Answer:
Step-by-step explanation:
<u><em># 21.</em></u>
÷ ( - 0.35 ) = - ÷ 
= - ÷ 
= - × 
= - 
<em>(B).</em>
<u><em># 22.</em></u>
( 
- 
) ÷ ( - 2.5 )
= 
= 3.5
= 
= 
= 9.75
( 3.5 - 9.75 ) ÷ ( - 2.5 ) = ( - 6.25 ) ÷ ( - 2.5 ) = 2.5 <em>(D).</em>
Answer:
Reduced equaton is 
.
Step-by-step explanation:
Given parametric equation is,
and 
Now, 
substitute in second equation we get,
which is the corresponding rectangular equation after eliinating the parameter.
Now consider,
Of which,
Slope : 
when,
ans so on. Thus sketching th curve will look like given,
Search up heating curve chemistry: it should look somewhat like that lol :). But, the last interval should have a small slope, the middle interval a big slope, and the first interval: a medium slope.
So, first we multiply the fraction by using the formula a/b times c/d= a times c/b times d
=(y^2-16) times 5y/2y(y-4)
Now, we cancel the common factor y
=(y^2-16) times 5/2(y-4)
Now, we factor 5(y^2-16)
We factor (y^2-16) first
y^2-16
Rewrite 16 as 4^2
y^2-4^2
Now, apply the formula x^2-y^2=(x+y)(x-y)
=y^2-4^2=(y+4)(y-4)
=5(y+4)(y-4)
=5(y+4)(y-4)/2(y-4)
Cancel the common factor y-4
=5(y+4)/2
Answer: 5(y+4)/2
Answer:
Help with what
Step-by-step explanation:
