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ivann1987 [24]
4 years ago
6

Find the difference.

Mathematics
2 answers:
34kurt4 years ago
7 0

Answer:

D. 7x2 - 2x + 4

Step-by-step explanation:

5x2 + 2x + 11 - 7 - 4x +2x2

7x2 + 2x + 11 - 7 - 4x

7x2 - 2x + 11 - 7

7x2 - 2x + 4

leonid [27]4 years ago
3 0

\text{Solve:}\\\\(5x^2 + 2x + 11) - (7 + 4x - 2x^2)\\\\5x^2+2x+11-7-4x+2x^2\\\\7x^2+2x+11-7-4x\\\\7x^2-2x+11-7\\\\\boxed{7x^2-2x+4}

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Any help I would really appreciate it
DanielleElmas [232]

Answer:

C and D

Step-by-step explanation:

You can tell if equations have no solution if the variables on both sides of the equation are the same.

Choice C is 10+6x=15+9x-3x. You would combine 9x and -3x, turning the equation into 10+6x=15+6x. Since there is a 6x on both sides, Choice C would have no solution.

The same for Choice D. When you simplify everything there is a 3x on both sides, so it would have no solution.

5 0
3 years ago
A weighted coin has a 0.599 probability of landing on heads. What is the probability that it takes 5 flips for the first head to
natka813 [3]

Answer:

0.411^5 times 0.599

Step-by-step explanation:

0.599 chance of landing on heads.

0.411 chance of not landing on heads.

0.411 times 0.411 times 0.411 times 0.411 times 0.411 (for the 5 flips that do not land on heads) times 0.599 (for the time that it does land on heads).

6 0
3 years ago
4. Emily ate dinner at Geisha. Her total was $17.50. A 8% sales tax was
Ahat [919]

Answer: $22.68

Step-by-step explanation:

17.50 times 0.08 = 1.40

17.50 + 1.40 = 18.90

Now the tip:

18.90 times .2 = 3.78

18.90 + 3.78 = 22.68

5 0
3 years ago
Jamaal bounces on a trampoline. His height, as a function of time, is modeled by y = -6x2 + 20x +4
kykrilka [37]

Answer: The function is no linear

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Rearrange each of the following in slope/y-intercept form, y = mx + b.
attashe74 [19]

Answer:

a.

{ \tt{3x - 6y + 8 = 0}} \\ { \tt{ 6y = 3x - 8}} \\ { \boxed{ \bf{y =  \frac{1}{2} x -  \frac{4}{3} }}}

b.

{ \tt{ - 2x - 5y - 2 = 0}} \\ { \tt{5y =  - 2x + 2}} \\ { \boxed{ \bf{y =   - \frac{ 2}{5} x +  \frac{2}{5} }}}

7 0
3 years ago
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