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
bekas [8.4K]
3 years ago
5

Find the area of a circle with the radius of 3. (use 3.14 for pi)

Mathematics
1 answer:
taurus [48]3 years ago
7 0
------------------------------------------------------
Formula
------------------------------------------------------
Area of circle = πr²

------------------------------------------------------
Find Area of circle
------------------------------------------------------
Area of circle = 3.15 x 3²
Area of circle = 28.26 unit²

------------------------------------------------------
Answer: Area = 28.16 unit²
------------------------------------------------------
You might be interested in
How do you write this number using digits?
jasenka [17]
Answer: 506,827

Explanation: Google
4 0
3 years ago
Based on the graph, which inequality is correct for a number that is to the right of -3?
RSB [31]
Positive infinity is going after three hope this helps
8 0
2 years ago
16+2b-7b subtracting like terms
White raven [17]
It equals 16+5b
2b-7b= 5b
3 0
3 years ago
Read 2 more answers
A dining set is priced at $785. If the sales tax is 9 percent, what is the cost to purchase the dining set? Round to the nearest
VLD [36.1K]

Answer:

$855.65

Step-by-step explanation:

Multiply 785 by 0.09 to get the sales tax amount which is 70.65.

Add the sales tax amount to the price of the dining set to get cost after tax.

4 0
3 years ago
(1 point) (a) Find the point Q that is a distance 0.1 from the point P=(6,6) in the direction of v=⟨−1,1⟩. Give five decimal pla
natima [27]

Answer:

following are the solution to the given points:

Step-by-step explanation:

In point a:

\vec{v} = -\vec{1 i} +\vec{1j}\\\\|\vec{v}| = \sqrt{-1^2+1^2}

    =\sqrt{1+1}\\\\=\sqrt{2}

calculating unit vector:

\frac{\vec{v}}{|\vec{v}|} = \frac{-1i+1j}{\sqrt{2}}

the point Q is at a distance h from P(6,6) Here, h=0.1  

a=-6+O.1 \times \frac{-1}{\sqrt{2}}\\\\= 5.92928 \\\\b= 6+O.1 \times \frac{-1}{\sqrt{2}} \\\\= 6.07071

the value of Q= (5.92928 ,6.07071  )

In point b:

Calculating the directional derivative of f (x, y) = \sqrt{x+3y} at P in the direction of \vec{v}

f_{PQ} (P) =\fracx{f(Q)-f(P)}{h}\\\\

            =\frac{f(5.92928 ,6.07071)-f(6,6)}{0.1}\\\\=\frac{\sqrt{(5.92928+ 3 \times 6.07071)}-\sqrt{(6+ 3\times 6)}}{0.1}\\\\= \frac{0.197651557}{0.1}\\\\= 1.97651557

\vec{v} = 1.97651557

In point C:

Computing the directional derivative using the partial derivatives of f.

f_x(x,y)= \frac{1}{2 \sqrt{x+3y}}\\\\ f_x (6,6)= \frac{1}{2 \sqrt{22}}\\\\f_x(x,y)= \frac{1}{\sqrt{x+3y}}\\\\ f_x (6,6)= \frac{1}{\sqrt{22}}\\\\f_{(PQ)}(P)= (f_x \vec{i} + f_y \vec{j}) \cdot \frac{\vec{v}}{|\vec{v}|}\\\\= (\frac{1}{2 \sqrt{22}}\vec{i} + \frac{1}{\sqrt{22}} \vec{j}) \cdot   \frac{-1}{\sqrt{2}}\vec{i} + \frac{1}{\sqrt{2}} \vec{j}

4 0
3 years ago
Other questions:
  • You put the names of all the students in your class in a paper bag. There are 14 boys and 20 girls. If you draw a name at random
    13·1 answer
  • X-50-64%=288. what does x equal
    8·1 answer
  • Find the equation of the line passing through the pair points (-8,6) (-9,-9). The equation of the line in the form is Ax+By=C.
    8·1 answer
  • Which of the following functions has the same zeros as the graph below?
    12·1 answer
  • Find the first 4 terms of the sequence defined by this rule: f(n)=4n-7
    6·1 answer
  • If the probability it will rain on monday is 3/4
    5·1 answer
  • Abe is buying wrapping paper. He is shopping for the best deal. Drag the rolls of wrapping paper in order from the least to the
    9·1 answer
  • What is 2/5 ×5/6 in simplist form
    10·2 answers
  • Help plsssssss thanksss
    7·1 answer
  • Nov 05,<br> What is an equation of the line that passes through the points (3,-6) and<br> (-7, - 6)?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!