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noname [10]
3 years ago
10

Circumference of a circle:

Mathematics
2 answers:
Veronika [31]3 years ago
8 0
Circumference of a circle is Pi multiplied by radius squared
Which equals to 3.14*11^2
Which is 379.94yd
Leto [7]3 years ago
8 0

Answer:

69.08 yards

Step-by-step explanation:

Circumference = 2pi×r

= 2×3.14×11

= 69.08 yd.

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1. Tom thought of a natural number, multiplied all its digits and after that he multiplied the result by the initial number. Is
mihalych1998 [28]

Answer:

1. No

2. 7

3. b=54

Step-by-step explanation:

1. We can answer this by assuming a number.

Let our number be 23

Multiplying its digits = 6

Multiplying the result with initial number = 6 * 23 = 138

So it is not possible to get 1716 as a result by thinking of a natural number and applying the operation mentioned in the question.

2. What is the largest prime factor of the factorial 49! ?

First of all we have to define prime factors:

Prime factors are the prime numbers that can be multiplied together to equal the original number.

The factors of 49 are: 1, 7, 49

7 is the largest prime factor of 49

3. The GCD(a, b) = 18, LCM(a, b) = 108. If a=36, findb.

We will use the relationship:

GCD * LCM = a*b\\18*108=36b\\1944=36b\\b= \frac{1944}{36} \\b=54

..

8 0
3 years ago
When –3 is multiplied by the sum of a number and 8, the result is –21. Find the number.
kumpel [21]
-3 times (x+8)=-21
-3(x+8)=-21
distributive property=a(b+c)=ab+ac
-3(x+8)=-3x+(-3)(8)=-3x-24
-3x-24=-21
add 3x to both sides
-24=-21+3x
 add 21 to both sides
-3=3x
divide both sids by 3
-1=x

x=-1
6 0
3 years ago
Quran bought 8.6 meters of fabric how many centimeters of fabric did he buy
lana [24]
8.6 m = 86 dm = 860 cm
7 0
3 years ago
Read 2 more answers
How many ways can a committee of three people be selected from a group of 20?
Rainbow [258]

Answer:

120

Step-by-step explanation:

From 20, choose 3:

₂₀C₃ = 120

Here we use combinations instead of permutations because the order doesn't matter.

7 0
4 years ago
0.045Decimal to percentage
yulyashka [42]

Answer: 4.5%

Step-by-step explanation: o convert from decimal to percent, just multiply the decimal value by 100. In this example we have: 0.045 × 100 = 4.5% (answer).

3 0
2 years ago
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