To solve quadratics, the most correct and effective way, in my opinion, is the quadratic formula:
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Plugging it in, we get:
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So the final answer is:
and
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Answer:
The product of sin 30° and sin 60° is the same as the the product of cos 30° and cos 60°.
The sum of an angle and its complement =90°
The angle is 59°; its complement is 31°
Step-by-step explanation:
Given measure of an angle is 28 degrees greater than its complement.
By definition the sum of an angle and its complement =90°
Let the angle be x
The angle's complement must be x−28° (from the given information)
x+(x−28°)=90° or
2x= 118° or
x= 59° or
So the angle is 59° and its complement is 59°−28°=31°
Answer:
For 24 is log base 4 of 2=x. Rewrite log base 4 (2)=x in exponential form using the definition of a logarithm. If x and b are positive real numbers and b does not equal 1, then log b (x)=y is equivalent to b^y=x. 4^x=2 . The answer would be 1/2.... For 27 is 3. For 21 is 3^x=1/3 3^x= 1/3^1 3^x= 3^-1 it is -1.