1. The formula for calculate the area of a rectangle, is:
A=LxW
A is the area of the rectangle
L is the length of the rectangle.
W is the widht of the rectangle
2. You have that:
-The<span> rectangular Corn Hole area has a width of 5 feet and a length of 10 feet, so:
L1=10 feet
W1=5 feet
- When</span> a uniform amount is added to each side (x), the area is increased to 84 feet². Then, you have a different length (L2) and a different width (W2):
3. The new length is:<span>
L2=L1+x+x
L2=L1+2x
L2=10+2x
4. The new width is:
W2=W1+x+x
W2=W1+2x
W2=5+2x
5. The new area is:
A2=84 feet</span>²<span>
6. Then, you have:
A=LxW
84</span>=(10+2x)(<span>5+2x)
7. When you apply the distributive property, you obtain a quadratic equation:
4x</span>²+30x-34=0
<span>
8. You can solve with by applyin the quadratic formula:
x=(-b±√(b^2-4ac))/2a
a=4
b=30
c=-34
9. Then, the answer is:
x=1 feet
</span><span>
</span>
A: a flow chart would best describe the steps
Answer:
Just divide dollar amount by unit count
2.35/24 =$ ______ per pencil
so each= =0.097917
so 97 cents
Answer: x= 1/2k
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Hope this helps!
The formula for interval estimate would be: μ = M ± Z(<span>sM</span>)
Where: μ is estimate
M is the mean
Z is the z value
(<span>sM</span>) is the standard
error
μ = M ± Z(<span>sM</span>)
n = 200 rather than 50 (√200 = 2√50)
<span>⇒ ME = (1/2) * 1.32 = .66</span>
<span>Using the formula above, plugging this in will give us: μ
= 19.76 ± .66</span>
<span> = 19.76 ± .66 is
the confidence interval or interval estimate</span>
