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GalinKa [24]
2 years ago
14

Please help as soon as possible. thanks in Advance

Mathematics
1 answer:
ivann1987 [24]2 years ago
7 0

Answer:

Step-by-step explanation:

1.) (36-4) times 12-4= 380

2.) (7+4) times 6 divided by 3= 22

3.) 25 -3 times 7 divided by 3= 18

                  Not rocket science.

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Geometry help needed. more information in the picture. please help. would be greatly appreciated.
ratelena [41]

Answer:

60

Step-by-step explanation:

180-120=60so the answer is a 60

4 0
2 years ago
An ornithologist has 4 bird feeders at separate locations. She wonders if birds are equally likely to visit each of the feeders.
Marianna [84]

Answer:

the x² test statistic 13.71

Option a) 13.71 is the correct answer.

Step-by-step explanation:

Given the data in the question;

Feeder                     1      2      3       4

Observed visits; o_i  60   90   92    58

data sample = 300

Expected e_i = 300 / 4 = 75

the x² test statistic = ?

X^2_{stat = ∑[ (o_i - e_i)²/e_i]

X^2_{stat = [ (60 - 75)² / 75 ] + [ (90 - 75)² / 75 ] + [ (92 - 75)² / 75 ] + [ (58 - 75)² / 75 ]

X^2_{stat = [ 3 ] + [ 3 ] + [ 3.8533 ] + [ 3.8533 ]

X^2_{stat = 13.7066 ≈ 13.71

Therefore, the x² test statistic 13.71

Option a) 13.71 is the correct answer.

7 0
2 years ago
Attachment mathswatch!!!!!!!!!!!!!
SSSSS [86.1K]

Answer:

a) = Slope of line AB = 1/2

<h2><em><u>Perpendicular = -2</u></em></h2>

<h2>b) <em><u>y = -2x + 6</u></em></h2><h2 />

Step-by-step explanation:

a) When it is perpendicular the answer will be positive if the initial value is negative. If it is a whole number, then the perpendicular number is going to be a fraction. The opposite applies.

b) Slope = -2x

   intercept = ?

y = -2x + b

0 = -6 + b

+6  +6

b = 6

<em><u>y = -2x + 6</u></em>

7 0
3 years ago
Read 2 more answers
kyle models a sum of two integers. he uses more negative (red) counters than postive (yellow) counters. what do you predict abou
Firdavs [7]

the sign would probably be a negative. imagine this - - - - - - and then + + +, cancel out the negatives and plus then you are left with more negatives than positive so the sign will take the negative sign.

6 0
3 years ago
A grocery store sells and 8 ounce bottle of juice for $1.76 What is the cost of the juice per ounce?
Marat540 [252]

Answer:

$0.22

Step-by-step explanation:

Now we know that 8 ounces total to $1.76. That means that in order to find how much 1 ounce costs, we will end up dividing both sides by 8

8 oz = $1.76

8 oz / 8 = $1.76 / 8

1 oz = $0.22

So, we now know that 1 oz  is equal to 22 cents. You can also confirm your answer by multiple 0.22 by 8, and you'll see that you'll get 1.76

6 0
3 years ago
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