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Orlov [11]
3 years ago
11

Why is 5x-15x=0 not a quadratic equation?

Mathematics
1 answer:
solmaris [256]3 years ago
6 0

Answer:

because the formula for a parabola is f(x)=ax^2+bx+c

Step-by-step explanation:

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Solve for r. You must write your answer in fully simplified form.<br> 2r = -17
Andrew [12]

Answer:

-8 1/2

Step-by-step explanation:

Divide each side by 2

2r/2=r

-17/2= -8 1/2

7 0
4 years ago
PLEASE HELP MEEEEEE
weqwewe [10]

Answer:

f=3

Step-by-step explanation:

The intervals means that angle f is between the quadrant 1.

Using that, we can use this identity

\sin(x)  =  \cos(y)

where x+y=90

22f - 1  +  7f + 4  = 90

29f + 3 = 90

29f = 87

f = 3

4 0
3 years ago
The frequency table shows the scores from rolling a dice<br><br> work out the mean
umka2103 [35]
You have to add all of your frequency’s together and divide by 6 for the 6 scores. your mean would be 2
6 0
3 years ago
Christian’s Gym charges a one-time fee of $50 plus $30 per session for a personal trainer.
nydimaria [60]

Answer: For 10 sessions, the cost of the two plans the same.

Step-by-step explanation:

Let x= Number of sessions.

Given: Christian’s Gym charges a one-time fee of $50 plus $30 per session for a personal trainer.

Total charge for x sessions = 50+30x

Nicole's fitness center charges a yearly fee of $250 plus $10 for each session with a  trainer.

Total charge for x sessions = 250+10x

When both plan charges the same, then

50+30x=250+10x\\\\\Rightarrow\ 30x-10x=250-50\\\\\Rightarrow\ 20x=200\\\\\Rightarrow\ x=10

i.e. For 10 sessions, the cost of the two plans the same.

3 0
3 years ago
PLEASE HELP ME!! THANK YOU!!
Tems11 [23]

9514 1404 393

Answer:

  [-4,3]

Step-by-step explanation:

The domain is the left-right (horizontal) extent of the function. The dots at the end of the continuous line are solid, so the brackets on the interval are square brackets.

The left dot is at x=-4; the right dot is at x=3, so the domain is ...

  [-4,3]

4 0
3 years ago
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