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amid [387]
3 years ago
7

The amount of calories you burn after riding x miles on your bike is represented by the function y=100x. Find the domain of the

function and determine whether it is discrete or continuous.
Mathematics
1 answer:
hammer [34]3 years ago
6 0
The domain is always the x axis
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Is 2 squared between 1.4 and 1.5
Serjik [45]
Yes! 
it will be exactly at 1.41 if you round
5 0
3 years ago
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Verify the identity and explain how cot(x- pi/2)= -tan x
pav-90 [236]

Answer:

First, let's recall some usefull information:

- cot(x) = 1/tg(x) = cos(x)/sin(x)

- tan(x) = sin(x)/cos(x)

We also know that:

- cos(x - pi/2) = sin(x)

- sin(x - pi/2) = -cos(x)

Now we can use those relationships and get:

cot(x - pi/2) = cos(x - pi/2)/sin(x -pi/2) = sin(x)/-cos(x) = -tan(x)

So we have verified the identity, and explained step by step why the identity is true.

8 0
2 years ago
Pls answer this asap
sveticcg [70]

The side of the garden nearest tenth foot is - 9.5 feet

Given:Area of grandma's garden=90 square feet

To find:The length of the side nearest to tenth foot.

Solution:

Area=(side)^2

Side of the garden=√90

Therefore,√90=9.48683298

The sides of the garden are less than 10 feet but more than 9 feet

So,the side of the garden nearest tenth foot is -

9.5 feet

6 0
2 years ago
HELPPPP MEEEEEEEE ! Can you have a right triangle where the lengths of the legs are whole numbers and the length of the hypotenu
MArishka [77]
No, u cant

a^2 + b^2 = c^2.....pythagorean theorem used on only right triangles...where a and b are the legs and c is the hypotenuse

a^2 + b^2 = 23^2
a^2 + b^2 = 529...so u would have to find 2 square numbers that add up to 529. There aren't any.
3 0
3 years ago
Read 2 more answers
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the
sineoko [7]

Answer:

x = $34.45

Step-by-step explanation:

Solution:-

The company makes a profit of $y by selling widgets at a price of $x. The profit model is represented by a parabola ( quadratic ) equation as follows:

                       y = -10x^2 + 689x -6775

We are to determine the profit maximizing selling price ( x )

From the properties of a parabola equation of the form:

                      y = ax^2 + bx + c

The vertex ( turning point ) or maximum/minimum point is given as:

                     x = -\frac{b}{2a} \\\\x = - \frac{689}{2*(-10)} =  \frac{689}{20}\\\\x = 34.45

The profit maximizing selling price of widgets would be x = $34.45.

4 0
2 years ago
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