Answer:
39.30 
Step-by-step explanation:
The area of the top surface of the wedge is the same as the area of a sector.
Area of a sector = (θ/
)
where: θ is the central angle, and r is the radius.
Given that: central angle = 
, radius = 10 centimetre.
Area of the top surface = Area of a sector = (θ/)
= 
x 
x 
= 
x x 100
= 39.2857
= 39.30
The area of the top surface of the wedge is 39.30 .
Honestly? Just review your notes and try to work out the problems yourself before taking a look at the answer. You can also google specific topics that the test will cover and try the practice problems.
The decay factor here is 0.85, and it means the car’s value changes by 85% every year, or goes down by 15% every year.
The formula for exponential decay is y = a(1 - b)^x
y is the final amount.
a is the initial amount, which is $30,000 in this case.
(1 - b) is the decay factor, or the number the original value gets multiplied by each year, which is 0.85 here.
b is the percent decrease in decimal form. In this case, we can find it using the formula (1 - b) = 0.85. We soon find that b = 0.15, or 15%.
x is the number of years.
Answer:
62
Step-by-step explanation:
1. Divide the shape into 3 individual shapes.
2. To get the area you must multiply the width and the length.
3. Let's gather the width and the length of each shape.
Shape 1: 7 and 8
Shape 2: 2 and 3
Shape 3: 2 and 3
4. For Shape 1: 7 times 8 is 56.
5. Shape 2 and Shape 3 are equal to each other.
6. For Shape 2 + Shape 3: 2 times 3 is 6
7. Now you must add the area of all the shapes together.
Area of Shape 1: 56
Area of Shape 2: 3
Area of Shape 3: 3
8. 56 + 3 + 3 = 62
This means the area of the shape is 62.
In Order For George To Make It To School By 8:50 He Must Leave At 8:15
