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Nezavi [6.7K]
3 years ago
7

Can someone please answer this? If you do i will crown you as brainliest!

Mathematics
2 answers:
scoray [572]3 years ago
8 0

A. GIVE ME BRAINLIST

sp2606 [1]3 years ago
6 0

(9t-4)(-9t-4)

Multiply each term by each term then combine like terms:

9t x -9t = -81t^2

9t x -4 = -36t

-4 x -9t = 36t

-4 x -4 = 16

-81t^2 - 36t + 36t + 16

Combine like terms:

-81t^2 + 16

The answer is the second choice.

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Which ordered pairs in the form (x, y) are solutions to the equation 3x−4y=21?
zmey [24]
We must plugin values:
3(7)-4(0)=21, is CORRECT since 7•3 is 21 and -4•0 is 0
3(11)-4(3)=21 is CORRECT since 3•11=33 and -4•3=-12 so 33-12=21
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4 0
4 years ago
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1. Mary is making a necklace by alternating red, yellow, and green beads. In
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6 0
3 years ago
T² +8st + r²<br><br> T=11 r=2 s=3
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Step-by-step explanation:

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8 0
1 year ago
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Distance formula for (0,1) (3,7)
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5 0
4 years ago
In the year 1999, the surface elevation of Lake Powell was 3893 feet above sea level. In the year 2005, the surface elevation of
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Answer:

Rate of Change = -77.9 feet/year

My interpretation: "Is Bad."

Step-by-step explanation:

The rate of change is the number of feet that Lake Powell dropped, divided by the number of years the drop took place.  We want a value with a unit of feet/year.

<u>Year</u>    <u>Feet</u>

1999     3893

2005    3425.6  

<u>Change</u>

Year = (2005 - 1999)  or 6 years

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Rate of Change = (-467.4 feet)/(6 years)

Rate of Change = -77.9 feet/year

=======================

FYI:  Lake Powell is 22.39 feet lower today (June 23, 2022) than it was 1 year ago.

8 0
2 years ago
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