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Sergeeva-Olga [200]
3 years ago
9

Element X decays radioactively with a half life of 9 minutes. If there are 860

Mathematics
1 answer:
Viktor [21]3 years ago
7 0

Answer:28.7 minutes

Step-by-step explanation:

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The one selected is wrong please help meee!
GREYUIT [131]

Answer:

  (a)  ΔARS ≅ ΔAQT

Step-by-step explanation:

The theorem being used to show congruence is ASA. In one of the triangles, the angles are 1 and R, and the side between them is AR. The triangle containing those angles and that side is ΔARS.

In the other triangle, the angles are 3 and Q, and the side between them is AQ. The triangles containing those angles and that side is ΔAQT.

The desired congruence statement in Step 3 is ...

  ΔARS ≅ ΔAQT

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2 years ago
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dolphi86 [110]
Is there any thing else to the directions?
6 0
3 years ago
Below are two parallel lines with a third line intersecting them.<br> 34°
Anna35 [415]

Answer:

x = 34°

Step-by-step explanation:

corresponding angles made by a transversal intersecting parallel lines are congruent.

5 0
3 years ago
if you drop a tennis ball from the height of 100in and the rebound is 58in what is the height on the 10th bounce?
xenn [34]

Answer:

0.431 inches

Step-by-step explanation:

We were given the following values:

Height the tennis ball was dropped = 100in

Rebound height = 58in

We have to find the rebound ratio

= 58in/100in = 0.58

The formula to be used

Height on nth bounce = Initial height × (Rebound ratio)ⁿ

Where n = number of bounce

Height on the 10th bounce = 100 × (0.58)^10

Height on the 10th bounce = 0.4308042069inches

Approximately, the height on the 10th bounce = 0.431 inches.

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3 years ago
Natalie used 112 inches blue yarnas a border around her rectangular bulletin board. If the bulletin board is 36 inches wide, how
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