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3 years ago

How are Regrouping and partial product alike and different

1 answer:

3 0

Partial products is breaking down every number in multiplication and adding them. Regrouping is grouping number them adding them.They are alike because they both involve breaking down the numbers and adding them. They are different because one is taking all the numbers broken down, while the other is just a couple of the number.

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Which reason best explains why m^10n^3 is NOT equal to (mn)^13?

Hunter-Best [27]

Answer:This law of exponents can only be used when the bases are equal.

Step-by-step. explanation:

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2 years ago

Joshua is 1.45 meters tall. at 2 p.m., he measures the length of a tree's shadow to be 31.65 meters. he stands 26.2 meters away

geniusboy [140]

Answer:

hes a titan

Step-by-step explanation:

3 0

2 years ago

What is the volume of a cube with edge length 2/3 yard

KiRa [710]

(2/3)^3 = 8/27 cubic yards

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3 years ago

The sides of a triangle have lengths of x, x + 4, and 20. If the longest side is 20, which of the following values of x would ma

GuDViN [60]

Answer:

12<x<16

Step-by-step explanation:

if c^2 > a^2 + b^2

then the triangle is obtuse

since 20 is the longest side

20^2 > x^2 + (x+4)^2

simplify

400 > x^2 + (x+4)(x+4)

FOIL

400 > (x^2 ) + (x^2 + 4x+4x+16)

combine like terms

400 > (2x^2 + 8x+16)

divide by 2

400/2 > 2x^2 /2 + 8x/2 + 16/2

200 > x^2 + 4x +8

subtract 200 from each side

0> x^2 + 4x +8-200

0> x^2 +4x-192

Factor

0 > (x-12) ( x+16)

using the zero product property

0> x-12 0 > x+16

12>x -16>x

x must be greater than 12

we know the longest side is 20

x+4 < 20

subtract 4

x< 16

x>12 and x < 16

12<x<16

5 0

3 years ago

2.1x 10^8 is how many times the value of 4.2 x 10^2?

Airida [17]

Answer:

Step-by-step explanation:

If you want to find out how many times larger something is than something else, you have to divide. We will set up a problem that looks like this:

$\frac{2.1*10^8}{4.2*10^2}$

Diving 2.1 by 4.2 gives us .5; to divide the exponents, we remember that if we divide like bases we have to subtract the exponents. 10 is our base in both cases, so 8 - 2 gives us 6, resulting in:

$.5*10^6$

However, this isn't in scientific notation. We need to move the decimal one more place to the right, which in trn reduces the exponent by 1:

$5*10^5$

6 0

3 years ago