Using the order of operations, what should be done first to evaluate (-2)^3 + 4 / (-15 + 9)(3) - 4
2 answers:
Answer:
A. add -15 and 9
Step-by-step explanation:
We follow the PEMDAS rule as the order of operations to evaluate expressions.
P-Parenthesis
E-Exponents
M-Multiplication
D-Division
A-Addition
S-Subtraction
Given expression :
In order to evaluate the expression, the first step would be to do the parenthesis operations which requires to add -15 and 9.
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Answer:
The Sum of the areas of theses triangles is 169/3.
Step-by-step explanation:
Consider the provided information.
The hypotenuse of an isosceles right triangle is 13 inches.
Therefore,
Then the area of isosceles right triangle will be:
Therefore the area is:
It is given that sum of the area of these triangles if this process is continued infinitely.
We can find the sum of the area using infinite geometric series formula.
Substitute in above formula.
Hence, the Sum of the areas of theses triangles is 169/3.
72°
the sum of the exterior angles of a polygon = 360°
for a pentagon with 5 sides the
exterior angle = = 72°
Answer:
180°
Step-by-step explanation:
cos(x) = - 1 has only 1 solution in the required interval , that is
x = (- 1) = 180°