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Leokris [45]
2 years ago
14

Determine the mean of the following data. Choose the correct option. 7, 8, 9, 2, 4, 5, 12, 9

Mathematics
1 answer:
Brut [27]2 years ago
8 0

Answer:

7

Step-by-step explanation:

mean means average

there are 8 numbers

add them all up

7+8+9+2+4+5+12+9=56

divide 56 by 8 = 7

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Angle 3 and angle 4 form a linear pair. The measure of Angle 3 is four more than three
mel-nik [20]

Answer:

angle 3. ( x ) is 136°

angle 4 ( y ) is 44° !!

Step-by-step explanation:

Let angle 3 be x and angle 4 be y

Given, Angle 3 and angle 4 form a linear pair

x + y = 180 [ sum of linear pair angle is 180 ] ... ( i )

Also, The measure of Angle 3 is four more than three

The measure of Angle 3 is four more than threetimes the measure of angle 4.

x = 4 + 3y .... ( ii )

Putting value of x from ( ii ) in ( i )

4 + 3y + y = 180

4y = 176

y = 44

Also, x + y = 180 => x = 180 - 44 = 136

7 0
3 years ago
Help timed quizzes giving !!
fenix001 [56]

9.57

2.57 + 1.7= 4.27

4.27 + 5.3 = 2.57

5 0
3 years ago
Sam has 3/8 yard of twine to build model ship how much can he buy
Umnica [9.8K]
You never told us how much money he has
5 0
3 years ago
Will give brainliest if this math question is answered correctly
solniwko [45]

Answer:  37 fruit pies+42 fruit juices=79 total items

(a) 37*1.65= $61.05

    42*1.36= $57.12

(b) Mr Sanchez's class earned more money.

(c) Mr. Sanchez's class earned $3.93 more than Mr. Kelly's class

    $61.05-$57.12= $3.93


Step-by-step explanation:


6 0
3 years ago
Explain how to divide negative and positive rational numbers.
I am Lyosha [343]

Answer:

The rule for multiplying and dividing rational numbers

Ok so if both numbers are negative or positive the answer will be positive. but if one number is positive and the other is negative the answer is negative.

Hope this helps

Brainliest please

7 0
2 years ago
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