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3 years ago

Thanks for answering it in advance :>

Mathematics

1 answer:

Shtirlitz [24]3 years ago

8 0

50 in^2 i think maybe idfk

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A window washer cleaned 38 windows in 2 hours. At this rate, how many windows did he clean in 7 hours? Help before I pass out tr

shutvik [7]

Answer: 133 windows

Step-by-step explanation:

Step 1: 38/2=19

Step 2: 19*7=133

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3 years ago

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What is the vertex of y=x^2+4x+3

AnnyKZ [126]

Answer:

(-2, -1)

Step-by-step explanation:

This is a quadratic equation in standard form, and a = 1, b = 4 and c = 3.

The x-coordinate of the vertex is given by the formula

-b -4

x = --------- which here has the numerical value x = -------- = -2

2a 2

Finally, we evaluate y=x^2+4x+3 at x = -2 to find the y-coordinate of the vertex:

y = (-2)^2 + 4(-2) + 3 = -1

The vertex is at (-2, -1).

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3 years ago

Find the mean, median, and mode(s) of the data. Do not round. 12, 13, 40, 95, 88, 7, 95

Vaselesa [24]

Mean:350
Median:95
Mode:95

3 0

3 years ago

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Find the complete factored form of the polynomial -8a^4b^5+4a^2b^4

Zigmanuir [339]

Answer:

The completely factored polynomial is:

⇒ $-4a^2b^4(2a^2b-1)$

Step-by-step explanation:

Given polynomial:

$-8a^4b^5+4a^2b^4$

To factor the given polynomial completely.

Solution:

In order to factor the given polynomial, we will find the greatest common factor of the terms and then factor them out by dividing the term by its G.C.F.

The factors can be listed as:

$-8a^4b^5=-1\times 2\times 2\times 2\times a\times a\times a\times a\times b\times b \times b\times b \times b$

$4a^2b^4=2\times 2\times a\times a\times b\times b \times b\times b$

From the factors listed the GCF can be given as = $2\times 2 \times a\times a \times b \times b\times b \times b$

GCF = $4a^2b^4$

Factoring out the GCF.

$4a^2b^4(-2a^2b+1)$

The above expression can be simplified by factoring out -1.

$-4a^2b^4(2a^2b-1)$ (Answer)

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3 years ago

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KiRa [710]

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