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3 years ago

Consider the equation:

Mathematics

1 answer:

Ludmilka [50]3 years ago

4 0

Answer:

x^2 - 6x - 55 = 0

using calculator apply mode 5 3 and write nmbrs

1 , -6 , -55

answers must be 11 and -5

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in math class,26 students passed the quiz and 8 did not pass. what is the ratio of students who passed the test total students.

erastovalidia [21]

The ratio would be 26 over 34 because 24 passed and if 8 missed then you add those two to figure out how many leople were in the class

6 0

4 years ago

Pls help i dont understand :( will give Brainliest + 25 Points

wolverine [178]

Answer:

Step-by-step explanation:

plug the points into the slope formula

slope = (y2 - y1)/(x2 - x1) Then you get the slope of -0.5

(5 - -1))/(-6-6)

6/-12

-0.5

Plug a point in to the equation of y = -0.5x + b

-1 = -0.5(6) +b

2 = b

7 0

3 years ago

Which expression is a sum of cubes?

erik [133]

we know that

A polynomial in the form $a^{3} +b^{3}$ is called a sum of cubes

Let's verify each case to determine the solution

case A) $-64x^{6} y^{12} +125x^{16} y^{3}$

we know that

$-64=-4^{3}$

$x^{6}= (x^{2})^{3}$

$y^{12}= (y^{4})^{3}$

$125=5^{3}$

$x^{16}=x^{15} *x=x*(x^{5})^{3}$ -------> is not a perfect cube

$y^{3}= (y)^{3}$

therefore

the case A) is not a sum of cubes

case B) $-32x^{6} y^{12} +125x^{16} y^{3}$

we know that

$-32=-2^{5}$ -------> is not a perfect cube

$x^{6}= (x^{2})^{3}$

$y^{12}= (y^{4})^{3}$

$125=5^{3}$

$x^{16}=x^{15} *x=x*(x^{5})^{3}$ -------> is not a perfect cube

$y^{3}= (y)^{3}$

therefore

the case B) is not a sum of cubes

case C) $32x^{6} y^{12} +125x^{9} y^{3}$

we know that

$32=2^{5}$ -------> is not a perfect cube

$x^{6}= (x^{2})^{3}$

$y^{12}= (y^{4})^{3}$

$125=5^{3}$

$x^{9}=(x^{3})^{3}$

$y^{3}= (y)^{3}$

therefore

the case C) is not a sum of cubes

case A) $64x^{6} y^{12} +125x^{9} y^{3}$

we know that

$64=4^{3}$

$x^{6}= (x^{2})^{3}$

$y^{12}= (y^{4})^{3}$

$125=5^{3}$

$x^{9}=(x^{3})^{3}$

$y^{3}= (y)^{3}$

Substitute

$4^{3}(x^{2})^{3}(y^{4})^{3} +5^{3}(x^{3})^{3}(y)^{3}$

$(4x^{2}y^{4})^{3} +(5x^{3}y)^{3}$

therefore

the answer is

$64x^{6} y^{12} +125x^{9} y^{3}$ is a sum of cubes

6 0

3 years ago

Read 2 more answers

A car costs £14000. Work out the price after an 8% discount

Semenov [28]

Answer:

13999.92

Step-by-step explanation:

7 0

3 years ago

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If Johnny had twelve halves of dishsoap and bought five halves how much dishsoap will Johnny have?

VladimirAG [237]

Answer:

8 and one halve

Step-by-step explanation:

12+5 =17

17/2 is 8 1/2

7 0

3 years ago

Read 2 more answers