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3 years ago

I really need help this is 6th grade

Mathematics

2 answers:

jeyben [28]3 years ago

7 0

Hmm Most Likely 2nd one

Lena [83]3 years ago

6 0

It’s A I think
Cuz I used my brain

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A 50-ft chain with mass density 5 lb/ft is initially coiled on the ground. How much work is performed in lifting the chain so th

tatyana61 [14]

Density is mass/ volume so the answer is 10

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2 years ago

If the pictured triangles are congruent what reason can be given

igor_vitrenko [27]

Answer:

SAS Postulate.

Step-by-step explanation:

Two triangles are congruent if anyone of the following postulates is true:

SAS - Two corresponding sides and the included angles are congruent to each other.

SSS - All the three corresponding sides are congruent.

ASA - Two corresponding angles and the included sides are congruent to each other.

AAS - Two corresponding consecutive angles and sides adjacent to either of the angles are congruent.

HL - If the corresponding hypotenuses and one corresponding legs are congruent to each other.

Here, in the figure, two corresponding sides and the included angle between them are congruent to each other.

So, the two triangles are congruent by SAS postulate.

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3 years ago

On a coordinate plane, 5 trapezoids are shown. Trapezoid L M N P is in quadrant 2 and has points (negative 2, 3), (negative 2, 6

blondinia [14]

Answer: C

Step-by-step explanation:

Reflecting over the x axis, the image of a point in Quadrant 2 is a point in Quadrant 3.

5 0

2 years ago

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Can someone please work through this one question so I know what to do for the other 9? How the testing system works for me is t

Aloiza [94]

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. Scientific notation is written by writting a decimal number between 1 and 10 together with an exponent of 10.

Given
$(4.23\times10^{12})\div(9.0\times10^6)$

First, using distributive property of numbers, seperate the decimal numbers and the exponents of 10, we have
$(4.23\div9.0)\times(10^{12}\div10^6)=0.47\times10^{12-6}=0.47\times10^6$

Because, scientific notation requires that the decimal number part be a number between 1 and 10, we move the decimal point 1 place foward and subtract 1 from the exponent of 10.

Therefore, $(4.23\times10^{12})\div(9.0\times10^6)$
in standard notation is
$4.7\times10^5$

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3 years ago

Evaluate each expression . 1.) 1 + 4 • 6 - 3

Annette [7]

I calculated the expression and I got 22.

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3 years ago

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