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3 years ago

13

Which correct answer will this be?

1 answer:

djverab [1.8K]3 years ago

6 0

Answer:

none of the above

Step-by-step explanation:

The plot has a generally downward trend, so the correlation coefficient will be negative. However, it is not scattered enough for r = -0.36 and not linear enough for r = -0.95.

My estimate of point values lets my graphing calculator give the correlation coefficient as -0.80. This is closer to -0.95 than to -0.36, but is significantly different from both of them.

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shtirl [24]

Answer:

Step-by-step explanation:

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3 years ago

Determine the equation of the tangent line to the given path at the specified value of t. (sin(7t), cos(7t), 2t9/2); t=1

Reptile [31]

Answer:

P(t) = {sin7, cos7, 2} + (7cos7, -7sin7, 9)(t-1)

Step-by-step explanation:

The equation of the tangent line to the given path at the specified value of t is expressed as;

P(t) = f(t0) + f'(t0)(t - t0)

f(t0) = (sin(7t), cos(7t), 2t^9/2)

at t0 = 1;

f(t0) = {sin7(1), cos7(1), 2(1)^9/2}

f(t0) = {sin7, cos7, 2}

f'(t0) = (7cos7t, -7sin7t, 9/2{2t^9/2-1}

f'(t0) = (7cos7t, -7sin7t, 9t^7/2}

If t0 = 1

f'(1) = (7cos7(1), -7sin7(1), 9(1)^7/2)

f'(1) =(7cos7, -7sin7, 9)

Substituting the given function into the tangent equation will give:

P(t) = f(t0) + f'(t0)(t - t0)

P(t)= {sin7, cos7, 2} + (7cos7, -7sin7, 9)(t-1)

The final expression gives the equation of the tangent line to the path.

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3 years ago

Two angles o a triangle each measure 70 degrees what is the measurement of the third angle in degrees

hjlf

The 3 angles of a triangle, when added, = 180 degrees

so if 2 of them are 70.....70 + 70 = 140
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Step-by-step explanation:

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