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
15

Find the exact circumference, in terms of , of a circle with the given radius.

Mathematics
1 answer:
Grace [21]3 years ago
8 0
By definition, when we say circumference, this is the measure or the distance around the circle. To find the circumference of a circle we use this formula. C = π x the diameter of the circle or C = 2πr . 
Given that the radius is x/2 miles, let us plug in the values.
So C = 2(3.14)(x/2)
C = 6.28 (x/2)
C= 6.28x/2
C = 3.14x
So the circumference of the given circle above would be 3.14x miles. Hope this answer helps.
You might be interested in
Find the difference of -12.7 - (-5.6)<br><br> 17.13<br> -7.13<br> -7.1<br> -8.4
SOVA2 [1]

Answer:

-7.1

Step-by-step explanation:

7 0
3 years ago
: Cho tam giác ABC vuông tại C, trong đó AC = 0,9m, BC = 1,2m. Tính các tỉ số lượng giác của góc B, từ đó suy ra các tỉ số lượng
Xelga [282]

Answer:

Step-by-step explanation:

Vì tam giác ABC vuông tại C nên ta áp dụng định lí pitago=> AB²=AC²+BC²=0.9²+1.5²=3.06=>AB= (3 căn bậc hai của 34)/10

sin B=AC/AB=(3 căn bậc hai của 34)/34

cos B=BC/AB

tan B= AC/BC

cot B= BC/AC

Tương tự suy ra tỉ số lượng giác góc A

5 0
3 years ago
Identify the prime numbers in the following lists
RoseWind [281]
A 5,7,11
B 3
C 17,31
D 61,2
Might be wrong
7 0
2 years ago
Evaluate the expression -4x+5y-14 when x=0 and y= 3/5​
emmainna [20.7K]

Answer:

-11

Step-by-step explanation:

Plug in 0 for x and 3/5 for y into the expression

-4(0) + 5(3/5) - 14

Multiply the numbers inside the parentheses

0 + 3 - 14

3 - 14 = -11, which is your answer

5 0
3 years ago
3x - 2y + 3z = -20<br> 4x - 3y - 2z = 7<br> -5x + 5y + z = 9
skelet666 [1.2K]

Answer:

x= 4 y= 7 z= -6

Step-by-step explanation:

solve for one and you get them all

First, I got rid of the z by multiplying common factors (multiplied z by 2) and added equations 2 and 3 together after multiplying by 2

4x - 3y - 2z = 7

-10x+10y+2z= 18

-6x+7y= 25

Then multiplied z by -3 (to get rid of the z) with the original equation 3

3x - 2y + 3z = -20

15x-15y-3z= -27

18x-17y= -47

Next find common thing between the 2 equations we got and multiply it by that and combine (we can multiply first equation by 3 to get rid of the x and solve for y)

-18x+21y= 75

18x-17y= -47

y=7

Work backwards, substitute 7 into the above equation, you get x= 4 and then same for z to get z= -6

8 0
3 years ago
Other questions:
  • 11 minus the product of 5 and a number k
    9·1 answer
  • Kiana wants to write equations in the form y = mx + b for the lines passing through
    8·1 answer
  • Integrate f(x,y,z)=x over the region in the first octant (x&gt;0, y&gt;0, z&gt;0) above z=y^2 and below z=8-2x^2-y^2
    5·1 answer
  • obtain the value of X for which (X+1),(X-5),(X-2) is a geometric progression.hence find the sum of the first 12 terms of the pro
    15·1 answer
  • 16 cm
    14·1 answer
  • For which rational expression is –2 an excluded value of x?
    14·1 answer
  • Damien is buying his first car for $3,500. If the discount rate is 9%, how much will he pay for his car after the discount?
    9·1 answer
  • Write each equation in slope-intercept form of the equation of a line. Underline the slope and circle the y-intercept in each eq
    14·2 answers
  • WILL MARK BRAINLIEST!!!! BRAINLIEST!<br> Write 206 in base 7
    6·2 answers
  • Calculators cost $12.99 each, rulers cost $0.49 each, pencils cost $0.10 each, and erasers
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!