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3 years ago

Write a polynomial that represents the perimeter of the triangle with side lengths of 4x^2-9x+12, x+3, x^2+3x+7

Mathematics

1 answer:

charle [14.2K]3 years ago

3 0

Answer:

It would be A i took the test

Step-by-step explanation:

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Alonso leans a 28-foot ladder against a wall so that it forms an angle of 65° with the

lorasvet [3.4K]

The horizontal distance between the base of the ladder and the wall is: 11.8 foot

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2 years ago

what is the probability of drawing two blue cards if the first card is not included in the second draw? simplify your answer com

BlackZzzverrR [31]

Answer:

5/14

Step-by-step explanation:

The total number of cards is 8

There are 5 blue cards

P(1st card is blue) = blue/total = 5/8

We take away a blue card

The total number of cards is 7

There are 4 blue cards

P(2nd card is blue) = blue/total = 4/7

The probability of blue blue is P(blue blue ) =

P(1st card is blue)*P(2nd card is blue) =

5/8* 4/7

20/56

We can divide the top and bottom by 4

5/14

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3 years ago

What are the coordinates of the center and length of the radius of the circle whose equation is X^2+6x+4y=23?

Virty [35]

Answer:

The following equation is not a circle, but a hyperbola, because you have 4y, but no y^2

Step-by-step explanation:

Please mark for Brainliest!! :D Thanks!!

For more questions or more information, please comment below!

3 0

3 years ago

Math question please help <br> If you get this right I will mark you as a brainliest

mixas84 [53]

What do you need help with

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3 years ago

The sum of four times a number and five times another number is -28. The sum of nine times the first number and two times the se

Rina8888 [55]

Answer:

Step-by-step explanation:

$x,\ y-the\ numbers\\\\\text{The sum of four times a number and five times another number is -28:}\\\\4x+5y=-28\\\\\text{The sum of nine times the first number and two times the second number is 11:}\\\\9x+2y=11\\\\\text{We have the system of equations:}\\\\\left\{\begin{array}{ccc}4x+5y=-28&\text{multiply both sides by2}\\9x+2y=11&\text{multiply both sides by (-5)}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}8x+10y=-56\\-45x-10y=-55\end{array}\right}\qquad\text{add both sides of the equation}$

$.\qquad-37x=-111\qquad\text{divide both sides by (-37)}\\.\qquad\qquad\boxed{x=3}\\\\\text{Put the value of x to the first equation:}\\\\4(3)+5y=-28\\12+5y=-28\qquad\text{subtrac 12 from both sides}\\5y=-40\qquad\text{divide both sides by 5}\\\boxed{y=-8}$

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3 years ago