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2 years ago

Please help!!! This is 12 points!!! I’ll mark brainliest!!!!

Mathematics

2 answers:

Nady [450]2 years ago

6 0

Answer:

x: 23

y: -46

Step-by-step explanation:

so sorry if this is wrong, but i think thats it

Nady [450]2 years ago

3 0

She deos not explain to anyone she answers wrong answer to people
Look at her points

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to mail a cardboard box, you measure its size and mass. It is 55cm long , 25cm wide and 20 cm high. The mass of the box is 4kg.

ch4aika [34]

Answer:

Density is usually expressed as grams per cubic centimeter.

Volume = 55 * 25 * 20 = 27,500 cc

Density = Mass / Volume = 4,000 grams / 27,500 cc

= 0.1454545455 grams/cc

which is an extremely low density

Step-by-step explanation:

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3 years ago

Which expression is equivalent to (1/16)^-4<br> Pls help 30 points timed

worty [1.4K]

The first one! It is using the distributive or associative property!

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2 years ago

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Find the center of the circle whose equation is x² + y² = 4.

Varvara68 [4.7K]

Answer:

The center of circle is $(0,0)$

Step-by-step explanation:

We need to find the center of the circle of the equation $x^{2}+y^{2}=4$

Since, the general equation of circle is $(x-h)^{2}+(y-k)^{2} = r^{2}$

Where (h,k) is center of circle and r is radius.

Re-write the circle equation is $x^{2}+y^{2}=4$ as,

$x^{2}+y^{2}=2^{2}$

Compare $x^{2}+y^{2}=2^{2}$ with $(x-h)^{2}+(y-k)^{2} = r^{2}$

so, $(x-0)^{2}+(y-0)^{2} = 2^{2}$

Hence, the center of circle is $(0,0)$

4 0

2 years ago

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The volume of a cube is 27 cubic inches. What is the length of an edge? Explain.

Lilit [14]

Answer:

Step-by-step explanation:

The formula of a volume of a cube:

$V=a^3$

a - length of an edge

We have V = 27 in³. Substitute:

$a^3=27\to a=\sqrt[3]{27}\\\\a=3\ in$

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2 years ago

Need help have no idea how to do this

Anna11 [10]

Number one is parallel

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2 years ago