There are 18 edges in all, the entire shape.
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Answer
25/9
Step-by-step explanation:
70 + 20 =90
25/9 x 90 = 250
Answer:
d. x = -5 or 1
Step-by-step explanation:
x² + 4x - 5 = 0
completing the square means that we find an expression in the form
(x + a)(x+a) = (x+a)²
or
(x - a)(x - a) = (x - a)²
the fact that the middle term is +4x tells us we are looking for
(x + a)²
so,
(x + a)² = x² + 2ax + a²
now let's compare this with what we have :
x² = x²
2ax = 4x
2a = 4
a = 2
that means the full square is
(x + 2)² = x² + 4x + 4
but we have -5 in our original equation.
what do we need to do to change this to +4 ?
we have to add 9.
and to keep the equation true, we need to do this on both sides :
x² + 4x -5 + 9 = 0 + 9
x² + 4x + 4 = 9
(x + 2)² = 9
x + 2 = ±3
x + 2 = +3
x = 1
x + 2 = -3
x = -5
and that gives us answer option d. -5 or 1
Answer:
c
Step-by-step explanation:
because it times it in six
In the research, the distribution is described by its shape. If there are more higher values than lower values, the distribution is skewed left.
<h3>How to illustrate the research?</h3>
It should be noted that when the distribution of data is skewed to the <u>left</u>, the mean is less than the median.
The distribution can be described by its center. If the distribution is skewed left or right, the <u>median</u> is an accurate measure of center.
The distribution can be described by its spread. If the data set does not have an outlier, the interquartile range is an accurate measure of spread.
Learn more about research on:
brainly.com/question/25257347