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
inna [77]
3 years ago
10

Estimate the circumference of the following circles: d = 10cm r = 7 cm d = 15 m

Mathematics
2 answers:
cluponka [151]3 years ago
8 0

Answer:

43.98

Step-by-step explanation:

Circumference= 2πr

so it would be 2x3.14x7=43.98

Evgen [1.6K]3 years ago
4 0

Answer:

1. 31.42cm

2. 43.98cm

3. 47.12cm

Step-by-step explanation:

Multiply the diameter by pi,

Since the radius is just half of the diameter, make it 14 then multiply by pi

You might be interested in
Whats 2+2 i dont know what it is
SOVA2 [1]

Answer:

4

Step-by-step explanation:

2+2=4

thanks:D

5 0
3 years ago
Read 2 more answers
In a class 30 of students, 19 play an instrument and 10 play a sport. There are 8
baherus [9]

Answer:

1/30

Step-by-step explanation: There are 30 students 19 play instr, 10 play spor,

8 who do both. Their is one student that was left out so the answer is 1/30

8 0
3 years ago
Which equation is the equivalent form of 20(3)^5x = 820?
makvit [3.9K]

Answer:

x=ln(41)/ln(243)

Step-by-step explanation:

20(3)^5x=820

3^5x=820/20

3^5x=41

5x=ln(41)/ln(3)

x=(1/5)[ln(41)/ln(3)]

x=ln(41)/ln(3^5)

x=ln(41)/ln(243)

8 0
3 years ago
Hank bought 3 more boxes of cereal than gallons of milk. He bought x boxes of cereal at $2.79 each. Each
Over [174]

Answer:

true

Step-by-step explanation:

8 0
3 years ago
Find the VOLUME of this composite solid.
Black_prince [1.1K]

Answer:

  (294π +448) cm³ ≈ 1371.6 cm³

Step-by-step explanation:

The half-cylinder at the right end has a radius of 7 cm, as does the one on top. Together, the total length of these half-cylinders is 8 cm + 4cm = 12 cm. That is equivalent in volume to a whole cylinder of radius 7 cm that is 6 cm long.

The cylinder volume is ...

  V = πr²h = π(7 cm)²(6 cm) = 294π cm³

__

The cuboid underlying the top half-cylinder has dimensions 4 cm by 8 cm by 14 cm (twice the radius). So, its volume is ...

  V = LWH = (4 cm)(8 cm)(14 cm) = 448 cm³

Then the total volume of the composite figure is ...

  (294π +448) cm³ ≈ 1371.6 cm³

8 0
3 years ago
Other questions:
  • PLEASE HELP ASAP 30 POINTS.
    14·2 answers
  • Oliver and Lenny started hiking a hill simultaneously from the bottom to the top. Oliver hiked at a speed of 5 km/h during the f
    6·1 answer
  • Simplify (-6)^-3 and explain
    15·2 answers
  • I need to find the value of x and y please help.
    8·1 answer
  • A man invests a total of $9,493in two savings accounts. One account yields 9% simple interest and the other 10% simple interest.
    9·1 answer
  • The measure of the supplement of abc equals 180 minus m Abc this is the definition of supplement or complement angle
    14·1 answer
  • Solve for X: 5x-2=10
    9·2 answers
  • To clear both of the fractions from fox + 7 = 5 – x, we can multiply both sides of
    10·1 answer
  • -17 ÷ 4 + 7÷4 ×(1÷3 _ 5÷3 + 4÷5)<br> Answer ASAP
    14·1 answer
  • I need help in algebra
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!