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Mariana [72]
2 years ago
9

(3x+7)(x+7)=0What are the two possible values?​

Mathematics
2 answers:
lana [24]2 years ago
6 0

For the given equation, either 3x + 7 = 0 or x + 7 = 0

Now,

  • 3x + 7 = 0

  • 3x = -7

  • x = -7/3

or

  • x + 7 = 0

  • x = -7

So, possible values of x is : -7 and -7/3

madam [21]2 years ago
5 0

(3x + 7)(x + 7) = 0 \\  \\  \\3x + 7 = 0 \\  \\ 3x =  - 7 \\  \\ x =  \frac{ - 7}{3} . \\  \\  \\ x + 7 = 0 \\  \\ x =  - 7.

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Please write step by step of how you got the answer. Thankyou
stealth61 [152]

Answer:

The solution in the attached figure

Step-by-step explanation:

step 1

Place the numbers  -4, 4, 0, and -3 in the left side

Adds the numbers

-4+4+0-3=-3 ----> is correct

step 2

Place the numbers  3, -1, and -2 in the right side

Adds the numbers

-3+3-1-2=-3 ----> is correct

step 3

Place the numbers  1 and 2 in the base side

Adds the numbers

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The solution in the attached figure

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3 years ago
Amy is scuba diving. She starts at – 15.5 m relative to the ocean surface. She swims
solniwko [45]

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Negatives work like positives

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nata0808 [166]

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Read 2 more answers
Help on 3. And 4. Thank you!
chubhunter [2.5K]

Answer:

#3.) The initial value of  16 gal at  x = 5 minutes means that 16 gallons of water was present 5 minutes after the barrel started leaking.

#4.) Find how many minutes until the barrel is empty of water.

Let y = 0,  to solve for time x.

0 = (-2/5)*x + 18

(2/5)*x = 18

x = (5/2)* 18 = 5*9 = 45 minutes

Up to and after 45 minutes, the barrel is empty of water.

Step-by-step explanation:

#2.)  

minutes:      5, 10, 15, 20

water(gal):  16, 14, 12, 10

Find slope:    slope m = (14 - 16)/(10 - 5) = -2/5

y - 10 = (-2/5)*(x - 20)

y - 10 = (-2/5)* x  + 8

y = (-2/5)*x + 18

rate of change slope means that for every minute  2/5 gallons of water is lost

#3.) The initial value of  16 gal at  x = 5 minutes means that 16 gallons of water was present 5 minutes after the barrel started leaking.

#4.) Find how many minutes until the barrel is empty of water.

Let y = 0,  to solve for time x.

0 = (-2/5)*x + 18

(2/5)*x = 18

x = (5/2)* 18 = 5*9 = 45 minutes

4 0
3 years ago
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