Answer:
P = (18a+10b+13) cm
Step-by-step explanation:
Given that,
A triangle has the lengths of (10a+9) cm, (8a—3) cm and (10b+7) cm.
We need to find an expression that represents the perimeter of the triangle.
Perimeter = sum of all sides
P = (10a+9) + (8a-3) + (10b+7)
Taking like terms together,
P = (10a+8a)+10b+(9-3+7)
= 18a+10b+13
Hence, the epresssion for the perimeter is (18a+10b+13) cm.
3x + 14 = 143
3x = 129
X = 43
Answer:
B, False,
Step-by-step explanation:
Remember that the cone volume formula is 
, with r = radius and h = height. Using our information, we can form our equation as such: 
(I'll be keeping the answer in pi form.)
Firstly, solve the exponents:
Next, multiply 4 and 19/3 together and your answer should be (rounded to the hundreths): V = 25.33π un^3
the answer is 11/4
The unit rate of change between variables is the quotient between the difference between y-values and the difference between x-values
