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g100num [7]
2 years ago
8

HELP HELP HELP WILL MARK BRAINLIST ❄️✨

Mathematics
2 answers:
Serga [27]2 years ago
6 0

Answer:

D   28

Step-by-step explanation:

31 own 13-15

3 own 1-3

31 - 3 = 28

Tresset [83]2 years ago
5 0

Answer:

D. 28

Step-by-step explanation:

1-3 had 31 people and 13-15 had 3 people.

Then we subtract the values (31-3) to get 28.

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Whats the answer? <br> and how did I get my answer?
Kamila [148]

Answer:

40°

Step-by-step explanation:

Angle 1 and Angle 2 are corresponding angles.

Corresponding angles are congruent, so 3x + 4 = 5x - 20

Solving 3x + 4 = 5x - 20

3x = 5x - 24

2x = 24

x = 12

Substitute angle 1

3x + 4 = 36 + 4 = 40

7 0
2 years ago
The sum of two numbers is 7.If one number is subtracted from the​ other, the result is negative 3.Find the numbers.
Natali5045456 [20]
The numbers are 5 and 2.

5 + 2 = 7

5 - 2 = -3
6 0
3 years ago
Read 2 more answers
Select each pair of functions that are inverses of each other
svlad2 [7]

Answer:

The first two choices only: A and B.

Step-by-step explanation:

The inverses are the ones with one relation having point (x,y) and the other relation having point (y,x). This most obvious when looking at points on a table or a list of points.

So the first pair are inverses because per point (x,y) on the first list you have (y,x) on the second list.

Examples:

1st list contains (-5,-9) while second list contains (-9,-5).

1st list contains (3,7) while the second list contains (7,3).

As long as (a,b) is in the first list and (b,a) is in the second or vice versa, then the pair of relations are inverses. So the first choice contains inverses.

Now lets talk about the pair of functions given in function notation.

Let's start with the first.

y=x+7

Extend the first idea more. Just swap x and y and then see after solving for y if what it equals is what g equals then f and g are inverses in the second choice.

x=y+7

Subtract 7 on both sides:

x-7=y

y=x-7

This is what g equals so the second choice is an answer.

The last choice does not contain a pair of inverses. Example: (2,3) is in the first list but (3,2) is not in the second.

6 0
3 years ago
Read 2 more answers
There is a bag filled with 5 blue, 4 red and 3 green marbles.
valentinak56 [21]

Answer: 2/12 (1/6 simplified)

Step-by-step explanation:

5+4+3=12

2 marbles of the same color

2/12

2/2=1

12/2=6

4 0
3 years ago
Find all values of k so that each trinomial <br> 2 x^2+ kx+12
n200080 [17]
K can be 10,11,14,25

Work
(2x+4)(X+3)
(2x+3(X+4)
(2x+6)(X+2)
(2x+2)(X+6)
(2x+1)(X+12)
(2x+12)(X+1)
6 0
3 years ago
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