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3 years ago

11

the dot plot shows the number of text messages mr.garcia sent each day so far this month. which statement best describes the sha

pe of the graph?

1 answer:

Gelneren [198K]3 years ago

8 0

Answer:

where is the dot plot also describe if it increases or decreases

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What is the slope of a line parallel to y=2x+3?

andrey2020 [161]

Answer:

2

Step-by-step explanation:

2 is the slope of y=2x+3 and any line parralel would have the same slope. therefore the parallel slope would be 2

5 0

3 years ago

Read 2 more answers

34.7% of city employees ride the bus to work. Last year, 5.2% of city employees rode the bus to work. What is the relative chang

DaniilM [7]

Answer:

$5.67\%$

Step-by-step explanation:

The relative change is defined by the following equation:

$Relative\hspace{3}change=\frac{x-x_r_e_f_e_r_e_n_c_e}{x_r_e_f_e_r_e_n_c_e}$ (1)

Where:

$x=Value\hspace{3}of\hspace{3}indicator\hspace{3}in\hspace{3}period\hspace{3}2$

$x_r_e_f_e_r_e_n_c_e=Value\hspace{3}of\hspace{3}indicator\hspace{3}in\hspace{3}period\hspace{3}1$

With this in mind, let's replace the values in the equation (1):

$Relative\hspace{3}change=\frac{34.7-5.2}{5.2}=\frac{29.5}{5.2}=5.673076923\approx5.67\%$

4 0

3 years ago

Managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line operation, . T

Vinil7 [7]

Answer:

The appropriate answer is "144".

Step-by-step explanation:

Given:

Population standard deviation,

$\sigma=10.4$

Margin of error,

$E=1.7$

$CL=95$ %

$CL=1-\alpha$

Or,

$\alpha=1-CL$

$=1-0.95$

$=0.05$

Now,

Critical value,

= $Z_{\frac{\alpha}{2} }$

= $Z_{\frac{0.05}{2} }$

= $1.96$

The minimum sample size will be:

⇒ $n=\frac{Z^2_{\frac{\alpha}{2} }(\sigma)^2}{E^2}$

By putting the values, we get

$=\frac{(1.96)^2(10.4)^2}{(1.7)^2}$

$=\frac{415.5074}{2.89}$

$=143.774$

or,

$=144$

3 0

3 years ago

A rectangle’s width is 2 meters shorter than its length, l. Its area is 168 square meters. Which equation can be used to find th

bija089 [108]

Answer:

l(l - 2) = 168

Step-by-step explanation:

Let w = width

Let l = length

Let A = area

w = l - 2

A = l * w

also, A = 168

equating the two values of A

l * w = 168

l * (l - 2) = 168

l^2 - 2l = 168

l(l - 2) = 168

7 0

3 years ago

Read 2 more answers

The pie chart shows the flavours of ice cream sold by a shop in one

Vadim26 [7]

Given:

The pie chart shows the flavours of ice cream sold by a shop in one day.

There were a total of 270 ice creams sold.

To find:

The number of vanilla flavoured ice creams sold.

Solution:

We know that the complete central angle is 360 degrees.

From the given pie chart, it is clear that the central angle of the vanilla flavoured ice creams sold is 60 degrees.

Total ice creams sold = 270

Now, the number of vanilla flavoured ice creams sold is

$n=\dfrac{\text{Central angle of vanilla}}{\text{Complete central angle}}\times \text{Total ice creams sold}$

$n=\dfrac{60^\circ}}{360^\circ}}\times 270$

$n=\dfrac{1}{6}\times 270$

$n=45$

Therefore, the number of vanilla flavoured ice creams sold is 45.

4 0

3 years ago