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adell [148]
4 years ago
14

1) Transform the polynomial into a perfect square trinomial to solve.

Mathematics
1 answer:
Lubov Fominskaja [6]4 years ago
7 0
If you would like to solve 3 * x^2 + 24 * x = 27, you can do this using the following steps:

<span>3 * x^2 + 24 * x = 27
</span><span>3 * x^2 + 24 * x - 27 = 0
</span>3 * (x^2 + 8 * x - 9) = 0
x^2 + 8 * x - 9<span> = 0
</span>(x + 9) * (x - 1) = 0
1. x = - 9
2. x = 1

None of the above results is correct. The correct result would be {-9, 1}.
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#4 If 6 +x= 13, then find the value<br> of 8x - 31.<br> A7<br> B) 17<br> C) 25<br> D) 73
amid [387]
C. 25
6+x=13
x=7
8(7)-31=25
8 0
4 years ago
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A population of fish starts at 8,000 and decreases by 6% per year. What is the initial value, a? A.6% B.0.6 C.8,000
EleoNora [17]
Y = a(1 - r)^t
Y = 8,000(1 - 0.06)^t

You can see a = 8,000
As the fish population starts at 8,000
3 0
3 years ago
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Write an inequality for the problem
Kisachek [45]
60×50>=2,400 (the symbol is less than or equal to 2,400)
7 0
3 years ago
Can any one help me on this really lost on this one please help
Evgesh-ka [11]
Might be wrong but I might be right so the answer is there is no solution









7 0
3 years ago
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The longer leg of a right triangle is 7 ft longer than the shorter leg. The hypotenuse is 9ft longer than the shorter leg. Find
julia-pushkina [17]

Answer:

8, 15 and 17 feet respectively

Step-by-step explanation:

Let the shorter leg=l feet

The longer leg of a right triangle is 7 ft longer than the shorter leg, therefore Length of the longer leg=(l+7) feet

The hypotenuse is 9ft longer than the shorter leg. Therefore Length of the hypotenuse=(l+9) feet

Using Pythagoras Theorem

Hyp^2=Opp^2+Adj^2\\(l+9)^2=l^2+(l+7)^2\\(l+9)(l+9)=l^2+(l+7)(l+7)\\l^2+9l+9l+81=l^2+l^2+7l+7l+49\\l^2+18l+81=2l^2+14l+49

This results into:

2l^2-l^2+14l-18l-81+49=0

l^2-4l-32=0\\l^2-8l+4l-32=0\\l(l-8)+4(l-8)=0\\(l-8)(l+4)=0

l-8=0 or l+4=0

l=8 or -4

Since length cannot be negative, The length l=8 feet

The sides of the rectangle are therefore: 8, 15 and 17 feet respectively

5 0
3 years ago
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