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Tresset [83]
3 years ago
15

How advanced is japan, attach a picture if possible.​

Mathematics
1 answer:
slega [8]3 years ago
8 0

Step-by-step explanation:

please mark as brainlist

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g A 5 foot tall man walks at 10 ft/s toward a street light that is 20 ft above the ground. What is the rate of change of the len
vredina [299]

Answer:

-\frac{10}{3}ft/s

Step-by-step explanation:

We are given that

Height of man=5 foot

\frac{dy}{dt}=-10ft/s

Height of street light=20ft

We have to find the rate of change of the length of his shadow when he is 25 ft form the street light.

ABE and CDE are similar triangle because all right triangles are similar.

\frac{20}{5}=\frac{x+y}{x}

4=\frac{x+y}{x}

4x=x+y

4x-x=y

3x=y

3\frac{dx}{dt}=\frac{dy}{dt}

\frac{dx}{dt}=\frac{1}{3}(-10)=-\frac{10}{3}ft/s=-\frac{10}{3}ft/s

Hence, the rate of change of the length of his shadow when he is 25 ft from the street light=-\frac{10}{3}ft/s

7 0
3 years ago
The equation y=15x + 500 represents the amount y that Lin earns by working for x hours, plus a performance bonus. What is Lin's
Vedmedyk [2.9K]
$15 an hour. hope this helps
8 0
3 years ago
Read 2 more answers
F(x) = 2(x + 4)^2 (x - 2)​
Kryger [21]

Answer:

3

Step-by-step explanation:

hope it helpz >-<

7 0
3 years ago
Read 2 more answers
PLS HELP ME ASAP I ONLY HAVE 5 MINITUES
Shkiper50 [21]

Answer:

200 + 50x = 450

Step-by-step explanation:

So, 200 + 50x = 450

50x = 450-200 = 250

X = 250/50

X = 5

Check:

200 + 50(5)

= 200 + 250 = 450.

5 0
3 years ago
Read 2 more answers
Tom's backyard has an area of 25 square yards. What is its area in square inches? (1 yd = 36 in.)
Iteru [2.4K]

Hey there!!

The area given : 25 square yards

We will find the length of the square.

Square area = side²

side² = 25

side = √25

side = 5 yards.

Now convert this into inches

1 yard --> 36 inches

5 yards --> 180 inches

Area = 180²

Area = 32400 inches²

Hope my answer helps!!

6 0
3 years ago
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