Answer:
C. There is no solution.
Step-by-step explanation:
Similarly to the previous question, you want to substitute one of these equations into the other:
21x + 7y = 41
-3x = y + 6
But first, you need to isolate for a variable. I'm going to isolate for y in the second equation to avoid fractions.
-3x = y + 6
y = -3x - 6
Now that I've done that, I can now plug it into the first equation to solve for x:
21x + 7(-3x - 6) = 41
21x + -21x - 42 = 41
0x = 41
0 ≠ 41
Since 0 ≠ 41, these lines are parallel, which means that there are no solutions.
5(10) - 2(3) , 50 - 6 , 44
Answer
The exact value of the lateral surface area = 395 cm²
The exact value of the total surface area = 572 cm²
Explanation
The solid shape is a cone with a height of 15 cm and the diameter of the base of the solid shape is 15 cm.
The Lateral Surface Area of the Solid Shape:
The formula to calculate the lateral surface area (LSA) of a cone is given by:
The radius will be = diameter/2 = 15cm/2 = 7.5 cm
To find legth, we use Pythagoras rule:
Put π = 3.14, r = 7.5 cm, and l = 16.77 cm into the lateral surface area formula:
Therefore, The exact value of the lateral surface area = 395 cm²
Total Surface Area of the Solid Shape:
To find the exact value for the total surface area of the solid shape, we use the total surface area (TSA) formula of a cone which is:
put π = 3.14, r = 7.5 cm, and l = 16.77 cm
The exact value of the total surface area = 572 cm²
Answer:
23
Step-by-step explanation:
F=(9/5)c + 32
F=(9/5)(-5) + 32
F=(-9) + 32
F=23