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NARA [144]
3 years ago
14

Find f(-2) for f(x) = 5•3*x

Mathematics
2 answers:
Oksanka [162]3 years ago
8 0

Answer:

The value of f(-2) is 0.56

Step-by-step explanation:

Given the function

f(x)=5.3^x

we have to find the value of f(-2)

f(x)=5.3^x

Put x=-2

f(-2)=5.3^{-2}

f(-2)=5\times \frac{1}{3^2}

f(-2)=\frac{5}{9}=0.5555...\sim 0.56

Hence, the value of f(-2) is 0.56

nirvana33 [79]3 years ago
4 0
Hello!

You put -2 in for x

I don't know whether it is times x or to the power of x so I will do both

5 * 3 * x

5 * 3 * -2 = -30
------------------------------------------------------------------------------------------------------
5 * 3^x

5 * 3^-2

5 * 1/81 = 5/9 or 0.55555

Hope this helps!
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Luis spent $9.50, in which:

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$9.50 = 1.25y + 0.50x

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10 = x + y

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You're answer:

x + y = 10

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hope this helps

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3 years ago
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Step-by-step explanation:

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I hope this helps. Good luck!

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enot [183]

Answer:

B, C, E

Step-by-step explanation:

Answer choice A):

$300 ×  = $75

* This answer choice represents the calculation of discount only and not the final selling price of the bicycle.

Answer choice B):

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* This answer choice represents the calculation of the final selling price of the bicycle.

Answer choice C)

$300 × (1 - ) = $225

* This answer choice represents the calculation of the final selling price of the bicycle.

Answer choice D):

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*This answer choice shows an incorrect equation which neither represents the calculation of the discount nor the final selling price of the bicycle.

Answer choice E):

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4 0
3 years ago
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4 x 12

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for two number to have a sum of -2, the greater number must be the negative number, and both numbers should have be two values apart (ex. 6 and 8, 3 and 5, 12 and 14, etc.). In this case, 8 would have to be negative whereas 6 will be left positive.

and then we check:

-8 x 6 = 48

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5 0
3 years ago
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