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OLEGan [10]
3 years ago
15

(20 Points) Please Help Me This Is For A DBA

Mathematics
1 answer:
Natalija [7]3 years ago
6 0

Answer:

Step-by-step explanation:

For problem #1 identify the coordinates of the point of intersection of the two lines.  This point is (4, 2), and this is the solution to #1.

In problem #2 the lines never cross, and thus we conclude that there is no solution.

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Evaluate each sequence’s related geometric series . 2,8,32,128
kow [346]

Answer:

The general form of geometric series is ⇒  x_{n} = a * r^{n-1}

Where a is the first term and r is the common ratio

The sum of n terms of the geometric series is ⇒ S_{n} = a * (\frac{1-r^n}{1-r} )

For the given geometric series  2, 8, 32, 128

The first term is a = 2

The common ratio r = 8/2 = 32/8 = 128/32 = 4

So, x_{n} = 2 * 4^{n-1}

And the sum of the given terms:

n = 4

∴ S_{n} = 2 * (\frac{1-4^4}{1-4} ) = 2 * (\frac{1-256}{1-4} ) = 2 * (\frac{255}{3} ) = 170

5 0
3 years ago
The volume of water and a rectangle swimming pool can be modeled by the function v(x)=x^3+13x-210. If the depth of the pool is g
S_A_V [24]

Answer:

Required,

L=\frac{3+\sqrt{37}}{2}-\frac{144}{x-3}

W=\frac{3-\sqrt{37}}{2}-\frac{144}{x-3}

Step-by-step explanation:

Given volume and depth respectively,

V(x)=x^3+13x-210 and x-3

To find length and width of the rectanglular swiming pool we know,

Volume=length\timesheight\timesdepth.

Let depth=D=x-3, length=L, width=W, then

V=DLW

x^3+13x-210= LW(x-3)

LW=\frac{x^3+13x-210}{x-3}

After divide we will get x^2-3x-22 with remainder -144.

Thus,

x^3+13x-210=(x^2-3x-22)(x-3)-144=(x-3)LW

Now to find root of,

x^2-3x-144=\frac{3\pm\sqrt{9+88}}{2}=\frac{3\pm \sqrt{37}}{2}

Thus,

L=\frac{3+\sqrt{37}}{2}-\frac{144}{x-3}

W=\frac{3-\sqrt{37}}{2}-\frac{144}{x-3}

5 0
3 years ago
Help me pls I’ll mark you as brain
sammy [17]

Answer:

C

MARK ME BRAINLIST

8 0
3 years ago
Read 2 more answers
What is 33/84 in simplest form? And can you show the work?
yuradex [85]
33/84 in simplest form is 11/28 because you can divide top and bottom by three. Just show that you divided both numbers by three and then you will get 11/28. 
4 0
3 years ago
Determine the lowest common denominator of the following rational expressions
andreev551 [17]

Answer:

Hi the answer is A, hopefully i helped you

7 0
3 years ago
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