Put into scientific notation 2910000
1 answer:
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Answer:
-1+3i
Step-by-step explanation:
Sqr root of 25 and 36 are 5 and 6 respectively
Sqr root of -25 and -4 are 5i and 2i respectively
Combine like with like
5-6=-1
5i-2i=3i
-1+3i
Answer:
Step-by-step explanation:
Set this up as a proportion with the ratios being
If there is a 2:5 ratio of vinegar to oil, that ratio looks like this:
and if we are looking for how much oil, x, is needed for 20 ml of vinegar, then that ratio completes the proportion:
and cross multiply.
2x = 100 so
x = 50 ml of oil
Answer:
28. The difference represents an irrational number
29. The difference represents a rational number
30. The quotient represents a rational number
31. The quotient represents an irrational number
Step-by-step explanation:
* Lets explain how to solve the problem
- The rational number is any numbers can be put in the form of a/b,
where a and b are integers b ≠ 0
- Ex: 1 , 2/3 , 5/4 , 22/7 , 100 , ................
- The irrational number is any number that is not rational
- It is a number that cannot be written as a ratio of two integers
or cannot be expressed as a fraction
- Ex: √2 , √7 , π , ..... (π is irrational because it's approximated value)
- If the part of the the number is irrational, then the number
is irrational
- Ex: (5 + √3) , (√7 + 5) , 2√5 , √11/4 , 5/√13
* Lets solve the problems
28.
∵ √2/2 is an irrational number
∵ One term is an irrational number
∴ The difference represents an irrational number
29.
∵ The two terms are rational numbers
∴ The difference represents a rational number
30. ÷
∵ The two terms are rational numbers
∴ The quotient represents a rational number
31. ÷
∵ √2/2 is an irrational number
∵ One term is an irrational number
∴ The quotient represents an irrational number
Answer:
248000 miles
Step-by-step explanation:
if it takes 1 seconds then multiply 186,000 by 1
because 186,000 is equal to 1