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In-s [12.5K]
3 years ago
11

Solve the exponential equation of 3^x+4=3^9

Mathematics
1 answer:
Pavel [41]3 years ago
6 0
X= 8.99981500..................
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The amount of money in Joe’s savings account is increased by 8% each year. Given that he has £500 in 2016. Work out how much Joe
kramer

Answer: £700

Step-by-step explanation:

SI = prt

SI = 500 x .08 x 5

SI = 200

Amount = 500 + 200 = 700

8 0
3 years ago
Read 2 more answers
After sitting in a refrigerator for a while, a turkey at a temperature of 34 degrees F is placed on the counter and slowly warms
Anton [14]

Answer:

  • k = 0.006
  • T = 48 °F

Step-by-step explanation:

The initial temperature difference of 72 -34 = 38 °F is reduced to a difference of 72 -41 = 31 °F after 35 minutes. The exponential term in the temperature expression could have the factor ...

  (31/38)^(t/35) = e^(-kt)

Taking the natural log, we find ...

  (t/35)ln(31/38) = -kt

  k = ln(38/31)/35 ≈ 0.00581711

To the nearest thousandth, this is ...

  k ≈ 0.006

Using this in the equation for temperature, we have ...

  T = 72 -38e^(-0.006t)

Filling in the desired value for t (80), we find the turkey temperature after 80 minutes to be about

  T = 72 -38e^(-.006×80) = 72 -38e^-.48 ≈ 48.49

  T ≈ 48 °F

The value of k is about 0.006, and the turkey temperature is about 48 °F.

4 0
3 years ago
Anyone know these two questions??
gogolik [260]

1):  Answer  =====>  Letter Choice, (B),  The rate in which you walked home, The slope is the same, as the Rate of Change, In Distance Divided by the Change in Time  =====>    d    =     4   -1/15t(4) / 1/15t

 

2):   The Equation:  d     =       -1/15t     +     4

The more the Number of Minutes:  Larger the Negative Quantity;  ====>   -1/15t

The Larger the Negative Quantity in Equation:  D value is Smaller:

Therefore your Answer ===>  The Distance from home (d), Decreased with Minute Walked (t)  ====>  So, Letter Choice,  (C)



2):   Towards your home, The slope is Negative, and the Distance (y - value), Decreases, as the Time  (x- Values),  Increases. Notice the Slope is Negative, Because, you are getting closer to home.






Hope that helps!!!!                                           : )

7 0
3 years ago
Round to the nearest gram
Natali [406]
7.5 grams, 4 half lives so 120-60-30-15-7.5
4 0
3 years ago
The lowest point in Japan is Hachiro­gata (elevation  ­4m), and the highest point is Mount Fuji (elevation 3,776  m).  What is t
cestrela7 [59]
Elevation of Mount Fuji is: 3776 m
Elevation of Hachirogata: -4m
Difference between them is:
3776m -(-4m)
3780m.
8 0
4 years ago
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