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Lemur [1.5K]
2 years ago
7

Can someone tell me how to evaluate quadratic equations easily with steps (40 points)

Mathematics
1 answer:
Nookie1986 [14]2 years ago
5 0

Answer:

See below

Step-by-step explanation:

<u>Expansion</u>

f(x)=3(x+6)^2-75\\\\f(x)=3(x+6)(x+6)-75\\\\f(x)=3(x^2+12x+36)-75\\\\f(x)=3x^2+36x+108-75\\\\f(x)=3x^2+36x+33 <-- Stop here if this is what you need

<u>Factorization</u>

<u />f(x)=3(x^2+12x+11)\\\\f(x)=3(x+1)(x+11)

We know from vertex form that the vertex of the parabola is (-6,-75) and when factored, the zeroes are x=-1 and x=-11.

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800 divided by 2 ( 100 points &amp; I give brainliest )
nordsb [41]

Answer:

800÷2=400

Step-by-step explanation:

please mark me brainliest

6 0
2 years ago
Read 2 more answers
Tom and Jason both collect inarables.Tom has collected 233 and Jason has collected 842 marbles.How many marbles do they own toge
vodomira [7]

Answer:

1080 marbles

Step-by-step explanation:

842 marbles + 233 marbles

= 1075 marbles

1075 rounded to the nearest 10 is 1080.

6 0
3 years ago
Alfreda made a container shaped like a triangular prism, as shown in the diagram. What is the volume of the container in cubic i
wel

since there's no picture attached, I worked with the one in the file that I attached in order to enable you to understand what you are expected to do in this sort of circumstance.

Answer:

120cm^2

Step-by-step explanation:

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6 0
3 years ago
Mr. Ophaug earns $100 every 2 hours for tutoring kids in math after school. He is willing to tutor up to 6 hours each week. Crea
son4ous [18]

Answer:

Hello!!

Mr. Ophaug earns $100 every 2 hours for tutoring kids in math after school. He is willing to tutor up to 6 hours each week. Create a table of values for this scenario and find the rate of change.

time (h)      money earned

2                 $100

3                 $150

4                 $200

5                 $250

6                 $300

Hope this helps!!

4 0
2 years ago
Read 2 more answers
A - It is not misleading
Dominik [7]
Well, we can clearly see that both axises are labeled. The left axis (often called the y-axis) is labeled Scores and the bottom axis (often called the x-axis) is labeled Students.

The graph doesn't look to be misleading either.

As for the middle statement:
The x-axis doesn't need a scale.
The y-axis is clearly increasing in 5-point intervals.

So, the answer is B. Statement B is not true.
5 0
3 years ago
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