Answer:
Step-by-step explanation:
<u>Given</u>
<u>Find</u> a₁
Use the nth term equation of AP
Apply to the given case and solve for a₁
- - 2 = a₁ + 6(- 1)
- - 2 = a₁ - 6
- a₁ = 6 - 2
- a₁ = 4
Answer:
The side lengths are 30, 36 and 39.
Step-by-step explanation:
To find the missing side, write a proportion using side lengths from each similar shape. A proportion is an equation that sets equal two ratios.

Find y by cross multiplying numerator and denominator of each fraction.
13y = 39(12)
13y = 468
y = 36
Find the other missing side by repeating the process.

Find y by cross multiplying numerator and denominator of each fraction.
13y = 39(10)
13y = 390
y = 30
The side lengths are 30, 36 and 39.
Walls = Plane
Intersection = line
Corner = Point
PEMDAS
3 ( x - 7 ) = 9 ( 4x + 5 )
3x - 21 = 36x + 45
-36
-33x - 21 = 45
+21
-33x = 66
------ ------
-33 -33
x = -2
Your answer should be -2
I hope this helps!
Answer:
1) 1.6 inch
2) 10.05inch
Step-by-step explanation:
radius = diameter/2 = 3.2/2 = 1.6 inch
circumference = 2πr = 2 * 3.14 * 1.6 =10.048=10.05inch