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3 years ago

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Mathematics

2 answers:

vfiekz [6]3 years ago

7 0

Answer:

it would decrease

Step-by-step explanation:

it would decrease because if you're dividing 10 by a number that keeps getting learger, eventually the number will be above 10, making the number get smaller and smaller

solniwko [45]3 years ago

4 0

Answer:

It decreases.

Step-by-step explanation:

10 / d

Lets say that it was 10 / 40, which is 10 divided by 40, 0.25.

Now, it has increased to twice the amount of that.

1 / 80, 10 divided by 80, which is 0.125

So, it decreases.

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2.<br> Which of the functions below is an inverse of the quadratic function f(x) = x2 - 3 ?

mezya [45]

Answer:

the inverse of the quadratic function $f(x) = x^2 - 3$ is $\mathbf{f^{-1}(x)=\pm \sqrt{x+3}}$

Step-by-step explanation:

We need to find inverse of the quadratic function $f(x) = x^2 - 3$

Let

$y=x^2-3$

Replace x and y

$x=y^2-3$

Now, we will solve for y

Adding 3 on both sides

$x+3=y^2-3+3$

$x+3=y^2$

Taking square root on both sides

$\sqrt{y^2}=\sqrt{x+3}\\y=\pm \sqrt{x+3}$

Now replace y with $f^{-1}(x)$

$f^{-1}(x)=\pm \sqrt{x+3}$

So, the inverse of the quadratic function $f(x) = x^2 - 3$ is $\mathbf{f^{-1}(x)=\pm \sqrt{x+3}}$

3 0

2 years ago

If y = 4x, what is y if the x = 5?

GREYUIT [131]

Answer:

Step-by-step explanation:

Substitute x in y = 4x for 5. So now the equations stands as y = (4)(5). 4 times 5 equals 20

5 0

2 years ago

Read 2 more answers

Find the volume of a cylinder whose height is 7 cm and radius is 10 cm

Karolina [17]

Question

find the volume of a cylinder whose height is 7 cm and radius is 10 cmAnswer:soln

volume of cylinder= pie r ^h where pie = 22/7

height=7 cm

radius=10 cm

now,

volume of cylinder= 22/7*10*10*7cm

V≈2199.11cm³

3 0

2 years ago

Find the volume of a cone. Use 3.14 for pie. Rounded answer to the nearest 10th (One decimal place).

zlopas [31]

I believe the correct answer is thirty six point seven

5 0

3 years ago

the average age of 5 students is 9yrs out of them the ages of 4 students are 5,7,8,and 15yrs what is the age of remaining studen

valentinak56 [21]

Answer:

Step-by-step explanation:

Keep in mind that to find the average they would do:

Average = Sum of students' ages / number of students

So to solve this question we should firstly find the sum of all their ages.

To do this you multiply 5 by 9 = 45.

This means 45 is the sum of all 5 students' ages.

Next you are given four students have ages 5 , 7 , 8 and 15.

The sum of their ages are: 5 + 7 + 8 + 15 = 35

This means that the final student has age 45 - 35 = 10 years.

8 0

2 years ago