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vlada-n [284]
2 years ago
9

What is the difference of the lengths of and ? use the value = 3.14, and round the answer to two decimal places. a. 1.25 units b

. 1.57 units c. 2.56 units d. 2.84 units
Mathematics
1 answer:
natulia [17]2 years ago
6 0

The difference between the length of arc BD and CE is 1.57 units

<h3>Length of an arc</h3>

length of arc = ∅ / 360 × 2πr

where

  • r = radius
  • ∅ = central angle

Therefore,

BD = 45 / 360 × 2 × 3.14 × 6 = 1695.6 / 360 = 4.71 units

CE = 45 / 360 × 2 × 3.14 × 8 = 2260.8 / 360 = 6.28 units

Therefore, the difference between the length of arc BD and CE is as follows:

6.28 - 4.71 = 1.57 units

learn more on length of arc here: brainly.com/question/3984590

#SPJ4

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Can somebody help me please ​
vesna_86 [32]

9514 1404 393

Answer:

  • 3n+6 (n = smallest)
  • 3n (n = middle)

Step-by-step explanation:

The usual method for doing this is to let n represent the smallest one. Then the three integers are ...

  n, n+2, and n+4

and their sum is ...

  (n) +(n+2) +(n+4) = 3n+6 . . . . sum of 3 consecutive odd integers (n = smallest)

_____

Personally, for consecutive number problems, I prefer to let the variable represent the average value. If n is the average value of 3 consecutive odd integers, is is the middle integer. Of course, the sum will be 3 times the average:

  (n-2) +(n) +(n+2) = 3n . . . . sum of 3 consecutive odd integers (n = middle one)

4 0
3 years ago
15. You want to design an experiment using 800 marbles and you want six different colors-blue, red,
uysha [10]

Ans : 133.33

800/6=133.33

blue, red,

green, yellow, purple, and pink. You also do not want more than two colors to have the same

What is probability?

Probability is the branch of mathematics concerning numerical descriptions of how probably an event is to do, or how likely it's that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.( note 1)( 1)( 2) The advanced the probability of an event, the more likely it's that the event will do. A simple illustration is the tossing of a fair( unprejudiced) coin. Since the coin is fair, the two issues(" heads" and" tails") are both inversely probable; the probability of" heads" equals the probability of" tails"; and since no other issues are possible, the probability of either" heads" or" tails" is1/2( which could also be written as0.5 or 50).

To learn more about probability from the given link:

brainly.com/question/11234923

#SPJ9

7 0
2 years ago
If you know the measure of one of the base angles of the triangle, how do you find out the measure of the other base angle?
katen-ka-za [31]

Answer

using fethagorth equation

Step-by-step explanation:

4 0
4 years ago
Select all of the ratios that are equivalent to 1:5
andrew-mc [135]

Answer:

2/10 and 6/30 and 8/40

Step-by-step explanation:

2/10 reduces to 1/5

6/30 reduces to 1/5

8/40 reduces to 1/5

4 0
3 years ago
Please help and explain. Thank you!
Anvisha [2.4K]

Answer:

For the first question, the answer is 216 and the equation would become just 6^3

For the second, the answer is 9.

Step-by-step explanation:

When there is a negative exponent, that monomial is brought up to the top of the fraction, (the numerator) so 1/6^-3 becomes 1(6^3)/1, or simplified, just 6^3 since divided by one is the same number and times one is the same number. 6 x 6 x 6 is 216.

When there is a negative exponent outside the equation in a <u>fraction,</u> you need to take the reciprocal  of the fraction. Since it's squared, it will always be positive, so we can ignore the negative sign. 3/1 (or just 3) to the power of 2 is 9. (3 x 3 is 9).

When explained throughly this might be found confusing, but it's a very easy concept to get after a while.

8 0
3 years ago
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