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TiliK225 [7]
3 years ago
13

Given f (x) = 2 x + 9 f (x) = 15 x=

Mathematics
1 answer:
Elina [12.6K]3 years ago
6 0

Answer:

3

Step-by-step explanation:

15 minus 9 equals 6. 6 divided by 2 equals 3.

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4x^2-2x-4=0 solve using quadratic formula
MArishka [77]

Answer:

Step-by-step explanation:

Although you can start with 4x^2-2x-4=0, it's just slightly easier to reduce the coefficients.  4x^2-2x-4=0 becomes 2x^2 - x - 2 = 0.

The discriminant (part of the quadratic formula) is b^2 - 4ac.  Using b = -1. a = 1 and c = -2, we get (-1)^2 - 4(2)(-2), or 17.

                                                       -b ± √(b^2 - 4ac)

Then the quadratic formula   x = ---------------------------

                                                                 2a

                                         -(-1) ± √17           1 ± √17

takes on the values  x = -----------------  =  ---------------

                                                  4                      4

4 0
3 years ago
Tim wants to ride his bike for 25 miles or less on some mountains bike trails . The table shows the distance of three different
Basile [38]

yo sup??

the sum of trails taken should be less than 25 miles

Black bear=B

Eagle Ridge=E

Doe Run=D

(btw names sound cool XD)

we will now try different combinations

B+E=7 1/2 ++ 10 1/4 which is clearly less than 25

B+D=7 1/2 + 8 3/4 which also less than 25

E+D=10 1/4 + 8 3/4 which is also less than 25

B+D+E=7 1/2 + 10 1/4 + 8 3/4 which is greater than 25

Therefore only the 1st,2nd and 3rd case are possible

Hope this helps.

7 0
3 years ago
Hi!! can someone help me PLEASE? and DON'T BE AN IP ADDRESS TRACKER!!!!!!!
Artist 52 [7]

Answer:

47,759

Step-by-step explanation:

77+216 x 326 divided by 2

4 0
2 years ago
Read 2 more answers
What statements are true about the ordered pair (7,19) and the system of equations?
Xelga [282]
The ordered pair (7, 19) is only a solution to the first equation, 14-19= -5. the ordered pair is not a solution to the second equation 7 + 57 does not equal 22.
5 0
3 years ago
Julies buys 8.2 pounds of pears for $16<br><br> ABOUT how much do they cost per pound?
RoseWind [281]

Answer:

$1.95 or 2. According to your refrences.

Step-by-step explanation:


4 0
3 years ago
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