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Masteriza [31]
4 years ago
13

The equation of line CD is (y-3) = - 2 (x-4). What is the slope of a line perpendicular to line CD?

Mathematics
2 answers:
shutvik [7]4 years ago
6 0
So the equation is in point slope form y-y1=m(x-x1) m=the slope so the slope of that equation is -2 the way how you would find the slop of the line that is perpendicular is you would take the negative reciprocal so that would be 1/2
shusha [124]4 years ago
5 0
Y-y1=m(x-x1)
slope is m

given
y-3=-2(x-4)
slope=-2

perpendicular lines have slopesthat multiply to -1

-2 times ?=-1
divide by -2
?=1/2

slope is 1/2
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A kite is flying 12 ft off the ground. Its line is pulled taut and casts an 8 -ft shadow. Find the length of the line. If necess
LenKa [72]
Answer

14.4 ft~

Step-by-step explanation

A kite is flying 12 feet off the ground, therefore the height is 12 (assuming the line is tied to the ground if a person is holding the line then the height would be less)

Assuming the sun is positioned in such a way that the shadow represents a horizontal distance. Horizontal distance of shadow = 8

Use Pythagoras Theorem

Where a^2 + b^2 = c^2

8^2 + 12^2 = 208

Square root 208 = 14.4~

~ Hoodini, here to help :)
6 0
3 years ago
How can i solve 2×2+16x+y+34=0
IRISSAK [1]
PEMDAS
multiply 2x2=4 and simplify the equation by looking for like terms to combine.

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4 and 34 are like terms so add them. 
the simplified expression is 16x+y+38




6 0
3 years ago
1. WILL GIVE BRAINLIST TO BEST ANSWER
Varvara68 [4.7K]

Answer:

90/100

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4 0
3 years ago
Can you help me evaluate the expression: 2*(3+1)+2
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Will someone please help me here
grandymaker [24]

\bf a) \\\\\\ \begin{array}{ccll} miles&minutes\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 11&74\\ 1&x \end{array}\implies \cfrac{11}{1}=\cfrac{74}{x}\implies x=\cfrac{1\cdot 74}{11} \\\\\\ b) \\\\\\ \begin{array}{ccll} lbs&\$\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 20&8\\ 1&x \end{array}\implies \cfrac{20}{1}=\cfrac{8}{x}\implies x=\cfrac{1\cdot 8}{20}

7 0
3 years ago
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