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2 years ago

Which term describes the red curve in the figure below?

Mathematics

2 answers:

andreev551 [17]2 years ago

6 0

Answer:

Option B is correct .i.e., Red Curve in Figure below is described by Circle shape.

Step-by-step explanation:

Given: Figure of two cones attached by there apex in opposite direct.

To find: Name of curve that describe the red marked curve in figure.

Red Marked curve is made when green colored square plane cuts it parallel to base.

That is it is the cross section made when place cuts a cone parallel to base.

We know Circular shaped cross section we get when a cone is cut by a plane parallel to base.

Therefore, Option B is correct .i.e., Red Curve in Figure below is described by Circle shape.

EleoNora [17]2 years ago

5 0

Answer:

the answer was circle

Step-by-step explanation:

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3 times a number is 54 less than the square of that number

Natasha2012 [34]

Answer:

-6

Step-by-step explanation:

3n = n² - 54

n² - 3n - 54 = 0

n² - 9n + 6n - 54 = 0

n(n - 9) + 6(n - 9) = 0

(n - 9)(n + 6) = 0

n = 9 , -6

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2 years ago

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What is the quotient (3x3 − x2 − x − 1) ÷ (x − 1)?

Nuetrik [128]

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Step-by-step explanation:

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2 years ago

A tennis player keeps track of the number of successful first serves he makes. During the first 8 service points of a game, only

Andru [333]

Answer:

He needs 7 more consecutive successful first serves to raise his first serve percentage to 60%.

Step-by-step explanation:

After n consecutive serves, his total number of serves is going to be n+8, since he has already served 8 times. In the best case, his number of successful first serves is n+2.

His percentage of succesful first serves is the division of the number of succesful first serves divided by the total number of serves. So

$P = \frac{n+2}{n+8}$

We want $P = 0.60$ . So

$0.6 = \frac{n+2}{n+8}$

$n+2 = 0.6*(n+8)$

$n + 2 = 0.6n + 4.8$

$n - 0.6n = 4.8 - 2$

$0.4n = 2.8$

$n = \frac{2.8}{0.4}$

$n = 7$

He needs 7 more consecutive successful first serves to raise his first serve percentage to 60%.

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A local hamburger shop sold a combined total of 518 hamburgers and cheeseburgers on Tuesday. There were 68 more cheeseburgers so

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Pavlova-9 [17]

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