Answer:
28,500,000 into scientific notation is 2.85 x 10⁷
2.85 x 100 in scientific notation is 2.85 x 10²
if you mean the multiplication symbol, it just means to multiply. otherwise, there i don't see an x anywhere else
Answer:
Is Jack's mom trying to give him diabetes?
Step-by-step explanation:
Answer:
17 and 10
Step-by-step explanation:
Write the problem as an equation.
a+b=27
a=b-7
Where a and b are the two numbers you are trying to find. You could use any variables. Then solve.
b+(b-7)=27 Sub (b-7) for a
2b-7=27 Group like terms
2b=34 Add 7 to both sides
b=17 Divide both sides by 2.
Because b=17, a must be 10.
Simplify the square root of 54x^9y^7 or √(54x^9y^7)
54x^9y^7 = (3x^4y^3)^2 (6xy)
Now square root of (3x^4y^3)^2 = 3x^4y^3
So the final answer is 3x^4y^3 √(6xy)
<span>Hence option “B” is correct. </span>
Answer:
B
Step-by-step explanation:
The mean is calculated as
mean =
=
= = 4.2 Kg → B