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Anna35 [415]
3 years ago
10

The half-life of a radioactive kind of protactinium is one minute. If you start with 88 g of it, how much will be left over afte

r two minutes?
Mathematics
1 answer:
rusak2 [61]3 years ago
6 0
This is my workings

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What is s squared +2x-35 factor
Evgen [1.6K]
X^2 + 2x - 35

(a x b) = -35
(a + b) = 2

(7 x -5) = -35
(7 + -5) = 2

Plug them in: 

x^2 - 5x + 7x -35
x(x - 5) + 7(x - 5)

Therefore, you can conclude that our final answer is...

(x + 7)(x - 5)

If you have any questions or do not understand, comment below my answer. :)


5 0
3 years ago
Read 2 more answers
What is Mia's error? 83 + n = 110<br> 83 + 83 + n = 110 + 83 n=193
Tanya [424]

Answer:

She added 83 instead of subtracting

Step-by-step explanation:

83 + n = 110

We want to do the opposite to n

We are adding 83 to n.  The opposite is subtract 83

83+n-83 = 110-83

n =27

Mia

83 + n = 110

83 + 83 + n = 110 + 83

163+n=193

8 0
3 years ago
Find the original ordered pairs.
Serga [27]
You se I’m so dum I can’t do this good lick
3 0
3 years ago
Gym A charges $60 a month plus $5 per visit. The monthly cost at Gym B is represented by y = 7x + 40, where x is the number of v
Anarel [89]

Answer:

See the explanation

Step-by-step explanation:

Given data

Gym A charges $60 a month plus $5 per visit

let the number of visits be x, and the total charge be y

Hence the total charge is expressed as

y=5x+60--------------1

Gym B is represented by

y = 7x + 40-----------2

Although I can not find any option, we can conclude that gym A monthly charge is $20  more expensive than gym B

6 0
3 years ago
8/1/3 ÷4/1/2 dividing mix number​
Alika [10]
8 1/3= 25/3
4 1/2= 9/4
25/3 / 9/4
= 25/3 * 4/9 use kcf (keep change flip)
=100/27
6 0
4 years ago
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