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Flauer [41]
3 years ago
15

A 13-mater fire-truck ladder is leaning against a wall. Find the distance the ladder goes up the wall if it makes an angle of el

evation of 43 degrees.
Mathematics
1 answer:
Vanyuwa [196]3 years ago
4 0
So to complete this you need to choose either sin cos or tan.

You know the hypotenuse and Ф but need to find the opposite.

So you would choose to use sin.

Opposite = sinФ * hypotenuse:
Opposite = sin43 * 13 = 8.9.

It would go 8.9 meters up the wall.

<em><u /></em><u />Hope this helps.
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Please please please help me with this answer
Rasek [7]

x = number of packages he bought

y = number of popsicles in each package

Here are the two equations:

xy = 54

x = 3 + y

Using the substitution method, you can solve them to find x and y.

(3 + y)y = 54,

3y + y^2 = 54

y^2 + 3y - 54 = 0

Solve the quadriatic equation:

(y +9)(y - 6) = 0

y = -9, 6.

Plug y into: xy = 54

x(-9) = 54, x = -6.

x(6) = 54, x = 9.

So he bought 9 packages of popsicles, bc you can't bye -6 packages.

3 0
3 years ago
Find the greatest commen factor of 96 and 48
kirza4 [7]
48 is the greatest common factor
4 0
3 years ago
Read 2 more answers
Por que la estadística es una ciencia ???<br><br>​
Volgvan

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Hope that helped!

3 0
2 years ago
Solve the system by substitution: <br> 3x + 2y = 26<br> Y=x + 3
Orlov [11]

Answer:

x = 4

Step-by-step explanation:

3x + 2y = 26

y = x + 3

Plug in the equation for y

3x + 2(x + 3) = 26

Multiply the 2 with what is in the parantheses

3x + 2x + 6 = 26

Combine like terms and solve for x

5x + 6 = 26

5x = 20

x = 4

5 0
3 years ago
Read 2 more answers
Find the value of a and b when x=12
garri49 [273]
A= 360
B= 2(12)²(7)/120= 2016/120=16.8
5 0
3 years ago
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