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3 years ago

Which of the following is the equation for the line of symmetry in this figure? Help please

Mathematics

1 answer:

klasskru [66]3 years ago

4 0

Answer:

Y=-2

Step-by-step explanation:

-2y is right in between the figure.

Hope this helps!

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). At a concert, people's hands were stamped as they walked in. To estimate the attendance, the staff randomly

vampirchik [111]

Answer:

7500 people

Step-by-step explanation:

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3 years ago

How can 5 people share 4 cookies equally?

Volgvan

By giving each person a fraction of a cookie.

4÷5 = 0.80

If ya give 'em 0.80 th of a cookie, it'll be equal!

Thank you ;)

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3 years ago

Help help Help Help Help

aev [14]

Answer:

4. the distance it travled

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3 years ago

Read 2 more answers

A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the followin

maks197457 [2]

Answer:

(a) $\sum x_i=56.68$ and $\sum x_i^2=197.46$

(b) The sample variance is $s^2=0.530$ and the sample standard deviation is $s=0.728$

Step-by-step explanation:

(a)

The sum of these 17 sample observations is

$\sum x_i=2.79\:+2.57+\:2.73\:+3.75\:+2.27+\:2.75+\:4.00+\:4.22+\:3.88+\:4.35+\:3.41+\:4.57+\:2.38+\:3.73\:+2.75+\:3.47+\:3.06\\\\\sum x_i=56.68$

and the sum of their squares is

$\sum x_i^2=2.79^2\:+2.57^2+\:2.73^2\:+3.75^2\:+2.27^2+\:2.75^2+\:4.00^2+\:4.22^2+\:3.88^2+\:4.35^2+\:3.41^2+\:4.57^2+\:2.38^2+\:3.73^2\:+2.75^2+\:3.47^2+\:3.06^2\\\\\sum x_i^2=197.46$

(b)

The sample variance, denoted by $s^2$ , is given by

$s^2=\frac{S_{xx}}{n-1}$

where $S_{xx} =\sum x_i^2-\frac{(\sum x_i)^2}{n}$

Applying the above formula we get that

$S_{xx}=197.46-\frac{(56.68)^2}{17}\\\\S_{xx} =8.482$

$s^2=\frac{8.482}{17-1}=0.530$

The sample standard deviation, denoted by s, is the (positive) square root of the variance:

$s=\sqrt{s^2}$

Applying the above formula we get that

$s=\sqrt{0.530}=0.728$

3 0

3 years ago

How to set up inequalities

melamori03 [73]

X=any number

x is( greater than sign) (and then a line at the bottom of the greater or less than sign) x

it would be like this
x is greater than or equal to x
or
x is less than or equal to x

6 0

4 years ago