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2 years ago

Elizabeth can run 3/4 mile in 1/10 of an hour. What is her speed in miles per hour?

Mathematics

1 answer:

Temka [501]2 years ago

7 0

0.75 miles per hour I think....

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HEY CAN ANYONE PLS ANSWER DIS MATH PROBELM!

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Step-by-step explanation:

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Carlos drank 2740 mL of water after football practice. How many liters did he drink

Bas_tet [7]

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Can someone please help me find the measure of the exterior angle.

dimulka [17.4K]

Answer:

k = 140°

Step-by-step explanation:

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2 years ago

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A rectangle initially has width 7 meters and length 10 meters and is expanding so that the area increases at a rate of 8 square

Tems11 [23]

Answer:

The length of rectangular is increasing at a rate 0.5714 meters per hour.

Step-by-step explanation:

We are given the following in the question:

Initial dimensions of rectangular box:

Length,l = 10 m

Width,w = 7 m

$\dfrac{dA}{dt} = 8\text{ square meters per hour}\\\\\dfrac{dw}{dt} = 40\text{ centimeters per hour} =0.4\text{ meters per hour}$

We have to find the rate of increase of length.

Area of rectangle =

$A = l\times w$

Differentiating we get,

$\displaystyle\frac{dA}{dt} = \frac{dl}{dt}w + \frac{dw}{dt}l$

Putting values, we get,

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Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.

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2 years ago

ABCD is a rectangle. Rectangle A B C D is shown. All angles are right angles. The length of A D is 5 and the length of D C is 12

sashaice [31]

Answer: 13

Step-by-step explanation:

I used Pythagorean theorem to solve this problem. As DC and AD is 12 and 5, you would do 12²+5²= c². 12²= 144 and 5²= 25. 144+25= 169. It doesn't end there. Do the square root of 169 ---> √169=13.

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2 years ago