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
LenaWriter [7]
3 years ago
10

Can somebody please explain this to me. it’s timed

Mathematics
1 answer:
VMariaS [17]3 years ago
4 0

Answer:

258 cm PLZ GIVE ME BRAINLIEST

Step-by-step explanation:

Since the chord is given as 80cm, we know from the definition of a chord that it is equidistant to both sides of the circle. Therefore, half the chord is 40. The extension of the center to the chord is perpendicular to the chord(definition of a chord). Therefore, if we connect the center of the circle to the edge of the chord, it's a right triangle. Also the center of the chord is the radius of the circle. Pytharogean theorem: 40^2 + 9^2=r^2   :   1681=r^2:     r=41. The radius is 41. Curcumference of circle: pi*2*r : pi*2*41 : pi*82= 258 cm.

You might be interested in
Jean bought a $1,980 snow thrower on the installment plan. The installment agreement included a 10% down payment and 18 monthly
enyata [817]

Answer:

Jean paid $2,286 for the snow thrower, with a finance charge of $306.

Step-by-step explanation:

Given that Jean bought a $ 1,980 snow thrower through an initial payment of 10% of the initial value, and 18 monthly payments of $ 116, to determine the final price paid by Jean, the following calculation is required:

(1,980 x 0.1) + (18 x 116) = X

198 + 2,088 = X

2,286 = X

Therefore, the final price paid for Jean was $ 2,286.

In turn, the finance charge arises from the difference between the final price and the list price, that is:

2,286 - 1,980 = X

306 = X

Thus, the finance charge is $ 306.

8 0
2 years ago
-6/20+150%<br><br><br><br> Please help I need the answer quickly.
tia_tia [17]
Is this

-6 ÷ 20 + 150%

or is -6/20 a fraction?
7 0
3 years ago
Read 2 more answers
Evaluate 5xyz + 3y for x=2.5, y=12, and z=4
Reika [66]

Answer:

636

Step-by-step explanation:

5xyz+3y

5(2.5)(12)(4)+3(12)

(12.5)(48)+36

600+36

636

8 0
3 years ago
A contradiction has no solutions. True or False?
Eddi Din [679]

Answer:

false

Step-by-step explanation:

6 0
3 years ago
I’ve been stuck on this question for quite some time. I was struggling so I needed help, can you help me?
Crank
I can’t see all the question !!
3 0
3 years ago
Read 2 more answers
Other questions:
  • Apple the rules for other of operation to simplify 2 + 3 - 4 + ( 5 x 4)
    13·1 answer
  • For the final part of the race, a handcyclist travels 32 feet each second across a distance of 400 feet. How many seconds does i
    9·1 answer
  • If x and y vary directly, and x = 10 when y = 3, what will be the value of x when y = 9?
    9·2 answers
  • Suppose that the number of gallons of milk sold per day at a local supermarket are normally distributed with mean and standard d
    10·1 answer
  • One kind of plant has only blue flowers and white flowers. According to a genetic model, the offsprings of a certain cross have
    9·1 answer
  • Find the area of a compound shape<br><br> Can you please explain
    14·1 answer
  • Need help on this. Which two numbers do i insert in.
    10·2 answers
  • Three ratios that are equivalent to 11:111:111, colon, 1.
    11·2 answers
  • To indirectly measure the distance across a lake, Nachelle makes use of a couple landmarks at points D and E. She measures CF, F
    5·1 answer
  • A regular polygon has possible angles of rotational symmetry of 20°, 40°, and 80°. How many sides does the polygon have?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!