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3 years ago

Helpp pleasee! Actual help not fake people, you will be reported

Mathematics

1 answer:

zalisa [80]3 years ago

6 0

Answer:

side AB

Step-by-step explanation:

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What is the value of 1/3 x^2 + 5.2y when x = 3 and y = 2?<br><br> PLZ HELP!!!

olasank [31]

The first step in solving this is to substitute x with 3 and y with 2, so that
$\frac{1}{3} x^{2} +5.2y$
becomes
$\frac{1}{3} (3)^{2} +5.2(2)$
Then simply solve using the order of operations.
First exponents (there are no parentheses)
$\frac{1}{3} 9 +5.2(2)$
Then multiply and divide
$3+10.4$
And finally add and subtract
$13.4$
Therefore the value <span>of 1/3 x^2 + 5.2y when x=3 and y=2 is 13.4</span>

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3 years ago

Please help!!!

Nonamiya [84]

Answer:

c. $2a^3x^4-3a^3x^3+a^4x^2$

d. $63x^5y^3-30x^2y^4-7x^3y^2$

Step-by-step explanation:

For this exercise you need to remember the following:

1. The multiplication of signs:

$(+)(+)=+\\(-)(-)=+\\(-)(+)=-$

2. The Product of powers property, which states that:

$(a^m)(a^n)=a^{(m+n)}$

3. The Distributive property:

$a(b\±c)=ab\±ac$

Knowing that, you can solve the multiplication of the polynomials:

c. $(-2ax^2+3ax-a^2)(-a^2x^2)=\\\\=(-2ax^2)(-a^2x^2)+(3ax)(-a^2x^2)+(-a^2)(-a^2x^2)=2a^3x^4-3a^3x^3+a^4x^2$

d. $(6.3x^3y-3y^2-0.7x)(10x^2y^2)=\\\\=(6.3x^3y)(10x^2y^2)+(-3y^2)(10x^2y^2)+(-0.7x)(10x^2y^2)=63x^5y^3-30x^2y^4-7x^3y^2$

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3 years ago

Select values to transform the figure.

Ivenika [448]

Answer:

Its B

Step-by-step explanation:

Trust me!

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3 years ago

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Dvinal [7]

Answer:

w equal to 9z

or z equals to w/9

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3 years ago

15 POINTS!!! Information about the age of participants in a robotics competition is below:

statuscvo [17]

The middle 50% of the data falls between 13 and 31.

The middle 50% of any data set falls within the box of a box-and-whisker plot. This particular box extends from 13 to 31, so this is the middle 50% of the data.

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3 years ago

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