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4 years ago

List three values that are solutions to the inequality 2x ≥ 10

Mathematics

1 answer:

s344n2d4d5 [400]4 years ago

3 0

Answer:

x=5 x=8 x=10

explanation:

anything greater than 5 would make the inequality true because 5×2=10

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4) -5(2x + 4y) is equivalent to

Novosadov [1.4K]

Answer:

$- 10x - 20y$

Step-by-step explanation:

$- 5(2x + 4y) \\ = - 10x - 20y$

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4 years ago

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Find the area of the triangle and round to the nearest tenth

Nana76 [90]

Answer: 73.5mi²

Step-by-step explanation:

Area of triangle = 1/2×b×h

= 1/2×14×10.5

= 7×10.5

=73.5mi²

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3 years ago

-5x+10x+3=5x+6 Along with an explanation please.

vitfil [10]

There is no solution to this equation

X≠0

The answer would be 3=6 which is an invalid answer therefor an equation with no solution.

-5x+10x+3=5x+6

Combine like terms first

5x+3=5x+6

After this whether you make it 10x=9 that’s still an invalid answer but if you subtracted 5x on both sides it’d be 3=6

Therefore x≠0

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4 years ago

Solve by substitution -3x-2y=5.5 x+3y=7.5

Naddika [18.5K]

$\bf \begin{cases} -3x-2y=5.5\\[-0.5em] \hrulefill\\ x+3y=7.5\\ \boxed{x}=7.5-3y \end{cases}~\hspace{5em}\stackrel{\textit{substituting \underline{x} in the 1st equation}}{-3\left( \boxed{7.5-3y} \right)-2y=5.5} \\\\\\ -22.5+9y-2y=5.5\implies -22.5+7y=5.5\implies 7y=28 \\\\\\ y=\cfrac{28}{7}\implies y=4 \\\\\\ \stackrel{\textit{substituting the found \underline{y} in the 2nd equation}}{x+3(4)=7.5\implies x+12=7.5}\implies x=-4.5 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill (-4.5,4)~\hfill$

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3 years ago

13 cm 5 cm 7 cm 12 cm Find the surface area.

Radda [10]

Answer: 37cm

Step-by-step explanation: 5cm + 13cm + 7cm + 12cm = 37cm

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2 years ago

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