3x-5=-8(6+5x) plz help me with this problem
1 answer:
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Answer:
The sales tax is equal to
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
Let
y-----> the cost of the purchase
x ----> the sales tax
step 1
Find the value of k
For
substitute
The linear equation is equal to
step 2
what would be the sales tax on a purchase of $46
For
substitute in the equation
Sphere
The surface area of the sphere is 80384 sq yd
Step-by-step explanation:
Given the ride goes around the widest circle of the sphere whose circumference is 502.40 yd.
The widest circle of the sphere is the plane contains the sphere's center
The circumference of the widest circle is where r is radius of the sphere.
The surface area of the sphere is defined as where r is radius of the sphere.
So 502.4 =
⇒502.4 = 2 × 3.14 × r
⇒ r = 502.4 ÷ (2 × 3.14)
⇒
Surface Area A =
⇒ A = 4 × 3.14 × (502.4 ÷ 6.28) × (502.4 ÷ 6.28)
⇒ A = 80384 sq yd
The surface area of the sphere is 80384 sq yd