3 years ago

Fifteen minus three to the power of two

Mathematics

2 answers:

leonid [27]3 years ago

7 0

Answer:

The answer 6

3x3=9

15-9=6

So you are correct

Stells [14]3 years ago

5 0

Your first answer is correct but I’m not sure if your second is. But I’m leaning towards it is not correct.

Hope this helps!

(Don’t forget to mark branliest if it is correct :) )

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Black_prince [1.1K]

Step-by-step explanation:

You have to do first and second derivatives :

y = a sin 3x + b cos 3x

dy/dx = 3a cos 3x - 3b sin 3x

d²y/dx² = - 9a sin 3x - 9b cos 3x

Next, you have to compare it :

let d²y/dx² = ky,

-9a sin 3x - 9b cos 3x = k(a sin 3x + b cos 3x)

-9(a sin 3x + b cos 3x) = k(a sin 3x + b cos 3x)

Therefore, k is equals to 9.

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3 years ago

Write the equation of the line in point-slope form that goes through the points (0, 1) and (2, 7)

laiz [17]

Answer:

point - slope form

y - 1 = 3 (x-0)

Step-by-step explanation:

step(i):-

Given points are (0,1) and (2,7)

The slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} }$

$m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} } = \frac{7-1}{2-0} = \frac{6}{2} = 3$

m =3

Step(ii):-

point -slope form

y - y₁ = m(x-x₁)

Equation of the straight line passing through the point (0,1) and having slope 'm' = 3

y - 1 = 3 (x-0)

y -1 = 3x

3x - y +1=0

Equation of the straight line passing through the point (0,1) and having slope 'm' = 3 is 3x -y +1=0

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3 years ago

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sashaice [31]

Answer:

4/25=0.16=16%

3/11=0.27=27%

Step-by-step explanation:

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3 years ago

Shannon drove 300 miles. Which expression shows the miles per gallon obtained by her car if she used g gallons of gas on the tri

Rudik [331]

Step-by-step explanation:

300 miles per gallon

$= 300 \: miles /gallon \\ = 300 \: m/g\\ = 300 \: m \: {g}^{ - 1}$

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3 years ago

How many strings of eight english letters are there

Alex17521 [72]

D because I answered it at school and it was correct

8 0

3 years ago