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2 years ago

Find the area of the surface. the part of the surface z = xy that lies within the cylinder x2 + y2 = 81

Mathematics

1 answer:

Anika [276]2 years ago

4 0

Ans: The area of the surface is: 1553.081

Explanation: Please see the image attached with this answer (find attachment).

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What is the value of e? 1190 c a O A. 22° OB. 48° 0 C. 61° O D. 180°

DiKsa [7]

Answer:

C. 61 degrees

Step-by-step explanation:

a line is 180 degrees

so e and 119 degrees makes a line

so you subtract 180-119= 61 degrees

4 0

2 years ago

A marching band wants to line up for their performance. When they line up in threes there are 2 left over. When they line up in

aliina [53]

Answer:

59 students

Step-by-step explanation:

3s+2

5, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59

4s+3

7, 11, 15, 19, 23, 27, 31, 35, 39, 43, 47, 51, 55, 59

5s+4

9, 14, 19, 24, 29, 34, 39, 44, 49, 54, 59

6s+5

11, 17, 23, 29, 35, 41, 47, 53, 59

The smallest number of students there could have been is 59.

4 0

2 years ago

What is trigonometry

Vlada [557]

Answer:

the branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.

Step-by-step explanation:

3 0

2 years ago

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Which expression is the same as 5 + 3?

dimaraw [331]

Answer:

Step-by-step explanation:

5 + 3 = 8

Hope that helps!

-Sabrina

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2 years ago

The waiting time to ride a roller coaster is 20 minutes when 150 people are in line. How long is the waiting time when 240 peopl

laiz [17]

Answer: The waiting time will be 32 minutes when 240 people in line.

Step-by-step explanation:

Let us assume that the waiting time is directly proportional to the number of people in the queue.

Equation of direct proportion between variables x and y : $\dfrac{x_1}{y_1}=\dfrac{x_2}{y_2}$

Put $x_1=20,\ y_1=150,\ y_2=150$ to find $x_2$ .

$\dfrac{20}{150}=\dfrac{x_2}{240}\\\\\Rightarrow\ x_2=\dfrac{20}{150}\times240\\\\\Rightarrow\ x_2=32$

Hence, the waiting time will be 32 minutes when 240 people in line.

3 0

2 years ago

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