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3 years ago

Some Geometry problems I need some help with!

Mathematics

1 answer:

drek231 [11]3 years ago

8 0

Answer:

When a 2-D circle is rotated around a line that it does not touch. What is the name of the resulting figure?

The answer is annulus

A sphere with radius 16 m is cut by a plane though it’s a great circle. What is the best description of the cross section that is shown?

B. A circle with radius 16 m

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How many millimetres are there in 50<br><br>cm

makkiz [27]

Answer:

50cm = 500mm

Step-by-step explanation:

Multiplythe length value by 10

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2 years ago

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What is the pattern in the values as the exponents increase? Powers of 2 Value 2 Superscript negative 5 StartFraction 1 Over 32

Tatiana [17]

Answer:

(D)Multiply the previous value by 2

Step-by-step explanation:

$\left|\begin{array}{c|c}$Powers of 2&Value\\2^{-5}&\frac{1}{32}\\\\2^{-4}&\frac{1}{16}\\\\2^{-3}&\frac{1}{8}\\\\2^{-2}&\frac{1}{4}\\\\ 2^{-1}&\frac{1}{2}\\\\2^{0}&1\end{array}\right|$

From the given table, we observe that the negative power of 2 reduces by 1 at each step.

$2^{-5}X2=2^{-4}\\2^{-4}X2=2^{-3}\\2^{-3}X2=2^{-2}$

Therefore, as the exponents increase, we multiply the previous value by 2 to obtain the next value.

The correct option is D.

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3 years ago

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Which expression has a value that is a rational number?

Gnom [1K]

Answer:

The expression has a negative rational number A as its numerical value. Positive rational B. positive integer. negative integer. Question ...

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2 years ago

10.4 sweets cost 28p altogether,<br> how much much do 7 sweets cost

Serjik [45]

28/10.4=2.69
2.69*7=18.83

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3 years ago

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if you have installed 4000 linear feet of 8 inch water pipe how much will it hold when full? (answe is 10,543) i need help writi

GuDViN [60]

Answer:

$768,000\pi\ in^{3}$

Step-by-step explanation:

we know that

The volume of a cylinder (water pipe) is equal to

$V=\pi r^{2}L$

In this problem we have

$r=8/2=4\ in$ -----> the radius is half the diameter

$L=4,000\ ft$ ----> convert to inches

$L=4,000*12=48,000\ in$

$V=\pi (4^{2}48,000)=768,000\pi\ in^{3}$

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3 years ago