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Wewaii [24]
3 years ago
10

Help me with this question pleases .

Mathematics
2 answers:
V125BC [204]3 years ago
6 0

Answer:

56

Step-by-step explanation:

2 times 4 = 8

area of a triangle = b/2

so

8 * 12 = 96

96/2 = 48

48 plus 8 = 56

sergey [27]3 years ago
4 0

Answer:

it is D. --------- ----------

========

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If y= 3x + 6, what is the minimum value of (x^3)(y)?
Rainbow [258]

Answer:

Given the statement: if y =3x+6.

Find the minimum value of (x^3)(y)

Let f(x) = (x^3)(y)

Substitute the value of y ;

f(x)=(x^3)(3x+6)

Distribute the terms;

f(x)= 3x^4 + 6x^3

The derivative value of f(x) with respect to x.

\frac{df}{dx} =\frac{d}{dx}(3x^4+6x^3)

Using \frac{d}{dx}(x^n) = nx^{n-1}

we have;

\frac{df}{dx} =(12x^3+18x^2)

Set \frac{df}{dx} = 0

then;

(12x^3+18x^2) =0

6x^2(2x + 3) = 0

By zero product property;

6x^2=0   and 2x + 3 = 0

⇒ x=0 and x = -\frac{3}{2} = -1.5

then;

at x = 0

f(0) = 0

and  

x = -1.5

f(-1.5) = 3(-1.5)^4 + 6(-1.5)^3 = 15.1875-20.25 = -5.0625


Hence the minimum value of (x^3)(y) is, -5.0625






3 0
3 years ago
What is the simplified form of 2/x^2-x - 1/x?
Pachacha [2.7K]

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<u>Step-by-step explanation:</u>

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Answer:

The lateral area of a figure is the area of the non-base faces only.

I hope this helps you!

Step-by-step explanation:

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4 years ago
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zaharov [31]

Answer:

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