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marin [14]
2 years ago
9

Plz help me with it

Mathematics
2 answers:
Gekata [30.6K]2 years ago
8 0

Answer:  a. 1

<u>Step-by-step explanation:</u>

\sqrt{2x+7}+1=\sqrt{2x+14}\\\\(\sqrt{2x+7}+1)^2=(\sqrt{2x+14})^2\\\\2x+7+2\sqrt{2x+7}+1=2x+14\\\\2x+8+2\sqrt{2x+7}=2x+14\\\\2\sqrt{2x+7}=6\\\\\sqrt{2x+7}=3\\\\(\sqrt{2x+7})^2=(3)^2\\\\2x+7=9\\\\2x=2\\\\x=1\\\\\\Check:\\\sqrt{2(1)+7}+1=\sqrt{2(1)+14}\\\\\sqrt9+1=\sqrt16\\\\3+1=4\ \checkmark

vovangra [49]2 years ago
5 0

\sqrt{2x + 7}  + 1 =  \sqrt{2x + 14 }  \\ x = 1
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telo118 [61]
Answer:
y = x + 11

Explanation:
The general form of an equation is:
y = mx+c
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1- getting the slope:
We are given that the line is parallel to GH. This means that:
slope of the line = slope of GH
We have G as (-2,2) and H as (2,6)
slope of GH = (y2-y1) / (x2-x2)
slope of GH = (6-2) / (2--2) = 1
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We are given that point (-5,6) passes through the line. This means that this point satisfies the equation of the line. So, we will substitute with this point in the equation and solve for c as follows:
y = x + c
6 = -5 + c
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Based on the above, the equation of the line is:
y = x + 11

Hope this helps :)
7 0
3 years ago
How many times larger is 8×10^9 than 2×10^7​
elixir [45]

Answer:

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Step-by-step explanation:

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2 years ago
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= -2(1/3x)
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puteri [66]

Answer:

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Step-by-step explanation:

3 0
2 years ago
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quester [9]

Answer:

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Step-by-step explanation:

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