Answer:
Step-by-step explanation:
Use the following rules for exponents:
Simplify 24. Find two factors of 24, one of which should be a perfect cube:
Insert:
Now split the exponents. Split 10 into as many 3's as possible:
Insert as exponents:
Split 6 into as many 3's as possible:
Insert as exponents:
Now simplify. Any terms with an exponent of 3 will be moved out of the radical (rule #2):
Simplify:
:Done
Answer:
<h3>true in 1 st sorry friend I don't knowabout 2nd one </h3>
Answer:
Minimum=76, Maximum=86
Step-by-step explanation:
It indicates that temperature of enclosure should not vary by more than 5, so in this case we include 5 too. If it would have said till 5 we would not include 5.
From that statement, we can go about making an expression.
Half of the number (x), is equal to 2 less than 2/3rds of the number<em /><em>:
0.5x = (2/3)x -2
</em>1.5x = 2x - 6
-0.5x = -6
0.5x = 6
x = 12
So a number that such that statement is true is 12.
For question 6
Make x for first one subject of formulae
then it becomes
x=-2y
Substitution means replace your answer in the second part
since x=-2y
3(-2y) +4y = 4
-6y+4y=4
-2y=4
y= 4/-2
y=-2
Now to find x,replace the answer for y in one in the equation
so i replace y=-2 in the first part
x=-2y
x= -2(-2)
x=4
Therefore x=4 and y=-2
To check your answer replace x and y by the values you got and check if you get same answer.