MATHEMATICS HIGH SCHOOL

James regular r pay is 12 dollars an hour plus time and a half how much is his pay for 40hrs regular time and to hours overtime

Answers

Answer 1

Answer:

Regular pay: $12/hour

Time and a half: $12/hour * 1.5 = $18/hour

40 hours * $12/hour + 2 hours * $18/hour = $480 + $36 = $516

Answer: $516

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Write a function perim that receives the radius r of a circle and calculates and returns the perimeter p of the circle (p = 2 * π * r). a) def perim(r): b) perim(r): c) def perim_circle(r): d) def calculate_perimeter(r):

Answers

Answer:

Write a function perim that receives the radius r of a circle, and calculates and returns the perimeter P of the circle (P = 2 π r). Here are examples of using the function:

>>perimeter = perim(5.3)

perimeter =33.3009

>>fprintf(‘The perimeter is %.1f\n’, perim(4))

The perimeter is 25.1

>>help perim

Calculates the perimeter of a circle

Renewable energy sources, such as biomass, are gaining increasing attention. Biomass energy units include megawatt hours (MWh) and gigajoules (GJ). One MWh is equivalent to 3.6 GJ. For example, 1 cubic meter of wood chips produces 1 MWh.

Step-by-step solution

Step 1 of 3

The perimeter of a circle is,

Here,

r is the radius of the circle and

P is the perimeter of the circle.

Chapter 3, Problem 25E is solved.

View this answer

View a sample solution

Corresponding textbook

MATLAB | 3rd Edition

9780124058767

ISBN:

0124058760

Authors:

Stormy Attaway

Rent | Buy

MATLAB

(3rd Edition)

Solutions for Chapter 3

Problem 25E: Write a function perim that receives

the radius r of a circle, and calculates and returns

the perimeter P of the circle (P = 2 π r). Here are …

Solutions for problems in chapter 3

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Not sure how to solve 2sinxcosx+cosx=0 Could you help?

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$2sinxcosx+cosx=0\n\ncosx(2sinx+1)=0\iff cosx=0\ \vee\ 2sinx+1=0\n\ncosx=0\ \vee\ 2sinx=-1\ /:2\n\ncosx=0\ \vee\ sinx=-(1)/(2)\n\nx=(\pi)/(2)+k\pi\ \vee\ x=-(\pi)/(6)+2k\pi\ \vee\ x=(7\pi)/(6)+2k\pi\ to\ k\in\mathbb{Z}$

What does Descartes's Rule of Signs tell you about the real roots of the polynomial? –2x3 + 3x2 – 5x – 2 = 0 a. There is one positive root and either two or zero negative roots. b. There are either two or zero positive roots, and there are either two or zero negative roots. c. There is one positive root and one negative root. d. There are either two or zero positive roots and one negative root.

Answers

the count the number of times the sign changes
that is how many positive roots there are
if you get a number that is ≥2, then count down by 2's ending at 0

sub -x for x and evaluate
count change in sign again
that is how many negative roots there are
if you get a number that is ≥2, then count down by 2's ending at 0

so

-2x^3+3x^2-5x-2=0
-,+,-,-
1 2
2 or 0 positive roots

x to -x
2x^3+3x^2+5x-2=0
+,+,+,-
1
1 negative root

2 or 0 positive roots and 1 negative root

D is answer

Evaluate the expression. -12 divided by 4 - 6

Answers

I got -9 because u divided -12 by 4 which equals -3 and then subtract 6 and get -9

Answer:

-9

Step-by-step explanation:

Hope this helps.

If each quadrilateral below is a rectangle find the missing measure in #3

Answers

You can solve this exercise as below (View the figure attached):

1.Divide the figure in four equals parts. Now we have 4 rectangles with the same dimensions.
2.Choose the rectangle that has the angle given in the problem, which we will call "α" (α=59°).
3. We must remember that the sum of the internal angles of a triangle is 180°. We have α=59° and the right angle, so we can find the other one, which we will call "β1":
β1=180°-90°-59° β1=31°
4. As we can see in the figure, "α" is alternate interior with α1 (α=α1=59°) and β1 is alternate interior with m∠11 (β1=m∠11=31°).
5. The others rectangles have the same dimensions of the rectangle we chose, so they have the same angles too.
We can notice in the figure that m∠7+m∠8+m∠9+m∠10= 360°

The answer is:
m∠1=59°
m∠2=31°
m∠3=59°
m∠4=31°
m∠5=31°
m∠6=59°
m∠7=118°
m∠8=62°
m∠9=62°
m∠10=118°
m∠11=31°

In your own words, explain the
term midpoint.

Answers

Ok in my own words hmm.

Midpoint to me would be the point in the middle.

I've seen and worked with midpoints on lines and triangles.

So the midpoint would be the point in the middle of a line segment.

Hope this is helpful!

Answer:

It's the center of a line which involves coordinates (x,y) and by defining a line it's made up of multiple coordinates

Step-by-step explanation:

Hope it's helpful

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