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3 years ago

9

Plz help me with it

2 answers:

Gekata [30.6K]3 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]3 years ago

5 0

$\sqrt{2x + 7} + 1 = \sqrt{2x + 14 } \\ x = 1$

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3 years ago

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If a line with a slope of -2 crosses the y-axis at (0,3). What is the equation of the line?

baherus [9]

It technically would be y=3x-3 in the y=mx+b formula, but it could also be rewritten 3x-y=3. Hope this helps!

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3 years ago

Write the equation of the line, in slope-intercept form, with the following information: slope: -3/8 point: (16, -1)

irakobra [83]

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I used the equation and plugged in the numbers

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3 years ago

Orlando invests $1000 at 6% annual interest compounded daily and Bernadette invests $1000 at 7%

Montano1993 [528]

Answer:

6 Years

Step-by-step explanation:

Orlando invests $1000 at 6% annual interest compounded daily.

Orlando's investment = $A=1000(1+\frac{0.06}{365})^{(365\times t)}$

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$A=1000(1+\frac{0.06}{365})^{(365\times 5)}$

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8 0

3 years ago

Find the area of the rectangle below by multiplying its length and width.

wariber [46]

Hello!

When multiply binomials together, we should use the FOIL method.

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Now, we can multiply in accordance with the FOIL method.

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3 years ago