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seropon [69]
3 years ago
7

HELP PLEASE 10 POINTS!!!!!!!!!!!

Mathematics
2 answers:
LiRa [457]3 years ago
5 0

Answer:

0.0000000642 = 6.42 \times  {10}^{ - 8}

I hope I helped you^_^

svp [43]3 years ago
5 0

Answer:

6.42 x 10^-8

You might be interested in
The mean age of Mr Jasmi,Miss Haslinda and their three children is 38 years. The mean age of their three children is 18 years. C
DedPeter [7]
Answer: 68

Explanation:

Let x be the age of Mr Jasmi
y be the age of Miss Haslinda
a + b + c be the age of the 3 children

We can write:
(x + y + a + b + c)/5 = 38

But:
(a + b + c)/3 = 18
a + b + c = 18(3)
a + b + c = 54

Substitute this value to our first equation

(x + y + 54)/5 = 38
x + y + 54 = 38(5)
x + y + 54 = 190
x + y = 190 - 54
x + y = 136

Thus:
Mean age of (mr jasmi and miss Linda) = (x+y)/2

But x + y = 136

=> mean age = 136/2 = 68
4 0
2 years ago
Gwen has 3 red erasers, 4 green erasers, 2 black erasers, 5 purple erasers, and 6 yellow erasers in her book bag.
son4ous [18]
I think the probability that Gwen will reach in her book bag purple eraser is 5/20 or 1/4
5 0
2 years ago
X = 55, because 60 + 65 = 125 and 180 - 125 = 55
Lina20 [59]

Answer: x= 55 because 60 + 65 =125 and 180 - 125 = 55

Step-by-step explanation:

The sum of three angles in any triangle is 180. Therefore you add the two angles that you have and use that number to subtract it by 180. Then you will have your answer. Also you can get the answer to y by subtracting the value of x from 180.

7 0
2 years ago
6
raketka [301]

Answer:

The answer is 12

6×12= 24

6×12=72

6 0
2 years ago
Solve the system of equations y= 3/2 - 1, -x+ y =-3
kaheart [24]

Answer:

(x, y) = ( 1/2, -3 )

Step-by-step explanation:

y = -3

3/2 - 1 - x + y = - 3

3/2 - 1 - x - 3 = - 3

x = 1/2

solution : (x , y ) = ( 1/2, -3)  

here we are gonna see why is that answer :

-3 = 3/2 -1 - 1/2 - 3 = -3

-3 = -3 = -3

i hope this helps

5 0
2 years ago
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