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3 years ago

Help please immediately

Mathematics

1 answer:

stealth61 [152]3 years ago

4 0

Answer:

I think its A because a deck of cards only have 52 cards

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Nesecito ayuda con esta operación <br> ( -1/5 +2/5) +4/7

Elina [12.6K]

No se la respuesta lo siento

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3 years ago

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15 points!! Please help

Ivahew [28]

Answer:

3 feet

Step-by-step explanation:

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3 years ago

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the lengths of the sides of a triangle are shown. 8.73, 12.4, and 10.075. what is the perimeter of the triangle

ElenaW [278]

Answer:

31.205

Step-by-step explanation:

The perimeter is the sum of the side lengths:

8.73 +12.4 +10.075 = 31.205

_____

If you're after an answer that has the appropriate precision (assuming these are measured values), that would be one that is rounded to 1 decimal place: 31.2.

7 0

3 years ago

If 5.5 ounces of silver is worth $80 how much could you buy with $15 (setup and solve a proportion)

Liono4ka [1.6K]

Answer:

Problem-solving requires persistence as much as it requires ingenuity. When you get stuck, or solve a problem incorrectly, back up and.

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Step-by-step explanation:

6 0

3 years ago

X-2y=18 2x+y=6 parallel perpendicular or neither

sergey [27]

<h3>Therefore they are perpendicular.</h3>

Step-by-step explanation:

A equation of line is

y =mx +c

Here the slope of the line is m.

Given equations are

x - 2y = 18

⇔-2y = -x +18

$\Leftrightarrow y =\frac{1}{2} x -9$ ............(1)

and 2x + y = 6

⇔y = -2x +6 ............(2)

Therefore the slope of equation (1) is $(m_1)$ = $\frac{1}{2}$

Therefore the slope of equation (2) is $(m_2)$ = -2

If two lines are perpendicular, when we multiply their slope we get -1.

therefore,

$m_1. m_2$ = $\frac{1}{2}$ . (-2) = -1

Therefore they are perpendicular.

4 0

3 years ago