Answer:
<h3>29 and 32</h3>
Step-by-step explanation:
Let x = number
Let y = second number
We know that there are two true equations from this. Here is shown below the equations.
x + y = 61
x + 3 = y
We could use the substitution method for finding the numbers. After that, we continue on to solve to find the first number.
x + (x+3) = 61
2x + 3 = 61
2x = 58
2x/2 = 58/2
x = 29
Now that we know that the first number is 29, plug it in to the second equation to find the second number.
x + 3 = y
29 + 3 = y
y = 32
Proof that these numbers are the correct answer:
32 + 29 = 61
61 = 61 (Which is true!)
To support me, please give me the brainliest answer. It would be greatly appreciated. Thank you!
To find it it is
ax^2+bx+c
if the first term (a) is 1 then c=b/2
b=-1/4
(-1/4)/2=-1/4 times 1/2=-1/8
k=-1/8
Answer:
602.9 cm²
Step-by-step explanation:
==>Given:
A hemisphere with radius of 8cm
π = 3.14
==>Required:
Total surface area of hemisphere
==>Solution:
The total surface area of the hemisphere (TSA) = Curved surface area of hemisphere (CSA)+ base area (BA)
If surface area of a sphere is given as 4πr², therefore, the area of a hemisphere would be ½ of 4πr² = 2πr²
CSA = 2πr²
Base area (BA) = area of circle = πr²
Thus, TSA = 2πr2 + πr2 = 3πr2
TSA of hemisphere = 3 × 3.14 × 8²
TSA = 3 × 3.14 × 64
TSA = 602.88
TSA of hemisphere = 602.9 cm² (approximated to 1 decimal place)
Area = (1/2) * 4 * 5 = 10 cm²
