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makkiz [27]
3 years ago
12

Choose all the expressions that are equivalent to 12 + 14x – 24x + 3

Mathematics
1 answer:
faltersainse [42]3 years ago
7 0

Answer:

Just combine the x

Step-by-step explanation:

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Question: Carbon-11 has a half-life of about 20 minutes. If we start with 200 grams, how
irakobra [83]

Answer:

C). 0.39 grams

Step-by-step explanation:

First find how many half-lifes are in 3 hours:

3 hours ÷ 20 minutes = 9 half-lifes

Find the total left:

0.5^9*200 ≈ 0.39

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3 years ago
Solve the inequality<br><br> 1≥−y/4
scoundrel [369]

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y≥-4 or (-4,∞)

Step-by-step explanation:

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3 years ago
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A tetrahedron is a triangular pyramid with 4 equilateral faces. Han has a box of tetrahedrons with each of the 4 vertices marked
Daniel [21]

Theoretically, the number of the vertex comes at the top must be equal for infinitely many numbers of trials, but it's a tedious job to roll the dice for a large number of times. Rolling the tetrahedron only 10 times will not predict the correct result.

Han suspects that this tetrahedron is weighted in some way to make 1 appear more often than the other numbers.

So, check his suspect experimentally with the help of the concept of center of mass. A fair tetrahedron must have the center of mass at the center of the body.

The given tetrahedron has 4 equilateral triangular faces, so at first, measure all the sides of triangular faces and make sure that all are having the same length.

Then, conduct an experiment to check the location of the center of mass.

Hang the tetrahedron by attaching a thin string at the vertex 1 as shown in the figure and observe the base surface ( triangle 234) whether it is parallel to the ground or not.

Now, repeat the same by hanging it with vertices 2, 3, and 4 and observe the base surface.

For the center of mass to be located at the center of the tetrahedron, the base must be parallel to the ground (flat ground).i.e the hanging string must be perpendicular to the base for all the four cases.

If this is so, then the tetrahedron is a fair tetrahedron otherwise not.

8 0
3 years ago
Square root of 7 plus 5i divided by square root of 5 plus 2i
In-s [12.5K]

it is 2.981580515 are you a boy or not

3 0
3 years ago
3. Sylvie has 16 pieces of origami paper, plus another package with 30 pieces of origami paper in
NNADVOKAT [17]

Answer:

46

Step-by-step explanation:

16+30

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3 years ago
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