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Dafna11 [192]
3 years ago
8

Omg i'm confuse 7(x+4) =9(x -2)

Mathematics
2 answers:
Katarina [22]3 years ago
4 0
7(x+4) =9(x -2) \\
7x+28=9x-18\\
2x=46\\
x=23
adelina 88 [10]3 years ago
3 0
7(x+4) = 9(x-2)
7x+28 = 9x-18
28+18 = 9x-7x
46 = 2x
46/2 = x
<u>23 = x</u>
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I NEED HELP PLZ PLZ PLZ PLZ PLZ DON'T DELETE!
Vaselesa [24]

Answer:

1/100000

Step-by-step explanation:

1/10*1/10*1/1000=1/100*1/1000=1/100000

4 0
3 years ago
What is the rule of -3,18,-108,—,—,—
lisabon 2012 [21]

Hi! ❄

   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

The rule for this sequence is 'multiply by -6'.

Verification ↓

-3*(-6)\stackrel\checkmark{=}18

18*(-6)\stackrel\checkmark{=}-108

So the rule for the sequence is 'multiply by -6'

And the Common ratio is -6.

Hope that made sense !!

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5 0
2 years ago
Read 2 more answers
I need the answers for 5 and 6 please and make sure they are accurate , thank you :)
velikii [3]

Answer:

5. 6+6i

6. -2+(6\sqrt{3})i

Step-by-step explanation:

well, u just need to calculate

7 0
3 years ago
The students at a High School earned money for an international animal rescue foundation. 82 seniors earned an average $26.75 pe
Anon25 [30]

Answer: A. $16.13

Step-by-step explanation:

Total students = 82+74+96+99 =351

Sum of earnings of 82 seniors  = $26.75  x 82= $2193.5

Sum of earnings of 74 juniors  = $12.25 x 74 = $906.5

Sum of earnings of 96 sophomores  = $15.50  x 96 = $1488

Sum of earnings of 99 freshmen  =  $10.85 x 99 = $1074.15

Total earnings =  $2193.5  + $906.5+  $1488 +$1074.15

= $5662.15

(Total earnings) ÷ (Total students )

= $5662.15÷ 351

= $16.13

4 0
3 years ago
For the statement? below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify wh
snow_tiger [21]

Answer:

Option E - sigma greater than or equal to $327

Step-by-step explanation:

In this question, we are testing whether the standard deviation of the base price of a certain type of all-terrain vehicle is at least $327.

Now, standard deviation is denoted by the symbol sigma(σ). Since the test is saying it should be at least $327, it means it should either be equal to $327 or greater than $327.

Thus, we would use the symbol ≥ which means "greater than or equal to".

Thus, the claim as a mathematical statement would be;

sigma greater than or equal to $327

5 0
3 years ago
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