Answer: First Option is correct.
Step-by-step explanation:
Since we have given that
Cost of per pound= $1.28
If a sack of cornmeal weighs = 4 pounds 12 ounces
First we need to convert ounces into pounds ,
as we know that ,
Now, total pounds of cornmeal is given by
Total cost for 4.75 pounds is given by
So, First Option is correct.
Answer:
15 in
General Formulas and Concepts:
<u>Pre-Algebra</u>
<u>Geometry</u>
Area of Square Formula: A = s²
- <em>s</em> is the side length
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify variables</em>
A = 225 in²
<u>Step 2: Solve for </u><em><u>s</u></em>
- Substitute in variables [Area of a Square Formula]: s² = 225 in²
- [Equality Property] Square root both sides: s = 15 in
If we have a triangle with sides a and b and an included angle of C, then the area of the triangle would be:
A = (1/2) ab sin C
If angle C is bisected into two each angles each measuring x, then the area can be expressed as:
A = (1/2) ab sin 2x
Using the trigonometric identity for sin 2x = 2 sin x cos x, the area would now be:
A = ab sin x cos x
Since the line segment s divides the angle into two, it also divides the triangle into two. Another equation for the area is:
A = (1/2) as sin x + (1/2) bs sin x
Equating the two equations gives us:
ab cos x = (1/2) as + (1/2) bs
Solving for s
s = 2 ab cos x / (a + b)
D = distance
d^2 = x^2 + y^2
dd' = 2xx' + 2yy' Taking the derivative wrt time
d' = (2xx' + 2yy')/d
d' = (42x21 +56x28)/70 = 35 mph