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
Simora [160]
3 years ago
8

I need help on these two

Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0

Answer:

For the first one the diameter is 22. Circumference is 69.08. Area is 379.94

Second question is radius is 12. Circumference is 75.36. Area is 452.16

Step-by-step explanation:

Radius = d/2

Diameter = r*2

Circumference = 3.14*d

Area = r^2*3.14

You might be interested in
Find the solutions of the quadratic equation 2x2 + 6x - 2 = 0.
nekit [7.7K]

Sorry didn't know how to write the answer so I just took a screen shot of my answer for you!

6 0
2 years ago
PLS HELP!! AND HURRY!! Find an expression for the nth term ( tn ) in each of the following sequences:
fiasKO [112]

If the pattern continues, so that each term is separated by a distance of 3, then the sequence is given by the recursive rule

\begin{cases}a_1=1\\a_n=a_{n-1}+3&\text{for }n>1\end{cases}

From this definition, we can write a_n in terms of a_1:

a_2=a_1+3

a_3=a_2+3=(a_1+3)+3=a_1+2\cdot3

a_4=a_3+3=(a_1+2\cdot3)+3=a_1+3\cdot3

a_5=a_4+3=(a_1+3\cdot3)+3=a_1+4\cdot3

and so on, up to

a_n=a_1+(n-1)\cdot3

(notice how the subscript on <em>a</em> and coefficient on 3 add up to <em>n</em>)

or

a_n=1+3(n-1)=3n-2

6 0
3 years ago
Pls help it’s due today
IgorLugansk [536]

Answer: y = 2/1x + 2

Step-by-step explanation:

A slope of 2 means rising 2 and run 1 on a graph. This would make x = 2/1. The + 2 allows the line to pass through (0,2) and therefore it will also pass through (-2,-2).

4 0
3 years ago
Find the minimum and maximum of f(x, y, z) = y + 4z subject to two constraints, 2x + z = 4 and x2 + y2 = 1. g
yuradex [85]
L(x,y,z,\lambda_1,\lambda_2)=y+4z+\lambda_1(2x+z-4)+\lambda_2(x^2+y^2-1)

L_x=2\lambda_1+2\lambda_2 x=0\implies\lambda_1+\lambda_2x=0
L_y=1+2\lambda_2y=0
L_z=4+\lambda_1=0\implies\lambda_1=-4
L_{\lambda_1}=2x+z-4=0
L_{\lambda_2}=x^2+y^2-1=0

\lambda_1=-4\implies \lambda_2x=4\implies\lambda_2=\dfrac4x
1+2\lambda_2y=0\implies\lambda_2y=-\dfrac12\implies8y=-x

x^2+y^2=1\implies (-8y)^2+y^2=65y^2=1\implies y=\pm\dfrac1{\sqrt{65}}
y=\pm\dfrac1{\sqrt{65}}\implies x=\mp\dfrac8{\sqrt{65}}
2x+z=4\implies z=4\pm\dfrac{16}{\sqrt{65}}

We have two critical points to consider: \left(-\dfrac8{\sqrt{65}},\dfrac1{\sqrt{65}},4+\dfrac{16}{\sqrt{65}}\right) and \left(\dfrac8{\sqrt{65}},-\dfrac1{\sqrt{65}},4-\dfrac{16}{\sqrt{65}}\right).

At these points, we respectively have a maximum of 16+\sqrt{65} and a minimum of 16-\sqrt{65}.
6 0
3 years ago
Solve the system of equations.
Ipatiy [6.2K]

Answer:

the answer is y= x+7

Step-by-step explanation:

the answer is y= x+7 because you have to move the -2x over to where the 14 is and it becomes positive then you divide 2 by 2x and 14 by 2 then you get the answer

6 0
2 years ago
Read 2 more answers
Other questions:
  • What number is 100,000,000 more than 5,438,724,022
    11·1 answer
  • What is 190 x 173 idk what it is and i have a bunch to do
    10·2 answers
  • I need the answer with steps please​
    13·1 answer
  • the slopes of two lines are 2 and -2. because of this we can conclude these two lines are which of the following?
    13·1 answer
  • HELP AND HURRY!! PRETTY PRETTY PLEASE!!!
    10·1 answer
  • Does dose anyone know how to solve this?
    15·1 answer
  • When a boat travels 75m from the shore, the boat drops an anchor that reaches for
    6·1 answer
  • What is the answer to x - 10 + -6 + 4
    13·1 answer
  • Enter the distance between each pair of islands. Use
    11·1 answer
  • How many feet are in 120 inches?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!