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Ksivusya [100]
3 years ago
9

Which model represents the factors of 4x²-9?

Mathematics
1 answer:
NeX [460]3 years ago
6 0

Step-by-step explanation:

(

2

x

)

2

−

3

2

=

(

2

x

−

3

)

(

2

x

+

3

)

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What is the solution
lozanna [386]

Answer:

1+1=a a=solution

Step-by-step explanation:

3 0
3 years ago
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Use summation notation to write the series 49 + 54 + 59 +... for 14 terms.
My name is Ann [436]

Answer:

Arithmetic sequence states that a sequence of numbers such that the difference between the consecutive terms is constant.

it is given by:  a_n = a+(n-1)d where a is the first term , n is the number of term and d is the common difference.

Given the series: 49 + 54 + 59+ ......

here, Common difference(d) = 5

First term(a) = 49

by definition we have;

For nth term

a_n = a+(n-1)d

a_n = 49+(n-1)5

a_n =49+5n -5 = 5n + 44

To write the series using summation notation for 14 terms

Summation symbol '\sum'

The series for 14th terms is given by;

\sum_{n=1}^{14}(5n +44)


5 0
3 years ago
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Chase and Emily are buying stools for their patio. They are deciding between 333 heights (table height, bar height, and XL heigh
marysya [2.9K]

Answer:

The sample space is:

  • (T,N): table height and brown
  • (T, W): table height and white
  • (T, K) : table height and black

  • (B, N): bar height and brown
  • (B, W): bar height and white
  • (B, K): bar height and black

  • (X, N): XL height and brown
  • (X, W): XL height and white
  • (W, K): XL height and black

Explanation:

The <em>sample space </em>is the set of all the possible outputs, i.e. the possible different combinations that can be choosen.

Use the letters T, B, and X to represent, respectively, table height, bar height, and XL height,

Use letters N, W, and K to represent, respectively, the colors brown, white and black.

Each combination consists of a height (T, B or X) and a color (N, W, K); thus, your sample space shall have 3 × 3 different combinations. These are:

  • (T,N): table height and brown
  • (T, W): table height and white
  • (T, K) : table height and black

  • (B, N): bar height and brown
  • (B, W): bar height and white
  • (B, K): bar height and black

  • (X, N): XL height and brown
  • (X, W): XL height and white
  • (W, K): XL height and black
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3 years ago
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48. Calculate the number of sides of a regular polygon whose interior angle is
Debora [2.8K]

the answer is B. 9 sides

8 0
3 years ago
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for triangle ABC find the measure of line a b given measurement of angle a is 55 measurement of angle B is 44 and b equals 68
S_A_V [24]
Use the Law of Sines:
 
  sin B              sin 81         sin 44
 ----------       = ----------- = --------------
  side AC            68            side AB

Then (side AB)(sin 81) = 68(sin 44), or


                                 68 sin 44          
 side AB =        ----------------------- =  47.83 units long
                                    sin 81
3 0
3 years ago
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