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maw [93]
4 years ago
14

SOMEBODY HELP ME PLEASE

Mathematics
1 answer:
saul85 [17]4 years ago
3 0

4) \:  {x}^{2}  + 11x + 28 = 0 \\  \Leftrightarrow  {x}^{2}  + 7x + 4x  + 28 = 0 \\ \Leftrightarrow x(x + 7) + 4(x + 7) = 0 \\ \Leftrightarrow (x + 4)(x + 7) = 0 \\\Leftrightarrow x =  - 4 \: \vee \: x =  - 7 \\  \\ 5) \: (3a + 8)(3 {a}^{2}  - a - 7) \\  = 9 {a}^{3}  - 3 {a}^{2}  - 21a + 24 {a}^{2}  - 8a - 56 \\  = 9 {a}^{3}  + 21 {a}^{2}  - 29a - 56

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Helppppppp meeeeee plzzzz
bulgar [2K]
Non proportional I think. Wait for someone else to answer
8 0
3 years ago
Find the constant of proportionality for the table and write in the form y = kx.
atroni [7]

Answer:

y=4x

Step-by-step explanation:

it's enough to use first column (x=6, y=24). Inserting this data into equation y=kx, we can calculate k.

24=k*6

6k = 24

k = 24/6

k = 4

6 0
4 years ago
82 x3 +4 +8 +5 +3<br> I KNOW THE ANSWER JUST SOME POINTS FOR FREE
vichka [17]

Answer:

266

Step-by-step explanation:

5 0
3 years ago
An ice cream machine produced 45 ice cream sandwiches per minute. After reconditing, its speed increased to 54 ice cream sandwic
Tanya [424]
<h2>Percent of speed the machine increase is 20%</h2>

<h2>Given that;`</h2>

Number of ice cream produced before = 45

Number of ice cream produced after = 54

<h2>Find:</h2>

Percent of speed the machine increase

<h2>Computation:</h2>

Percent of speed the machine increase = [Number of ice cream produced after - Number of ice cream produced before] / Number of ice cream produced before

Percent of speed the machine increase = [(54 - 45) / 45]100

Percent of speed the machine increase = [9 / 45]100

Percent of speed the machine increase = 20%

<h2>Learn more:</h2>

brainly.com/question/15013012?referrer=searchResults

4 0
2 years ago
Read 2 more answers
Need help, Due ASAP!
VMariaS [17]

Stop posting on here and do the work yourself I usually don't mind helping people but in some cases, I need to just say do it by yourself look at notes look up the answer there are a million things you can do instead of spam posting all your questions good day

4 0
3 years ago
Read 2 more answers
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