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larisa [96]
3 years ago
5

Write the slope intercept form of the equation that formed this line when graphed

Mathematics
1 answer:
Ivenika [448]3 years ago
3 0
Y=2x + 3
The slope is 2, because when graphed, it’d be up two over one. And the y-intercept is 3 because the point on the y-axis is (0,3)
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A report states that the mean household income last year for a certain rural county was $46,200 and the median was $54,500. If a
Masja [62]

Answer:

skewed to the left

Step-by-step explanation:

A histogram is used to represent data graphically. the histogram is made up of rectangles whose area is equal to the frequency of the data and whose width is equal to the class interval. the frequency is usually on the vertical axis while the class interval is usually on the horizontal axis.

If the mean is greater than the median, the histogram would be skewed to the right

If the mean is less than the median, the histogram would be skewed to the left.

The mean in this question is $46,200 while the median is $54,500. So, the histogram would be skewed to the left

4 0
3 years ago
The table shows the heights of 40 students in a class.
Studentka2010 [4]

Answer:

Step-by-step explanation:

Hello!

a)

The given information is displayed in a frequency table, since the variable of interest "height of a student" is a continuous quantitative variable the possible values of height are arranged in class intervals.

To calculate the mean for data organized in this type of table you have to use the following formula:

X[bar]= (∑x'fi)/n

Where

x' represents the class mark of each class interval and is calculated as (Upper bond + Lower bond)/2

fi represents the observed frequency for each class

n is the total of observations, you can calculate it as ∑fi

<u>Class marks:</u>

x₁'= (120+124)/2= 122

x₂'= (124+128)/2= 126

x₃'= (128+132)/2= 130

x₄'= (132+136)/2= 134

x₅'= (136+140)/2= 138

Note: all class marks are always within the bonds of its class interval, and their difference is equal to the amplitude of the intervals.

n= 7 + 8 + 13 + 9 + 3= 40

X[bar]= (∑x'fi)/n= [(x₁'*f₁)+(x₂'*f₂)+(x₃'*f₃)+(x₄'*f₄)+(x₅'*f₅)]/n) = [(122*7)+(126*8)+(130*13)+(134*9)+(138*3)]/40= 129.3

The estimated average height is 129.3cm

b)

This average value is estimated because it wasn't calculated using the exact data measured from the 40 students.

The measurements are arranged in class intervals, so you know, for example, that 7 of the students measured sized between 120 and 124 cm (and so on with the rest of the intervals), but you do not know what values those measurements and thus estimated a  mean value within the interval to calculate the mean of the sample.

I hope this helps!

4 0
4 years ago
(Enjoy a naruto aesthetic) Nancy is purchasing a frame for a painting she owns. The painting is 14 inches long. The supplier of
zysi [14]

Answer

the answer is C I hope this helps :))

Step-by-step explanation:

LOVEE naruto by the wayy

8 0
3 years ago
HELP PLEASE‼️‼️ the questions are on the photo
kicyunya [14]
Slope = (y2 - y1) / (x2 - x1)
slope = (5 + 7)/(10 - 4) = 12/6 = 2

point slope form: 
y - y1 = m(x - 1)
in this case:

If you use point (4,-7) then equation will be:
y -(- 7) = 2(x - 4)
y + 7 = 2(x - 4)

If you use point (10,5) then equation will be:
y - 5 = 2(x - 10)

Answer:
B. y - 5 = 2(x - 10)
5 0
4 years ago
How do I do 1/2 divided by -2/5 + -1/4
anastassius [24]

IF -2/5 + -1/4 IS IN PARENTHESES:

skip this part if its not

(1/2) / (-2/5 - 1/4)

(-2/5 - 1/4) is equivalent to (-8/20 - 5/20) = -13/20

substitute -13/20 for (-2/5 - 1/4)

1/2 / -13/20

remember that division is the inverse of multiplication, so if we flip the second fraction, we can change the division sign to multiplication (when doing this, never flip the first fraction, you will not get the right answer)

1/2 * -20/13

simplify -20/2 to get -10

1 * -10/13 = <u>-10/13</u>

IF -2/5 + -1/4 IS NOT IN PARENTHESES:

1/2 / -2/5 +-1/4

PEMDAS : multiplication/division comes before addition / subtraction

1/2 / -2/5 = (apply the flip rule : read the chunk of text above if you don't know what it is) 1/2 * -5/2 = -5/4

subtract 1/4 form -5/4 now

-5/4 - 1/4 = -6/4

simplify

= <u>-3/2</u>

4 0
3 years ago
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