It means t is less than or equal to -4 so it could be -4 or below. Any other questions? :)
Volume is area of the triangular part x length.
Area of triangle = 1/2 x base x height = 1/2 x 6 x 4 = 12 square feet.
Volume = 12 x 8 = 96 cubic feet.
Surface area = area of two triangles ( front and back ) , which we calculates the area of one in Part A, plus the surface area of the two sides plus the area of the bottom:
Area of two triangles = 12 x 2 = 24 square feet.
Area of one side = 5 x 8 = 40 square feet
Area of two sides = 40 x 2 = 80 square feet.
Area of bottom = 6 x 8 = 48 square feet.
Total surface area = 24 + 80 + 48 = 152 square feet.
It is not. 9w x 0 is 0, then 0-12 is -12.
To get how many customers Sam has, write an equation that will relate to the gross profit. Let n be the customers. Since for 52 weeks, Sam charges $25 per week per person, multiply n by the number of weeks and the charge. The equation is written as $88,400 = 52 weeks x $25 per week x n persons. Divide $88,400 by the product of 52 weeks and the $25 charge. The answer will be 68. The annual operating expense $48,000 is just there to make confusion.
Answer:
- The function is injective but nor surjective
Step-by-step explanation:
<u>We see that:</u>
<u>For any x₁ and x₂ ∈ N, </u>
- f(x) = x₁³ = x₂³ ⇒ x₁ = x₂, both are natural numbers
It it confirmed one-to-one, hence it is injective
<u>Check the surjectivity:</u>
f(x) = y ∈ N
<u>Let y = 2, then:</u>
Since x is not natural, the function is not surjective
