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
Sphinxa [80]
3 years ago
14

Triangle ABC is equilateral. What is the measure of angle B?

Mathematics
1 answer:
Sonbull [250]3 years ago
5 0

Answer:

60

Step-by-step explanation:

Equilateral triangles- all 3 angles are 60

You might be interested in
What is the value of 0.2+0.4 in fraction in lowest terms
mariarad [96]

Answer:

the answer is 3/5

Step-by-step explanation:

if it's correct please mark as brainlest

6 0
3 years ago
Electric charge is distributed over the disk x2 + y2 ≤ 16 so that the charge density at (x, y) is rho(x, y) = 2x + 2y + 2x2 + 2y
professor190 [17]

Answer:

Required total charge is 256\pi coulombs per square meter.

Step-by-step explanation:

Given electric charge is dristributed over the disk,

x^2=y^2\leq 16 so that the charge density at (x,y) is,

\rho (x,y)=2x+2y+2x^2+2y^2

To find total charge on the disk let Q be the total charge and x=r\cos\theta,y=r\sin\theta so that,

Q={\int\int}_Q\rho(x,y) dA                where A is the surface of disk.

=\int_{0}^{2\pi}\int_{0}^{4}(2x+2y+2x^2+2y^2)dA

=\int_{0}^{2\pi}\int_{0}^{4}(2r\cos\theta+2r\sin\theta+2r^2 \cos^{2}\theta+2r^2\sin^2\theta)rdrd\theta

=2\int_{0}^{2\pi}\int_{0}^{4}r^2(\cos\theta+\sin\theta)drd\theta+2\int_{0}^{2\pi}\int_{0}^{4}r^3drd\theta

=\frac{2}{3}\int_{0}^{2\pi}(\sin\theta+\cos\theta)\Big[r^3\Big]_{0}^{4}d\theta+2\int_{0}^{2\pi}\Big[\frac{r^4}{4}\Big]d\theta

=\frac{128}{3}\int_{0}^{2\pi}(\sin\theta+\cos\theta)d\theta+128\int_{0}^{2\pi}d\theta

=\frac{128}{3}\Big[\sin\theta-\cos\theta\Big]_{0}^{2\pi}+128\times 2\pi

=\frac{128}{3}\Big[\sin 2\pi-\cos 2\pi-\sin 0+\cos 0\Big]+256\pi

=256\pi

Hence total charge is 256\pi coulombs per square meter.

3 0
3 years ago
PLS HELP GIVING BRAINLIEST PLS PLS PLSSS
const2013 [10]

Answer:

n°

Step-by-step explanation:

Your selection is correct. Once again, they are alternate angles, meaning they're equal to one another.

5 0
2 years ago
What is the difference between polygons and quadrilaterals?​
julia-pushkina [17]

A polygon cannot have curved sides. Examples of polygons include a triangle, square, rectangle, or any unnamed shape that is closed in, and has straight sides. ... A quadrilateral is a special kind of polygon that has exactly four sides that are all line segments.

...

8 0
3 years ago
Graph -2x = -60 please help I need to finish this assignment.
Cerrena [4.2K]

Answer:

-2x = -60

Isolate x and simplify.

2x = 60

x = 30

Straight vertical line through x=30.

8 0
3 years ago
Other questions:
  • Find the angle measure that makes the statement true. Sin ____° = Cos 37 °
    12·1 answer
  • 1 hour is 550 miles how many miles would 1 hour and 42 minutes be
    8·1 answer
  • Find the exact value of sin(20) using the double-angle formula given: sin(0) = -4/5 , π<0<3π/2
    12·1 answer
  • Sean has to read a book during summer break. He read 144 pages in 3 hours on the way to his grandma's house. If Sean reads at th
    14·1 answer
  • Draw one row of two unit cubes stacked on top of another row of unit cubes
    10·1 answer
  • (x+4)(2x+3)(-x-9)=f(x) find the zeros
    12·1 answer
  • Number is 22 round down to
    9·1 answer
  • Which the on the graph belownastasiopelozero
    9·1 answer
  • Please help me i need answer
    11·1 answer
  • Jim went on a fishing holiday.The histogram shows some ingormation about the weights of the fish he caught.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!