solve for the indicated variable means isolate that variable.
Ans(7)
P=IRT (T)
that means solve for T or make T alone on one side of equal.
To do that we just need to move IR on the left side
So we get:
Hence final answer will be 
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Ans(8)
2x-3y=8 (y)
-3y=8-2x
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Ans(9)
V=LWH (L)
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Ans(10)
A=2(L+W) (w)
A=2L+2W
A-2L=2W
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Ans(11)
ax+by=c (y)
by=c-ax
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Ans(12)
(R)
PN=R-C
PN+C=R
R=PN+C
First combine like terms.
4n-2n = 2n
now it's a one step equation:
2n=18
divide both sides by 2
n=9
An independent variable doesn’t have to rely on another variable. A dependent variable relies on the variable of another, and will change depending on it.
Answer:
c.132
Step-by-step explanation:
so we are given the diameter which is 42m **the diameter is the straight line that passes through the middle of the circle**
but in order to find the circumference we need to find the radius **the radius is always half (1/2,0.5) of the diameter**
so we have to divide 42/2 which equals 21
now we need to set up the formula;
c=2πr/c=2xπxr **when unknown variables such as 'r' are next to another mathematical numeral such as the pi symbol you don't really have to but the multiplication symbol between them**
c=2π21
=131.946891451
and in your case, it seems we must round to the tenths place so the nine then "becomes a ten" and you're left with 132
good luck :)
i hope this helps
have a good one !!
When two lines intersect, they will have a point of intersection where angles around this point will add up to 360°
Since the lines can intersect in many different ways, we cannot assume that the angles form will all be right angles (although this is possible, it doesn't always happen). The four angles can't also be all of the same sizes.
Refer to the diagram below, the intersection will definitely two pairs of vertical angles, x and y.
Answer: <span>When a pair of lines intersect, the vertical angles are congruent.
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