Answer:
29. (5,0) and (-7/2,0)
30. (-1,0) and (5/7,0)
Step-by-step explanation:
29. y=2x² - 3x - 35
y = (x-5)(2x+7)
y is 0 at x = 5 and -(7/2)
31: y=-7x² - 2x + 5
y = -(x+1)(7x-5)
y is 0 at -1 and 5/7
See the attached graph.
Someone please help me!
1 answer:
Answer:
<em>Image attached</em>
Step-by-step explanation:
<u>Elements in a Circle</u>
Before drawing the 8 required elements in the circle, let's recall some basic definitions:
- Chord: A straight line whose extremes both lie on the circle
- Tangent: A straight line that touches the circle in one point and is perpendicular to the radius at the point of tangency
- Radius: It's a straight line from the center of a circle to its circumference
- Secant: It's a line that that intersects the circle in exactly two points
- Point of tangency: Is the point where the tangent line touches the circumference
- Diameter: It's a straight line from one point to the circle going through the center.
- Minor arc: Is an arc of a circle that measures less than or equal to 180 degrees
- Mayor arc: Is an arc of a circle that measures more than 180 degrees
Please refer to the image below to see all the elements described above
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the question in English
Draw a rectangle having the base congruent to the nine sevenths of the height.
Let
b-------> the base of rectangle
h-------> the height of rectangle
we know that
b=(9/7)*h-------> this is the equation to obtain the base of the rectangle for a given height
examples
1) for h=7 units
b=(9/7)*7-------->b=9 units
the dimensions are 9 units x 7 units------> see the attached figure
2) for h=5 units
b=(9/7)*5-------->b=(45/7) units
the dimensions are (45/7) units x 5 units
The answer in Italian
Facciamo
b-------> base del rettangolo
h-------> altezza del rettangolo
Noi sappiamo che
b=(9/7)*h-------> questa è l'equazione per ottenere la base del rettangolo per una determinata altezza
esempi
1) per h=7 units
b=(9/7)*7-------->b=9 units
le dimensioni sono 9 units x 7 units----->
vedere la figura allegata
2) per h=5 units
b=(9/7)*5-------->b=(45/7) units
le dimensioni sono (45/7) units x 5 units
