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Aneli [31]
2 years ago
9

Do 1-4 pleaseeeeeeee

Mathematics
2 answers:
Mrrafil [7]2 years ago
8 0
1. 21 - 4 = 17

2. 10 x -3

3. 22 + 3 = 25

4. 6 + 6 = 12

Hopefully I’m correct.
Wewaii [24]2 years ago
3 0

Answer:

1. -13

2. -3

3. 22

4. Twice 6 is 12

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Find the distance between the two points~<br>A ( 7 , 4 ) and B ( 3 , 2 )<br><br><br>thankyou!​
vodka [1.7K]

Answer:

AB = \sqrt{20}

Step-by-step explanation:

calculate the distance using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = B (3, 2 ) and (x₂, y₂ ) = A (7, 4 )

AB = \sqrt{(7-3)^2+(4-2)^2}

     = \sqrt{4^2+2^2}

     = \sqrt{16+4}

     = \sqrt{20}

     ≈ 4.47 ( to 2 dec. places )

6 0
2 years ago
Read 2 more answers
Terrance spent one fourth of his money on music he downloaded. He then gives 15 to charity. He spent half of what he had remaini
Aleks04 [339]
Work backwards..
30 helmet + 30 left = 60$
60 + 15 charity = 75$
75 + 25 music = 100$
8 0
3 years ago
A pet survey found that the ratio of dogs a cats is 2/5. Which proportion shows the number of dogs if the number of cats is 140?
Sonbull [250]
There are 56 dogs

2/5 = x/140

140 x 2 = 5 x x
280 = 5x
56 = x
8 0
4 years ago
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*WILL MARK BRAINLIEST* 15 POINTS<br> Match each word to its correct definition:
IgorC [24]

Answer:

2  

3

1

4

Step-by-step explanation:

Angles that add up to 90 are Complementary angles.

Two angles that have a common vertex and a common side but do not overlap are Adjacent angles.

Angles that are opposite each other and have the same measurment are vertical angles.

Angles that add up to 180 are Supplementary angles.

Hope this helps!! :D

7 0
3 years ago
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two different floor plans are being offered in a new housing development. several prospective buyers from three different age gr
Lesechka [4]
<h3>Answer: Approximately 0.677</h3>

Explanation:

Add up the values in the plan A column. There are 10+12+16 = 38 people who prefer plan A.

Add up the values in the "40-49" row to find that 16+8 = 24 people are ages 40 to 49.

We have 38+24-16 = 46 people who either prefer plan A, are aged 40-49, or fit both descriptions. I subtracted off 16 because those 16 people were counted twice when adding 38 and 24.

An alternative way to get this value of 46 is to add up everything that is in column1 or row 3 (or both). So that would get 10+12+16+8 = 46.

Now add up everything in the table to find out how many people were surveyed total. That would be 10+7+12+15+16+8 = 68 people overall.

The probability of someone liking plan A, or being age 40-49, or both is 46/68 = 0.6765 approximately. Rounding to 3 decimal places gives 0.677

7 0
3 years ago
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