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3 years ago

Solve for h. please show work

Mathematics

1 answer:

stira [4]3 years ago

8 0

Step-by-step explanation:

100 = cos(18) × r

with r being the upper side of the 18° angle.

r = 100/cos(18)

and

h = sin(18)×r = sin(18)×100/cos(18) = 100×sin(18)/cos(18) =

= 100×tan(18) = 32.49196962... m

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I need some help here really quick please help.

andriy [413]

Answer:

Is A

Step-by-step explanation:

5x2= 10 and 10x3= 30

A is the answer

6 0

3 years ago

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Use the procedures developed to find the general solution of the differential equation. (Let x be the independent variable.)

makkiz [27]

Solution :

Given :

2y''' + 15y'' + 24y' + 11y= 0

Let x = independent variable

$(a_0D^n + a_1D^{n-1}+a_2D^{n-2} + ....+ a_n) y) = Q(x)$ is a differential equation.

If $Q(x) \neq 0$

It is non homogeneous then,

The general solution = complementary solution + particular integral

If Q(x) = 0

It is called the homogeneous then the general solution = complementary solution.

2y''' + 15y'' + 24y' + 11y= 0

$(2D^3+15D^2+24D+11)y=0$

Auxiliary equation,

$2m^3+15m^2+24m +11 = 0$

-1 | 2 15 24 11

2 13 11 0

∴ $2m^2+13m+11=0$

The roots are

$=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$=\frac{-13\pm \sqrt{13^2-4(11)(2)}}{2(2)}$

$=\frac{-13\pm9}{4}$

$=-5.5, -1$

So, $m_1, m_2, m_3 = -1, -1, -5.5$

Then the general solution is :

$= (c_1+c_2 x)e^{-x} + c_3 \ e^{-5.5x}$

8 0

3 years ago

For which equations is x = 9 a possible solution? Check all that apply. |x| = 9 –|x| = 9 –|–x| = 9 –|–x| = –9 |x| = –9 |–x| = 9

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4 0

3 years ago

70<br>100 how do you make this fraction into simplest form

melisa1 [442]

Answer: 7

Explanation: First step is to shorten the fractions by finding the GCD (Greatest Common Divisor) of both numerator and denominator. For this example, GCD is 10. Then devide numerator and denominator with GCD:

70÷10 - 7

100÷10 - 10

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3 years ago

5m -2(m + 2) = -(3m +15)

Nostrana [21]

Answer:

m = -11/6

Step-by-step explanation:

5m -2(m + 2) = -(3m +15)

5m - 2m - 4 = -3m - 15

3m + 3m = -15 + 4

6m = -11

m = -11/6

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3 years ago

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