Answer:
190 square millimetres.
Step-by-step explanation:
19mm×10mm=190mm²
Answer:
ab² - a²b
Step-by-step explanation:
a²b⁴ - b²a⁴ can be factored as a²b²(b² - a²) which becomes a²b²(b + a)(b - a). Since the numerator and denominator both have (a + b) and ab the final answer is ab(b - a) = ab² - a²b.
Answer:
Step-by-step explanation:
You already highlighted the term coordinate ratio in purple.
Answer:
<u>417.4ft^2</u>
Step-by-step explanation:
Surface area of a cone = πr(r+√r²+h²)
r is the radius
h is the height
Substitute
Surface area of a cone = π(5)(5+√5²+21²)
Surface area of a cone = πr(5+√25+441)
Surface area of a cone = π(5)(5+21.59)
Surface area of a cone = 3.14*5*26.59
Surface area of a cone <u>= 417.4ft^2</u>
<u>Hence the surface area of the cone is 417.4ft^2</u>
Answer:
20ft × 17ft
Step-by-step explanation:
(20-x)(23-x) = (20×23) - 120
460 - 43x + x² = 460 - 120
x² - 43x + 120 = 0
x² - 40x - 3x + 120 = 0
x(x - 40) - 3(x - 40) = 0
(x - 40)(x - 3) = 0
x = 3, 40
x = 3
New dimensions:
(23-3) × (20-3)
20 × 17
