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Anna11 [10]
3 years ago
11

I’ll give u brainliest please help asap

Mathematics
2 answers:
Alchen [17]3 years ago
8 0

Answer:

c, 14

Step-by-step explanation:

pishuonlain [190]3 years ago
5 0

Answer:

the ansewr is b

Step-by-step explanation:

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Calculate pt3 such that a line from pt1 to pt3 is perpendicular to the line from pt1 to pt2, and the distance between pt1 and pt
Leni [432]
Let the point_1 = p₁ = (1,4)
and      point_2 = p₂ = (-2,1)
and      Point_3 = p₃ = (x,y)

The line from point_1 to point_2 is L₁ and has slope = m₁
The line from point_1 to point_3 is L₂ and has slope = m₂
m₁ = Δy/Δx = (1-4)/(-2-1) = 1
m₂ = Δy/Δx = (y-4)/(x-1)
L₁⊥L₂ ⇒⇒⇒⇒ m₁ * m₂ = -1
∴ (y-4)/(x-1) = -1 ⇒⇒⇒ (y-4)= -(x-1)
(y-4) = (1-x) ⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒ equation (1)

The distance from point_1 to point_2 is d₁
The distance from point_1 to point_3 is d₂
d = \sqrt{Δx^2+Δy^2}
d₁ = \sqrt{(-2-1)^2+(1-4)^2}
d₂ = \sqrt{(x-1)^2+(y-4)^2}
d₁ = d₂
∴ \sqrt{(-2-1)^2+(1-4)^2} = \sqrt{(x-1)^2+(y-4)^2} ⇒⇒ eliminating the root
∴(-2-1)²+(1-4)² = (x-1)²+(y-4)²
 (x-1)²+(y-4)² = 18
from equatoin (1)  y-4 = 1-x
∴(x-1)²+(1-x)² = 18            ⇒⇒⇒⇒⇒ note: (1-x)² = (x-1)²
2 (x-1)² = 18
(x-1)² = 9
x-1 = \pm \sqrt{9} = \pm 3
∴ x = 4 or x = -2
∴ y = 1 or y = 7

Point_3 = (4,1)  or  (-2,7)












8 0
3 years ago
Why might a student be proud if he or she memorized a famous speech?<br>​
quester [9]

A student might be proud if he or she memorized a famous speech because it might mean a lot to them in a way. Memorizing a famous speech can have an impact on you and your life. That’s why there are famous speeches for a reason.

Hoped I help, plz mark as brainliest. If you can. :)

4 0
3 years ago
Standard Form:
Maksim231197 [3]

Answer:

y = (1/2)x - 3

Step-by-step explanation:

slope-intercept form: y =mx + b

m - slope,

b - y - intercept.

m = 1/2

b= - 3

y = (1/2)x - 3

3 0
3 years ago
Find the slope of the line containing the two points (1,-1) and (-5,-3)
Strike441 [17]
Slope =(-3 + 1)/(-5 - 1) = -2/-6 = 1/3

answer
1/3
4 0
3 years ago
In Jeremiah class
Irina18 [472]
Answer:

2/5 = 4/10

4/10 = 40%

Explanation:

2/5 is a simplified fraction, and one of the bigger fractions it’s made by 4/10. Do you can use 4/10, but can also use 8/20, 20/50, 40/100, so on. Since we know that any fraction that of ten can be turned into a percentage easily (2/10=20%, 5/10=50%,9/10=%90), then 4/10 is equal to 40%. So 40% of the people in Jeremiah’s class are boys.
6 0
2 years ago
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