Answer:
1.125 h = 1h 7.5 min = 1 h 7 min 30 sec
Step-by-step explanation:
John makes 1/1.5 work per h.
His partner makes 1/4.5 work per h.
Together they make (1/1.5 + 1/4.5) = (3/4.5 + 1/4.5) = 4/4.5 work per h.
They will work
1 : 4/4.5 = 4.5/4 = 1.125 h = 1 h + 0.125 h = 1h + 0.125h*60min/1h =
=1h 7.5 min = 1 h 7 min 30 sec
The length of the ladder that makes an angle of 75 degrees and lies against the wall of a house that's 23 feet tall is <em>approximately </em>25.88 feet.
The ladder forms a right triangle as it lies against the wall as shown in the image below.
<em><u>Thus:</u></em>
x = length of the ladder (hypothenuse)
Reference angle
25 ft = Opposite
Apply SOH:
<em>Thus</em>,
Therefore, the length of the ladder that makes an angle of 75 degrees and lies against the wall of a house that's 23 feet tall is <em>approximately </em>25.88 feet.
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brainly.com/question/23973168
Answer:
Rise in average daily temperature from January to March=51°F
Step-by-step explanation:
Given:
Average daily temperature in Denton for the month of January = -8°F
Average daily temperature in Denton for the month of January = 43°F
Rise in average daily temperature from January to March= Difference in average temperatures =
[When we subtract a negative number from a positive number, they get added up.]