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Studentka2010 [4]

3 years ago

15

Pls help! Find the value of x in the figure below1894.53

1 answer:

Jlenok [28]3 years ago

3 0

18 I believe but I could be wrong

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Show that y=cos(t)y=cos(t) is a solution to (dydt)2=1−y2(dydt)2=1−y2. Enter your answers below in terms of the independent varia

GrogVix [38]

Answer:

$(\frac{dy}{dt})^2=sin^2t$

Step-by-step explanation:

$y=cost$

DE : $(\frac{dy}{dt})^2=1-y^2$

If y is a solution of given DE then it satisfied the DE.

Differentiate w.r.t t

$\frac{dy}{dt}=-sint$

Using the formula

$\frac{d(cosx)}{dx}=-sinx$

LHS: $(\frac{dy}{dt})^2=(-sint)^2=sin^2t$

RHS

$1-y^2=1-cos^2t=sin^2t$

By using the formula

$sin^2t=1-cos^2t$

LHS=RHs

Hence, y is a solution of given DE

$(\frac{dy}{dt})^2=sin^2t$

7 0

3 years ago

Solve: 16x2 - 80 = 0<br> Round the answer to the nearest hundredth.

GenaCL600 [577]

Answer:

-48

Step-by-step explanation:

16 x 2 = 32

32 - 80 = -48

5 0

2 years ago

Help please no links and not bots

goldfiish [28.3K]

Answer:

75=5*3*5

Step-by-step explanation:

5*3=15

15*5=75

5 0

2 years ago

(x + 4)2 – 3(x + 4) – 3 = 0 Select the solution(s) of the original equation.

Aneli [31]

Answer:

x=−7

Step-by-step explanation:

(x+4)(2)−3(x+4)−3=0

(x)(2)+(4)(2)+(−3)(x)+(−3)(4)+−3=0(Distribute)

2x+8+−3x+−12+−3=0

(2x+−3x)+(8+−12+−3)=0(Combine Like Terms)

−x+−7=0

4 0

2 years ago

Write an equation of the line that passes through the given point and is perpendicular to the given line

Otrada [13]

fAnswer:

Step-by-step explanation:

d

4 0

3 years ago