100x5=500
90x5= 450
8x5= 40now add
500+450+40=990
:) hope this helps
Y = x + 4
y = -x - 6
x + 4 = -x - 6
x + x = -6 - 4
2x = -10
x = -10/2
x = -5
y = x + 4
y = -5 + 4
y = -1
one solution : (-5,-1)
Answer:
The answer is below
Step-by-step explanation:
A tangent is a line which touches a circle at one point. The angle between a tangent and a circle is 90°.
The two tangent theorem states that tangent that meet at the same point are equal in length.
Therefore:
CD = c + d
but c = 5.1, hence:
CD = 5.1 + d
12.1 = 5.1 + d
d = 7
AD = a + d; but AD = 12.2, d = 7
12.2 = a + 7
a = 5.2
AB = a + b; but b = 3.3
AB = 5.2 + 3.3 = 8.5
BC = b + c = 3.3 + 5.1 = 8.4
Perimeter of ABCD = AB + BC + CD + AD = 8.5 + 8.4 + 12.1 + 12.2 = 41.2
Given:
Area = 21 in²
length = 6 in.
width = ?
The area of a rectangle is computed by multiplying its length by its width.
A = l * w
21 in² = 6 in * w
To find width, divide the area by its length.
21in²/6in = w
3.5 in. = w.
The width is 3.5 inches.
to check:
Area = Length * Width
21 in² = 6 in x 3.5 in
21 in² = 21 in²