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Jet001 [13]
3 years ago
6

(-8)^2 pls help me... I need to answer the last question

Mathematics
1 answer:
zvonat [6]3 years ago
7 0
It’s +64 bc a negative times a negative becomes a positive and 8x8 is 64
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Which factorization is equivalent to this expression<br> -32xy + 20y - 14
densk [106]

Answer:

-2(16xy-10y+7)

Step-by-step explanation:

-2(16xy-10y-7)= -2×16xy-2(-10y)-2×7

-2(16xy-10y+7)= -32xy+20y-14

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Zina [86]
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If Teresa counts 9 leaves on September 1, how will the number of leaves change from may 1 to September 1
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3 years ago
The expression 8x2 − 144x 864 is used to approximate a small town's population in thousands from 1998 to 2018, where x represent
Rzqust [24]

The expression that is most useful for finding the year where the population was at a minimum would be 8(x − 9)² + 216.

Given expression 8x² − 144x + 864 is used to approximate a small town's population in thousands from 1998 to 2018, where x represents the number of years since 1998.

<h3>What is a quadratic equation?</h3>

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

Given expression is 8x² − 144x + 864

Let y = 8x² − 144x + 864

also,  y - 864 = 8x² - 144x

by Extracting common factor 8 on the right side

y - 864 = 8(x² - 18x)

Add (18/2)² on both sides, we get

y - 864 + 8(18/2)² = 8 (x² - 18x + 81²)

y - 864 + 648 = 8 (x² - 8x + 9)

on simplification

y - 216 = 8 (x - 9)²

y = 8(x - 9)² + 216

therefore, y = 8 (x - 9)² + 216

The expression that is most useful for finding the year where the population was at a minimum would be 8(x − 9)² + 216.

Learn more about a quadratic equation here:

brainly.com/question/2263981

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2 years ago
The sum of two integers is 30 and their difference is 2
GalinKa [24]

14   and   16 f4gg0t!!!!!!!!!!!!!!!!!!!!!!


3 0
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