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Serhud [2]
3 years ago
12

What is 5 to the power of negative two

Mathematics
2 answers:
sladkih [1.3K]3 years ago
7 0
The answer is 3 best negative two is -2 so u have 5 - 2 and 3 is your answer
loris [4]3 years ago
6 0
Simplify the expression.Exact Form:<span><span>125/</span><span>125</span></span>Decimal Form:<span>0.04</span>
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Please help me with this. I'm stuck
Anon25 [30]

Answer:

Step-by-step explanation:

7 choose 2    or    

=7! / (7-2)!

=7*6*5*4*3*2*1  /  5*4*3*2*1

=7*6

=42

8 0
3 years ago
Read 2 more answers
Q5. A car is bought for £5000 and sold for £7500.<br> What is the percentage profit?
Nitella [24]

Answer:

50% profit

Step-by-step explanation:

Cost price = £ 5000

Selling price = £ 7500

Profit  = Selling price - cost price

        = 7500 - 5000

       = £ 2500

Profit percentage = \frac{2500}{5000}*100

                             = 50 %

8 0
3 years ago
Solve, be sure to show each step under the original problem for any credit.<br> 1 =k/12 +5
Naya [18.7K]
K = -48

1. subtract 5 from both sides
-4 = k/12

2. multiply 12 from both sides to get k alone
-48 = k


3 0
3 years ago
The number of salmon swimming upstream to spawn is approximated by the following function:
umka2103 [35]

Answer:

The water temperature that produces the maximum number of salmon swimming upstream is approximately 12.305 degrees Celsius.

Step-by-step explanation:

Let S(x) = -x^{3}+2\cdot x^{2}+405\cdot x +4965, for 6 \leq x \leq 20. x represents the temperature of the water, measured in degrees Celsius, and S is the number of salmon swimming upstream to spawn, dimensionless.

We compute the first and second derivatives of the function:

S'(x) = -3\cdot x^{2}+4\cdot x +405 (Eq. 1)

S''(x) = -6\cdot x +4 (Eq. 2)

Then we equalize (Eq. 1) to zero and solve for x:

-3\cdot x^{2}+4\cdot x +405 = 0

And all roots are found by Quadratic Formula:

x_{1} \approx 12.305\,^{\circ}C, x_{2}\approx -10.971\,^{\circ}C

Only the first root is inside the given interval of the function. Hence, the correct answer is:

x \approx 12.305\,^{\circ}C

Now we evaluate the second derivative at given result. That is:

S''(12.305) = -6\cdot (12.305)+4

S''(12.305) = -69.83

According to the Second Derivative Test, a negative value means that critical value leads to a maximum. In consequence, the water temperature that produces the maximum number of salmon swimming upstream is approximately 12.305 degrees Celsius.

5 0
3 years ago
9. The repair order is a legal document because
sesenic [268]

Answer:

C is the correct answer cos it is paid by the customer

7 0
3 years ago
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