3 years ago

HELP worth 20 pts :Which are equations? Select all that apply

Mathematics

2 answers:

dolphi86 [110]3 years ago

7 0

Answer:

12 = 3/4x, x - 4.8 = 9, and x - 3.1x = 14.7 + 12

Step-by-step explanation:

xeze [42]3 years ago

4 0

Answer:

12 = 3/4x, x - 4.8 = 9, and x - 3.1x = 14.7 + 12 are all equations because you have an equal sign that has you solve for each side and you can solve for the variable, unlike with the other ones you can't solve for the variable.

Step-by-step explanation:

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Step2247 [10]

Answer:

$\sqrt{80}$

80 is the number in the square root

Step-by-step explanation:

$d = \sqrt{(x_{2}-x_{1} )^{2} +(y_{2}-y_{1} )^{2} } \\d = \sqrt{(4-(-4) )^{2} +(5- 1 )^{2} }\\d = \sqrt{(4+4 )^{2} +4^{2}\\d = \sqrt{8^{2} +4^{2} }\\d=\sqrt{64 +16}\\d=\sqrt{80}$