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AysviL [449]
3 years ago
7

15 POINTS HELP ME PLEASE!!!

Mathematics
2 answers:
Alexxx [7]3 years ago
6 0
-8a-6-10a-2+5a
-18a-6-2+5a
the answer is -13a-8

second

6x-4+3x+8
9x-4+8
the answer is 9x-4
mars1129 [50]3 years ago
4 0

Answer:

-13a -8

9x+4

Step-by-step explanation:

-8a + (-6)- 10a - 2 + 5a

-8a -10a +5a -6-2

Combine like terms

-18a +5a -8

-13a -8


6x - 4 + 3x + 8

6x+3x -4+8

Combine like terms

9x+4



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please help asap what is the answer to this no links please or telling me to download it u will be reported...
Alex73 [517]
(0, 0)

The origin is where the x-axis and the y-axis intersect

6 0
2 years ago
The sum of two numbers is 14. When one number is added to twice the other number, the result is 25. Find the numbers
ELEN [110]

Let x and y be the two numbers. We have:

\begin{cases}x+y=14\\x+2y=25\end{cases}

Subtract the first equation from the second to get

y=11

And deduce

x+11=14 \iff x=3

The two numbers are 3 and 11.

5 0
2 years ago
Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o
tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

The equation is missing in the question.

The equation is,  h=-8t^2+40t  , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

\frac{dh}{dt} =0

Now the differentiating the equation with respect to time t, we get

\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)

\frac{dh}{dt}=-16t+40

For maximum height,  \frac{dh}{dt} =0

So, -16t+40=0

 \Rightarrow 16t=40

\Rightarrow t=\frac{40}{16}

\Rightarrrow t = 2.5

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

7 0
3 years ago
Is y=6/x-2 linear or nonlinear
zhannawk [14.2K]

Answer:

Non linear. It is a curve not a line.

8 0
2 years ago
Read 2 more answers
I need help pleaseeee
Lostsunrise [7]

Answer:A

Step-by-step explanation:

8 0
2 years ago
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