All categories

2 years ago

(a) for what values of k does the function y = cos(kt) satisfy the differential equation 16y'' = −81y?

Mathematics

1 answer:

sesenic [268]2 years ago

3 0

Try this offered solution.Answer: 3/2

You might be interested in

QF Q6.) Find the function for a.

irakobra [83]

The function for a is (f o g) (x) = 8x^2-10.

Explanation

=========================
$f(x)=2x-4, g(x)=4x^2-3, (f o g)=f(g(x))$

I already knew that the g of x is equal to $4x^2-3$ so I substitute inside of the g of x

$g(x)=4x^2-3$ =======> $f(x)=4x^2-3$ =============> $2(4x^2-3)-4$

simplify it

$2(4x^2-3)-4$ =======> $8x^2-6-4$ =========> $8x^2-10$

$(f o g) = 8x^2-10$

5 0

2 years ago

Read 2 more answers

Triangles F H G and K J G share common point G. The lengths of sides H G and G J are congruent. Angles F H G and K J G are right

Elza [17]

The answer is D...........

5 0

2 years ago

Read 2 more answers

Convert 2x-y=-7 into slop-intercept form

kykrilka [37]

I believe the answer is y=2x+7

7 0

2 years ago

Read 2 more answers

Can someone help me with this

SashulF [63]

Answer:

$\angle NRQ =85 \degree$

Given:

$\angle RPQ = 45 \degree \\ \angle PQR = (6x + 4)\degree \\ \angle NRQ = (15x - 5)\degree$

Step-by-step explanation:

Property used: An exterior angle of a triangle is equal to the sum of the opposite interior angles.

$= > \angle RPQ + \angle PQR = \angle NRQ \\ \\ = > 45 \degree + (6x + 4)\degree = (15x - 5)\degree \\ \\ = > 45\degree + 6x\degree + 4\degree = 15x\degree - 5\degree \\ \\ = > 49\degree + 5 \degree= 15x\degree - 6x\degree \\ \\ = > 54\degree = 9x\degree \\ \\ = > 9x\degree = 54\degree \\ \\ = > x\degree = (\frac{54}{9} )\degree \\ \\ = > x\degree = 6\degree \\ \\ Putting \: value \: of \: x \: in \: \angle NRQ \\ \\ = > \angle NRQ = (15x - 5)\degree \\ \\ = > \angle NRQ = (15 \times 6 - 5) \degree \\ \\ = > \angle NRQ =85 \degree$

4 0

2 years ago

Help asap i need help

gulaghasi [49]

Answer:

1st option: G, H, I

Step-by-step explanation:

Collinear points are points that lie on the same straight line.

In the diagram, the collinear points are:

• L, H, J

• G, H, I, K

For the 2nd option, I does not lie on the same straight line as L and H.

For the 3rd option, J does not lie on the same straight line as G and H.

For the 4th option, J does not lie on the same straight line as G and I.

Thus, the 2nd, 3rd and 4th options are incorrect.

7 0

2 years ago

Read 2 more answers