1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elodia [21]
3 years ago
12

The tensile strength of a wrought iron bar varies directly as the square of its diameter. A bar of diameter 2 inches can withsta

nd a load of approx. 360,000 lbs. What load can a bar of diameter 3 inches withstand?
Mathematics
1 answer:
kifflom [539]3 years ago
7 0
640,000 lbs is the answer to this question
You might be interested in
If I have more 15 Pokemon cards than Austin, which expression shows how many |<br>have?​
Nataly_w [17]

Answer:

a+15=x

Step-by-step explanation:

Austin is represented as variable a, and you have 15 more cards.

x is your amount of cards

5 0
2 years ago
Two trains are traveling towards each other at a constant speed. The trains are currently 714 miles from each other. The speeds
shutvik [7]
55mph.

you can solve it using the equation distance=speed x time

your total distance is 714, and you have 2 trains, one traveling some speed, x, and one traveling x+8, both traveling for 7 hours. 
your equation would look like this
714 = x(7) + (x+8)(7)
and you can then solve for x, which would be 47. this is the speed of the slower train, but 47+8=55 with give you the speed of the faster train. 
6 0
3 years ago
Find the product. (m - 5)2
Schach [20]
2m-10?
I hope this helps!
7 0
2 years ago
Read 2 more answers
Please help ASAP IM IN DESPREATE NEED OF HELP
Advocard [28]

Answer:

See the attached image for the graph of the first system.

Step-by-step explanation:

Here's how to graph the first system.

Start with the inequality -y \le -2x-3.  You can make this easier to work with by multiplying through by -1.  Remember to switch the inequality sign when multiplying by a <u>negative</u> number.  OK, you get the inequality

y \ge 2x+3.

The graph will be a half-plane -- all the points on one side of a line.  The line that is the boundary of the half-plane has an equation:  y=2x+3 -- just use an  =  sign instead of the inequality sign.

Graph the line.

The equation of the line is in slope-intercept form:  y = mx + b, so you can tell the y-intercept is 3 and the slope is 2 (think of it as a fraction 2/1).  Graph the line by going to the point (0, 3) -- the y-intercept -- then use the slope 2/1 interpreted as "rise over run" to go up 2 units and right 1 unit, arriving at the point (1, 5).  Draw the line through those points, (0, 3) and (1, 5).

Now you have to decide which side of the line the inequality y \ge 2x+3 is describing. To do this, pick a point which is not on the line, plug its coordinates into the inequality; if the result is true, shade the side of the line the point you picked is on (if false, shade the <u>other</u> side!)

An easy point to pick in this case is the origin, (0, 0).  Put zeros in for x and y in the inequality, and you'll get the statement 0 \ge 2(0)+3 \, \Rightarrow \, 0 \ge 3.  That's <u>false</u>, so shade the side of the line <u>not</u> containing the origin.  In the image below, the shading is in purple.

All right, now for the other inequality, x+2\le 0.  Subtract 2 from both sides and the inequality becomes x \le -2.  This, too, graphs as a half-plane whose boundary line has equation x=-2.  Graph the line.  A line with an equation that has  x  in it but not  y is a vertical line with all its x-coordinates equal to the number on the right side of the equation.  This line is vertical and goes through points such as (-2, 0).

Pick a point <u>not</u> on the line (the origin works again).  Put the coordinates into the inequality to get 0\le -2 which is <u>false</u>.  Shade the side of the vertical line which does <u>not</u> contain the origin.  In the image below, the shading is in black.

Finally,  YAY!  \o/ ,  the solutions to the system are all the points in the plane that got shaded twice.  In the image, they are the cross-hatched points above the purple line and to left of the black line.

Note: If you get a system with three inequalities, you'll be graphing three half-planes and looking for points that got shaded three times!

Note: One of your questions has the inequalities x \ge 0 and y \ge 0 in it.  These two inequalities say that the x and y coordinates are both positive or zero, confining your attention to Quadrant I in the upper-right part of a graph, above the x-axis <u>and</u> to the right of the y-axis.

7 0
3 years ago
Find the slope of 1,3 and 1,-2
svp [43]

Answer:

M=0

Step-by-step explanation:

i did math

7 0
2 years ago
Other questions:
  • Item 3
    7·1 answer
  • michelle drove 325 miles in 5 hours.if she traveled at a steady speed ,how far did she drive per hour
    8·2 answers
  • What is the solution to the system of equations ? 2x-y=7 y=2x+3
    15·1 answer
  • What is the ratio of the number of cherry slices to the number of orange slices in the medium size bag of candy?
    11·1 answer
  • Steve was multiplying 45.9 by 0.1. Which statement is true about the product? A. It will be less than 45.9. B. It will be equal
    14·2 answers
  • Need help on number 12 not 11 plz help
    13·2 answers
  • Plsss help and please dont be scammer
    6·1 answer
  • DO NOT GIVE ME ANY PDFS IF YOU DO I WILL REPORT YOU IF YOU ANSWER CORRECTLY I WILL GIVE YOU BRAINLIEST
    8·1 answer
  • Evaluate: 9 ÷ 3 + 4x6 Your work​
    6·2 answers
  • Describe how to subtract a decimal from a whole number. Use 15 - 12.75 as an example, and determine its solution.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!