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3 years ago

Math Vocabulary. Plese help.

Mathematics

2 answers:

babymother [125]3 years ago

8 0

Step-by-step explanation:

1)Pythagoras triplet.........

2)Mid point theorem

grin007 [14]3 years ago

4 0

Answer:

1. A Pythagorean triple

Step-by-step explanation:

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A glass marble has a diameter of 18 millimeters. What is the approximate volume of the marble? Use 3.14 for .

maria [59]

The volume of the sphere is 3,052.08 cubic millimeters. The correct answer is A.

<h3>What is the volume of sphere?</h3>

If the given sphere is of radius r units, then its volume is given as:

$V= \dfrac{4}{3} \pi r^3 \: \rm unit^3$

A glass marble has a diameter of 18 millimeters.

The radius is 9

$V= \dfrac{4}{3} (3.14) (9)^3 \: \rm unit^3\\\\V = 3,052.08 cubic millimeters$

The volume of the sphere is 3,052.08 cubic millimeters. The correct answer is A.

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2 years ago

A square pyramid has sides of 8 m. Each face is an equilateral triangle.

Annette [7]

Lateral Area means Area of all four triangles

Now area of 1 triangle = $\frac{\sqrt{3}}{4} a^2 = \frac{\sqrt{3}}{4} 8^2$

= $\frac{\sqrt{3}}{4} * 64 = 16\sqrt{3}$ square meters

Now for four triangles we multiply by 4

Lateral area of pyramid = $4* 16\sqrt{3} = 64\sqrt{3}$ m^2

that is Option D

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3 years ago

How many circles have a center of (4,7)?

nikklg [1K]

Any circle that can given by

$(x-4)^{2}+(y-7)^{2}=r^{2}$

have a center of $(4,\;7).$

You can choose any positive value for the radius $r.$ Hence, there are infinity circles.

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4 years ago

18) At noon, what is the length of the shadow cast by a flagpole known to be 20 feet tall? Label the answer correctly.

strojnjashka [21]

Actual length of the pole and the length of the shadow cast by the pole follow the proportional relationship.

Following this rule, 20 feet tall flagpole will cast 3.33 feet shadow.

If the length of the shadow = x feet

Proportional relationship will be defined by the expression,

$\frac{\text{Actual height}}{\text{Length of the shadow}}\rightarrow \frac{6}{1}= \frac{20}{x}$

$6x=20$

$x=\frac{20}{6}$

$x=3.33$ feet

Therefore, length of the shadow cast by flagpole will be 3.33 feet.

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2 years ago

(3x5)-(3x2)=3x(?-?). What’s the ?

dolphi86 [110]

Answer:

x = 0

Step-by-step explanation:

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3 years ago

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