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Gre4nikov [31]
3 years ago
11

What value of x is in the solution set of 9(2x + 1) < 9x - 18?

Mathematics
2 answers:
NikAS [45]3 years ago
7 0
B. Should be the answer :)
Alex17521 [72]3 years ago
6 0

Answer:

b. -3

Step-by-step explanation:

9(2x+1) < 9x-18

(distribute the 9)

18x+9 <9x-18

(subtract 9 from both sides)

18x<9x-27

(subtract 9x from both sides)

9x<-27

(divide both sides by 9)

x<-3

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Which series of transformations shows that heptagon A is congruent to heptagon B?
Arte-miy333 [17]

Answer: Reflect heptagon A over the y-axis, rotate it 90° counterclockwise about the point (4, 3), and translate it 8 units down.

Step-by-step explanation:

3 0
3 years ago
If the mean score on a stress test is 5, the standard deviation is 2, and the distribution is normal, what would be the mean val
expeople1 [14]

Answer: 0

Step-by-step explanation:

Given that :

Mean score on test = 5

Standard deviation on test = 2

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The mean value when Converted to a z - distribution :

Zscore = (x - mean) / standard deviation.

Hence z score for the mean score will be :

X = mean score

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5 0
3 years ago
13.) –3(y+3)=2y+3<br> What is the answer to this
Morgarella [4.7K]
Answer is -12/5 or -2.4
6 0
3 years ago
Read 2 more answers
Which statements are true about the ordered pair (2, 3) and the system of equations?
mel-nik [20]

substitute the ordered pair (2, 3 )  into the 2 equations

(3 × 2 ) + (4 × 3 ) = 6 + 12 = 18 → True

(2 × 2 ) - (2 × 3 ) = 4 - 6 = - 2 → False

Hence the ordered pair (2, 3 ) is not a solution to the system of linear equations.

When (2, 3 ) is substituted into the first equation, the equation is true.

When (2, 3 ) is substituted into the second equation, the equation is false.



8 0
3 years ago
A/2.8 x 2.8<br> "A over 2.8 times 2.8"
Jobisdone [24]
A/2.8 • 2.8
Division and multiplication are opposite of each other, meaning they cancel out.
This means that a/2.8 • 2.8 is a.
No matter what a is equal to, the answer is a itself.
Once a is divided by 2.8, it is then multiplied by 2.8, bringing us back to the original value of a.

Answer:
a/2.8 • 2.8 = a

Hope this helps!
7 0
3 years ago
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