The sum of two numbers is 68 and the difference is 12. What are the numbers? Larger number: Smaller number:

Mathematics

1 answer:

Lady_Fox [76]3 years ago

5 0

Answer:

This is hard asfk

Step-by-step explanation:

Sorry but im confused just as you.

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Find a degree 3 polynomial having zeros -5, 1 and 5 and the coefficient of x^3 equal 1

mote1985 [20]

Answer:

$x^3 -x^2 -25x +25$

Step-by-step explanation:

$\text{The roots are,}~ \alpha = -5,~ \beta = 1 ~ \text{and}~ \gamma = 5\\\\\text{The polynomial is,}\\\\~~~x^3 - (\alpha + \beta + \gamma)x^2+(\alpha \beta + \beta \gamma+ \gamma \alpha)x - \alpha\beta \gamma\\\\=x^3 - (-5+1+5)x^2 +(-5 \cdot 1 + 1 \cdot 5 + 5 \cdot -5)x - (-5)(1)(5)\\\\=x^3 -(0+1)x^2 + (-5+5-25)x +25\\\\=x^3 -x^2 -25x +25$

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2 years ago

Let f(x)=4x+7 and g(x)=3x-5. find (fog)(-4) A. -9 B. -61 C. -32 D. -17

vovikov84 [41]

Answer:

Step-by-step explanation:

To evaluate (f ￮ g)(- 4), first evaluate g(- 4) then substitute this value into f(x)

g(- 4) = 3(- 4) - 5 = - 12 - 5 = - 17, then

f(- 17) = 4(- 17) + 7 = - 68 + 7 = - 61 → B

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3 years ago

Of regular movie goers, 40% watch romantic movies, 60% watch action movies, and 24% watch both types. Are watching romantic movi

Scilla [17]

Answer:

depend on watching action movies

Step-by-step explanation:

because most watch action

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Sharon spent $3.45 on sunflower seeds. The price of the sunflower seeds is $0.89 per pound. How many pounds of sunflower seeds d

garik1379 [7]

Sharon bought about 3.8 pounds

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3 years ago

Read 2 more answers

HELP NOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11 Water boils at 212 degrees __________ A. Ce

34kurt

alright it would have been easier if u took a pic but i think its a matching prob with choices A thro F:

Water boils at 212 degrees __________

A. Celsius Incorrect

Water boils at 100 degrees _________

B. Kelvin Incorrect

Water boils at 373 _______

C. Thermal Equilibrium Incorrect

Temperature at which all kinetic energy stops

D. Thermal Energy Incorrect

Reached when 2 objects have the same temperature

E. Absolute zero Incorrect

Sum of all kinetic energy and potential energy in an object's particles

F. Fahrenheit

So here are the correct matches:

Water boils at 212 degrees __________F. Fahrenheit

Water boils at 100 degrees _________ A. Celsius

Water boils at 373 _______ B. Kelvin

Temperature at which all kinetic energy stops______E. Absolute zero

Reached when 2 objects have the same temperature ________C. Thermal Equilibrium

Sum of all kinetic energy and potential energy in an object's particles _____ D. Thermal Energy

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3 years ago