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tatyana61 [14]
2 years ago
7

What's the answer to this??

Mathematics
1 answer:
Vikentia [17]2 years ago
5 0

Answer:

D

Step-by-step explanation:

just a guess but i reckon it's a good one.

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The archway of the main entrance of a university is modeled by the quadratic equation y = -x2 + 6x. The university is hanging a
katrin [286]

Basically look for the intersection points of these two functions by setting them equal to each other.

-x^2 + 6x = 21/4 - x/4

-x^2 + (25/4)x - 21/4 = 0

x = 1 and x = 21/4


Plug these points back to any of the two original equations, you will get

(1,5) and (21/4, 63/16)


5 0
4 years ago
Read 2 more answers
Solve for x in the equation x2-4x-9=29
Citrus2011 [14]
Hello! And thank you for your question!

First move all the terms to one side:

<span>x^<span><span>​2</span><span>​​</span></span></span>−4x−9−29=<span>0
</span>
Then simplify x^​2​​−4x−9−29:

<span><span><span>x<span><span>​^2</span><span>​​</span></span></span>−4x−38=0</span><span>
Then use the quadratic formula:

x = 4 + 2</span>√42 over 2 , 4 - 2√42 over 2

Finally simplify:

x = 2 + √42, 2 - √42

Final Answer:

x = 2 + √42, 2 - √42
</span>
3 0
3 years ago
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A deep sea diver is 28 feet below sea level.the location of the diver is represe nted by the integer -28he swims down and additi
Alona [7]
He is at -18 feet because you do -28 - 5 which equals -33 after that you do -33 + 15
6 0
3 years ago
Can someone help me???
Mumz [18]

Answer:

p to the power of 12

Step-by-step explanation:

hope this helps!

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3 years ago
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The question is down below in the picture.
bagirrra123 [75]

Answer:

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Step-by-step explanation:

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4 years ago
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