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aleksklad [387]
3 years ago
13

Which equation represents a quadratic function with a leading coefficient of 2 and a constant term of –3?

Mathematics
1 answer:
Elan Coil [88]3 years ago
4 0

Answer:

2x^{2} +bx-3=0

Step-by-step explanation:

General form. A quadratic function f(x) is of the form (ax^2+bx+c) where a,b,c ∈ R or C and a ≠ 0.

We obtain an equation when f(x)=0

⇒ ax^{2} +bx+c=0 is an quadratic equation.

Solution.

Given, a=2,c=-3, but b is not given

Thus the quadratic function with leading coefficient a=2 and constant term c=-3 is given by

f(x)=2x^{2} +bx-3

∴ the required quadratic equation is

2x^{2} +bx-3=0

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Answer:

perimeter= 17/3

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Step-by-step explanation:

for perimeter:

basically you need to add all sides

so to make it easier yo can put the equation in this way

4/3 + 5/3 + 8/3 = (and that gives you) 17/3

given they have common denominator you just add the numbers

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the equation of the area of a triangle is:

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you just need to replace to end up with

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Read 2 more answers
An arithmetic sequence has this recursive formula:
maxonik [38]

An arithmetic sequence can be expressed as explicitly or recursively

The explicit formula of the sequence is a_n = 11 - 4n

<h3>How to determine the explicit formula</h3>

The recursive formula is given as:

a_n = a_{n -1} - 4

a_1 = 7

Substitute 2 for n in a_n = a_{n -1} - 4

a_2 =a_1 - 4

This gives

a_2 =7 - 4

a_2 =3

Calculate the common difference (d)

d = a_2 -a_1

d = 3- 7

d = -4

The explicit formula is then calculated as:

a_n = a_1 + (n - 1)d

This gives

a_n = 7+ (n - 1)*-4

Expand

a_n = 7+4 - 4n

a_n = 11 - 4n

Hence, the explicit formula of the sequence is a_n = 11 - 4n

Read more about arithmetic sequence at:

brainly.com/question/6561461

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3 years ago
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