Mathematics, 11.07.2019 10:00 rakanmadi87

An architect is designing a new building. he makes a model of the building such that the area of the rectangular base is 12x2 - 11x - 5 and the length is 3x + 1. the completed model will be in the shape of a rectangular prism where the volume is given by the polynomial 24x3 - 58x2 + 23x + 15. determine the width and height of the model in terms of x. fill in the values of m and b to complete the expressions. type the width on the first line and the height on the second line

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Answer from: Arealbot

The general formula for the area of a rectangle is as follows, where l represents the length, and w represents the width.

The area of the rectangular base of the model is given by the polynomial 12x2 - 11x - 5. Since the length of the base is 3x + 1, use long division to find the width of the base as follows.

So, the width of the model's base is 4x - 5.

The general formula for the volume of a rectangular prism is as follows, where B represents the area of the base and h represents the height.

The volume of the completed model is given by the polynomial 24x3 - 58x2 + 23x + 15. Since the area of the base of the model is 12x2 - 11x - 5, use long division to find the height of the model as follows.

So, the height of the model is 2x - 3.

Step-by-step explanation:

Answer from: ousvp21

Since, the area of the rectangular base = $12x^{2}-11x-5=0$

We have to determine the width if length is (3x+1)

Let us split the middle terms of the given equation to find its factors.

$12x^{2}-15x+4x-5=0$

Taking common from first, second and third, fourth terms.

= 3x(4x-5)+1(4x-5)

= (3x+1) (4x-5)

Since, (3x+1) is the length of the rectangular base.

Therefore, the width of the rectangular base is (4x-5) units.

Now, Volume of the rectangular prism is given by the polynomial

$24x^{3}-58x^{2}+23x+15 = 0$

We have to find width and height.

Let x = - $\frac{1}{3}$ in the given equation of volume.

We get as, $24(-\frac{1}{3})^{3}-58(-\frac{1}{3})^{2}+23(-\frac{1}{3})+15 = 0$

-135+135=0

Hence, (3x+1) is a factor of the given volume polynomial.

Now, performing long division of the given polynomial by (3x+1),

we get factors as (4x-5) and (2x-3).

So, the width is (4x-5) units and height is (2x-3) units.

Answer from: Quest

step-by-step explanation:

compare

Answer from: Quest

d. 8

step-by-step explanation:

the given radical expression is:

$\sqrt{16}\times \sqrt{4}$

we can rewrite this as:

$(16)^{\frac{1}{2}\times (4)^{\frac{1}{2}$

we express as square numbers to get;

$(4^2)^{\frac{1}{2}\times (2^2)^{\frac{1}{2}$

the exponents will now cancel out to give.

$4\times2=8$

the correct answer is d

What is the value of the radical expression shown below

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An architect is designing a new building. he makes a model of the building such that the area of the...