Answer:
Width = 7. Length = 9.
Step-by-step explanation:
To get the the size of the width, it says that L = (W + 2), so we put in W+2 as a substitute for L. Now we have the equation the area or 63 = W x (W+2). I'm not so great with these problems so I typically just plug in a number for W till I get the area, and put w into the L = W + 2 equation to get L.
Answer:
197 million square miles
Step-by-step explanation:
Remark
What the equator is telling you is that the circumference around the earth is approximately 24902 miles. So before you can find the surface area, you need to find the radius of that circumference.
Equations
C = 2*pi*r
Area = 4pi*r^2
Solution
<em><u>Radius</u></em>
C = 24902
pi = 3.14
r = ?
24902 = 2 * pi * r
r = 24902 / (2 * pi)
r = 3965.29
==========
<em><u>Surface Area</u></em>
Area = 4 * pi * r^2
Area = 4 * 3.14 * 3965.29^2
Area = 4 * 3.14 * 15,723,498
Area = 197 000 000 square miles
<h2>Answer:</h2>
- 2 factors
- 2 terms
<h2>Step-by-step explanation:</h2>
Consider the expression 4(8x + 5)
Complete 2 descriptions of the parts of the expression.
1. The entire expression is the product of 2 factors.
- 1 factor is 4
- 2 factor is (8x + 5)
2. On its own, (8x + 5) is a sum with 2 terms.
- 1 term is 8x
- 2 term is 5
(7 cm)*(10 cm) = 70 cm^2
The area is the product of length and width.
