Dr. Black is standing 13 feet from a streetlamp. The lamp is making his shadow 9 feet long. He estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 50. To the nearest foot, the streetlamp is about _____.

Answers

Answer 1

Answer: Distance from tip of shadow to lamp post = 13 +9 feet = 22 ft Height of lamp post = x tan 50 = x /22 = 1.192 x = 22 * 1.192 =.26.2 ft. rounded = 26ft

Answer 2

Answer:

Answer:

26 ft height

Step-by-step explanation:

The distance between the streetlamp and the tip of his shadow is 9 + 13 = 22 ft.

A rectangle triangle is formed in which one side is 22 ft long and the other side is the streetlamp height. The angle between the 22 ft side and the hypotenuse is 50°. From tangent definition:

tan(50°) = (streetlamp height)/(22 ft)

tan(50°) * (22 ft) = streetlamp height

26 ft = streetlamp height

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SUpeR eASY QUESTION! will give brainliest

Please, help, this is for my best friend! I will mark Brainliest.

Answers

Answer:

$y = - (3)/(20) x + 900 \n \n y = - (20)/(3) x + 6000$

Step-by-step explanation:

$\n part \: a. \:( food \: expenses) \n to \: solve \: these \: problems \: we \: surmone \n \: the \: following \: laws : \to \nm = ( y_(2) -y_(1) )/(x_(2) - x_(1)) = (815 - 812)/(390 - 410) = - (3)/(20) = - 0.15 \n the \: general \: slope \:i ntercept \: form \: is : \n y = mx + c \n to \: find \: c \: lets\: insert \: any \: two \: pairs \: for \: x \: and \: y \to \n 812 = - (3)/(20) (410) + c \n 16,240 = - 3(410) + 20c \n c = (1747)/(2) \n c = 873.5 \n \n therefore \: y = - (3)/(20) x + 900 \: (i.e \: to \: he \: nearest \: thousand). \n \n \n part \: b. \: (medical \: expenses) \n to \: be \: able \: to \: solve \: these \: problems \: we \: surmone \n \: the \: following \: laws : \to \nm = ( y_(2) -y_(1) )/(x_(2) - x_(1)) = (390 - 410)/(815 - 812) = - (20)/(3) = - 6.667 \n the \: general \: slope \:i ntercept \: form \: is : \n y = mx + c \n lets \: find \: c \: by \: insert \: any \: two \: pairs \: for \: x \: and \: y \to \n 410 = - (20)/(3) (812) + c \n 1230 = - 20(812) + 3c \n c = (17470)/(3) \n c = 5823.3333 \n \n therefore \: y = - (20)/(3) x + 6000 \: (i.e \: to \: he \: nearest \: thousand). \n \n$

Answer:

y= -3/20x+90

y= -20/3x+6000

Step-by-step explanation:

a cash register contains p pennies. write an algebreic expression that represents the total amount of money (in dollars)

Answers

Answer:

The algebraic expression that represents the total amount of money (in dollars) in a cash register containing p pennies is:

Total amount = p/100 dollars

Note that to convert pennies to dollars, we divide the number of pennies by 100.

Step-by-step explanation:

You are a plumber, and you are repairing a toilet leak. The job should take 0.9 hours. About how many minutes will ittake to complete the job?
O 0.015
O 5.4
O 54
O 67
O 540

Answers

Answer:

Step-by-step explanation:

multiply 60 by 0.9 and you get 54..?

Answer:

Step-by-step explanation:

0.1 is 10% of 1 and was subtracted off so we subtract 10% off 60 so 60 x 10% = 6

60 - 6 = 54

Hope this helps can I have brainliest

True or false. If a line L1has equation y = mx + b, where m and b are constants with m ≠ 0, then an equation of a line L2 perpendicular to L1 has the form y = -1/m x C, where C is a constant.

Answers

$L_1:y=mx+b\n\nL_2:y=-(1)/(m)\ *\ C\n\nL_1\ \perp\ L_2-FALSE\n--------------------\nL_3\ \perp\ L_1\iff L_3=-(1)/(m)+C$

Suppose there is an excess demand for cell phones. In a market without price controls, market pressures will cause the price of cell phones to _____ until it reaches the equilibrium price. decrease increase stay the same

Answers

When there is heavy demand, sellers always take advantage of the opportunity to skin, fleece, and screw the buyers, by INCREASING the price. "Equilibrium" is reached wgen the buyers say "Enough ! I'm not paying that price no matter how desperately I want to have it."

Answer:

increase

Step-by-step explanation: I hope im right

Which set of polar coordinates describes the same location as the rectangular coordinates (0, -2)

Answers

Polar coordinates identifie the points of the plane by a distance from the reference point and an angle from a reference direction.

In this case the distance of (0,-2) from the origin is 2 and the anglefrom the x-axis is 180°. So the polar coordinates are (2, 180°)

(-2, 90 degrees) on apex

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