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IrinaK [193]
2 years ago
9

Please help me if you can it would mean a lot!

Mathematics
1 answer:
finlep [7]2 years ago
6 0
A) 242
B) 1652
C) 118
Hope this helps
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2x^2+15x=8<br>factor or solve as indicated, show all work.<br>please and thank u!​
labwork [276]

Answer:  x= -8  or x = 1/2

Step-by-step explanation:

2x^2 + 15x = 8      Subtract 8 from both sides to let the whole equation equal 0

            - 8     -8

2x^2 + 15x - 8 = 0      Now find two numbers that if you multiply them, their product will be -16 and their sum will be 15. An example is the numbers 16 and -1.     16 times -1 is -16  and 16 plus -1 is 15.

Rewrite the whole equation in this form,

2x^2 +16x - 1x - 8 = 0      Factor on the left side

2x ( x + 8)  -1 (x + 8) = 0     Now factor out x + 8

 

(x + 8) (2x -1) = 0            Set each expression equal zero, because for the whole expression to equation to 0, either one of them or all of them have to equation zero.

x + 8 = 0        or   2x - 1 = 0  

  -8     -8                     +1  +1

   x = - 8                  2x  = 1

                                 x = 1/2

8 0
3 years ago
Question: determine all solutions to the diophantine equation 3x + 7y = 4
yKpoI14uk [10]
The difference between the coefficients 7 and 3 is 4, so one solution is
  y = 1, x = -1.
Then the remaining solutions will be of the form
  x = -7n-1
  y = 3n+1
for some integer n.


_____
Some of the solutions are (for n=0, -1, -2, 1, 2)
(x, y) = (-1, 1), (6, -2), (13, -5), (-8, 4), (-15, 7)
3 0
2 years ago
Which of the ratios below is equivalent to 2:3? Select all that apply.
nataly862011 [7]

Answer:

b and e

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Work this out for points
KengaRu [80]

Answer:

oh god

Step-by-step explanation:

(2 + 6/2, 7 + 3/2)

=(4 , 5)

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3 years ago
2. Oranges cost $x per kilogram and apples cost $(x - 0.6) per kilogram. The total cost of 2 kg of oranges
Veseljchak [2.6K]
The value of x is 5.4 ( find the description in the picture)
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