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Svetllana [295]
4 years ago
9

(-7a+7b-1)-(a+8) find the difference

Mathematics
2 answers:
aalyn [17]4 years ago
8 0

Answer: -8a+7b-9


Step-by-step explanation:

(-7a+7b-1)-(a+8)

-7a+7b-1-a-8 (distributive property)

-8a+7b-9 (combine like-terms)

Arlecino [84]4 years ago
4 0

Answer:

-8a+7b-9

Step-by-step explanation:

(-7a+7b-1)-(a+8)=-7a+7b-1-a-8=-7a+7b-a-9=-8a+7b-9

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Answer:

19 feet

Step-by-step explanation:

The perimeter is calculated by multiplying the sum of length and width by 2

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x = 16

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kakasveta [241]

Given:

Amplitude = 2

Midline = 5

Period of \dfrac{3\pi}{4}.

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The cosine function.

Solution:

The general cosine function is:

f(x)=A\cos(Bx+C)+D            ...(i)

Where, |A| is amplitude, \dfrac{2\pi}{B} is period, -\dfrac{C}{B} is phase shift and D is the mid line.

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\dfrac{3\pi}{4}=\dfrac{2\pi}{B}

B=2\pi\times \dfrac{4}{3\pi}

B=\dfrac{8}{3}

Substituting A=2,\ B=\dfrac{8}{3},\ C=0,\ D=5 in (i), we get

f(x)=2\cos(\dfrac{8}{3}x+0)+5

f(x)=2\cos(\dfrac{8}{3}x)+5

Therefore, the required cosine function is f(x)=2\cos(\dfrac{8}{3}x)+5.

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