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3 years ago

What does the notation

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

6 0

Answer:

the process or method of noting or setting down by means of a special system of signs or symbols. the act of noting, marking, or setting down in writing. a note, jotting, or record; annotation: notations in the margin.

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Helppppppppppppppppppppppppp

Wewaii [24]

Answer:

Radius: 8

Circumference: 50.27

πr^2 = Area of circle

201.06 = πr^2

divide by pi

201.06 / π = 63.9993857161 = 64

64 = r^2

Square root both sides to get radius.

$\sqrt{64}$ = 8

r = 8

Circumference = π x diameter

Diameter = 2 x radius

Circumference = π x 16 = 50.2654824574 = 50.27

8 0

3 years ago

Geometry help please I have asked a thousand times for 4 questions

Feliz [49]

To find the superficial area of a prism you have to do base perimeter * height

So find the perimeter of the right triangle: 9+8+5 = 22 yd

Then find the superficial area 22*12 = 264 yd^2

7 0

3 years ago

How many ways are there to select 7 countries in the United Nations to serve on a council if 3 is selected from a block of 54, 2

MArishka [77]

Answer:

(54C3) + (69C2) + (66C2) = 29295

6 0

3 years ago

Evaluate the logarithmic expression Log subscript5^25 +log subscript 5^625/logsubscript5^100. The value of the expression, round

Lady bird [3.3K]

Hello !
Here are some rules for logarithms :    log ₐ b = n ⇔ aⁿ = b
                                                             log ₐ aⁿ = n
                                                             log ₐ (b·c) = logₐ b + log ₐ c
                                                             log ₐ bⁿ = n· log ₐ b                                        ____________________________________________________
25=5²
625=5⁴
100 = 5² · 2²
____________________________________________________

(log₅ 25 + log₅ 625) / log₅100 =
(log₅ 5²+ log₅ 5⁴) / log₅ (5² · 2²) =
(log₅ 5²+ log₅ 5⁴) /( log₅ 5² + log₅ 2²) =
(2 + 4)/(2+log₅ 2² ) =
6/ (2+2·log₅2)=
6/2 + 6/ (2·log₅2) =

3+ 3/log₅2
log₅2 = 0.5

So 3+ 3/log₅2 = 3 + 3/0.5 =3 + 6 = 9

Answer : 9

3 0

3 years ago

A country in South America exported 62% of the 315,000 bags of coffee beans they produced in a given year. How many bags did the

Arte-miy333 [17]

Answer:

195,300

Step-by-step explanation:

62 percent *315000 =

(62:100)*315000 =

(62*315000):100 =

19530000:100 = 195300

Now we have: 62 percent of 315000 = 195300

Question: What is 62 percent of 315000?

Percentage solution with steps:

Step 1: Our output value is 315000.

Step 2: We represent the unknown value with x.

Step 3: From step 1 above,315000=100%.

Step 4: Similarly, x=62%.

Step 5: This results in a pair of simple equations:

315000=100%(1).

x=62%(2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

315000/x = 100/62%

Step 7: Again, the reciprocal of both sides gives

x/315000 = 62/100

x=195300

Therefore, 62% of 315000 is 195300

6 0

3 years ago