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Gelneren [198K]
3 years ago
6

Two circles have the same radius. Complete the description for whether the combined area of the two circles is the same as the a

rea of a circle with twice the radius.
Mathematics
2 answers:
Anna007 [38]3 years ago
7 0

Answer:

it would have twice the area of one circle because the radius would double therefore the inside/area would double

Step-by-step explanation:

Genrish500 [490]3 years ago
7 0

Answer:

No

Step-by-step explanation:

no!

Two circles of radius r

= 2(π)(r^2)

= 2π r^2

one circle of radius 2r

= π(2r)^2

= 4π r^2

use an example, eg. r = 3

two circles with r = 3

= 2π(3^2) = 18π

one circle with radius 6

= π(6^2)

= 36π

notice the singe large circle is twice the area of the two smaller ones

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ABD

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3 0
2 years ago
80% of x is 40. What is the value of x?<br><br> Please help hurry!!
butalik [34]

Answer:

The answer would be 50

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2 years ago
(X^-3)^-5x^6<br> A. X^21<br> B. X^-21<br> C. X^48<br> D. X^-48
stich3 [128]
The answer should be X^15X^6 but that doesn’t seem to be an option.

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2 years ago
Determine whether the given set, together with the specified operations of addition and scalar multiplication, is a vector space
oksano4ka [1.4K]

Answer:

  • The set R^2 with x ≤ 0 and y ≤ 0 is not a vector space.
  • The 10th axiom  cv \in V does not hold

Step-by-step explanation:

Let u, v and w be vectors in the vector space V, and let c and d be scalars. A set S is defined as a vector space if it satisfies the following conditions:

  • 1. u+v  \in V
  • 2. v + w = w + v
  • 3. (u + v) + w = u + (v + w)
  • 4. v + 0 = v = 0 + v
  • 5. v + (−v) = 0
  • 6. 1v = v
  • 7. c(dv) = (cd)v
  • 8. c(v + w) = cv + cw
  • 9. (c + d)v = cv + dv
  • 10. cv \in V

Given the set of all vectors x, y in R^2 with x ≤ 0 and y ≤ 0

If the scalar c is such that c0.

Therefore, the 10th axiom is not satisfied and thus the set R^2 with x ≤ 0 and y ≤ 0 is not a vector space.

6 0
3 years ago
Can u pls help me with this question ​
juin [17]

Answer:

If Clara gets 4 people in 10 phone calls, then she will obviously get 16 people, because there are 40 calls, with 4 people each 10 calls. Meanwhile, with Toby getting 3:8, he will get 15 people in total. 3:8 is equal to 15:40. Clara will have more people in 40 phone calls

Step-by-step explanation:

6 0
2 years ago
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