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3 years ago

Rearrange the formula V = 2πr T for r.

Mathematics

2 answers:

arsen [322]3 years ago

8 0

Divide each side by 2piT
V/2 $\pi$ T = r

Makovka662 [10]3 years ago

5 0

R=v/2<span>π t
formula is arranged </span>

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denis-greek [22]

The probability would be out of 100,
in this case if it refers to the data from 2009 it would be 39:61

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2 years ago

a five question multiple choice quiz has five choices for each answer. use the random number table provided, with 0's representi

Montano1993 [528]

The experimental probability of correctly guessing at random exactly zero correct answers is (4/5)⁵

<h3>What is Probability?</h3>

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

Here, total multiple choice quiz = 5 questions

Each question contains 5 choices in which 1 choice is correct and remaining 4 are incorrect.

Possibility of first wrong choice = 4/5

Possibility of second wrong choice = 4/5

Possibility of third wrong choice = 4/5

Possibility of fourth wrong choice = 4/5

Possibility of fifth wrong choice = 4/5

Overall probability for Zero correct answer=(4X4X4X4X4)/(5X5X5X5X5)

= (4/5)⁵

Thus, the experimental probability of correctly guessing at random exactly zero correct answers is (4/5)⁵

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2 years ago

Dwayne is finding the base of the triangle shown. It's area is 100 square meters. find his mistake and correct it.

EleoNora [17]

$100 = \frac{1}{2} 20 \times (b) \\ 100 = 10b \\ b = 10$

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2 years ago

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I cut a long piece of wood into 50cm pieces. I manage to cut

ehidna [41]

Answer:

$WoodLength = 50w + 20$

Step-by-step explanation:

Given

Length of Pieces = 50cm

Number of Pieces = w

Left over = 20cm

Required

Determine the length of the wood

Start by multiplying the number of pieces by the length of each pieces

$Result = Length * Number$

$Result = 50 * w$

$Result = 50 w$

Lastly, add the leftover to get the actual length of the wood

$Wood Length = Result + Leftover$

Substitute 50w for Result and 20 for Leftover

$WoodLength = 50w + 20$

<em>Hence, the length of the wood is 50w + 20</em>

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3 years ago

How many lines of symmetry does this figure have<br> A 1<br> B, 2<br> C. 3<br> D, 4

defon

Answer:

A.1

Step-by-step explanation:

Trapezoids only have one vertical line of symmetry

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2 years ago

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