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ira [324]
3 years ago
14

What are the possible values of x in -11x2 + 2x = 10?

Mathematics
1 answer:
alukav5142 [94]3 years ago
6 0
-11x^2+2x=10\\
-11x^2+2x-10=0\\
\Delta=2^2-4\cdot(-11)\cdot(-10)=4-440=-436

\Delta\ \textless \ 0\Rightarrow no real solutions
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8 0
3 years ago
The figure below shows a solid made from stacks of cubes. the answer box shows the same solid viewed from above. for each stack,
a_sh-v [17]

FRONT

left 2     middle 1       right 3

BACK

left 3    middle2       right 3

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6 0
3 years ago
St. Mary's Church is holding a raffle in which 1172 tickets have been sold at a cost of $2.00 each. Three prizes will be awarded
aleksandrvk [35]

Answer:

Step-by-step explanation:

Given that St. Mary's Church is holding a raffle in which 1172 tickets have been sold at a cost of $2.00 each.

Three prizes will be awarded: 1 for S500;1 for $250; 1 for $125.

Thus total number of tickets = 1172

Of these prize winning are 3

i.e. Tickets        Prize $     Net win amount            Prob       Net win amt*prob

         1                 500                (500-2) =448          1/1172           448/1172

         1                250                 (250-2) =248          1/1172           248/1172

          1               125                   (125-2) =123            1/1172          123/1172

       1169               0                    (0-2) =    -2             1169/1172    -2338/1172

Expected value = Total                                                                 -1519/1172

=-1.296

4 0
3 years ago
Which inequality represents that −14 more than twice a number is no less than 18?
yuradex [85]
-14>2x>18

Hope this helps!
5 0
2 years ago
Clara has 8 coins worth 17¢. if the coins are all dimes and pennies, how many dimes and pennies does she have?
Sliva [168]
Let x = the number of dimes
Let y =  the number of pennies.

There are 8 coins, therefore
x + y = 8        (1)

The coins are worth 17 cents, therefore
10x + y = 17     (2)

Subtract equation (1) from equation (2).
10x + y - (x + y) = 17 - 8
9x = 9
x = 1

From (1), obtain
y = 8 -x = 8 - 1 = 7

Answer: 1 dime, 7 pennies.

4 0
3 years ago
Read 2 more answers
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