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DiKsa [7]
2 years ago
9

Janine wishes to conduct a poll to predict how many students will vote for her for class president. Which polling methods are li

kely to be biased? Choose all answers that are correct. A. Five people in each of Janine’s classes are selected and asked for whom they intend to vote. B. From a list of all students in Janine’s grade, 25 students are selected at random and asked for whom they intend to vote. C. Every 10th student from a list of all students in Janine’s grade is selected and asked for whom the student intends to vote. D. Janine chooses 5 of her friends and asks each to select another 5 students. These 25 students are asked for whom they intend to vote.
Mathematics
1 answer:
vredina [299]2 years ago
4 0
D since she is asking her friends who are just going to ask their friends
A. since only 5 are asked
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PLS ANSWER WHAT IS 3 and 14 hundredths minus 1 and 9 hundredths?
k0ka [10]

Answer:

2 and 5 hundredths

Step-by-step explanation:

3 - 1 = 2

14 hundredths - 9 hundredths = 5 hundredths

hence you get 2 and 5 hundredths

6 0
2 years ago
A retangle has an area of 30 square meters and a perimeter of 34 meters what are the dimensions of the retangle
s344n2d4d5 [400]

Answer: Length = 15 meters

Width = 2 meters

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

Area of a rectangle = l × w

where l = length

w = width

Therefore,

2l + 2w = 34 ...... i

l × w = 30 ........ ii

From equation i

2l + 2w = 34

Divide through by 2.

l + w = 17 ...... iii

Then, l = 17 - w ........ iv

Put equation iv into ii

l × w = 30

(17 - w) × w = 30

17w - w² = 30

w² - 17w + 30 = 0

w² - 15w - 2w + 30 = 0

w(w - 15) - 2(w - 15) = 0

(w - 2) = 0

w = 0 + 2 = 2

w - 15 = 0

w = 0 + 15 = 15

Length = 15 meters

Width = 2 meters

6 0
2 years ago
Need help pls explain
Scilla [17]

Answer:

  • C. 93°

Step-by-step explanation:

WY  is the diameter.

WX and XY sum to 180° as half the circle.

<u>Central angle is equal to intercepted arc:</u>

  • mXY = m∠XVY = 87°
  • mWX = 180° - mXY = 180° - 87° = 93°

Correct choice is C

4 0
2 years ago
Read 2 more answers
The following data shows the changes in tempreatures across varius cities from moorning to noon. which city recorded the maximum
fgiga [73]
25 because it is cool and it is the maximum weather in the earth totally
6 0
3 years ago
A pet store has three fish tanks, each holding a different volume of water and a different number of fish. Tank AAA holds 40\tex
bearhunter [10]

Answer:

C, A and B

Step-by-step explanation:

Tank A holds 40 Liters and 5 fish.

  • Volume per fish of Tank A =40 \div 5 =$ 8 fish per liter

Tank B holds 100 Liters and 12 fish.

  • Volume per fish of Tank B =100 \div 12 =$ 8.33 fish per liter

Tank C holds 180 Liters and 23 fish.

  • Volume per fish of Tank C =180 \div 23 =$ 7.83 fish per liter

Therefore, the volume per fish from least to greatest is:

7.83, 8 and 8.33

These correspond to the tanks: C, A and B respectively.

3 0
2 years ago
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