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3 years ago

How many inches are in feet

Mathematics

2 answers:

Svetach [21]3 years ago

4 0

Answer:

12 inches in one foot.

GaryK [48]3 years ago

3 0

Answer: 12 inches

Explanation:

12 inches = 1 feet

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The temperature T of a cup of coffee is a function T(t) where t is the time in minutes. The room temperature is 18° Celsius. The

ella [17]

Answer:

(1/C)dR/dt - dT/dt = 0

Step-by-step explanation:

Let R be the rate at which the coffee cools down. Since R is proportional to the difference between the temperature of the coffee, T and the room temperature, we write

R = C(T - 18)

Where C is the proportionality constant.

To write a differential equation describing the derivative of the coffee temperature in terms of T and t, we need to differentiate

R = C(T - 18)

with respect to t.

Doing that, we have

dR/dt = CdT/dt

(1/C)dR/dt - dT/dt = 0

Which is the required differential equation.

7 0

4 years ago

Estimate then divide 75578÷53

DerKrebs [107]

<h2>Answer:</h2><h2>1426</h2><h2></h2><h2>Hope this helps!!</h2>

3 0

3 years ago

****Middle school math please help***

Galina-37 [17]

Answer:

602.44

Step-by-step explanation:

13.5 times 10.5 equals 141.75 square feet

then 141.75 times 4.25

5 0

3 years ago

A ball is shot straight up from the top of a 15-story building. The motion of the ball could be described by the function: h(t)=

viktelen [127]

Answer:

After 4 seconds the height is 480 meters.
The maximum height is 484 meters.
The ball hits the ground after 10 seconds

Step-by-step explanation:

The height after four seconds is h(4) = -16 * r² + 144*4+160 = 480

The maximum height of the ball is the value it takes at its vertex 'v = -b/2a'. In this case a = -16 and b = 144, so the v = -144/-32 = 4.5. The maximum height of the ball as a result is h(4.5) = -16 (4.5)² + 144*4.5 + 160 = 484

To find the moment the ball hits the ground, we need to find when h takes the value 0 by using the quadratic formula, with a = -16, b = 144 and c = 160.

$r_1,r_2 = \frac{-144 \, ^+_- \sqrt{144^2-4*(-16)*160}}{2*(-16)} = \frac{-144 \, ^+_- \sqrt{30976}}{-32} = \frac{-144 \, ^+_- 176}{-32} = -1, 10$

Since t cant take negative values, then the correct value is 10. The ball hits the ground after 10 seconds.

7 0

3 years ago

Simplify the expression.<br><br> (6g)3

garik1379 [7]

Answer:

18g

Step-by-step explanation:

Multiply the 3 into 6g.

4 0

4 years ago

Read 2 more answers