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german
3 years ago
14

Anybody know the answer to 4 and 5 I really could use some help

Mathematics
1 answer:
Elena-2011 [213]3 years ago
4 0
The first one you are looking for perimeter.  So, 2+2+2+2 = 8

The second one is area = b x h so you get 600
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Two ladders rest against a wall at the same angles. The first ladder is 13 feet long, has its base 5 ft away from the wall and t
Degger [83]

Answer:

  2.5 feet

Step-by-step explanation:

Given two ladders resting against a wall at the same angle, and various lengths associated with the first ladder, you want to know how far from the wall is the base of the second ladder.

<h3>Similar triangles</h3>

The wall and the ground form a right angle, so the fact that the ladders make the same angles with the wall and ground means the geometry can be modeled by similar triangles. Similar triangles have proportional sides.

To find the distance of the second ladder from the wall, we can use the proportion ...

  (distance from wall)/(ladder length) = x/(6.5 ft) = (5 ft)/(13 ft)

<h3>Solution</h3>

Multiplying this proportion by 6.5 ft gives ...

  x = (6.5 ft)(5/13) = 2.5 ft

The base of the second ladder is 2.5 feet from the wall.

5 0
2 years ago
If f(x) = x2 + 7, what is the equation for f'(x)?
denis23 [38]

Answer:

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Step-by-step explanation:

\bullet\ (x^2)^{\prime}=2x\\\\\bullet\ (7)^{\prime}=0

\Longrightarrow f^{\prime }\left( x\right)  =\left( x^{2}+7\right)^{\prime }  =(x^2)^{\prime}+(7)^{\prime}=2x

6 0
2 years ago
Drag each expression to its equivalent expression.
serg [7]

Answer:

your answers are going to be

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Step-by-step explanation:

hope it helps have a nice day!!

5 0
3 years ago
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vovangra [49]

Hello,

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the difference of the medians as a multiple of their average interquartile range is 79.5 is average median and 13 average IQR.

5 0
3 years ago
Read 2 more answers
6. the measure of angle A'<br><br><br> Please answer
Neporo4naja [7]

Answer:

Any choices or pictures??

Step-by-step explanation:

5 0
3 years ago
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