Actually,
I think the question should be, "In what range(s) of x-values must
there be a root of the POLYNOMIAL?"
Unless you are working with some real strange maths, polynomials are
smooth and continuous. If you drew a smooth and continuous line through
the points in the graph, where would the line have to cross the x-axis?
Answer:
55% or 0.55(as a decimal)
Step-by-step explanation:
40% of their clients buy auto insurance policies = P(A)
30% of their clients buy home insurance policies = P(H)
15% of their clients buy both home and auto insurance policies = P( A ∩ H)
The probability a randomly selected client buys a home or auto insurance policy = P (A ∪ H) is calculated as
P ( A ∪ H) = P(A ) + P ( H ) - P( A ∩ H)
= 40% + 30% - 15 %
= 70% - 15%
= 55%
Therefore, the probability that a randomly selected client buys a home or auto insurance policy is 55% or expressed as decimal = 0.55
These are the statements that accompany this question:
<span>A.The function is a linear function.
B.The function is a nonlinear function.
C.The function does not change at a constant rate.
D.The function is an increasing function.
E.The function changes at a constant rate.
An this is the assesment of each of statement:
</span>
<span>A.The function is a linear function.
TRUE: a linear function can take the forms Ax + By - C = 0, or y = mb + b
You can verify that y = 2000 - 90 x is of this type.
B.The function is a nonlinear function.
FALSE: we showed the opposite in A)
C.The function does not change at a constant rate.
FALSE: the rate of change of a linear function is constant and it is known as the slope.
D.The function is an increasing function.
FALSE: the value of y decreases as x increases, given that the slope is negative ( -90).
E.The function changes at a constant rate.
TRUE: the constant rate is the slope, i.e. - 90.
</span>
Answer:
the answer is D
Step-by-step explanation:
3x-21=x+7
2x-21=7
2x=28
x=14
substitute x for 14
14+7=21
2X14-21+21
