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Pani-rosa [81]
3 years ago
10

What is the scientific notation for 0.000639

Mathematics
1 answer:
daser333 [38]3 years ago
4 0

Answer:

6.39*10^-4

Step-by-step explanation:

according to the form that is used to convert usual into scientific notation it be like 6.39*10^-4

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Evaluate the limit, if it exists. Show work.<br> lim→5 2−3−10 / 2−10
hram777 [196]

Answer:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

Exact Form: 13/3

Decimal Form:  4.3

Mixed Number Form:4  1/3

Step-by-step explanation:

Hope this helps ;)

4 0
2 years ago
Which graph represents the solution set of the system of inequalities?
Georgia [21]
To find out, graph them, analyze, and check.
Graph them. 
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6 0
3 years ago
Please help me on these problems
lukranit [14]

Answer:

a=1 because 3x means 3 multiply 2 and it is substracted from 7 and 7-6 is 1

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Step-by-step explanation:

hope you will understand from the explanation of a

6 0
2 years ago
Please do them step by step;
ELEN [110]
For the first one c-9=(2)(4)+6
You are gonna multiply 2 and 4 first, 2*4=8. Now you have c-9=8+6. 8+6=14. So now the equation is c-9=14. Now we are going to add 9 to both sides. So c=23
For the second equation 10+y=90. We are going to subtract 10 from both sides. So, y=80.
Third, add 4 to both sides. a=10.
Fourth, subtract 8 from both sides. d=-9
Fifth, 5+2(3+4)=-x.
First we are going to add 3 and 4. 3+4=7. 5+2(7)=-x. Next we are going to multiply 2 and 7. 2*7=14. 5+14=-x. 5+14=19. So our equation is 19=-x. Next we are going to multiply both sides by -1. Making our final equation x=-19.
c=23
y=80
a=10
d=-9
x=-19
I hope that helps, if you need any further explanation just ask.<span />
3 0
3 years ago
Which number should replace the question mark in the number grid below?
-Dominant- [34]
B. 5

Each row across (left to right) adds up to 43
4 0
2 years ago
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