Answer:
.2
Step-by-step explanation:
(.35((.05)).25)
.05/.25 = .2
Hello,
Answer B
a) Δ=8²+4*2=72
b)36-4*3*2=12
c)4²+4*1=20
d)4-4*4*1=-12
Let's simplify step-by-step.
<span><span>18x</span>+6
</span>There are no like terms.
Answer:
<span>=<span><span>18x</span>+<span>6
or
</span></span></span>Factor <span><span>18x</span>+6
</span><span><span>18x</span>+6
</span><span>=<span>6<span>(<span><span>3x</span>+1</span>)
</span></span></span>Answer:
<span>6<span>(<span><span>3x</span>+1</span><span>)</span></span></span>
The equation given is
where a is some number.
We can solve for x by taking the square root of both sides.
Now let's think through what happens for various values of a.
TWO SOLUTIONS
If a is a positive number the above yields two solutions. Take for example:
There will be two solutions (one positive and one negative) as there are two numbers (here -7 and +7) that when multiplied by themselves give 49. That is,
and
. The positive root is called the principal root and the negative root is called the secondary root. This will be the case anytime we take the root of a positive number.
ONE SOLUTION
If a = 0 there is only one solution. That is because
and
. Zero is neither positive nor negative and it has only one root which is 0 itself. So in this case there is only one solution and it is 0.
NO (REAL) SOLUTIONS
If a is negative we would be taking the square root of a negative number. There is no (real) number that when multiplied by itself gives a negative number. Take for example
which gives us
. The square root of -49 is not 7 because (7)(7)=49 which is positive. The square root of -49 is not -7 because (-7)(-7)=49 which is also positive. There is no real number that gives -49 when multiplied by itself. I say "real" numbers because there do exist imaginary/complex numbers but because of the way the questions was asked I imagine you may not know about these yet.
Answer:
I'm pretty sure it would be base x height divided by 2 so 20×6÷2