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
Ierofanga [76]
3 years ago
7

Work out the perimeter of a quarter-circle with radius 7cm.

Mathematics
2 answers:
Flura [38]3 years ago
7 0

Answer:

25

Step-by-step explanation:

p=1÷4pir+2r

1÷4×22÷7×7+2(7)

=11cm+14cm

=25

patriot [66]3 years ago
6 0

Answer:

3.5π cm²

Step-by-step explanation:

let P represent the perimeter of a circle with radius 7

P = 2×π×r

  = 2×π×7

  = 14π

the perimeter of a quarter-circle with radius 7 = P÷4

= 14π÷4

= 3.5π

You might be interested in
Consider the equation 2(ax+3)=4x−3(4x+8). For what value of a is there no solution to the equation?
erastovalidia [21]

Answer:

the value of a such that  there is no solution to the equation is a = -4.

Step-by-step explanation:

Let first simplify the expression presented on statement. The equation has no solution if and only if a is eliminated in the process and an absurd is the result (i.e. 0 = 7).

2\cdot (a\cdot x + 3) = 4\cdot x -3\cdot (4\cdot x + 8)

2\cdot a\cdot x +6 = 4\cdot x -12\cdot x -24

2\cdot a \cdot x+6=-8\cdot x-24

2\cdot a\cdot x +8\cdot x = -30

2\cdot (a+4)\cdot x = -30

(a+4)\cdot x = -15

To obtain an absurd, we need that a+4 = 0. Hence, the value of a such that  there is no solution to the equation is:

a = -4

Let prove the certainty of the result. We find that an absurd exist: (a = -4)

0 = -15

5 0
3 years ago
I’ll give brainliest!!
nignag [31]

Answer:

If A is wrong then B I think

Step-by-step explanation:

3 0
3 years ago
How do you show the work ? help
vaieri [72.5K]

Its super easy all u have to do is go on tiger math and the first link will take you to it and u put in the question and it will give you a step by step how to do it and it will give you the answer

5 0
3 years ago
The U.S. Flag has 50 white stars, 6 white stripes, and 7 red stripes. What is the relationship between stars and total stripes?
Svetradugi [14.3K]

Answer:

The relationship between stars and total stripes are 50 : 13.

Step-by-step explanation:

When you add all the stripes, it equals 13. There are 50 stars so this is the answer.

8 0
3 years ago
Read 2 more answers
(u^4)^4 write without parenthesis
icang [17]
U^16 is the answer to this problem
5 0
3 years ago
Other questions:
  • Estimate the value of 98.5x13
    14·2 answers
  • Write an equation for the line parallel to the given line that contains C.
    15·1 answer
  • 8. June Wilson's account had a beginning balance of $288.43. She made a deposit
    8·1 answer
  • Lily is making granola. She uses almonds, walnuts, and pecans in the ratio 4 : 3 : 8. Lily uses 40 ounces of pecans. A) find the
    15·1 answer
  • Find the amount of tax and the tax rate. Round to two decimal places
    11·2 answers
  • What is the equation of the line that is parallel to the line y=-1/3x+4 and passes through the point (6,5)?
    5·2 answers
  • What are trigonometric ratios used to find?
    11·2 answers
  • Find the digit 6 in each of these numbers:
    14·1 answer
  • What is the area of this shape
    9·2 answers
  • HELP DUE IN 10 MINUTES!! WILL GIVE BRAINLEST!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!