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4 years ago

HELP! Measure the angle shown below. A. 116° B. 104° C. 84° D. 76°

Mathematics

2 answers:

Vika [28.1K]4 years ago

8 0

76 degrees. hope this is okay ! :)

Scorpion4ik [409]4 years ago

5 0

Answer:

B. 104

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

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3. Solve each of the following constant coefficient ordinary differential equations: (10 pts] a) y"+ 3y'- 28y = 0

eduard

Answer:

$y(t) = C_1e^{4t} + C_2e^{-7t}$

Step-by-step explanation:

We are given the following information in the question:

$y''+3y'-28y = 0$

This can be written as:

$(D^2 + 3D - 28)y = 0$

The auxiliary equation obtained is:

$m^2+ 3m - 28 = 0\\ m^2 + 7m - 4m - 28 = 0\\m(m+7)-4(m+7)=0\\(m-4)(m+7)\\m = 4, m = -7$

Thus, the general solution of the equation is:

$y(t) = C_1e^{4t} + C_2e^{-7t}\\\text{where } C_1, C_2 \text{ are constants}$

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3 years ago

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NISA [10]

Answer:

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Step-by-step explanation: I dunno

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3 years ago

Help me please! These are due today.

IrinaVladis [17]

Answer:

${x}^{2} + 3x$

Step-by-step explanation:

Area of shaded region = Area of external rectangle - Area of internal rectangle

$= 4x(x + 2) - x(3x + 5) \\ = 4 {x}^{2} + 8x - 3 {x}^{2} - 5x \\ = 4 {x}^{2} - 3 {x}^{2} + 8x - 5x \\ = {x}^{2} + 3x \\$

Let the width of the rectangle be x inches.

Therefore, length of the rectangle = (x + 3) inches

Area of rectangle

$=(x + 3)\times x\\=x^2 + 3x\\$

Width of rectangle = 4 inches

Length of rectangle = 4 + 3 = 7 inches

Area of rectangle = 7*4 = 28 square inches.

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3 years ago