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Mashcka [7]
3 years ago
11

The line containes the point (-8,11) and has a y intercept of 5

Mathematics
1 answer:
kicyunya [14]3 years ago
5 0

Step-by-step explanation:

Since, line contains the point (-8, 11) and has a y intercept of 5.

Therefore, line passes through the points (-8, 11) and (0, 5)

Equation of line in two point form is given as:

\frac{y-y_1 }{y_1 - y_2 }  =  \frac{x-x_1 }{x_1 - x_2 }  \\  \\  \therefore \:  \frac{y-11 }{11 - 5 }  =  \frac{x-( - 11) }{ - 11 - 0 }  \\  \\ \therefore \:  \frac{y-11 }{6 }  =  \frac{x +  11 }{ - 11 }  \\  \\ \therefore \:   - 11(y-11 )=6 (x +  11) \\  \\  \therefore \:   - 11y + 121=6 x +  66 \\  \\  \therefore \:   0=6 x + 11y +  66 - 121 \\  \\    \red{ \boxed{\therefore \:  6 x + 11y  - 55 = 0}}

Hence, 6x + 11y - 55 = 0 is the required equation of line.

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A tree casts an 8-foot shadow on the ground. The length from the tip of the shadow to the top of the tree is 17 feet. What is th
dimulka [17.4K]

Answer:

Height of tree = 15 ft

Step-by-step explanation:

Given:

Length of shadow (Base) = 8 ft

Length from the tip to top of the tree (Hypotenues) = 17 ft

Find:

Height of tree = ?

Computation:

Using Pythagoras theorem:

Height\ of\ tree = \sqrt{Hypotenues^2 - base^2} \\\\Height\ of\ tree = \sqrt{17^2 - 8^2} \\\\Height\ of\ tree = \sqrt{289-64}\\\\Height\ of\ tree = \sqrt{225}\\\\ Height\ of\ tree =15

Height of tree = 15 ft

8 0
3 years ago
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Answer: 9

Step-by-step explanation:

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6 0
3 years ago
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4 0
3 years ago
Which expression has a value of 24 when x=4 and y=2?
wolverine [178]
C) will have value of 24 

4 0
3 years ago
Read 2 more answers
What is an equation of a line in point slope form that passes through the points (7,-8) and (-4,6)?
maw [93]

y=kx+b

for (7,-8): -8=7k+b. (function 1)

for (-4,6): 6=-4k+b (function 2)

Use function 2 - function 1

we get: 14=-11k

k=-14/11------>slope is -14/11

Now we know that first two options are wrong since they have the wrong slope for the function.

Plus -14/11 back to function 1/ or 2. Both are correct and can give you the answer. In this case I would plug it back to function 2.

6=14*4/11+b

b=66/11-56/11

b=10/11

We get y=-14/11x+10/11

subtract both side by 6.

y-6=-14/11x+10/11-66/11

y-6=-14/11x-56/11

y-6=-14/11(x+4)

So C is correct

5 0
3 years ago
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