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nekit [7.7K]
3 years ago
12

!!Look at the photo please!!

Mathematics
1 answer:
Arlecino [84]3 years ago
8 0

Answer:

it is c

Step-by-step explanation:

I have took this test and I got the answer right so that should be right your welcome

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Find the value of x plsss
mafiozo [28]

Answer:

x=10.8

Step-by-step explanation:

9²+6²=c²

81+36=c²

117=c²

√117=10.81

x=10.81

3 0
3 years ago
The rate at which a quantity of a radioactive substance decays is proportional to the quantity of the substance. The constant of
Butoxors [25]

Answer:

\frac{dN}{dt} = λN           N(0) = 6

N(t) = N₀e^(λt)

Applying the inital value condition

N(t) = 6e^(λt)

Step-by-step explanation:

Summarizing  the information briefly and stating the  variables in the problem.

t = time elapsed during the decay

N(t) = the amount of the radioactive substance remaining after time t

λ= The constant of proportionality  is called the decay constant or decay rate

Given the initial conditions

N(0) = N₀ = 6

The rate at which a quantity of a radioactive substance decays (\frac{dN}{dt}) is proportional to the quantity of the substance (N)  and λ is the constant of proportionality  is called the decay constant or decay rate :

\frac{dN}{dt} = λN          

N(t) = N₀e^(λt) ......equ 1

substituting the value of  N₀ = 6 into equation 1

N(t) = 6e^(λt)

3 0
3 years ago
There were 120 coats in the clearance sale. During the first week of the sale 55% of the coats were sold. How many
Fynjy0 [20]

Answer:

<em>See below.</em>

Step-by-step explanation:

Divide to turn the percentage into a decimal.

\frac{55}{100} =0.55

Then, multiply the percentage by the total to get the amount.

120*.55=66

<em>Answer: </em>66<em />

<em />

<em>:)</em>

4 0
3 years ago
Read 2 more answers
Use the discriminant to determine the number of real solutions to the quadratic equation.
gulaghasi [49]

Answer:

There are two real and different roots

Step-by-step explanation:

The discriminant is given by b²-4ac

(-12)²-4(70×1)

144-280

136

Now 136>0

5 0
3 years ago
Read 2 more answers
Inverse Function:<br> f-¹ (- 3)<br> f(x) = 6x - 12
sp2606 [1]
       f(x) = 6x - 12
          y = 6x - 12
  y + 12 = 6x - 12 + 12
  <u>y + 12</u> = <u>6x</u>
      6         6
¹/₆y + 2 = x
          y = ¹/₆x + 2
     f⁻¹(x) = ¹/₆x + 2
    f⁻¹(-3) = ¹/₆(-3) + 2
    f⁻¹(-3) = -¹/₂ + 2
    f⁻¹(-3) = 1¹/₂
(x, f⁻¹(x)) = (-3, 1¹/₂)
7 0
3 years ago
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