degree equation with the standard form ax^2+bx+c=0 as the highest power is 2.

__________________.

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Please help, common assessment quiz question linked with picture
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The dilation is 4. Everything is getting 3 times bigger.
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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
Write this multiplication expression using an exponent: 2 . 2 . 2 = ?
S_A_V [24]

Answer:2^3

Step-by-step explanation:

6 0
3 years ago
Single-tickets sell for $20 each and a couple-tickets for $35 each. A total of 160 tickets are
Alex

Answer:

100 of the 20$ tickets, and 60 of the 35$ tickets

Step-by-step explanation:

20*x + 35*y = 4100

x + y = 160

That means x = 160 - y, put this into the first equation

20(160 - y) + 35y = 4100

3200 - 20y + 35y = 4100

15y + 3200 = 4100

15y = 900

y = 60

Put y = 60 into the second equation and

x + 60 = 160

x = 100

y = 60, x = 100

Double check that this works for both equations to make sure its right

20 * 100 + 35 * 60= 4100

2000 + 2100 = 4100 /Correct

100 + 60 = 160 /Correct

3 0
3 years ago
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