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Natali [406]
3 years ago
13

Tom wants to reach a second floor window on a house that is 20 feet above ground. If he must put the ladder at a 70° angle to th

e ground, how long must the ladder be?
Mathematics
1 answer:
vovangra [49]3 years ago
5 0
Let the ladder length be L, then

sin 70 = 20/L, L = 20/sin70 = 21.3 feet
the length of ladder is 21.3 feet
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50 POINTS + BRAINLIEST
Vedmedyk [2.9K]
X + 2y = 6
2y = -x + 6
  y = -1/2 x + 3 so slope = -1/2

parallel lines  has same slope = -1/2
perpendicular lines slope is opposite and reciprocal so slope = 2  
if slope not equal either -1/2 or 2 then neither.

y = -1/2 x - 5 ....m= - 1/2....  parallel

-2x + y = -4
          y = 2x - 4...m = 2 ....perpendicular

-x + 2y = 2
2y = x + 2
y = 1/2 x + 1 ...m = 1/2 ...neither

x + 2y = -2
2y = -x - 2
 y = -1/2 x - 1 ...m = -1/2 .....parallel

hope it helps
3 0
3 years ago
Read 2 more answers
3/4 yard long and 1/2 yard tall what is the area of the poster frame
zmey [24]
The area is 3/8 yd².

Area = length x width

Given:
length = 3/4 yard
width = 1/2 yard

Area = 3/4 yd * 1/2 yd
Area = 3*1/4*2
Area = 3/8 yd²

In multiplying fractions, multiply the numerators, then, multiply the denominators. lastly, simplify the fraction. 3/8 yd² is already in its simplest form.
3 0
3 years ago
Read 2 more answers
When the hour hand moves from 3 pm to 6 pm, through how many degrees does it move?
taurus [48]
I think it might be 90 degrees
6 0
3 years ago
43ones x3 tens=how many tens
KATRIN_1 [288]
There are 129 tens because 43x30 (3 tens) is 1,290
7 0
3 years ago
What is the length of the missing leg? If necessary, round to the nearest tenth.
Marrrta [24]

<u>Answer:</u>

  • The length of the hypotenuse is 33 yards.

<u>Step-by-step explanation:</u>

<em>We can solve for 'a' using Pythagoras theorem. Let's solve it.</em>

  • 65² = b² + 56²
  • => 4225 = b² + 3136
  • => b² = 1089
  • => b = 33

Hence, the length of the hypotenuse is 33 yards.

Hoped this helped.

BrainiacUser1357

7 0
2 years ago
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