Answer:
b(4) = -14
Step-by-step explanation:
b(n)=4-6(n-1)
let n=4
b(4) = 4 - 6(4-1)
b(4) = 4-6*3
b(4) = 4-18
b(4) = -14
Answer:
136112
Step-by-step explanation:
since the outer circle is 25cm wider on one side, the radius of outer circle is 25 cm wider. (imagine rotating the green line to match with the pink line, you'll see the outer circle radius more clearly)
r of inside circle = 148.4/2 = 74.2
r of outside circle = 74.2 +25 = 99.2
the shaded region = A of outer circle - A of inner circle
=3.14(99.2)^2 - 3.14(74.2)^2
area of a circle is , I plugged in known values above^.
= 30899.6096 - 17287.7096 = 13611.9 (I definitely recommend a calculator)
rounded to nearest whole number = 13612
469=18.50t +25
444=18.50t
t=24
he bought 24 t-shirts
The area of the parallelogram using area of rectangle and area of two triangles is 84 m²
<h3>How to find area of a parallelogram</h3>
- Area of a rectangle = length × width
= 8m × 7m
= 56 m²
- Area of each triangle = 1/2 × base × height
= 1/2 × 4m × 7m
= 1/2 × 28
= 14m²
- Total area of triangles = 2(14 m²)
= 28 m²
- Area of parallelogram = area of rectangle + area of two triangles
= 56 m² + 28 m²
= 84 m²
Learn more about area of triangle:
brainly.com/question/21735282