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3 years ago

BRAINLIESTTTTTTTTTTT

Mathematics

1 answer:

olga2289 [7]3 years ago

3 0

You can tell if a data set is symmetrical if when you plot the points on the graph, you can draw a line down the center, and is is the same on either side if the line. If it's asymmetrical, there is no central line.

Symmetrical is my first attachment, asymmetrical is the second :)

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What is the vertex of Y equals X to the second power -4x-5

Fed [463]

Answer:

vertex = (2, - 9 )

Step-by-step explanation:

Given a quadratic in standard form : ax² + bx + c : a ≠ 0

Then the x- coordinate of the vertex is

$x_{vertex}$ = - $\frac{b}{2a}$

x² - 4x - 5 ← is in standard form

with a = 1, b = - 4, thus

$x_{vertex}$ = - $\frac{-4}{2}$ = 2

Substitute this value into the quadratic for corresponding value of y

(2)² - 4(2) - 5 = 4 - 8 - 5 = - 9

vertex = (2, - 9 )

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3 years ago

Write an equation (7,-4) and has a slope of m =-6

Ann [662]

Answer:

Step-by-step explanation:

y + 4 = -6(x - 7)

y + 4 = -6x + 42

y = -6x + 38

4 0

3 years ago

Please round to the nearest tenth if possible.

Butoxors [25]

$\bf \cfrac{64~\underline{mi}}{\underline{hr}}\cdot \cfrac{\underline{hr}}{60~sec}\cdot \cfrac{5200~ft}{\underline{mi}}\implies \cfrac{64\cdot 5200~ft}{60~sec}\implies \cfrac{16640~ft}{3~sec}
\\\\\\
\approx 5546.67\frac{ft}{sec}\\\\
-------------------------------\\\\
\cfrac{6000~\underline{lbs}}{\underline{day}}\cdot \cfrac{ton}{2000~\underline{lbs}}\cdot \cfrac{7~\underline{day}}{week}\implies \cfrac{6000\cdot 7~ton}{2000~week}\implies 21.00\frac{ton}{week}$

$\bf -------------------------------\\\\
\cfrac{2~\underline{lbs}}{\underline{week}}\cdot \cfrac{16~oz}{\underline{lbs}}\cdot \cfrac{\underline{week}}{7~day}\implies \cfrac{2\cdot 16~oz}{7~day}\implies \cfrac{32~oz}{7~day}\approx 4.57\frac{oz}{day}$

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4 years ago

Are the population means different? yes or no explain

Dima020 [189]

Answer:

The comparison of two population means is very common. A difference between the two samples depends on both the means and the standard deviations. Very different means can occur by chance if there is great variation among the individual samples.

Step-by-step explanation:

This answer involves both Yes and No

5 0

3 years ago

suppose linda had 2/3 of a yard of fabric and told Sandra that she used 3/4 of a yard. Sandra says this is not possible. Do you

zepelin [54]

I do not agree because 3/4 is greater than 2/3 so you can not do 3/4-2/3

7 0

3 years ago