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andriy [413]
3 years ago
12

I NEED HELP ... SOMEONE PLEASE HELP ME!!!

Mathematics
1 answer:
nordsb [41]3 years ago
4 0
The graph of a quadratic function is called a parabola.
There are 3 forms of quadratic equations.
If A is positive, the parabola opens up or to the right.
If A is negative, it opens downwards or to the left.
All quadratic equations have a vertex, which is the turning point of the graph.
Quadratic graphs are symmetrical across the y-axis, which runs through the axis of symmetry. Formula: x= -b/2a
A quadratic function crosses the y-axis when x=0
The y-intercept always has an x-value of 0.
For a parabola, the y-intercept will be the point(don’t know this one sorry!)
A quadratic function crosses or touches the x-axis once, twice, or never.

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Maria is making a stained glass window in the form of a kite. the width of the window must be 15 in., and she only has enough st
NeTakaya
Kite Area = (Diagonal 1 * Diagonal 2) / 2
Diagonal 2 = 2 * Kite Area / Diagonal 1
Diagonal 2 =2 * 60 / 15
Diagonal 2 = 120 / 15
Height = 8 inches


4 0
3 years ago
The diameter of a circle is two times its radius. Which
atroni [7]
I can’t type it out but the equation is Pi(radius)^2
3 0
3 years ago
Solve for x<br>A:10 B:14.5 C:20 D:6÷3​
den301095 [7]

By applying Cathetus theorem, the value of x is equal to 10 units.

<h3>How to determine the value of x?</h3>

In order to determine the value of x, we would apply Cathetus theorem (leg rule), which states that each leg of a right-angled triangle is the geometric mean that's directly proportional between the hypotenuse and the part of the hypotenuse that's directly below the leg.

In this context, we have:

x² = m × a

x² = (21 + 4) × 4

x² = 25 × 4

x² = 100

x = √100

x = 10 units.

Read more on Cathetus theorem here: brainly.com/question/11357448

#SPJ1

7 0
2 years ago
What is the slope of the line that contains (-3, 4) and (7, 5)
Zanzabum
Apply the slope formula as follows:

         5-4            1
m = --------- = ---------
        7-(-3)        10
4 0
3 years ago
To assess the effectiveness of a kindergarten-readiness program, 15 children from a random sample were each given a diagnostic a
kobusy [5.1K]

Answer:

D) We are 95 percent confident that the mean difference in scores for all children in the program is between 20.1 points and 23.9 points.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

95 percent confidence interval (20.1,23.9)

We are 95% sure that the population mean(that is, the mean for all children in the program) is in this interval. So the correct answer is given by option D.

8 0
3 years ago
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