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3 years ago

12

The top of a ladder rests at a height of 15 feet against the side of a house. If the base of the ladder is 6 feet from the house

, what is the length of the ladder? Round to the nearest foot.
Please help

2 answers:

Ksju [112]3 years ago

6 0

90
15 x 6 = 90
You need to multiply

cupoosta [38]3 years ago

4 0

Well I would use that and put in a equation

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Mashutka [201]

Answer:

Step-by-step explanation:

We are told that n = 3m + 6. Substitutte 3m + 6 for n in the second equation, obtaining:

(3m + 6) - 2m = 2, or 3m + 6 - 2m = 2.

Combining like terms yields

m = -4.

Knowing that m = -4 allows us to calculate n. Use the first equation, n = 3m + 6, for this purpose: n = 3(2) + 6 = 12.

Thus, the solution is (2, 12).

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2.) 70.0% * 50 = 35.0

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3 years ago

Four less than the sum of a number and 20 is 16. What is the number

Allushta [10]

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2 years ago

In each part that follows, you are given an equation of a line and a point. Find the equation of the line through the given poi

Semmy [17]

Answer:

a) $y=-\frac{1}{9}x$

b) $y-2=-\frac{1}{3} (x-1)$

Step-by-step explanation:

We can write the equation of a line in 3 different forms including slope intercept, point-slope, and standard depending on the information we have. We have a point given and a slope from the equation. We will chose point-slope since we have a point and can find the slope.

Point slope: $y-y_1=m(x-x_1)$

a) $m\neq 9$ in our new equation because it is perpendicular to it. This means we will need to change it into its negative reciprocal which is $m=-\frac{1}{9}$ .

We will substitute $m=-\frac{1}{9}$ and $x_1=0\\y_1=0$ .

$y-0=-\frac{1}{9} (x-0)$

This simplifies to:

$y=-\frac{1}{9}x$

b) The equation y=3x+4 follows y=mx+b. For the perpendicular line, $m\neq 3$ . We will need to change it into its negative reciprocal which is $m=-\frac{1}{3}$ .

We will substitute $m=-\frac{1}{3}$ and $x_1=1\\y_1=2$ .

$y-2=-\frac{1}{3} (x-1)$

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2 years ago

Which are the x and y intercepts for the given equation, ( 4x = y + 8 )

Serga [27]

x intercepts means y =0

y intercepts means x =0

x intercepts =

0 = y+8

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2 years ago