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zepelin [54]
3 years ago
10

Whats 8r-2(7r+9) in simplest form

Mathematics
2 answers:
Elenna [48]3 years ago
5 0
-6r-18

explained:
-distribute -2 thru the parentheses
-collect like terms
-then you get -6r-18 :)
Fynjy0 [20]3 years ago
3 0

Answer:

− 6 r  −  18

Step-by-step explanation:

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6 0
2 years ago
Given that AB is a line segment and the angle y = 44°, work out the value of the angle marked x. x y А B​
Softa [21]

Answer:

Hey, welcome to Brainly ACD is a straight line. Angle CAB = 50°. Angle ABC = 60°. Work out the size of the angle marked x. Hope this helps.

Step-by-step explanation:

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8 0
3 years ago
The crosssectional areas of triangular prism and a night cylinder are congruent. The triangular prism has a helght of 5 units, a
dmitriy555 [2]

Answer:

The volume of the triangular prism  is not equal to the volume of the cylinder

Step-by-step explanation:

Given that:

The cross sectional area of triangular prism and a night cylinder are congruent. The term 'congruent' means when two objects or shapes are placed above each other , they should both overlap exactly.

It was given that:

The triangular prism has a height of 5 units

and the right cylinder height of 3 units

The conclusion that can be drawn from this is that:

The volume of the triangular prism  is not equal to the volume of the cylinder.

This is because, they do not occur in the same family. A triangular prism is a three - dimensional shape that has identical, parallel ends and parallel faces.

A triangular prism has two triangles at it ends and three rectangular faces.

The volume of the triangular prism is calculate by using the formula:

V= \dfrac{1}{2}\times b \times h\times l

On the other hand, a cylinder is a shape with two circular ends and a curved surface.The two circular ends are congruent and both circular end posses the same cross section from one end to the other in the cylinder.

The volume of a cylinder is calculated by using the formula:

V = πr²h

Thus, we conclude that irrespective of the nature of their congruency, since the heights are different which will definitely affects their volume, the the volume of the triangular prism is not equal to the volume of the cylinder.

3 0
3 years ago
100 POINTS.<br><br> PLEASE PROVIDE STEPS.
In-s [12.5K]

Answer:

π³/1296

Step-by-step explanation:

∫ [ (asin x)² dx / √(4 − 4x²) ]

Factoring the denominator:

∫ [ (asin x)² dx / √(4 (1 − x²)) ]

∫ [ (asin x)² dx / (2√(1 − x²)) ]

½ ∫ [ (asin x)² dx / √(1 − x²) ]

If u = asin x, then du = dx / √(1 − x²).

½ ∫ u² du

⅙ u³ + C

Substitute back:

⅙ (asin x)³ + C

Evaluate between x=0 and x=½.

⅙ (asin ½)³ − ⅙ (asin 0)³

⅙ (π/6)³ − ⅙ (0)³

π³/1296

4 0
3 years ago
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What is the unit rate for meters per second if a car travels 374 meters in 17 seconds?
Ronch [10]

Answer: use math.......way

Step-by-step explanation

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3 years ago
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