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3 years ago

15

I NEED HELP PLEASE 10 POINTS

1 answer:

densk [106]3 years ago

6 0

Answer:

Yes, it is proportional because it has a constant rate of change. I think so at least.

Step-by-step explanation:

Every day she loses $5.

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How many quarter inches long is 7 3/4

Amiraneli [1.4K]

There are 4 quarterly inches in 1 inch so 4 x7=28 + 3 quarter in 3/4 so 31 quarter inches in all.

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3 years ago

Determine whether the point (1, 5) is a solution to the system of equations. Explain your reasoning in complete sentences.

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The solution to any system graphically can be found where the 2 graphs intersect. These two graphs intersect at the point (0, 2).

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Find the fraction equivalent to 8/24 in lowest term

olga2289 [7]

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3 years ago

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BartSMP [9]

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B

Step-by-step explanation:

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2 years ago

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Use the definition mtan=lim

Leokris [45]

(a) mtan refers to the slope of the tangent line. Given <em>f(x)</em> = 9 + 7<em>x</em> ², compute the difference quotient:

$\dfrac{f(x+h)-f(x)}h = \dfrac{(9+7(x+h)^2)-(9+7x^2)}h = \dfrac{(9+7x^2+14xh+7h^2)-9-7x^2}h = \dfrac{14xh+7h^2}h$

Then as <em>h</em> approaches 0 - bearing in mind that we're specifically considering <em>h</em> <em>near</em> 0, and not <em>h</em> = 0 - we can eliminate the factor of <em>h</em> in the numerator and denominator, so that

$m_{\rm tan} = \displaystyle \lim_{h\to0}\frac{f(x+h)-f(x)}h = \lim_{h\to0}\frac{14xh+7h^2}h = \lim_{h\to0}(14x+7h) = 14x$

and so the slope of the line at <em>P</em> (0, 9), for which we take <em>x</em> = 0, is 0.

(b) The equation of the tangent line is then <em>y</em> = 9.

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2 years ago