3 years ago

Please help

Mathematics

1 answer:

Rasek [7]3 years ago

7 0

B is the answer i believe

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Solve 0= 2t^3-21t^2+ 40t

sukhopar [10]

$0=2t^3-21^2+40t$
switch sides
$2t^3-21t^2+40t=0$
solve factoring
$t(t-8)(2t-5)=0$
using the zero factor principle
$t=0
$
solve
$t-8=0:t=8$
solve
$2t-5=0:t= \frac{5}{2}$
$t=0,t=8,t= \frac{5}{2}$
Hope this helps

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4 years ago

Bill has $25 to buy fruit from the store, He buys 10 apples and has $15 left over. What is the price for 1 apple?

ddd [48]

Answer:

1 apple = $1

Step-by-step explanation:

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3 years ago

Write as a product of two polynomials.<br><br> 2(3-b)+5(b-3)^2

viktelen [127]

Answer:

$5b^{2}-32b+51$

Step-by-step explanation:

$2(3-b)+5(b-3)^{2}$

$=6-2b+5b^{2}-30b+45$

$=5b^{2}-32b+51$

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2 years ago

The price of XYZ stock fluctuates widely. In January it closed at $3.50 but In February it Closed at $2.25. However at the end o

son4ous [18]

Answer:

$3.583

Step-by-step explanation:

Given the monthly stock prices :

January = $3.50

February = $2.25

March = $5.00

The average monthly change in price of XYZ stock from. JANUARY through MARCH is;

(January + February + March) / 3

Average monthly change :

(3.50 + 2.25 + 5.00) / 3

$10.75 / 3

= $3.583

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3 years ago

Last week, the price of apples at a grocery store was $1.60 per pound. This week, apples at the same grocery store are on sale a

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It is 2.56 because per pound equals the amount

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2 years ago