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Stels [109]
3 years ago
14

Whow we found equation 45n+15

Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0
45n+15
Factor out 15 from the expression

15(3n+1)
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Solve the proportion
Vinvika [58]

Answer:

1.  (3/2)

2. (20)

3. (3)

4. (-9/5)

5. (-8/7)

6. (-2/3), (4)

Step-by-step explanation:

1.                          2.                        3.                          4.

x         3                   12         3               x           1                x + 3        3

/    =    /                     /     =    /                /    =      /                   /     =     /

4         8                   x           5              9           x                   2           5

8x = 12                    60 = 3x                  x² = 9                      5x + 15 = 6

÷8    ÷8                   ÷3    ÷3                   x = √9                          -15     -15

                                                                                                5x = -9

x = (3/2)                   x = 20                  x = 3                           ÷5    ÷5

                                                                                                  x = (-9/5)

5.                             6.

4 - x          3                   1               x - 3

  /       =     /                   /        =        /

 12            7              2x + 1               9

28 - 7x = 36                   9 = 2x^2 - 5x - 3

-28         -28                 + 3                    + 3

                                     12 = 2x^2 - 5x

-7x = 8                          -12                   -12

÷-7   ÷-7

                                       2x^2 - 5x - 12 = 0

x = (-8/7)                      

                                       -b +-√b^2 - 4ac

                                                     /                = -(-5)√-5^2 - 4 (2)(-12)

                                                    2a                                /

                                                                                      2(2)

                                             

                                          = 5-+√121        5 - 11        -6

                                                 /         =        /       =    /       = (-2/3)

                                                -4                 4             4

                                                            =     5 + 11          16

                                                                       /      =       /    = (4)

                                                                      4              4

I hope this helps!

3 0
2 years ago
(20 POINTS AND BRAINLIEST ANSWER!!!)
Snowcat [4.5K]
The first is C. The second is A.
4 0
4 years ago
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Which of the following represents the number of units between -5 and -2 on the number line?
LenKa [72]

Answer:

d) |-5 - (-2)|

..........................

7 0
3 years ago
Plz help wit dis<br> its due today
julia-pushkina [17]

1. Sry, I am confused by this one

2. Positive Integer factors of 196 = 2, 4, 7, 28, 196/2, 2, 7, 7, leaves it with no remainder.

3. Neither

4. Prime

5. Composite

6. 80, 96, 112 (pattern: add 16 each time)

7. 29, 36, 38 (pattern: add 7, add 2 and so on)

Hope this helped!!

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8 0
3 years ago
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I want to know how to get this factored and simplified the easiest way. I know that I can multiply out and then factor but that
Reptile [31]

Answer:

Enter the expression you want to factor in the editor. The Factoring Calculator transforms complex expressions into a product of simpler factors. It can factor expressions with polynomials involving any number of vaiables as well as more complex functions.

Step-by-step explanation:

8 0
3 years ago
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