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3 years ago

A pentagonal prism is cut be a plane perpendicular to the base . What is the shape of the cross section that is formed?

Mathematics

1 answer:

Allisa [31]3 years ago

3 0

Answer:

Step-by-step explanation:

The cross section will have the same shape as the base of the pentagonal prism; the dimensions will be proportionally smaller.

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Find the measure of the supplement of a 95 degree angle

maksim [4K]

Answer: it is 85 degrees

Step-by-step explanation:

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4 years ago

Which line is the graph of y=1/2x+1?

pentagon [3]

Answer:

Step-by-step explanation:

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3 years ago

√x-2=x-22 A. 29 B. 27 C. 26 D. 28

Elena-2011 [213]

Answer:

B. 27

Step-by-step explanation:

Try the answers and see what works. It helps if the equation is written properly.

√(27 -2) = 27 -22

√25 = 5 . . . . . true

None of the other choices gives a rational value for √(x -2).

_____

Comment on the question

As written, the answer is x=25; not on your list. This is how we can tell the question is not written properly.

√25 -2 = 25 -22

5 -2 = 3 . . . . . true

6 0

3 years ago

Two gears are adjusted so that the smaller gear drives the larger one. if the smaller gear of 3.7cm rotates through an angle of

zepelin [54]

Answer:

The larger gear will rotate through 156°

Step-by-step explanation:

Arc Length

The arc length S of an angle θ on a circle of radius r is:

$S = \theta r$

Where θ is expressed in radians.

The smaller gear of r1=3.7 cm drives a larger gear of r2=7.1 cm. The smaller gear rotates through an angle of θ1=300°.

Convert the angle to radians:

$\displaystyle \theta_1=300*\frac{\pi}{180}=\frac{5\pi}{3}$

The arc length of the smaller gear is:

$\displaystyle S_1=\frac{5\pi}{3}\cdot 3.7$

$\displaystyle S_1=\frac{18.5\pi}{3}$

The larger gear rotates the same arc length, so:

$\displaystyle S_2=\frac{18.5\pi}{3}$

$\displaystyle \theta_2\cdot r_2=\frac{18.5\pi}{3}$

Solving for θ2:

$\displaystyle \theta_2=\frac{18.5\pi}{3r_2}$

$\displaystyle \theta_2=\frac{18.5\pi}{3*7.1}$

$\theta_2=2.73\ radians$

$\displaystyle \theta_2=2.73*\frac{180}{\pi}=156$

The larger gear will rotate through 156°

7 0

3 years ago

WILL MARK BRAINLEST IF CORRECT HELP ME OUT

sveta [45]

Answer:

x = 12

Step-by-step explanation:

Equation: 0.52(x) + 0.72(4) = 0.57(x + 4)

0.52(x) + 0.72(4) = 0.57(x + 4) $\longmapsto$ Multiply

0.52x + 2.88 = 0.57x + 2.28 $\longmapsto$ Subtract 0.52x from both sides

2.88 = 0.05x + 2.28 $\longmapsto$ Subtract 2.28 from both sides

0.6 = 0.05x $\longmapsto$ Divide all sides by 0.05

x = 12

-Chetan K

6 0

2 years ago