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Sloan [31]
3 years ago
12

Which of the following equations is quadratic?

Mathematics
1 answer:
ratelena [41]3 years ago
4 0
Its (x+3)(x+4)=5 , the third one
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Which is Greater 3/4 or 11/16
Elan Coil [88]
\frac{3}{4} = .75
\frac{11}{16} = .6875

\frac{3}{4} \ \textgreater \   \frac{11}{16}
6 0
3 years ago
Read 2 more answers
The decreasing​ population, p, of owls in a national park is being monitored by ecologists and is modeled by the equation p=−0.
n200080 [17]

By solving a quadratic equation, it can be verified that

The owl population will disappear after 329.12 years

What is a quadratic equation?

At first it is important to know about equation

Equation shows the equality between two algebraic expressions by connecting the two algebraic expressions by an equal to sign.

A two degree equation is known as quadratic equation.

Here, a quadratic equation needs to be solved

The decreasing​ population, p, of owls in a national park is being monitored by ecologists and is modeled by the equation p=-0. 4t^2+128t+1,200

For population to disappear, p =0

-0. 4t^2+128t+1,200 = 0\\0.4t^2 -128t - 1200 = 0\\4t^2 - 1280t - 12000 = 0\\4(t^2 - 320 t - 3000) = 0\\t^2 - 320t -3000 = 0\\t = \frac{-(-320)\pm \sqrt{(-320)^2 - 4 \times 1 \times (-3000)}}{2 \times 1}\\t = \frac{320 \pm 338.23}{2}\\t = \frac{320 + 338.23}{2} \ or \ t = \frac{320 - 338.23}{2}\\t = 329.115 \ or \ t = -9.115

But t = -9.115 is not possible as time cannot be negative

So, the owl population will disappear after 329.12 years

To learn more about quadratic equation, refer to the link-

brainly.com/question/1214333

#SPJ4

7 0
1 year ago
An animal shelter wants their ratio of dogs to cats to be 3:2. If the animal shelter has 78 dogs, how many cats should they have
OleMash [197]
The simplest way to do this is to set up equivalent fractions. So, you'd do:

\frac{3}{2} = \frac{78}{x} and then solve for x. 

x=52
4 0
3 years ago
Simplify the expression.<br> 4x+6-7x
podryga [215]

Answer:

-3x+6

Step-by-step explanation:

6 0
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lyndsay has 3 3/4 gallons of paint she plans on using 1 1/4 gallons for each room how many rooms will she be able to paint?
vichka [17]

Answer:

um how can i help

Step-by-step explanation:

7 0
3 years ago
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