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densk [106]
3 years ago
11

I need number 7 and 8 answered

Mathematics
1 answer:
Taya2010 [7]3 years ago
7 0
The first one is the second option and the second one is the second option
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Hi, please help me out :)) thank you
r-ruslan [8.4K]

Answer:

d =32

Step-by-step explanation:

\sqrt{7d+1}-4=11\\\\\mathrm{Add\:}4\mathrm{\:to\:both\:sides}\\\sqrt{7d+1}-4+4=11+4\\\\Simplify\\\sqrt{7d+1}=15\\\\\mathrm{Square\:both\:sides}:\quad 7d+1=225\\7d+1=225\\\\\mathrm{Solve\:}\:7d+1=225:\\\quad d=32

4 0
3 years ago
Read 2 more answers
Balance C4H6O3 + H2O −−→ C2H4O2
anzhelika [568]

Answer:

solution given:

balanced: C4H6O3 + H2O −−→2 C2H4O2

4 0
3 years ago
Determine the slope of the line through the points (2,3) and (4,8)
11Alexandr11 [23.1K]
Answer: the slope of the line is 4
6 0
3 years ago
It allows us to express a very small or very large number in compact form, what is this.​
lesya692 [45]
Scientific notation



Explanation:







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4 0
2 years ago
Can someone help me not sure about this one lol
Ganezh [65]

Answer:

Step-by-step explanation:

Multiply the numerator and denominator by two, you get 18/8 now if you put 16 as x, 16 + 2 = 18 and finishing the problem, you would get 18/8

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