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3 years ago

Radius:5cmDiameter:Circumference:Area:

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

7 0

Answer: Diameter = 10cm

Circumference = 31.4cm

Area = 78.57cm2

Step-by-step explanation: Radius = 5cm

→Diameter = 2×radius

= 2×5 = 10cm

Diameter = 10cm

→ Circumference = 2 ×22/7 × 5

= 220/7

=31.4cm

→ Area = 22/7 × 5 × 5

22/7× 25 = 78.57cm2

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Answer:

- 6

Step-by-step explanation:

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3 years ago

Check all of the ordered pairs that satisfy the equation below.y=2/5x

zvonat [6]

We are going to do this step by step:

Let's start with option A

X = 25 and Y = 5/2

$y=\frac{2}{5}\cdot x=\frac{2}{5}\cdot25=\frac{2\cdot25}{5}=\frac{50}{5}=\frac{5\cdot10}{5\cdot1}=10$

In this case, when X = 25 , then Y = 10 ,which is different to 5/2

X = 14 , Y = 35

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In case, when X = 14, then Y = 28/5, which is different to 35

X = 40 , Y = 24

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Similarly, in this case, when X = 40, then Y = 16, which is different to 24

X = 10 , Y=4

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Now, in this case, we can see that when X = 10, then Y = 4 which is the same as the given value of Y

X = 50 , Y = 20

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In this case, the values of Y are also the same.

X = 30 , Y = 12

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1 year ago

Jessica is 5 years older than her sister Jenna. Jenna tells her sister that in 5 years, she will be as old as Jessica was 5 year

vlabodo [156]

Answer:

x + 5 = (x + 5) - 5, which has no solution ⇒ answer C

Step-by-step explanation:

* Lets study the situation in the problem

- Jessica is 5 years older than her sister Jenna

- After five years Jenna's age will be as old as Jessica was five years ago

- Jenna's age now is x

* Lets change all information above to equation

∵ Janna's age now is x

∵ Jessica is 5 years old than Janna

∴ The age of Jessica now is x + 5

- After 5 years Janna's age will be add by 5 years

∵ Her age now is x

∴ Her age after 5 years will be x + 5

- From 5 years ago Jessica's age was her age now mins 5 years

∵ Her age now is x + 5

∴ Her age from 5 years ago is (x + 5) - 5

∵ Janna's age after 5 years = Jessica age from 5 years ago

∴ x + 5 = (x + 5) - 5

- Lets solve the equation to know how many solution

∵ x + 5 = x + 5 - 5 ⇒ add the like terms

∴ x + 5 = x ⇒ subtract x from both sides

∴ 5 = 0

- But 5 ≠ 0, the two sides of the equation not equal each other

∴ There is no solution for this equation

* The equation is x + 5 = (x + 5) - 5, which has no solution

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What is 3√20 - 3√45 + 5√12 in simplest radical form? Show all work.

lesya692 [45]

Answer: -3√5 + 10√3

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Step 2: Determine the index of the radical. In this case, the index is two because it is a square root, which means we need two of a kind.

Step 3: Move each group of numbers or variables from inside the radical to outside the radical. In this case, the pair of 2’s and 3’s moved outside the radical.

Step 4: Simplify the expressions both inside and outside the radical by multiplying.

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4 years ago

Radius:5cmDiameter:Circumference:Area:​

Radius:5cmDiameter:Circumference:Area: