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Otrada [13]
3 years ago
7

If roots of a quadratic equation are real and equal, then which of the

Mathematics
1 answer:
ycow [4]3 years ago
4 0

Answer: where are the options??

Step-by-step explanation:

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Equation of the line contains the points (-3,2) and (5,-5)
makkiz [27]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

We have the following points through which the line passes:

(x_ {1}, y_ {1}): (- 3,2)\\(x_ {2}, y_ {2}) :( 5, -5)

So the slope is:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {-5-2} {5 - (- 3)} = \frac {-7} {5 + 3} = - \frac {7} {8}

Thus, the equation of the line is of the form:

y = - \frac {7} {8} x + b

We substitute one of the points and find "b":

2 = - \frac {7} {8} (- 3) + b\\2 = \frac {21} {8} + b\\b = 2- \frac {21} {8}\\b = \frac {16-21} {8}\\b = - \frac {5} {8}

Finally, the equation is:

y = - \frac {7} {8} x- \frac {5} {8}

Answer:

y = - \frac {7} {8} x- \frac {5} {8}

6 0
3 years ago
An airplane moves at a constant speed of 120 miles per hour for 3 hours. How far does it
lesya692 [45]

Answer:

Someone calculated his or her average speed to 7.46 Miles per hour (mph) This calculation will help you calculate your average speed when you have covered a certain distance over a certain time.

Step-by-step explanation:

The re

sults your produce from the speed calculator input will come out in a variety of forms You can also find a report on your speed in terms of kilometres per hour, meters per minute and metres per second. There is also a report on the time it takes you to travel certain distances. This report shows you min:sec per kilometre, seconds per 100 .

6 0
3 years ago
I will give brainliest. I need help ASAP.
Tamiku [17]

Answer:

\I got not answer cause im da BUDDHA

But gimme brainliest squekky plssss

4 0
3 years ago
Convert 35 mi/h to km/h
notsponge [240]
<span>Convert 35 mi/h to km/h

</span>35  \dfrac{mi}{h}\to  \dfrac{km}{h}\qquad \qquad 1 mi= 1,60934 \\  \\  \\ 35  \dfrac{mi}{h}* \dfrac{1,60934\ km}{1\ mi}= \boxed{  56,3269\dfrac{km}{h} }<span>
</span>
3 0
3 years ago
Using the GCF factor the given expression: 21xy + 14y
MArishka [77]

Answer:

7y(3x+2)

you take out the 7y from both sides

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3 years ago
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