1: -17 + 15 = -2 P = -17
2: 8 x -8 = -64 y = -8
3: -2 x 6 = -12
4: 8 - (-4) = 12
Hope I Helped
Answer:
Area of the circle = 49 π cm² = 153.86cm²
Step-by-step explanation:
Given that the diameter of the circle
d = 14
The radius of the circle
Area of the circle
A = πr²
A = 3.14 ×(7)²
A = 153.86 cm²
The worth of boat after 11 years is $ 3159.3013
<em><u>Solution:</u></em>
Given that,
Boat costs $16600 and decreased in value by 14% per year
To find: Worth of boat after 11 years
<em><u>The formula for decreasing function is given as:</u></em>
![y = a(1-r)^t](https://tex.z-dn.net/?f=y%20%3D%20a%281-r%29%5Et)
Where,
y is the value after "t" years
t is the number of years
a is the initial value
r is decreasing rate in decimal
<em><u>From given,</u></em>
a = 16600
t = 11
![r = 14 \% = \frac{14}{100} = 0.14](https://tex.z-dn.net/?f=r%20%3D%2014%20%5C%25%20%3D%20%5Cfrac%7B14%7D%7B100%7D%20%3D%200.14)
<em><u>Substituting the values we get,</u></em>
![y = 16600(1-0.14)^{11}\\\\y = 16600(0.86)^{11}\\\\y = 16600 \times 0.1903\\\\y = 3159.3013](https://tex.z-dn.net/?f=y%20%3D%2016600%281-0.14%29%5E%7B11%7D%5C%5C%5C%5Cy%20%3D%2016600%280.86%29%5E%7B11%7D%5C%5C%5C%5Cy%20%3D%2016600%20%5Ctimes%200.1903%5C%5C%5C%5Cy%20%3D%203159.3013)
Thus the worth of boat after 11 years is $ 3159.3013
Problem: Maria baked 50 cupcakes for a bake sale, 29 of the cupcakes were sold, then she baked more cupcakes and then sold 52 and had two leftover cupcakes. How many cupcakes did she bake the second time?
Solution: 50 - 29 + a - 52 = 2
50 - 29 =21...(and etc.)
Hope this helps! :)
Answer:
75
Step-by-step explanation:
7x3=21
5(21-6)
5(15)
75