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
Airida [17]
3 years ago
5

Need help like now plssss

Mathematics
2 answers:
77julia77 [94]3 years ago
5 0

Answer:

12.56m

<h3>4th answer is correct</h3>

Step-by-step explanation:

\frac{180}{360}  \times 2\pi \: r

\frac{1}{2}  \times 2 \times \pi \times r \\  = 12.56m

Vlad [161]3 years ago
3 0

Answer:

the answer is attached to the picture

You might be interested in
Find the area of a circle with radius 2cm, leave your answer in terms of pi
vaieri [72.5K]

Answer:

Area = 4 \pi \ cm^2

Step-by-step explanation:

Area = \pi r^2 = \pi \times 2^2  = 4 \pi \ cm^2

5 0
2 years ago
Read 2 more answers
10x-5 9x+2 is my equation and I don’t know how to solve it I really need help,someone please help me solve it.
Ostrovityanka [42]

9514 1404 393

Answer:

  x = 7

Step-by-step explanation:

You solve a linear equation by putting the variable on one side of the equal sign and a constant on the other side. Here, variables and constants are on both sides of the equal sign, so you need to separate them.

The basic idea is that you add the opposite of any term you don't want. Whenever you perform any operation (like "add"), <em>you must do it to both sides of the equation</em>.

We observe that x-terms have coefficients of 10 and 9. We choose to add the opposite of 9x to both sides:

  10 -9x -5 = 9x -9x +2

  x -5 = 2 . . . . simplify

Now, we still have -5 on the left, where we don't want it. So, we add its opposite (+5) to both sides:

  x -5 +5 = 2 +5

  x = 7 . . . . simplify

The solution is x = 7.

_____

<em>Additional comment</em>

If we were to end up with an x-coefficient other than 1, we would divide both sides of the equation by that coefficient. This will leave the x-term with a coefficient of 1.

8 0
2 years ago
Is 400 pints greater or lesser than 100 gallons
larisa [96]
The answer is greater than
3 0
2 years ago
Read 2 more answers
What is 2.5/10 (fraction) simplified?
sladkih [1.3K]

Answer:

-1

—— = -0.25000

 4            

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the y-intercept of the line perpendicular to (1,1) and (-3,-1) and passes through (-3,-2)
marin [14]

Answer:

-8

Step-by-step explanation:

Let's first establish the reference line (the one that the second line will be perpendicular to).  We are told that this line passes through two points:

(1,1) and (-3,-1).

We'll find a line equation using the point slope form format to start:  

(y - y1) = m * (x - x1), where m is the slope and the x and y are from two points.

(x,y) = (1,1)

(x1,y1) = (-3,-1)

Rearrange the equation:

(y - y1) = m * (x - x1)

m = (y - y1)/ (x - x1)

m = (1-(-1))/(1-(-3))

m = 2/4, or 1/2:  The slope is 1/2.    [<u>This is "m."]</u>

We can use the slope-intercept form for this line (y=mx + b) and then calculate b, the y-intercept:

y = (1/2)x + b

Use either of the two given points.  I'll use (1,1) since I have memorized the "1" math tables.

y = (1/2)x + b  

1 = (1/2)(1) + b for (1,1)

b = 1/2

This makes the reference line:  y = (1/2)x+(1/2)

===

The line perpendicular must have a slope that is the negative inverse of (1/2).  This would be -(2/1), or -2.

We can then write y = -2x + b

To find be, enter the one given point for this line:  (-3,-2)

y = -2x + b

-2 = -2(-3) + b

-2 = 6 + b

b = -8

The perpendicular line is thus:

y = -2x - 8

It has a y-intercept of -8

5 0
2 years ago
Other questions:
  • 58:80 as X:360 (Or 58 is to 80 as X is to 360)<br> Help!! Will give 5 stars and thanks!
    6·1 answer
  • Original price is $29.99 markdown 33 1/3%
    7·2 answers
  • It takes 10 minutes to fill a 60-gallon bathing pool. What is the average rate in gallons per hour
    11·1 answer
  • Write the equation of the given line in slope-intercept form:
    9·1 answer
  • Write an equation of the line that passes through a pair of points:
    6·2 answers
  • Simplify the product
    9·1 answer
  • A 3 pound pork loin can be cut into 10 pork chops with equal weight. How many ounces is each pork chop?
    7·1 answer
  • At a discount grocery store, Sally paid $0.80 for an 8-ounce bottle of spring water. What is the cost of the spring water per ou
    5·2 answers
  • 13 in<br> 4 in<br> On a cylinder
    8·1 answer
  • Which inequality is equivalent to 3+4/x&gt;_x+2/x
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!