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victus00 [196]
2 years ago
6

Element X is a radioactive isotope such that every 91 years, its mass decreases by half. Given that the initial mass of a sample

of Element X is 80 grams, how long would it be until the mass of the sample reached 68 grams, to the nearest tenth of a year?
Mathematics
1 answer:
vaieri [72.5K]2 years ago
7 0

Answer:

21.3

Step-by-step explanation:

Delta math answer.

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Riley's dentist has an aquarium in his office with the dimensions 16 in. By 8.5 in. By 10.5 in. What is the volume of the aquari
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1428

Step-by-step explanation:

I did 16 times 8.5 times 10.5. Good Luck!

6 0
2 years ago
Describe a triangle for which the centroid, circumcenter, incenter, and orthocenter are the same point. What features of this tr
hjlf

Answer:

An equilateral triangle

Step-by-step explanation:

Because an equilateral has a feature that all sides have the same length and all angles are of the same, it does not matter from which side and peak the centroid, circumcenter, incenter and orthocenter is created, they would always end up at the same point.

3 0
3 years ago
Read 2 more answers
(2,4) (0,y) slope is -2
solong [7]
-2= y-4
——
0-2
-2= y-4
——
-2
(y-4)•-2 = -2
-2y+8=-2
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————
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8 0
3 years ago
Solving a Work Problem
RUDIKE [14]

Answer:

3.4 hours

Step-by-step explanation:

6 0
2 years ago
Can somebody plz help answer the number 10’s questions using the diagram from the bottom left side (only if u know how to do thi
Lana71 [14]

Answer:

10a: △ABC is an Equilateral triangle with all acute angles.

10b: △BCD is A scalene triangle with all acute angles.

10c: △BDE is An Isosceles triangle with one obtuse angle.

Step-by-step explanation:

10) Looking at the diagram at the bottom left;

- △ABC has 3 equal internal angles and as such, it means it will have 3 equal angles.

Thus, we can classify it as; Equilateral triangle with all acute angles.

- △BCD has 3 unequal angles. Thus, it's 3 sides are not equal. Also all the angles are less than 90°.

We can classify it as;

A scalene triangle with all acute angles

- △BDE has 2 equal angles and one angle greater than 90°. This means it has 2 equal sides.

Thus, we can classify it as;

- An Isosceles triangle with one obtuse angle.

8 0
2 years ago
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