Answer:
Step-by-step explanation:
30x + 42 = 6(5x + 7) you can understand it now
Answer:
33.53
Step-by-step explanation:
OB is a radius of the circle, and OC is also a radius of the circle, so both are equal length. That makes ΔOBC an isosceles triangle.
If we cut ΔOBC in half, the angle formed is 125° / 2 = 62.5°.
Therefore:
sin 62.5 = (x/2) / 18.9
x = 37.8 sin 62.5
x ≈ 33.53
The sum of the 3 inside angles need to equal 180.
You know 2 of the angles: 90 and 39
The third angle is 180 - 90 - 39 = 51 degrees.
Side a is given as 24
Side B = tan(39) = b/24 = 19.43 (round as needed)
Side C = cos(39) = 24/c = 30.88 (round as needed)
Answer:
The correct answer is option C. x² - 4
Step-by-step explanation:
Area of rectangle = Length * Width
It is given that ,
The length of a side of a rectangle is 2 units less than a number, and the width is 4 units more than the length.
Let 'x' be the number
Length of rectangle = x - 2
Width = Length + 4 = x - 2 + 4 = x + 2
<u>To find the area of rectangle</u>
Area = Length * Width
Area = (x - 2)*(x + 2) = x² - 4
Therefore option C. x² - 4 is the correct answer