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ankoles [38]
3 years ago
6

X + 2x²y + y, using x = 2 and y = 4

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
8 0

Answer: 38

Step-by-step explanation:

(2) + (2(2*2)(4)) + (4)

2+ (2*16) + 4

2+32+4

38

ivann1987 [24]3 years ago
7 0

Answer:

38

Step-by-step explanation:

Evaluate x + 2 x^2 y + y where x = 2 and y = 4:

x + 2 x^2 y + y = 2 + 2×2^2×4 + 4

2^2 = 4:

2 + 2×4×4 + 4

2×4 = 8:

2 + 8×4 + 4

8×4 = 32:

2 + 32 + 4

| 3 | 2

| | 4

+ | | 2

| 3 | 8:

Answer:  38

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zavuch27 [327]

Answer:

1) x=0.465

2) option A.

Step-by-step explanation:

1) The given equation is:

{3}^{x + 2}  = 15We rewrite this as logarithm to get:

x + 2 =  log_{3}(15)

The change of base formula is:

log_{b}(y)  =  \frac{ log(y) }{ log(b) }

We apply the change of base formula on the RHS to get:

x + 2 =  \frac{ log(15) }{ log(3) }

x + 2 =  \frac{1.176}{0.477}

x + 2 = 2.465

Group similar terms:

x = 2.465 - 2.000 = 0.465

2)

From the graph, the logarithmic function approaches negative infinity as x approaches -6.

Therefore the vertical asymptote is x=-6

The graph touches the x-axis at x=-5, therefore the x-intercept is x=-5.

The correct answer is A.

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3 years ago
8 times 2/5 = ??? I'm very confused and I do not know how to simplify. I also need this in simplest form.
sergij07 [2.7K]
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Step-by-step explanation:

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Step-by-step explanation:

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