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2 years ago

Is ABC ~ DEF? If so, name which similarity postulate or theorem applies?

Mathematics

2 answers:

ch4aika [34]2 years ago

6 0

It’s either A A or sad

Margarita [4]2 years ago

3 0

These triangles are similar because 2 pairs of angles are equal. I'm not very familiar with the acronyms in the list but I guess it must be AA.

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Element X decays radioactively with a half life of 6 minutes. If there are 790 grams of Element X, how long, to the nearest tent

frosja888 [35]

Answer:

It takes 27 minutes for the element to decay to 35 grams

Step-by-step explanation:

Given:

Initial amount = 790 grams

Final amount = 35 grams

Half life = 6 minutes

To find:

Time taken for the element to reduce into 35 grams = ?

Solutions

Time taken = $half life \times \frac{ log(\frac{ initial amount}{final amount})}{log(2)}$

On substituting the values given, Time taken

= $6 \times \frac{log(\frac{790}{35})}{log(2)}$

= $6 \times \frac{log(22.57)}{log(2)}$

= $6 \times 4.496$

= 26.97

= 27 minutes

7 0

3 years ago

Fraction and whole- Number Multiplication. 3/5 × 5

choli [55]

Answer:

Step-by-step explanation:

3/5 × 5

Divide through by 5

And you're left with 5

6 0

3 years ago

PLSSS HELP ASAPPP I'LL GIVE YOU BRAINLIEST IF I GET IT RIGHT!!!

kondor19780726 [428]

Answer:

D. 76

Step-by-step explanation:

because students that has 5 absences and less most likely to get higher than 75 marks. The student who has 8 absences studied at home, he's a genius

3 0

2 years ago

Need this answer ASAP

quester [9]

Answer:

B. $\sqrt{65}$

Step-by-step explanation:

Find the missing length by subtracting 5^2-3^2 to get 4^2.

Then do 4^2+7^2 to get 65

3 0

2 years ago

Could someone help me with math please and please txt back

Pani-rosa [81]

What do you need help on?

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3 years ago