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Allisa [31]
3 years ago
10

Can someone check if this is right please? If not what is the correct way?

Mathematics
1 answer:
Charra [1.4K]3 years ago
6 0

A, B, and C are the coefficients. They are not the terms as you have written now.

A quadratic equation is in the form Ax^2 + Bx + C. Therefore, A = 1, B = 8, and C = -6.

The axis of symmetry is  found using the equation -b/2a, as you've done. Therefore, the axis of symmetry is -8/2(1) = -4.

Hope this helps!! :)

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6 cm

Step-by-step explanation:

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D) A painting originally priced at $300 sold for $400. x 100 = % increase or decrease? In order from greatest to least:
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(400-300)/300 x 100 = 100/300 x 100 = 33.33% increase
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4x - Зу = -3<br> 4x + y = 17<br> Explain how as well
Jobisdone [24]

Step-by-step explanation:

I will solve your system by substitution.

(You can also solve this system by elimination.)

4x+y=17;4x−3y=−3

Step: Solve4x+y=17for y:

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y=−4x+17

Step: Substitute−4x+17foryin4x−3y=−3:

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(Divide both sides by 16)

x=3

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y=−4x+17

y=(−4)(3)+17

y=5(Simplify both sides of the equation)

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6 0
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. A special safe lets you choose from 9 symbols for a 3-symbol-long pass code. You may enter a symbol any number of times. How m
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The question is an illustration of combination and there are 729 potential pass codes available

<h3>How to determine the number of potential pass codes?</h3>

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From the question, we understand that a symbol may be entered any number of times.

This means that each of the 9 available symbols can be used three times

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Read more about combination at:

brainly.com/question/11732255

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Answer:

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Step-by-step explanation:

1. 75% = 0.75

2. 200 * 0.75 = 150 pens

3 0
3 years ago
Read 2 more answers
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