3 years ago

Which of the following functions is quadratic?

Mathematics

2 answers:

jenyasd209 [6]3 years ago

8 0

Answer:

Step-by-step explanation:

charle [14.2K]3 years ago

7 0

Answer:

Step-by-step explanation:

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What are the zeros of (x-2)(x^2-9)

WARRIOR [948]

$(x-2)(x^2-9)=0\iff x-2=0\ or\ x^2-9=0\\\\x-2=0\ \ \ \ |add\ 2\ to\ both\ sides\\\\\boxed{x=2}\\\\x^2-9=0\ \ \ \ |add\ 9\ to\ both\ sides\\\\x^2=9\iff x=\pm\sqrt9\to \boxed{x=-3\ or\ x=3}\\\\Answer:\boxed{x=-3\ or\ x=2\ or\ x=3}$

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3 years ago

A movie theater is holding a contest for people who are in line before 10 p.m. The people who are within three places of the 99

pav-90 [236]

Answer:

|x-99|<3

Step-by-step explanation:

|x-99|<3

4 0

4 years ago

Simplify to create an equivalent expression. 2(3r+7)−(2+r)

tamaranim1 [39]

2(3r+7)−(2+r)

Use distributive property:

6r + 14 - 2 - r

Simplify by combining like terms:

5r +12

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4 years ago

According to the 2000 Census the population of Canton was 7,720. Holly Spring's population was 3,200. Canton's population increa

Kazeer [188]

Firstly, the rate of increase of Canton = 80/7720 = 0.010
The rate of increase of HP = 120/3200 = 0.0375
Apply the formula of compound interest==> A =A'(1+i)^n
The population will be equal when the following equality is satisfied

7720(1+0.01)^n = 3200(1+0.0375)^n

or

7720x1.01^n = 3200x1.0375^n

Divide both sides by 3200 ===>(193/80)x1.01^n=1.0375^n

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4 years ago

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8 x 1 5/12 = ????<br><br> Fraction

UNO [17]

For the answer is 10

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3 years ago

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