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harkovskaia [24]
3 years ago
11

David’s scores on the first three of four 100-point math tests were 86, 92, and 89. What score does he need on his fourth math t

est to ensure an average score of at least 90?
Mathematics
2 answers:
mr Goodwill [35]3 years ago
8 0
95 is your answer to your question
Radda [10]3 years ago
7 0
The answer is 93. 

..................


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Find the surface area of each prism. ​
alex41 [277]

Answer:

105.84 cm²

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Step-by-step explanation:

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kogti [31]

Answer:

<u>First page:</u>

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(For the table use your glossary)

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Evaluate the expression. If necessary, round to the nearest hundredth. ln 0
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3 years ago
alya collected 3 1/5 pounds of newspaper for the recycling Drive Rudy collected 4 1/5 times as much newspaper as a liar how many
iris [78.8K]

Answer:

13.44 pounds

Step-by-step explanation:

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8 0
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The polynomial has the following zeros: 0, 1, -2i, 3+the square root of 3. Put the polynomial in standard form.
dimulka [17.4K]
Standard form
ok, so the factored form of a polynomial with roots r1,r2,r3,r4 is
f(x)=(x-r1)(x-r2)(x-r3)(x-r4)
so
since the roots are 0,1,-2i,3+√3
I am assuming you want real coefients so ince -2i is a root, 2i is also a root

f(x)=(x-0)(x-1)(x+2i)(x-2i)(x-(3+√3))
f(x)=x⁵-(√3)x⁴-4x⁴+(√3)x³+7x³-(4√3)x²-16x²+12x

if you were allowed to have no-real coefients then exclue the 2i
f(x)=(x-0)(x-1)(x+2i)(x-(3+√3))
f(x)=(4x^4-4x^3- \sqrt{3}x^3+\sqrt{3}x^2+3x^2)+(2x^3-8x^2-2 \sqrt{3}x^2+6x+2 \sqrt{3}x) i
6 0
3 years ago
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