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Tanzania [10]
3 years ago
5

Given a quadratic function, f(x) = ax2 + bx + c has a positive leading coefficient and the vertex that has a positive y-coordina

te. Determine the number of real zeros of the function
A. 2 real zeros

B. 1 real zero

C. 1 real zero and 1 imaginary zero

D. 2 imaginary zeros
Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0
The correct answer is A. 2 real zeros.
Komok [63]3 years ago
6 0
As it has a positive leading coefficient the parabola will open upwards.

Also, as the y coordinate of the vertex is positive then the graph will not intersect the x axis at any point(s) ,  so there  can be no real zeroes.

D is the correct choice
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How many moles of oxygen are required to burn 3.0 mole of C10H8 (naphthalene)?
astra-53 [7]

Answer: 36 moles oxygen

Step-by-step explanation:

C10H8 + 12O2 ====》 10CO2 + 4H2O

From the equation of the reaction,

1 mole of napth requires 12 moles of O2

3 moles of napth would require x moles O2

X = (3 * 12) / 1

X = 36 moles of oxygen.

Therefore 3 moles of naphtalene (C10H8) would require 36 moles of oxygen

6 0
3 years ago
___ L = 240 kL ? <br><br> A. 24,000<br> B. 240,000<br> C. 0.240<br> D. 2.4
koban [17]
It's b 240000
I'm sorry if wrong I'm not too good at these things
6 0
3 years ago
Read 2 more answers
HELLLPP ME PLEASSEEE!!!!!
antoniya [11.8K]

The similar circles P and Q can be made equal by dilation and translation

  • The horizontal distance between the center of circles P and Q is 11.70 units
  • The scale factor of dilation from circle P to Q is 2.5

<h3>The horizontal distance between their centers?</h3>

From the figure, we have the centers to be:

P = (-5,4)

Q = (6,8)

The distance is then calculated using:

d = √(x2 - x1)^2 + (y2 - y1)^2

So, we have:

d = √(6 + 5)^2 + (8 - 4)^2

Evaluate the sum

d = √137

Evaluate the root

d = 11.70

Hence, the horizontal distance between the center of circles P and Q is 11.70 units

<h3>The scale factor of dilation from circle P to Q</h3>

We have their radius to be:

P = 2

Q = 5

Divide the radius of Q by P to determine the scale factor (k)

k = Q/P

k = 5/2

k = 2.5

Hence, the scale factor of dilation from circle P to Q is 2.5

Read more about dilation at:

brainly.com/question/3457976

8 0
2 years ago
80 members decreased by 65%
LekaFEV [45]
Do a proportion
65/100= x/80

Cross multiply and divide
80 x 65= 5, 200
5, 200 divided by 100 is 52
52 members left
80-52= 28
Answer is 28 members
5 0
3 years ago
Another fair dice is rolled 300 times. How many times would you expect it to land with a multiple of three on top? I need help t
ira [324]

Answer:

100 times

Step-by-step explanation:

multiples of 3 on a number cube are 3 and 6

probability of rolling a '3' or '6' is 1/6 + 1/6 = 2/6 or 1/3

1/3 x 300 = 100

7 0
3 years ago
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