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3 years ago

Check my answer please? Get 25 points + Brainliest!!

Mathematics

1 answer:

Zigmanuir [339]3 years ago

7 0

No its sss because you have no given angles only sides

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An ice cube is melting, and the lengths of its sides are decreasing at a rate of 0.8 millimeters per minute At what rate is the

julia-pushkina [17]

Answer:

The rate of decrease is: $43.2mm^3/min$

Step-by-step explanation:

Given

$l = 18mm$

$\frac{dl}{dt} = -0.8mm/min$ ---- We used minus because the rate is decreasing

Required

Rate of decrease when: $l = 18mm$

The volume of the cube is:

$V = l^3$

Differentiate

$\frac{dV}{dl} = 3l^2$

Make dV the subject

$dV = 3l^2 \cdot dl$

Divide both sides by dt

$\frac{dV}{dt} = 3l^2 \cdot \frac{dl}{dt}$

Given that: $l = 18mm$ and $\frac{dl}{dt} = -0.8mm/min$

$\frac{dV}{dt} = 3 * (18mm)^2 * (-0.8mm/min)$

$\frac{dV}{dt} = 3 * 18 *-0.8mm^3/min$

$\frac{dV}{dt} = -43.2mm^3/min$

<em>Hence, the rate of decrease is: 43.2mm^3/min</em>

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3 years ago

An equivalent expression for sin x is?<br><br>(please answer with steps)

Anestetic [448]

Answer:

Step-by-step explanation:

Using the trigonometric identity

sin2x = 2sinxcosx

That is the angle on the right side is half the angle on the left, thus

sinΘ = 2sin( $\frac{1}{2}$ Θ )cos( $\frac{1}{2}$ Θ ) → b

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2 years ago

As smart phones have grown in popularity, regular cell phones have fallen out of favor. As a result, one electronics retailer es

prohojiy [21]

Answer:

4,239,505

Step-by-step explanation:

847,901 x 5 = 4,239,505

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2 years ago

Give an example of a function g(x) such that has vertical asymptotes at x = −1 and x = 2.

BigorU [14]

Answer:

$\frac{69420}{(x+1)(x-2)}$

Step-by-step explanation:

An asymptote of a vertical line is one that the graph can't exactly reach, but can get as close as you want it to be (as long as the distance is not 0), while the x- or y-coordinates tend to plus/minus infinity. An example of where this happens is when filling in the x-value would result in a zero in the denominator, hence the answer.

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2 years ago

Suppose that, after measuring the duration of many telephone calls, a telephone company found their data was well-approximated b

Temka [501]

856755556666667811111118999.56

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3 years ago