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
Luda [366]
3 years ago
6

Help me please number 2 and 3

Mathematics
1 answer:
mixas84 [53]3 years ago
3 0
2)

2*120 + 2*3.14*40 = 240 + 251.2 = 491.2;
You might be interested in
HELP PLEASE!!!!! Solve each system.
Ede4ka [16]

15.\ \text{Elimination method}\\\underline{+\left\{\begin{array}{ccc}y=-3x+9\\y=3x+3\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad2y=12\qquad\text{divide both sides by 2}\\.\qquad \boxed{y=6}\\\\\text{put the value of y to the second equation}\\\\6=3x+3\qquad\text{subtract 3 from both sides}\\3=3x\qquad\text{divide both sides by 3}\\1=x\to\boxed{x=1}\\\\Answer:\ x=1,\ y=6\to(1,\ 6)


16.\ \text{Substitution method}\\\left\{\begin{array}{ccc}y=11x+4\\y=7x-16\end{array}\right\Rightarrow11x+4=7x-16\\\\11x+4=7x-16\qquad\text{subtract 4 from both sides}\\11x=7x-20\qquad\text{subtract 7x from both sides}\\4x=-20\qquad\text{divide both sides by 4}\\\boxed{x=-5}\\\\\text{Put the value of x to the first equation}\\\\y=11(-5)+4\\y=-55+4\\\boxed{y=-51}\\\\Answer:\ x=-5,\ y=-51\to(-5,\ -51)

7 0
3 years ago
Read 2 more answers
What is the value of k?
sammy [17]

Answer:

I think the answer is 2.. I'm sorry if its incorrect.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
You can model the entrance to a mine shaft using the equation
Furkat [3]

y=-1/2 2 (x+4)(x+-4+

-1/2*2 = -1

y=-1(x+4)(x-4)

solving for x

x - -4 and x =4

-4 to 4 = 8 feet

 width = 8 feet

4 0
3 years ago
Read 2 more answers
Can someone please explain to me the difference between SAS and SSS in Geometry when dealing with triangle proofs?
ANTONII [103]

Hello from MrBillDoesMath!

Answer:   SAS = side - angle -side    congruence

              SSS  = side - side - side     congruence


Discussion :

In Plane Geometry,  identical triangles are said to be "congruent". There are several ways, depending upon the information you have, to prove 2 triangles are congruent.

In one approach ("SSS") if you can show that 2 triangles have identical side lengths,  then the triangles are congruent. (A triangle has 3 sides, hence "SSS" -- 3 S's; 3 sides, get it?)

In another approach ("SAS") if you can show that 2 sides, and the angle included between those sides, in one triangle are identical to the sides and included angle in another triangle,  then the triangles are congruent

It's easier to understand this with a picture or diagram than in words. Please review the SSS, SAS picture in your textbook

Regards, MrB

7 0
3 years ago
Please help I need this ASAP!
yanalaym [24]

Answer:

nope

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • What’s the domain of this function? PLEASE HELPPPP FASTTTT
    13·1 answer
  • Please help me solve this problem
    13·1 answer
  • Consider f(x) = mx + b where m and b are both non-zero constants. The function g(x) is the inverse of f(x). Which of the followi
    13·2 answers
  • Select the expression equal to square root of 24
    6·1 answer
  • The histogram shows the weights, in pounds, of checked luggage on a flight. The median weight of a checked bag is 27.5 pounds. H
    9·1 answer
  • How to find the measurement of BE and the coordinates of E
    5·1 answer
  • I need help with this
    8·2 answers
  • Use the Pythagorean theorem to find b.<br><br><br><br> b =
    15·2 answers
  • Let n = 5.
    6·1 answer
  • Find all the subsets of each of the following sets. Number 1 is done for you.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!