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olga_2 [115]
3 years ago
14

A teacher instructs the class to construct the midpoint of a segment. Jeff pulls out his ruler and measure the segment to the ne

arest millimeter and then divides the length by two to find the exact middle of the segment. has he done this correctly?
Mathematics
1 answer:
Sliva [168]3 years ago
8 0
<h2><u><em>Yes, He Has That Correctly</em></u></h2>
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A device contains two circuits. The second circuit is a backup for the first, so the second is used only when the first has fail
Wittaler [7]

Answer:

Step-by-step explanation:

The pdf of X is given by 3e^x(1-e^-2y). Please check the screenshot for the workings.

The pdf of Y is given by 6e^-2y. Please check the screenshot for the workings.

The expected time the device fails is the expected time Y fails, so we are going to find the expected time of Y which equals to 0.83.

Please check the screenshop for the workings. Thanks

5 0
2 years ago
On the first visit to the veterinarian's office, Elijah's puppy weighed 19 ounces. On the 2nd visit, the puppy had gained 9 ounc
Brums [2.3K]

Answer:

A)84%

Step-by-step explanation:

Orgin: 19 ounces

Second visit: 19+9=28 ounces

Third visit=28+7=35 ounces

35-19=16 ounces gained

16/19=84.2%=84% increase

7 0
3 years ago
The ten sides of a regular decagon are colored with five different colors, so that all five colors are used, and sides that are
const2013 [10]

Answer:

  • <u>120</u>

Explanation:

Number the sides of the decagon: 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, from top (currently red) clockwise.

  • The side number one can be colored of five different colors (red, orange, blue, green, or yellow): 5
  • The side number two can be colored with four different colors: 4
  • The side number three can be colored with three different colors: 3
  • The side number four can be colored with two different colors: 2
  • The side number five can be colored with the only color left: 1
  • Each of the sides six through ten can be colored with one color, the same as its opposite side: 1

Thus, by the multiplication or fundamental principle of counting, the number of different ways to color the decagon will be:

  • 5 × 4 × 3 × 2 ×1 × 1 × 1 × 1 × 1 × 1 = 120.

Notice that numbering the sides starting from other than the top side is a rotation of the decagon, which would lead to identical coloring decagons, not adding a new way to the number of ways to color the sides of the figure.

6 0
2 years ago
What is the circumference of the circle of parallel of latitude 40°​
pickupchik [31]

Answer:

The circumference of a circle with a latitude of 40 degrees is 251.33

3 0
2 years ago
melaine purchased some packages of pencils for $1.60. If each package cost $0.80, how many package did melanie purchase?
CaHeK987 [17]

Answer:

2

Step-by-step explanation:

8×2=16 all u do now is add a decimal between 1 and 6

so 1.60$

7 0
3 years ago
Read 2 more answers
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