Answer:
B
Step-by-step explanation:
107 and y form a straight angle and are supplementary, thus
107 + y = 180 ( subtract 107 from both sides )
y = 73
The sum of the interior angles of a quadrilateral = 360°
Sum the given angles and equate to 360
117 + 79 + 73 + x = 360, that is
269 + x = 360 ( subtract 269 from both sides )
x = 91
Thus x = 91, y = 73 → B
From the Quotient-Remainder Theorem follows that for every f(x) there exist unique polynomials q(x) and r(x) such that:
,
where r(x) is called remainder.
If r(x)=0, then f(x)=h(x)q(x) and q(x) is adivisor. If q(x) is of form q(x)=x-a, then a is a root of f(x).
So the vertex formula is A(X - H)^2 + K so find the vertex and plug all numbers in
this gives you (x - 2.5)^2 -3.25 = f(x)
Answer:
B
Step-by-step explanation:
The "value" of a function is the y-value.
Since we want negative y values, we look at "WHERE" the function is "UNDER" the y-axis.
Looking closely, it looks that function (the dip) is from x = -1 to x = 3
Hence, the function is negative at the interval -1 ≤ x ≤ 3
B is correct.
Answer:
Step-by-step explanation:
When taking 100 samples of size 30 or greater from a population, exactly 95 of them will create a confidence interval that contains the true population mean. True or false?
This statement is false, or better still, ambiguous. 100 samples of size 30 (or greater) each, means 300 total and it can't be just 95 of them that will contain the true population mean.
