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trapecia [35]
3 years ago
5

How do you find the domain for 7

Mathematics
1 answer:
vodka [1.7K]3 years ago
7 0

h(x) = -5x² + 15x - 3

It's a quadratic function. The domain of quadratic function is the set of all real numbers.

Therefore

D=\mathbb{R}-all real numbers.

You might be interested in
Lake County’s smallest forest preserve is 472 acres. Orange County’s smallest preserve is 482 acres. Find the ratio of the acrea
photoshop1234 [79]

Answer:

Ratio is 236 : 241

Step-by-step explanation:

Lake County’s smallest forest preserve is 472 acres. Orange County’s smallest preserve is 482 acres

Lake County’s smallest forest = 472

Orange County’s smallest = 482

To find ratio we make a fraction

Ratio = Lake County’s  forest / Orange County’s forest

= \frac{472}{482}

Now simplify the fraction

divide top and bottom by 2

\frac{236}{241}

Ratio is 236 : 241

6 0
3 years ago
Read 2 more answers
The ratio between 7 in and 10 ft
motikmotik
7:120 i think thats what its asking
3 0
4 years ago
I NEED ANSWERS ASAP!!! PLEASE
pychu [463]

Answer:

10 in by 48 in

Step-by-step explanation:

The volume (V) of a rectangular solid is calculated as

V = Ah ( A is the area of the base and h the height )

Here h = 3 and V = 1440 , then

3A = 1440 ( divide both sides by 3 )

A = 480 in²

The area of a rectangle = length × breadth

From the give options

10 × 48 = 480 ← is the only option

4 0
3 years ago
Which function has an inverse that is also a function? g(x) = 2x – 3 k(x) = –9x2 f(x) = |x 2| w(x) = –20.
blondinia [14]

The function has an inverse that is also a function is g(x) = 2x – 3.

The correct option is A.

<h3>Inverse function;</h3>

The inverse of a function is the equation where x and y have switched places.

We have to determine

Which function has an inverse that is also a function?

If when you solve for y again, the function passes the vertical line test, the inverse if a function.

1. Here g(x) = 2x - 3 has inverse x = 2y - 3 which simplifies to;

\rm y=\dfrac{(x-3)}{2}

This is a line and is a function;

\rm y=\dfrac{1}{2}x-\dfrac{3}{2}

2. k(x) = -9x^2 has the inverse x = -9y^2 which simplifies to;

\rm y=\sqrt{\dfrac{x}{-9}}

This is a function but only for certain values of x.

3. f(x) = |x+2| is an absolute value function.

All absolute value functions do not have inverses which are functions.

4. w(x) = -20 does not have an inverse which is a function.

Hence, the function has an inverse that is also a function is g(x) = 2x – 3.

To know more about inverse function click the link given below.

brainly.com/question/20663378

5 0
3 years ago
What equation is described below?
Paladinen [302]

Answer:

6×7=42

Step-by-step explanation:

42 is 7 times as many as 6

is means equals and times means multiply

42 = 7*6

Changing the order

6*7 = 42

8 0
4 years ago
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