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2 years ago

14

On January 1, 2020 the high temperature was 63 degrees fahrenheit in Oakley, California. The low in the evening was -30 degrees.

What is the difference between the two temperatures? (only type the number)

1 answer:

Montano1993 [528]2 years ago

5 0

Answer:

93

Step-by-step explanation:

63 - (-30) = 63+30=93

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The third, they are equivalent because the size of the shaded area is the same.

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2 years ago

tammy is 14 years old. she has a younger sister and an older brother. her sister is 12. the mean of all their ages is 14. how ol

mafiozo [28]

Answer:

16

Step-by-step explanation:

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2 years ago

Find the dimensions of a closed right circular cylindrical can of smallest surface area whose volume is 128pi cm^3

Ratling [72]

The surface area of a cylindrical can is equal to the sum of the area of two circles and the body of the cylinder: 2πr2 + 2πrh. volume is equal to π<span>r2h.

V = </span>π<span>r2h = 128 pi
r2h = 128
h = 128/r2

A = </span><span>2πr2 + 2πrh
</span>A = 2πr2 + 2πr*(<span>128/r2)
</span>A = 2πr2 + 256 <span>π / r
</span><span>
the optimum dimensions is determined by taking the first derivative and equating to zero.

dA = 4 </span>πr - 256 <span>π /r2 = 0
r = 4 cm
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</span><span>

</span>

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2 years ago

the volume of a cone is 120 cubic centimeters. the height of the cone is 4.5 centimeters. determine the radius of a cone

kolbaska11 [484]

<h3> given:</h3>

<u> $v = 120 \: {cm}^{3}$ </u>

<u> $h = 4.5 \: cm$ </u>

<h3>to find:</h3>

the radius of the cone.

<h3>solution:</h3>

$r = \sqrt{3 \frac{v}{\pi \: h} }$

$r = \sqrt{3 \times \frac{120}{\pi \times 4.5} }$

$r = 5.04627 \: cm$

$r = 5.05 \: cm$

<u>hence</u><u>,</u><u> </u><u>the</u><u> </u><u>radius</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>given</u><u> </u><u>cone</u><u> </u><u>is</u><u> </u><u>5.05</u><u> </u><u>centimeters</u><u>.</u>

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2 years ago