Answer:
x = 2
z = 93°
Step-by-step explanation:
Opposite angles are equal
9x + 69 = 87
9x = 87 - 69
x = 2
A straight line is 180°
180 - 87 = z
z = 93°
Answer:
8.78 = 9.00
6.32 = 6.00
9.17 = 9.00
9 + 6 + 9 = 24
Estimated total spend is approximately €24.00.
Answer: Rejecting the mean weight of each cake as 500 gram when H subscript 0 equals 500
Step-by-step explanation:
Given that :
Null hypothesis : H0 =500
Alternative hypothesis : Ha < 500
Type 1 Error: Type 1 error simply occurs when we reject the Null hypothesis when the Null is true. Alternatively, type 11 error occurs when we fail to reject a false null hypothesis.
Hence, in the scenario above, a type 1 error will occur when we reject the mean weight as 500 even though the Null hypothesis is True.
Answer:
c
Step-by-step explanation:
Given the roots are x = - 1 + 4i and x = - 1 - 4i then the factors are
(x - (- 1 + 4i))(x - (- 1 - 4i))
= (x + 1- 4i )(x + 1 + 4i )
= (x + 1)² - 16i² → [ i² = - 1 ]
Expand and simplify
= x² + 2x + 1 + 16
Hence
x² + 2x + 17 = 0 → c
For an individual, annual gross income equals the amount of money
that you earned in a year before taxes or other deductions. If you're
a business, your annual gross income would be your company's
revenue, less any business expenses (it may also be referred to as
your gross profit).