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Talja [164]
3 years ago
13

Please help me I’ll give u brainliest and if u do thank u

Mathematics
1 answer:
snow_tiger [21]3 years ago
8 0

Answer: 40:27

Step-by-step explanation: 80:54 / 2:2 = 40:27

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larisa86 [58]
$50x2.2%
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3 years ago
Maggie is creating a cushion for a circular stool. The stool has a diameter of 14 inches. If she needs fabric to extend 2 inches
Marianna [84]

Answer:

396 in.^2

Step-by-step explanation:

The cushion is shaped like a cylinder with 14 inch diameter and 2 inch height.

We need to find the surface area of the cylinder.

diameter = 14 in.

radius = diameter/2 = 7 in.

height = 2 in.

A = 2(pi)r^2 + 2(pi)rh

A = 2(3.14159)(7 in.)^2 + 2(3.14159)(7 in.)(2 in.)

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Help me pls I need help with this test
ValentinkaMS [17]

Answer:

question 7 is A

Step-by-step explanation:

7 0
3 years ago
Find the general solution to 3y′′+12y=0. Give your answer as y=... . In your answer, use c1 and c2 to denote arbitrary constants
lozanna [386]

Answer:

y(x)=c_1e^{2ix}+c_2e^{-2ix}

Step-by-step explanation:

You have the following differential equation:

3y''+12y=0     (1)

In order to find the solution to the equation, you can use the method of the characteristic polynomial.

The characteristic polynomial of the given differential equation is:

3m^2+12=0\\\\m^2=-\frac{12}{3}=-4\\\\m_{1,2}=\pm2\sqrt{-1}=\pm2i

The solution of the differential equation is:

y(x)=c_1e^{m_1x}+c_2e^{m_2x}   (2)

where m1 and m2 are the roots of the characteristic polynomial.

You replace the values obtained for m1 and m2 in the equation (2). Then, the solution to the differential equation is:

y(x)=c_1e^{2ix}+c_2e^{-2ix}

4 0
3 years ago
A professional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of
noname [10]

Answer:

The answer is A). I took the test on usatestprep

Step-by-step explanation:

4 0
2 years ago
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