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4vir4ik [10]
3 years ago
10

Use the net to find the lateral area of the cylinder.

Mathematics
2 answers:
malfutka [58]3 years ago
5 0

Answer:

L.A=Pi*d*h= pi*15*12=180pi

Step-by-step explanation:

ioda3 years ago
4 0
The lateral area is the area around, the bases are the circles so the lateral area is the area of the rectangle

we just need the legnth of the rectangle which is the circumfernece of the circle

C=pid
d=12
C=12pi

area=lw
aera=12pi*15
area=180pi yd^2
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City A's population of 1115000 is decreasing at a rate of 15000 per year. City B's population of 698000 is increasing at a rate
vredina [299]

Answer:

7 years

Step-by-step explanation:

Let x  be number of years the populations be equal

City A's population of 1115000 is decreasing at a rate of 15000 per year.

The population is decreasing at a constant rate so we use equation

y= mx + b

where m is the slope(rate), b is the initial population

m= -15000 (decreasing) , b= 1115000

y= -15000 x + 1115000

City B's population of 698000 is increasing at a rate of 45000 per year.

m= 45000 (increasing) , b= 698000

y= 45000 x + 698000

Now we set the equations equal and solve for x

45000 x + 698000 = -15000 x + 1115000

Add 15000 on both sides

60000 x + 698000 = 1115000

Subtract 689000 on both sides

60000 x = 417000

Divide by 60000 on both sides

x= 6.95

So after 7 years the population will be equal.

7 0
3 years ago
Can I have more help? Thank you xtra points!
Feliz [49]

Answer:

135

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
That are equal to 4⋅10-3:
kozerog [31]
Answer: 37

Explanation:

Order of operations says you do multiplication first, you get 4 • 10 = 40

Then do subtraction, so 40 - 3 = 37

Hope this helps!
7 0
3 years ago
Can someone help out? or explain? ​
Nataliya [291]
Y = 90 degrees

1) The angles on a straight line add to 180 degrees so 180-110= 70 degrees.

2) The angles in a triangle add to 180 degrees so 70+70= 140 degrees. The angle at the top of the triangle will have to be 40 degrees as 140+40= 180 degrees.

3) As x is half the angle at the top of the triangle (40 degrees), x will equal 20 degrees.

4) As the angles in a triangle add to 180 degrees 20+70=90 degrees 180-90=90 degrees.

5) Answer = 90 degrees

7 0
3 years ago
A rectangular painting is 42 centimeters wide and 51 centimeters long. What is the perimeter of this painting?
Alex
186cm
You add all the sides up, so 42+42+51+51 which equals 186cm
6 0
2 years ago
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