Answer:
George Washington :)
Step-by-step explanation:
Solution:
Given expression is
To solve this expression:
Using algebraic identity:
We can't solve it with division symbol. So change this into multiplication and solve it.
The second term is reversed when you change division into multiplication.
Now, cancel the common terms in the numerator and denominator.
Hence the answer is .
First organize the information we are given according to the problem.
*Angle 1 and Angle 3 are congruent.
*Angle 4 and Angle 6 are congruent.
*Angle 3 and Angle 4 are complementary. This means that the measure of angle 3 plus the measure of angle 4 equals to 90.
Now knowing this:
Angle 3 is 26.5° because it is congruent to angle 1.
Angle 4 is 63.5° because by subtracting 26.5 from 90, you'll get the sum of 63.5. Once more, this is because angles 3 and 4 are complementary.
Angles 4, 5, and 6 are adjacent angles which form a straight line. Straight lines have an angle measure of 180°. So together, both angles 4 and 6 measure 127°. Knowing that a line is 180°, the measure of angle 5 needs to be 53°. You can check this once more by adding all the three numbers and getting 180°.
-21 - 7x = 8x + 24
add 21 to both sides
-7x= 8x + 45
subtract 8x from both sides
-15x= 45
divide both sides by -15
x= -3
Hope this helps! :)
your scientific notation will be 2.505 x 10^4