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zlopas [31]
2 years ago
5

Next, the team wants to explore how it can change the steepness of the curved pit. Identify how the graph of each equation compa

res with the graph of the parent quadratic equation, y=x^2. Drag the equations to the correct location on the chart. Not all equations will be used
Mathematics
1 answer:
Harlamova29_29 [7]2 years ago
8 0

y = \frac 14x^2 is less steep than the parent quadratic equation, while y = 2x^2 is steeper than the parent quadratic equation

<h3>How to determine the equations</h3>

The parent equation of a quadratic equation is represented as:

y = x^2

For a function to be steeper or less steep than the parent function must be stretched or compressed by a factor k

So, we have:

y = (kx)^2

If k is greater than 1, then the function would be steeper; else, the function would be less steep.

Assume k = 2, we have:

y = (2x)^2

y = 2x^2

Assume k = 1/2, we have:

y = (\frac 12x)^2

y = \frac 14x^2

Hence, y = \frac 14x^2 is less steep than the parent quadratic equation, while y = 2x^2 is steeper than the parent quadratic equation

Read more about quadratic equations at:

brainly.com/question/11631534

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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
Solve for h.<br><br> 2 &lt; -19 - 7h
Sunny_sXe [5.5K]

Answer:

h < -3

Step-by-step explanation:

2 < -19 -7h

or 19 + 2 < -7h

or 21 < -7h

or 21/(-7) > h [flip the sign when dividing with negative Number ]

∴ -3 > h ( h < -3 )

hoping that this will help you

Please Mark as Brainliest...

5 0
2 years ago
Read 2 more answers
Can someone also help with this
Artist 52 [7]

Answer:

90, 180, and 270

Step-by-step explanation:

I'm pretty

5 0
3 years ago
A circle is shown. 4 radii are drawn. Chords are drawn to connect the radii points on the circle to form 2 triangles. The triang
weqwewe [10]

Answer:

i dont kn

Step-by-step explanation:

6 0
3 years ago
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How do I solve this?
SashulF [63]

Answer: A symbol

Step-by-step explanation: Nothing in that picture gives a value for x

7 0
3 years ago
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