Step-by-step explanation:
1-(2x+4)= 1-2x-4= -2x-3
Answer:
<h2>cos 60° = 1/2 because the angles are complements</h2>
Step-by-step explanation:
Given sin 30° = 1/2, to check which of the statements is correct we will apply the Pythagoras theorem to a right angled triangle shown in the attachment.
using the SOH CAH TOA trig identity on the right angled triangle, ACD gotten from the equilateral triangle ABC;
From ΔACD, AD is the hypotenuse, DC is the opposite side to the angle 30° and AC is the adjacent.
From the diagram, sin30° = opp/hyp = DC/AD
sin30° = 1/2
Taking consideration of the acute angle 60°, the opposite side to the angle will be AC and the adjacent side will be CD.
According to CAH, cos 60° = adj/hyp = CD/AD
Given CD = 1 and AD = 2
cos60° = 1/2
This shows that sin30° = cos60° = 1/2
Note that ∠CDA and ∠DAC are angles complementary. Complementary angles are angles which have its sum to be 90°
There are 30 cuboids in that one cube. (6*5) or (10*3)!
Answer: A
Step-by-step explanation:
It wants you to make it an in improper fraction
Answer:
3 times the length of the corresponding sides of the original rectangle.
Step-by-step explanation:
Because the length measures have not been given for the original rectangle, the exact measures of A'B'C'D' can not be found. But, because the factor is 3, then the side lengths have been tripled. For example, side A'B' would be 3 times the length of side AB. Side C'D' would be 3 times the length of side CD.