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
KonstantinChe [14]
3 years ago
12

The equation for the circle below is x^2+y^2=4. what is the length of the circle’s radius

Mathematics
1 answer:
Inessa05 [86]3 years ago
6 0
2 because in the equation of a circle it is x^2 + y^2 = r^2, r=radius so you would take the square root of 4, leaving the radius of the circle to be 2.
You might be interested in
If the list price of bicycle is Rs 1000 and it is sold for Rs 900,cfind the list price of the article.
fgiga [73]

Answer:

Accroding to the question my guess for the answer would be 10

Step-by-step explanation:

I solved it like this

1000-900

= 100

=1000/100

=10

6 0
2 years ago
Which is the graph of y= 3/4x-3?<br>Graph C<br>Graph B<br>Graph A<br><br><br><br>​
Brilliant_brown [7]
Graph A because the slope and y intercept is correct on that graph
4 0
3 years ago
Suppose Upper F Superscript prime Baseline left-parenthesis x right-parenthesis equals 3 x Superscript 2 Baseline plus 7 and Upp
Sedaia [141]

It looks like you're given

<em>F'(x)</em> = 3<em>x</em>² + 7

and

<em>F</em> (0) = 5

and you're asked to find <em>F(b)</em> for the values of <em>b</em> in the list {0, 0.1, 0.2, 0.5, 2.0}.

The first is done for you, <em>F</em> (0) = 5.

For the remaining <em>b</em>, you can solve for <em>F(x)</em> exactly by using the fundamental theorem of calculus:

F(x)=F(0)+\displaystyle\int_0^x F'(t)\,\mathrm dt

F(x)=5+\displaystyle\int_0^x(3t^2+7)\,\mathrm dt

F(x)=5+(t^3+7t)\bigg|_0^x

F(x)=5+x^3+7x

Then <em>F</em> (0.1) = 5.701, <em>F</em> (0.2) = 6.408, <em>F</em> (0.5) = 8.625, and <em>F</em> (2.0) = 27.

On the other hand, if you're expected to <em>approximate</em> <em>F</em> at the given <em>b</em>, you can use the linear approximation to <em>F(x)</em> around <em>x</em> = 0, which is

<em>F(x)</em> ≈ <em>L(x)</em> = <em>F</em> (0) + <em>F'</em> (0) (<em>x</em> - 0) = 5 + 7<em>x</em>

Then <em>F</em> (0) = 5, <em>F</em> (0.1) ≈ 5.7, <em>F</em> (0.2) ≈ 6.4, <em>F</em> (0.5) ≈ 8.5, and <em>F</em> (2.0) ≈ 19. Notice how the error gets larger the further away <em>b </em>gets from 0.

A <em>better</em> numerical method would be Euler's method. Given <em>F'(x)</em>, we iteratively use the linear approximation at successive points to get closer approximations to the actual values of <em>F(x)</em>.

Let <em>y(x)</em> = <em>F(x)</em>. Starting with <em>x</em>₀ = 0 and <em>y</em>₀ = <em>F(x</em>₀<em>)</em> = 5, we have

<em>x</em>₁ = <em>x</em>₀ + 0.1 = 0.1

<em>y</em>₁ = <em>y</em>₀ + <em>F'(x</em>₀<em>)</em> (<em>x</em>₁ - <em>x</em>₀) = 5 + 7 (0.1 - 0)   →   <em>F</em> (0.1) ≈ 5.7

<em>x</em>₂ = <em>x</em>₁ + 0.1 = 0.2

<em>y</em>₂ = <em>y</em>₁ + <em>F'(x</em>₁<em>)</em> (<em>x</em>₂ - <em>x</em>₁) = 5.7 + 7.03 (0.2 - 0.1)   →   <em>F</em> (0.2) ≈ 6.403

<em>x</em>₃ = <em>x</em>₂ + 0.3 = 0.5

<em>y</em>₃ = <em>y</em>₂ + <em>F'(x</em>₂<em>)</em> (<em>x</em>₃ - <em>x</em>₂) = 6.403 + 7.12 (0.5 - 0.2)   →   <em>F</em> (0.5) ≈ 8.539

<em>x</em>₄ = <em>x</em>₃ + 1.5 = 2.0

<em>y</em>₄ = <em>y</em>₃ + <em>F'(x</em>₃<em>)</em> (<em>x</em>₄ - <em>x</em>₃) = 8.539 + 7.75 (2.0 - 0.5)   →   <em>F</em> (2.0) ≈ 20.164

4 0
3 years ago
What is the value of the expression shown when x = 5?
sergey [27]
3(2(5)+4)-5
3(10+4)-5
30+12-5
42-5
37
4 0
3 years ago
Mary has an equal number of dimes and quarters. If she has $2.10 in all, how many coins of each does she have?
77julia77 [94]

Answer:

Step-by-step explanation:

4 quarters

1 dime

6 0
3 years ago
Other questions:
  • I need help with my hw in math
    15·2 answers
  • I need help with this question! Quickly please!
    9·1 answer
  • the doctor recommended that Matt increase the number of calories he consumed from 2000 to 2800. By what percent did the number o
    13·1 answer
  • Whoever is the 1st one to answer i u mark u as brainliest
    14·1 answer
  • Rachel is setting up for her birthday . rachel wants to put the same number of chairs around each table . how many chairs will r
    5·1 answer
  • Lin cooked a pot of soup, then put half the soup in the freezer for a while. Now the soup in the pot is hot, and the soup in the
    7·2 answers
  • (x+0.5)^3 Expand the Equation using Pascal’s Triangle and the Binomial Theorem.
    9·1 answer
  • Can someone plz help me
    6·1 answer
  • (a) A box has length 8.0 cm, width 5.0 cm and height 10.0 cm. Find the (1) total surface area of the box; (ii) the volume of the
    11·2 answers
  • (a)The area of a rectangular garden is 8613 m^2 .
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!