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3 years ago

HELPPPPPPPPPPP

Mathematics

1 answer:

liubo4ka [24]3 years ago

3 0

(A) Find the approximate length of the plank. Round to the nearest tenth of a foot.
Given that the distance of the ground is 3ft.
In order to get the length of the plank,
we can use the this one.

cos 49 = ground / plank
cos 49 = 3 / plank
plank = cos 49 / 3
plank = 0.10 ft

(b) Find the height above the ground where the plank touches the wall. Round to the nearest tenth of a foot.

The remaining angle is equal to
angle = 180 - (90+49)
angle = 41

Finding the height.
tan 41 = height / ground
tan 41 = height / 3
height = tan 41 / 3
height = 0.05 ft.

(A) 0.10 feet
(B) 0.05 feet

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2 years ago

700 - d= 665. please help me

sleet_krkn [62]

Solutions

700 - d = 665

To solve the problem lets take out the letter d.
⇒ Now we have 700 - 665

700 - 665 = 35
The letter d is 35

Check your work

700 - 35 = 665

the answer is correct

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2 years ago

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Answer:

3.162 units

Step-by-step explanation:

First identify the points that undergo transformation

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Applying the formula

$d=\sqrt{(3-2)^2+(4-1)^2} \\\\\\d=\sqrt{1^2+3^2} \\\\\\d=\sqrt{1+9} \\\\\\d=\sqrt{10} \\\\\\d=3.162$

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3 years ago

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