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brilliants [131]
4 years ago
11

HELPPPPP!!!!A formula for finding the perimeter of a rectangle is P = 2L + 2W. If you know the perim

Mathematics
1 answer:
insens350 [35]4 years ago
3 0

Answer:

W = P/2 - L

Step-by-step explanation:

WE need to make W the subject of

P = 2L + 2W

2W = P - 2L

W = ( P - 2L) / 2

or W = P/2 - L

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A cylinder and a cone have the same volume. the cylinder has a radius x and height y. the cone has a radius of 1/2 x. find the h
vovikov84 [41]

Answer:

12 y

Step-by-step explanation:

π. x².y = ⅓. π (½x) ².h

=> eliminate π,

x²y = ⅓. ¼x².h

=> eliminate x²,

y = 1/12 h

h = 12 y

so, height of the cone = 12 y

5 0
3 years ago
What is the solution to the system of equations? Use the substitution method. {y=−2x+5 {3x−4y=2 Enter your answer in the boxes.
Nataly_w [17]
1. You have the following equations:
<span>
 y=−2x+5  (i)
 3x−4y=2  (ii)

 2. You must substitute the equation (i) into the equation (ii), as below:

 </span>3x−4y=2
 3x-4(−2x+5)=2
 3x+8x-20=2
 11x-20=2

 3. Now, you must clear the variable "x":

 11x=2+20
 x=22/11
 x=2

 4. You have the value of "x", so you can find the value of "y". When you substitute x=2 into the equation (i), you obtain:

 y=−2x+5
 y=-2(2)+5
 y=-4+5
 y=1

 5. Therefore, the answer is:

 x=2
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7 0
4 years ago
Scientific notation!
Gekata [30.6K]
3.7x10^6
7.05x10^8
21
2.56x10^-5
9.9x10^-5
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8 0
3 years ago
What is the area of a triangle whose sides are 10 meters, 14 meters, and 20 meters long? A.65 m2 b.100 m2 c. 70 m2 d.50 m2
denpristay [2]

Answer: Option A. 65 m^2

Solution:

Sides: a=10 m, b=14 m, c=20 m

Area: A=?

A=sqrt [p(p-a)(p-b)(p-c) ]

Semi-perimeter: p=(a+b+c)/2

p=(10 m+14 m+20 m)/2

p=(44 m)/2

p=22 m

A=sqrt [ (22 m)(22 m-10 m)(22 m-14 m)(22 m-20 m)]

A=sqrt [ (22 m)(12 m)(8 m)(2 m) ]

A=sqrt [ 4,224 m^4 ]

A=64.99230723 m^2

A=65 m^2

7 0
3 years ago
Read 2 more answers
(25 points)
Irina18 [472]

Answer:

Take $2975 divided by 2, then take that number divided by $17,500 to figure out the annual interest rate.

Annual interest rate: 8.5%

Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
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