According to the order of operations, exponents must be evaluated before multiplication.
Here's and example where x=2.
7*3^2
7*9
63
21^2=441
63 does not equal 441
Answer: $7.50
Step-by-step explanation: 1.25(6)
The difference in temperatures is 54+12, so the difference is 66
Answer:
B
Step-by-step explanation:
Follow the arrow from the x- value in the domain to the corresponding value in the range, that is
x = - 1 → f(- 1) = 5
x = 0 → f(0) = 3
x = 1 → f(1) = 5
x = 2 → f(2) = 11
x = 3 → f(3) = 21
Thus B shows the appropriate mapping
Answer:
x = 21.5
Step-by-step explanation:
In the given trapezoid, the angles are consecutive interior angles.
i.e, consider the parallel sides of a trapezoid as parallel lines and the common side as the transversal. So, it is parallel lines cut by a transversal make a pair of consecutive interior angles which are supplementary.
i.e,
(5x + 13)° + (3x - 5)° =180°
5x + 13 + 3x - 5 = 180
8x + 8 = 180
8x = 180 - 8 =172
x= 172/8 = 21.5
So, 5x + 13 = 5(21.5) + 13 = 120.5°
3x - 5 = 3(21.5) -5 = 59.5°