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densk [106]
2 years ago
14

When calculating the circumference of a circle, sometimes the radius is given instead of the diameter. What is the relationship

between radius and diameter? a. radius is twice the diameter c. diameter is twice the radius b. diameter is half the radius d. no relationship, can't find circumference with radius Please select the best answer from the choices provided A B C D
Mathematics
2 answers:
marin [14]2 years ago
8 0

Answer:

Option A ( radius is twice the daimeter )

Step-by-step explanation:

The relationship between radius and daimeter is given as

       Radius² = Daimeter    ⇒    r² =  d

And cricumference can be calculated with radius

 As circumference is    2πr

UkoKoshka [18]2 years ago
8 0

Answer:  c. diameter is twice the radius

For example, if the radius is r = 10 feet then the diameter is twice that and it's d = 2*r = 2*10 = 20 feet.

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Let HH represent the number of hummingbirds and SS represent the number of sunbirds that must pollinate the colony so it can sur
Nikitich [7]

Answer: 7

Step-by-step explanation:

Here the given inequality that shows the number of humming birds(H) and the number of sunbirds(S)  that must pollinate the colony so it can survive until next year,

6 H + 4 S > 74

If This year, 8 hummingbirds pollinated the colony.

By putting H=8 in the above inequality,

We get,

6× 8 + 4 S > 74

⇒ 48 + 4 S > 74

⇒ 4 S > 26

⇒ S > 6.5

Hence the least number of sunbirds is 7.

7 0
3 years ago
Read 2 more answers
If a number is doubled, and 16 is added to it, the resault is 40. what is the number
Sphinxa [80]

Answer:

The number is 12

Step-by-step explanation:

Let x = number

2x+16 = 40

Subtract 16 from each side

2x+16-16 =40-16

2x = 24

Divide by 2

2x/2 =24/2

x = 12

8 0
3 years ago
I have to take care of my sister's cat while she is on vacation. The cat is a very picky eater and will only eat a certain cat f
Viktor [21]

Answer:

PetSmart is offering the best deal

Step-by-step explanation

For Gristede's we get 18 and divide it by 12 which would give us $1.50 per can

For PetSmart we get 26 and divide it by 20 which would give us $1.30 per can

3 0
3 years ago
Quincy sold three times as many magazines as Olivia. Trenton sold two less than twice the number of magazines that Quincy sold.
Anastaziya [24]

Olivia sold 14 magazines.

Step-by-step explanation:

Total magazines sold = 138

Let,

Magazines sold by Olivia = x

Magazines sold by Quincy = y

Magazines sold by Trenton = z

According to given statements;

x+y+z=138    Eqn 1

Quincy sold three times as many magazines as Olivia.

y = 3x    Eqn 2

Trenton sold two less than twice the number of magazines that Quincy sold.

z = 2y-2    Eqn 3

Putting value of y from Eqn 2;

z=2(3x)-2\\z=6x-2\ \ \ \ Eqn\ 4

Putting value of y from Eqn 2 and value of z from Eqn 3 in Eqn 1

x+3x+(6x-2)=138\\4x+6x-2=138\\10x=138+2\\10x=140\\

Dividing both sides by 10

\frac{10x}{10}=\frac{140}{10}\\x=14

Olivia sold 14 magazines.

Keywords: linear equations, division

Learn more about division at:

  • brainly.com/question/6108628
  • brainly.com/question/609140

#LearnwithBrainly

8 0
3 years ago
Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!
katrin2010 [14]

Answer:

9

Step-by-step explanation:

Pythagorean Theorem

a²+b²=c²

(c² is the hypotenuse)

a² + 40² = 41²

a² + 1,600 = 1,681

subtract 1681-1600 in order to isolate a², which is the missing leg we are trying to find

a² = 81 in order to find our answer, we isolate a by squaring both sides

√a² = √81

a = 9

Our answer is 9.

6 0
3 years ago
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