Long divison plss hep 52245 divided by 215

Mathematics

1 answer:

Lyrx [107]2 years ago

6 0

The answer to 52245 divided by 215 is 243

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The area of a rectangular rug is given by the trinomial r^2-4r-77. What are the possible dimensions of the rug? Use factoring.

Softa [21]

When you factor the equation...

r^2-4r-77

r^2+7r-11r-77

r(r+7)-11(r+7)

(r-11)(r+7) so each parenthetical term is a dimension.

Note that r>11 though for any possible real solution.

4 0

3 years ago

PLEASE HELPPPPP MATH

Stels [109]

Answer:

Use the equation 250+25w=400+20w

Step-by-step explanation:

Replace w with one of the answers until you get the right one.

pretty sure its 35 but I don't have a calculator with me so double check

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3 years ago

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Lyrx [107]

Answer:

Step-by-step explanation:

4 0

2 years ago

Please show me how to solve for Xsquared - 21.75X = -15.75. I have the solution but do not know how to solve it.

Andreas93 [3]

$x^2-21.75x=-15.75 \\
x^2-21.75x+15.75=0$

Use the quadratic formula:
$x^2-21.75x+15.75=0 \\ \\
a=1 \\ b=-21.75 \\ c=15.75 \\ b^2-4ac=(-21.75)^2-4 \times 1 \times 15.75=473.0625-63=410.0625 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-(-21.75) \pm \sqrt{410.0625}}{2 \times 1}=\frac{21.75 \pm 20.25}{2} \\
x=\frac{21.75-20.25}{2} \ \lor \ x=\frac{21.75+20.25}{2} \\
x=\frac{1.5}{2} \ \lor \ x=\frac{42}{2} \\
x=\frac{15}{20} \ \lor \ x=21 \\
x=\frac{3}{4} \ \lor \ x=21 \\
\boxed{x=\frac{3}{4} \hbox{ or } x=21}$

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3 years ago

PLEASE HELP VENN DIAGRAM!

algol13

Answer:

Yes.

Step-by-step explanation:

Since there is an overlap, that does mean some people with brown hair do wear watches, but not all of them do. Hence it's independent.

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3 years ago