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4 years ago

13

What does three sevenths plus two fifths equal?

1 answer:

Varvara68 [4.7K]4 years ago

4 0

Your answer would be 29/35.

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6 is a Natural, Whole, and Integer number,<br> True or false

KengaRu [80]

Answer:

This is true!

Step-by-step explanation:

It is natural because it is a positive integer greater than 0, it's whole because its not negative and it is an integer.

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3 years ago

How do I simplify the expression<br><br> 8x+2x-3y-9x

zloy xaker [14]

X-3y because 8x+2x-9x is x

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3 years ago

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Help me quick please look at the pic

lina2011 [118]

It’s 140 degrees. The angles are congruent from their pair.

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3 years ago

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A solid metal sphere of radius 32cm is melted down and recast to make 64 identical small spheres.what will be the radius of each

zhuklara [117]

$V_1=\frac{4}{3}\pi R^3\\\\R=32cm\\\\V_1=\frac{4}{3}\pi\cdot32^3=\frac{131072}{3}\pi\ (cm^3)\\\\V_2=V_1:64\\\\V_2=\frac{131072}{64}\pi:64=\frac{131072}{3}\pi\cdot\frac{1}{64}=\frac{2048}{3}\pi\ (cm^3)\\\\r=?\\\\V_2=\frac{4}{3}\pi r^3$

$\frac{4}{3}\pi r^3=\frac{2048}{3}\pi\ \ \ /:\pi\\\\\frac{4}{3}r^3=\frac{2048}{3}\ \ \ /\cdot\frac{3}{4}\\\\r^3=512\\\\r=\sqrt[3]{512}\\\\r=8\ (cm)\leftarrow answer$

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3 years ago

If the roots of an equation are x = 3±i, then the equation is x2+ ______

Georgia [21]

Answer:-(6+i)x+10+i3

Step-by-step explanation:

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3 years ago