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Oksi-84 [34.3K]
1 year ago
10

Sara solved the inequality -4x + > 9 and graphed the solution set. She made a mistake but cannot determine where. Her work is

shown

Mathematics
1 answer:
Lunna [17]1 year ago
5 0

Answer:

step 2 is where she made her mistake

Step-by-step explanation:

- 4x + 1 > 9 ( subtract 1 from both sides )

- 4x > 8

divide both sides by - 4 , reversing the symbol as a result of dividing by a negative quantity.

x < - 2

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Guys I really need help with these too thanks u before!!!!
Natali5045456 [20]
Hey!!

here is your answer >>>

1) 3x - 10 > 11

let's take this as 3x - 10 = 11

3x = 21

x = 7
So, The numbers of X are always more than 7

2) 9x + 2 < 5

9x + 2 = 5

9x = 3

x = 1÷2

The numbers of X are always less than 1 ÷ 2

3) 2x + 8 < 6

2x + 8 = 6

2x = 2

x = 1

The numbers of X are less than 1

4) 4x - 3 < 12

4x - 3 = 12

4x = 15

x = 15 ÷ 4

The numbers of X are less than 15 ÷ 4

5) 2 ( 9 + x ) > 20

2 ( 9 + x ) = 20

9 + x = 10

x = 1

The numbers of X are more than 1

We can solve the rest using this

Hope my answer helps!
5 0
4 years ago
Which statement is true?
Lera25 [3.4K]

Answer:

C is true as 2 pionts = a line

Step-by-step explanation:

I'm smartest in my class

6 0
2 years ago
Anyone know the answer?
lara [203]
The hypotenuse MO is found from the Pythagorean theorem to be
  MO = √(12² + 5²) = √(144+25) = √169 = 13

The sine of angle O is the ratio of the opposite side (MN=12) to the hypotenuse (MO=13). The appropriate choice is ...
  C. 12/13
3 0
4 years ago
I need the answer. Please help
AveGali [126]

Answer:

I think it is period but I don't know what period equalls

Step-by-step explanation:

8 0
3 years ago
Yan has already finished 3/5 of the 45 math problems he was assigned today. Each math problem took him 1 4/5 of a minute to comp
Serga [27]
27 minuets
3/5 of 45 = 27
4/5 of a minuet = 48
18 X 1.48 = 26.64
ROUND = 27
6 0
3 years ago
Read 2 more answers
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