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
Over [174]
3 years ago
14

GET NAMED BRAINLIEST AND ANSWER THE RIGHT ANSWER AND GET A THANKS AND GET 30 POINTS

Mathematics
1 answer:
Inessa [10]3 years ago
3 0

Answer:

#i. π = 10/d

#ii. C/30=π

Step-by-step explanation:

#a. We are given;

  • The circumference of a circle as 10 cm

We are required to show how the relationship between the circumference  and the diameter can be used to find π.

we know that the circumference of a circle is given by;

Circumference = πd

But, circumference is 10 cm

Therefore;

10 cm = πd

Dividing both sides by d, then;

π = 10/d

#b. we are given;

We are given;

Radius of a circle = 15

We are supposed to express the ratio of circumference to the diameter;

We need to know that;

Diameter = 2 × radius

                = 2r

Circumference = πd or

                         = 2πr

Therefore, the ratio of circumference to the diameter will be;

C=2πr

d=2r

C/d = π

  But d =30

Thus; C/30 =π

You might be interested in
What do you call an event where it doesn’t effect the other?<br> A. Dependent<br> B. Independent
devlian [24]
Independent. No need to thank me.
6 0
3 years ago
Read 2 more answers
△ABC∼△DEF , △ABC has a height of 14 centimeters, and △DEF has a height of 6 centimeters. What is the ratio of the area of △ABC t
Kamila [148]
Since triangle ABC is similar to triangle DEF then the ratio of the corresponding sides is constant.
The ratio of the corresponding lengths is referred to as the linear scale factor.
Considering the heights of the two triangles;
L.S.F = 14/6
          = 7/3
The ratio in area (A.S.F) is given by (L.S.F)²
Therefore, A.S.F = (7/3)² = 49/9
Thus te ratio of the area of triangle ABC to DEF is 49:9
8 0
3 years ago
Read 2 more answers
A parking lot contains 100 cars , k of which happen to be lemons. we select m of these cars
Sunny_sXe [5.5K]
Given that a parking lot contains 100 cars, k of which happen to be lemons.

This is a conditional probability question.

Let event A be that a car is tested and event B be that a car is lemon.

The probability that a car is lemon is given by \frac{k}{100}

The probability that a car is tested is given by \frac{m}{100}

The probability that a car is lemon and it is tested is given by \frac{n}{m}

For a conditional probability, the probablility of event A given event B is given by:

P(A|B)= \frac{P(A\cap B)}{P(B)}

Therefore, the probability that a car is lemon, given that it is tested is given by.

P(lemon|tested)= \frac{P(lemon\, and\, tested)}{P(tested)}  \\  \\ = \frac{ \frac{n}{m} }{ \frac{m}{100} } = \frac{n}{m} \times \frac{100}{m} = \frac{100n}{m^2}
4 0
3 years ago
Tristan has some dimes and some quarters. He has at least 20 coins worth at most $4.25 combined. If Tristan has 10 dimes, determ
Dovator [93]

Answer:

The maximum number of quarters that he could have is 13

Step-by-step explanation:

Let x represent the number of quarters he could have. If he has 10 dimes and has at least 20 coins, then

→ x + 10 >= 20

→ x >= 10    (1)

His coins worth at most $4.25. Also, it is known that 1 dollar is equal to 100 cents, 1 dime is equal to 10 cents and 1 quarter is equal to 25 cents.

→ (x * 25) + (10 * 10)  <= (4.25 * 100)

→ 25x  + 100 <= 425

→ 25x <= 325

→ x <= 13  (2)

If we combine the equation 1 and 2:

10 <= x <= 13

The maximum value of x is 13

7 0
3 years ago
Find the value of 48 - 32 = 4.2.<br> 8
MariettaO [177]

Answer:

48 - 16 = 32

Step-by-step explanation:

Use the PEMDAS method to help you solve the problem.

Parenthesis

Exponents

Multiply (Left to right)

Divide (Left to right)

Add (Left to right)

Subtract (Left to right)

32 ÷ 4 = 8

8 x 2 = 16

48 - 16 = 32

3 0
3 years ago
Other questions:
  • Evaluate the absolute value of 60
    11·1 answer
  • A number y is no more than -8 what is the inequality
    7·2 answers
  • What is 856 divided by 82
    8·2 answers
  • Rick wants to buy a pound of almonds. If a 1-pound bag costs $6.15 and a 4-ounce bag costs $1.85, how much money would Rick save
    15·2 answers
  • What is 0.6 divided by 0.03?
    6·2 answers
  • Ava has 55 quarts of potting mix. She uses 1 of the potting mix in the wall planter on her
    7·2 answers
  • What is the answer to this question, 2/5×6/7?
    14·1 answer
  • Help!!
    7·1 answer
  • 3. Using the equation: A= 10 • log B, if A = 180, solve for B.
    6·2 answers
  • HELP! Write the exponential equation that is represented by the table below? y=a·b^x
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!