Ask question

Ask question

All categories

2 years ago

9

Plz help me with it

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

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

You might be interested in

Aleonysh [2.5K]

Answer:

AB // CD and AD // BC, then ABCD is a parallelogram

Step-by-step explanation:

Step 2: Show AD // BC

A = (-3 , 3) and D = (0 , 0)

Find the slope of AD

$m_{AD}=\frac{0-3}{0--3}=\frac{-3}{3}=-1$

B = (2 , 5) and C = (5 , 2)

$m_{BC}=\frac{2-5}{5-2}=\frac{-3}{3}=-1$

The slope of AD = the slope of BC

So AD // BC because they have the same slope

Step 3:

Each two opposite sides are parallel in quadrilateral ABCD

So the quadrilateral is a parallelogram

8 0

3 years ago

Select all that apply.

Musya8 [376]

Answer:

The answer to this question is 2.137931034

Step-by-step explanation:

Just divide it by a calculator.

6 0

2 years ago

Please help me out !!!

asambeis [7]

Answer:

i cant see the exponent sorry

Step-by-step explanation:

5 0

2 years ago

What is a mixed radical in simplest form? Use square root number 72.

puteri [66]

It is 8 because you would do 9x8=72

7 0

2 years ago

Solve: 9(y-2)-8y=-16

son4ous [18]

Answer:

y=2

Step-by-step explanation:

9(y-2)-8y=-16

9y-18-8y=-16

9y-8y=-16+18

y=2

Hope this helps!

4 0

3 years ago

Read 2 more answers