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3 years ago

1a. Tell whether the angles are adjacent or vertical. *

Mathematics

1 answer:

Anton [14]3 years ago

3 0

Answer:

it is adjacent and the answer to 1b is 146

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3 years ago

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AleksAgata [21]

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3 years ago

What is the answer to this math problem?

Over [174]

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2 years ago

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How to slove this: x-5/3=x-3/5

sladkih [1.3K]

Answer: There are no solutions.

Step-by-step explanation: x - 5/3 = x - 3/5

x + -5/3 = x + -3/5

x + -5/3 - x = x + -3/5 - x

-5/3 = -3/5

-5/3 + 5/3 = -3/5 + 5/3

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7 0

4 years ago

What is the solution for x in the given equation? The square root of 9x +7 + the square root of 2x = 7

cestrela7 [59]

Answer:

The solution is x =2 for the given equation $\sqrt{9x+7} +\sqrt{2x}=7$

Step-by-step explanation:

We need to find the solution for x in the given equation.

$\sqrt{9x+7} +\sqrt{2x}=7$

Solving:

Subtract $\sqrt{2x}$ from both sides

$\sqrt{9x+7} =7-\sqrt{2x}$

Taking square on both sides

$(\sqrt{9x+7})^2 =(7-\sqrt{2x})^2\\Using\,\, (a-b)^2 = a^2-2ab-b^2\\9x+7=(7)^2-2(7)(\sqrt{2x})+(\sqrt{2x})^2\\9x+7=49-14\sqrt{2x}+2x\\9x-2x+7-49=-14\sqrt{2x}\\7x-42=-14\sqrt{2x}\\Taking\,\,square\,\,on\,\,both\,\,sides\\(7x-42)^2=(-14\sqrt{2x})^2\\49x^2-2(7x)(42)+(42)^2= 196(2x)\\49x^2-588x+1764=392x\\49x^2-588x+1764-392x=0\\49x^2-980x+1764=0\\Using \,\,quadratic \,\, equation \,\,to \,\, find \,\, value \,\, of \,\, x \\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\a= 49, \, b= -980 \,\,and\,\, c = 1764$