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3 years ago

Name the triangles that are classified by angles

Mathematics

2 answers:

Bumek [7]3 years ago

3 0

2. scalene, isosceles, equilateral

zlopas [31]3 years ago

3 0

Number 3. because, obtuse, right, and acute are different types of angles and are types of triangles.

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At Store A, a game system sells for $150. The same system sells for $175 at Store B. Use a ratio to compare the price at Store A

Kipish [7]

150:175
Hope I helped

6 0

3 years ago

The following figure is made of six semicircles with the same diameter, and of four congruent equilateral triangles represented

Oxana [17]

6 semicircles = 3 circles

The formula of the area of a equilateral triangle:

$A_\triangle=\dfrac{a^2\sqrt3}{4}$

We have a = |AE| = 3cm. Substitute:

$A_\triangle=\dfrac{3^2\sqrt3}{4}=\dfrac{9\sqrt3}{4}\ cm^2$

The formula of the area of a circle:

$A_O=\pi r^2$

We have 2r = |AE| =3cm → r = 1.5cm. Substitute:

$A_O=\pi\cdot1.5^2=2.25\pi\ cm^2$

The area of the figure:

$A=4A_\triangle+3A_O\\\\A=4\cdot\dfrac{9\sqrt3}{4}+3\cdot2.25\pi=9\sqrt3+6.75\pi=6\dfrac{3}{4}\pi+9\sqrt3\\\\=\dfrac{27}{4}\pi+\dfrac{36\sqrt3}{4}=\dfrac{9}{4}\cdot3\pi+\dfrac{9}{4}\cdot4\sqrt3=\dfrac{9}{4}(3\pi+4\sqrt3)\ cm^2$

7 0

3 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

harkovskaia [24]

Answer:

○ $\displaystyle -\frac{2\sqrt{3}}{3}\:[or\:-\frac{2}{\sqrt{3}}]$

Step-by-step explanation:

You have to know the Unit Circle on this one. So, to start off, in the degree-angle range from 180° - 270° [Quadrant III], you must figure out the cosine value that gives you −½, and according to the graph, theta will be represented as 240°. So, now that we have our θ, looking at the y-value 240°, since we want the cosecant function, all we have to do is take the multiplicative inverse of $\displaystyle -\frac{\sqrt{3}}{2},$ which gives you $\displaystyle -\frac{2\sqrt{3}}{3}.$

Extended Information

$\displaystyle y-coordinate → sin\:θ \\ x-coordinate → cos\:θ$

$\displaystyle -\frac{2\sqrt{3}}{3} = [-\frac{\sqrt{3}}{2}]^{-1}$

I am joyous to assist you anytime.

5 0

4 years ago

What is the simplified form of the ninth root of x times the ninth root of x times the ninth root of x times the ninth root of x

Ksivusya [100]

Since you are working with exponents and roots you would add the exponents together. The ninth root of x is equal to x^(1/9) and since you are using it four times your answer would be x^(4/9).

6 0

4 years ago

Read 2 more answers

What is the surface area of the box if it is scaled up by a factor of 10?

Elodia [21]

Answer:

6l², where l is the length of one side.

If the side is increased 10 times,

6(10l)²

=100 x6l²

The surface area increases 100 times. Thus, the new surface area is

272 * 100

= 27,200 sq in

Step-by-step explanation:

3 0

3 years ago