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2 years ago

Measure the following angles using a protactor and classify them as acute, obtuse, or right angle/s.

Mathematics

1 answer:

vitfil [10]2 years ago

8 0

Answer:

acute right acute obtuse obtuse acute

Step-by-step explanation:

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Simplify the mathematical -5 ½ x 4__ ( -9 ⅗ ) + ( - 1.4)

Alexxandr [17]

Step-by-step explanation: 5

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3 years ago

2x(x - 3) + 7(x - 3)<br> Can I have an explanation on how it works factors

Nimfa-mama [501]

Answer:

Step-by-step explanation:

2x(x - 3) + 7(x - 3)

2x^2 - 6x + 7x - 21

reduce

2x^2 + x - 21

if this is equal to 0 then:

2x^2 + x - 21 = 0

factored:

(2x + 7)(x - 3) = 0

How that was done:

Divide the (2x^2) into (2x) and (x).

Divide the (-21) into (+7) and (-3). You choose these numbers so that their sum, when multiplied by (2x) and (-3), adds up to (+x).

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3 years ago

What equations are equivalent to1/4(8x+56)=20

liq [111]

Answer:

Step-by-step explanation:

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2 years ago

Cómo simplificar 2/3 paso a paso<br>

slamgirl [31]

Answer:

No sé pude simplificar ya que ambos no tiene divisores en común. Pero si lo deseas dividir daría como resultado: 2 ÷ 3 = 0.6666666667

4 0

2 years ago

A prop for the theater club’s play is constructed as a cone topped with a half-sphere. What is the volume of the prop? Round you

prisoha [69]

The volume of the prop is calculated to be 1,875.6 cubic inches.

Step-by-step explanation:

Step 1:

The prop consists of a cone and a half-sphere on top. We will have to calculate the volumes of the cone and the half-sphere separately and then add them to obtain the total volume.

Step 2:

The volume of a cone is determined by multiplying $\frac{1}{3}$ with π, the square of the radius (r²) and height (h). Here we substitute π as 3.14. The radius is 8 inches and the height is 12 inches.

The volume of the cone: $\frac{1}{3} \pi r^{2} h = \frac{1}{3} (3.14) (8^{2}) (12)= 803.84$ cubic inches.

Step 3:

The area of a half-sphere is half of a full sphere. The volume of a sphere is given by multiplying $\frac{4}{3}$ with π and the cube of the radius (r³).

Here the radius is 8 inches. We take π as 3.14.

The volume of a full sphere $= \frac{4}{3} \pi r^{3} = \frac{4}{3} (3.14) (8^{3} ) = 2,143.573$ cubic inches.

The volume of the half-sphere $= \frac{2,143.573}{2} = 1,071.7865$ cubic inches.

Step 4:

The total volume = The volume of the cone + The volume of the half sphere,

The total volume = $803.84+1,071.7865 = 1,875.6265$ cubic inches.

Rounding this off, we get the volume of the prop as 1,875.6 cubic inches.

6 0

3 years ago