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g100num [7]
2 years ago
11

Please help me Im lost on this :(​

Mathematics
2 answers:
kkurt [141]2 years ago
7 0

Answer:

C

Step-by-step explanation:

the quadratic formula is

\frac{ - b +  \sqrt{b ^{2} - 4ac} }{2a}

Make the quadratic equal to 0, so it will be 3x^2 + 8x -2=0. Then substitute the values into the equation.

xeze [42]2 years ago
6 0

Answer: C) 3x^2+8x-10=-8

Step-by-step explanation:

3x^2+8x-10x=-8

3x^2+8x-2=0

a=3 b=8 c=-2

Plug it into quadratic formula.

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A nature center charges $35.25
gregori [183]

Answer: 12 yearly admissions and 38 single admissions

Step-by-step explanation:

Let x be yearly membership

Let y be single admission

x+y=50 --> # of tickets sold

35.25x+6.25y=660.50 --> $ of tickets

Use elimination method to solve (multiply equation 1 by -3525 and equation 2 by 100)

-3525x-3525y=-176250

+  3525+625y=66050

-----------------------------------

-2900y=-110200

y=38

Substitute y=38 into equation 1

x+38=50

x=12

Therefore, 12 yearly admissions and 38 single admissions were sold

4 0
3 years ago
Triangle ABC is congruent to triangle XYZ, as shown below.
il63 [147K]

Answer:

the first answer

Step-by-step explanation:

if a and x are the same and a has an angle of 45 degrees that means that x has an angle of 45 degrees

4 0
3 years ago
Read 2 more answers
18) Solve for x. (-2x-6° X )​
aalyn [17]

Answer:

-8x

Step-by-step explanation:

Subtract 6°x from -2x.

3 0
2 years ago
Read 2 more answers
What is the difference between the mean and the median of the following distribution?
natulia [17]
The definition of mean, is to add up all the numbers and divide it by how many numbers there are. So, in this case the mean would be 1+1+1+2+2+2+2+3+3+4+4+4+4+5+5+6+7+7+8+8+9 = 86. You would then take 86 and divide that by 21, and you would get 4.0
The definition of median states to find the middle of the numbers. So the median would be 4. 
So you would just take 4 - 4 = 0. 

0 would be correct.
8 0
3 years ago
Read 2 more answers
Y=-x^2-x-3 find the X intercept for The parabola define by this equation
KengaRu [80]
To find the X intercept make y =0. Then factor out a negative on the side with the equation for each of the terms, so it becomes
0=-(x^2+x+3)
0=(x^2+X+3)
0-3=(x^2+X)
-3=x(X+1)
-3=X, X intercept -3,0
-3=(X+1)
-4=X, X intercept -4,0.
These are possible X intercepts you can check by using quadratic formula as well.
7 0
3 years ago
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