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spayn [35]
3 years ago
14

The strong tendency of certain minerals to break along smooth parallel planes is known as

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
6 0
It is called cleavage
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The radius of a circle is 3cm. What is the area of the circle? Use 3.14 for pie.​
vekshin1

Answer: 28.26 square cm

Step-by-step explanation:

A=\pi r^{2}=\pi(3)^{2} \approx 3.14(3)^{2} \approx \boxed{28.26 \text{ cm}^{2}}

6 0
2 years ago
PLEASE HELP!!!!! PLEASE
miv72 [106K]

Answer: d. (if a polygon has congruent angles, then it is regular)

Step-by-step explanation:

Converses follow the format of "if q, then p" (while  the original conditional is "if p, then q")

Just because there are clouds does not mean its raining (cloudy days)

just because it has four equal sides does not make it a square (rhombi have four equal sides but are not squares)

just because you cannot see the sun does not mean it is not daytime (solar eclipses)

if a polygon is regular, it must have congruent angles

4 0
3 years ago
Pls helppp!!! -------
Gelneren [198K]

Answer:

∠ A ≈ 44.42°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos A = \frac{adjacent}{hypotenuse}  = \frac{AC}{AB} = \frac{5}{7} , then

∠ A = cos^{-1} (\frac{5}{7} ) ≈ 44.42° ( to the nearest hundredth )

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3 years ago
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Gennadij [26K]
There are 10 portions to the circle, and 7 of the 10 are shaded. 7/10 is 70%
6 0
3 years ago
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How do I factor: x to the third minus 3x squared plus 4x minus 2
Nataliya [291]

Answer:

(x² − 2x + 2) (x − 1)

Step-by-step explanation:

Use grouping.

x³ − 3x² + 4x − 2

x³ − 3x² + 2x + 2x − 2

x (x² − 3x + 2) + 2 (x − 1)

x (x − 2) (x − 1) + 2 (x − 1)

(x (x − 2) + 2) (x − 1)

(x² − 2x + 2) (x − 1)

7 0
3 years ago
Read 2 more answers
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