<em>86.20 ft²</em>
- Step-by-step explanation:
<em>Hi there !</em>
<em>A = A₁ + A₂</em>
<em>A₁ =semicircle</em>
<em>A₁ = πr²/2</em>
<em>r = d/2 = 6.4ft/2 = 3.2 ft</em>
<em>A₁ = 3.14×(3.2ft)²/2 ≈ 32.15 ft²</em>
<em />
<em>A₂ = trapezium</em>
<em>A₂ = (b + B)×h/2</em>
<em>A₂ = (5.1ft + 6.4ft)×9.4ft/2 = 54.05 ft²</em>
<em />
<em>A = 32.15 ft² + 54.05 ft² = 86.20 ft²</em>
<em>Good luck !</em>
Answer Should be= B
Hope this helps.
Answer:
14.38
Step-by-step explanation:
1. multiply the 5 packs of pencils times 0.79 each (5x0.79 = 3.95)
2. multiply the 8 packs of pens times 1.19 each (8x1.19=9.52)
3. add the total of pens and pencils together (3.95+9.52=13.44)
4. multiply 13.44 times 7% sales tax (13.44x.07=0.94)
5. add the total plus the sales tax (13.44+0.94=14.38
An expression is defined as a set of numbers, variables, and mathematical operations. The given expression when simplified will be equal to 14¹⁰. The correct option is A.
<h3>What is an Expression?</h3>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The given expression can be simplified as shown below.
14¹⁵ / 14⁵
= 14¹⁵ × (1 / 14⁵)
Using the exponential property 1/aˣ = a⁻ˣ, we can write,
= 14¹⁵ x 14⁻⁵
Using the exponential property aˣ × aᵇ = a⁽ˣ⁺ᵇ⁾, we can write,
= 14⁽¹⁵⁻⁵⁾
= 14¹⁰
Hence, the given expression when simplified will be equal to 14¹⁰.
Learn more about Expression here:
brainly.com/question/13947055
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Answer:
new signs are needed.
Step-by-step explanation:
Given: A 
-kilometer section of a highway is designated as a scenic byway. New signs will be placed at the beginning and end of this section and at every 
Km in between.
To find: How many new signs are needed?
Solution:
We have,
A -kilometer section of a highway is designated as a scenic byway.
New signs will be placed at the beginning and end of this section and at every Km in between.
So, there are 
signs placed, one at the beginning and one at the end.
Now, in between these signs there will be 
signs.
Hence, the total new signs that are needed is 
.
