Step-by-step explanation:
This can be written as;
Perform factorization
9-a²=difference of squares formula
(3+a)(3-a)
4a²-4a-24
4(a²-a-6)
4(a²-3a+2a-6)
4(a(a-3)+2(a-3))
4((a+2)(a-3))
a²-6a+9
a²-3a-3a+9
a(a-3)-3(a-3)
(a-3)(a-3)
Rewrite the operation as;
cancel common to remain with;
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Factorization : brainly.com/question/11930808
Keywords : Operation
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Sin(28) = m/27
or
m = 27 x (sin(28))
That's the easy way to find it, but if they want you to use cos, that is really tricky. They give you everything that cos would show.
you could just show a^2 + b^2 = c^2
(18)^2 + b^2 = (27)^2
324 + b^2 = 729
b^2 = 405
b = square root of 405
b = 20.1246117975
Answer:
c
Step-by-step explanation:
11 inches would be the long side. Since we know 3 is the height, divide 330 by it and then divide that (110) by 11. This will give you the width which is 10. The area of the problem was already found. The area was 110 in^2
Answer:
D) x=
Step-by-step explanation:
The quadratic formula is :
A in terms of this question=9
B in terms of the question is 12
C in terms of the question is -24.
This question is an example of a quadratic equation. To work this out you may first need a calculator. The first step is to substitute the values of a,b and c into the formula. So once substituted the formula of becomes . Although when written in a calculator there will not be a plus and minus button and so you would have to do this separately.
However when substituting the values it would be best practice to put them in brackets.
1) Substitute the values into the equation for +.
2) Substitute the values into the equation for -.