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Nady [450]
3 years ago
6

Which of the following is the standard form of the equation 5x2 - 20x = 15?

Mathematics
1 answer:
Finger [1]3 years ago
5 0

x= +7 or x=2-7 let me know if you need an explanation <3
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1.3.12
kondaur [170]

Answer:

<h3><em>(12, -6)</em></h3>

Step-by-step explanation:

The formula for calculating the midpoint of two coordinates is expressed as shown;

M(X, Y) = [(x1+x2)/2,  (y1+y2)/2]

Given the midpoint of ST to be ((6, -2) and one endpoint T is (0,2), according to expression above;

X = (x1+x2)/2

Y = (y1+y2)/2

From the coordinates, X = 6, Y = -2, x1 = 0 and y1 = 2, to get x2 and y2;

X = (x1+x2)/2

6 =  (0+x2)/2

cross multiply

12 = 0+x2

x2 = 12-0

x2 = 12

For 2;

Y = (y1+y2)/2

-2 =  (2+y2)/2

cross multiply

-4 = 2+y2

y2 = -4-2

y2 = -6

<em>Hence the other endpoint S(x2, y2) is (12, -6)</em>

<em></em>

3 0
3 years ago
Help me plsss<br><br> And show identity. Thank you:)
zhuklara [117]

Answer:

see the formula in book

Step-by-step explanation:

change the first 2 brackets into cos sin like that

then after,change both into another formula

sin theta plus cos theta will come ans

4 0
3 years ago
Read 2 more answers
How do you convert units in length?
Vlada [557]
Just look it up in the internet i think it will tell you
6 0
3 years ago
Give an example from everyday life of an angle that measures 90 degrees
trasher [3.6K]
In the room where you're sitting right now, the angle on the floor
where the bottoms of two walls come together is 90 degrees.
6 0
4 years ago
Read 2 more answers
I dont understand how to explain this. ​
podryga [215]

Answer:

Angle F is 50° because their side lengths are different but the angle measurements did not change. All triangles add up to 180 degrees and a right angle is 90 and it gives you the other angle measurement. So you would do 40 plus 90 which would get you 130. To find the last angle you would do 180 minus 130 which is 50. Angle F is 50 degrees.  

Step-by-step explanation:

this is what i would say

6 0
3 years ago
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