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Marina86 [1]
3 years ago
5

Is 87656432 divisible by 4? Is there a shortcut?

Mathematics
1 answer:
Natasha2012 [34]3 years ago
8 0
Hope this isn't too confusing

All of the numbers have different shortcuts.
1. Yes. Divisible by 4: if last two digits are divisible by 4 then the whole number is yes)
2. No. Divisible by 6: it must be even and when you add them up, (44) it must be divisible by 3 (no, 44 is not divisible by 3)
3. Divisible by 8: ( last 3 numbers are divisible by 8 (312) = 39 ( yes it is)
4 Yes. Divisible by 11: ( sum of digits at odd places and sum of digits at even spaces,is either 0 or divisible by 11) yes, 278949. (2+8+9) + (7+9+9)= 19 + 25 = 44 and 44 is divisible by 11)
5. No. Divisible by 12 (divisible by 3 and 4, sum of digits is divisible by 3 ; and last 2 digits divisible by 4: 87654395 : 52/3= 18 (yes) 95/4(no) this number not divisible by 12
6. No. Divisible by 15: divisible by 3 and 5 ..87654385 = 46/3 = 15..(No) divisible by 5 yes. The number is not divisible by 15

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Which property can be used to expand the expression -2(3/4*+7)?
nika2105 [10]

Answer:

C. The distributive property

Step-by-step explanation:

The distributive property of binary activities is generalized in mathematics by the distributive law of Boolean algebra and elementary algebra. Distribution applies, in propositional logic, to two clear substitution laws. The rules allow one to reformulate, within logical facts, conjunctions and disjunctions.

7 0
2 years ago
An angle made with two radii whose vertex is at the center of a circle is the definition of what
Katena32 [7]

Answer: congruent central angles

Step-by-step explanation:

A central angle is an angle formed by two radii with the vertex at the center of the circle. In the diagram at the right, ∠AOB is a central angle with an intercepted minor arc from A to B. In a circle, or congruent circles, congruent central angles have congruent arcs.

4 0
3 years ago
What are the measurements of the little 2 small cube things on each side, better yet what's the surface area? Thank you
Arisa [49]

<u>Answer:</u>

  • 166 units²

<u>Step-by-step explanation:</u>

<u>We know that:</u>

  • W = 7
  • L = 5
  • H = 4

<u>Surface area is the area of the faces of the cuboid.</u>

<u>Work:</u>

  • => 2(7 x 4) + 2(5 x 4) + 2(5 x 7)
  • => 2(28) + 2(20) + 2(35)
  • => 56 + 40 + 70
  • => 166 units²

Hence, <u>Option C is correct.</u>

Hoped this helped.

BrainiacUser1357

4 0
2 years ago
What are the solutions of the system 7x + 3y = -3 and y = -2 x ?
saul85 [17]
I am assuming that the second equation is y = -2^x. In that case, the correct answers are (0, -1) and (3, -8).
6 0
3 years ago
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Find the next two numbers in the pattern. 9,-27,81,-243....
slava [35]

The answer is 729, -2187

because you multiply each number by -3



6 0
3 years ago
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