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4 years ago

What is the area and permater of a squre whose side is 3x plus 5

1 answer:

3 0

Area= height x length
= (3x+5)²
= 9x²+30x+25

Perimeter= All sides added together
= 4 (3x+5)
= 12x + 20

Hope this helps!

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A plane descends 1,200 feet then it descends 500 feet what is the answer

SSSSS [86.1K]

Answer:

1700 ft

Step-by-step explanation:

I think you may have read that question wrong, cause the way you worded made it about to be simple addition, and one of the descends should probably be an ascend.

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3 years ago

I... I did it... Thanks-

umka21 [38]

Answer:

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Step-by-step explanation:

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4 years ago

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Can any one answer everything

Roman55 [17]

I don’t really understand for question 11 to 13

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3 years ago

Find all the zeroes of the polynomial function f(x)=x^3-5x^2+6x-30 in you use synthetic division show all three lines of numbers

jonny [76]

Answer:

5, $i\sqrt 6$ and $-i\sqrt 6$

Step-by-step explanation:

We are given that the polynomial

$f(x)=x^3-5x^2+6x-30$

We have to find the all the zeroes of the polynomial function.

$f(x)=0$

$x^3-5x^2+6x-30=0$

$x^2(x-5)+6(x-5)=0$

$(x-5)(x^2+6)=0$

$x-5=0$

$x=5$

$x^2+6=0$

$x^2=-6$

$x=\pm\sqrt{-6}=\pm i\sqrt6$

Using $\sqrt{-1}=i$

Hence, all the zeroes of the polynomial function are

5, $i\sqrt 6$ and $-i\sqrt 6$

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3 years ago

Hello, I need help with this question.

ella [17]

Answer:

The answer would be 22/12 or 1 and 11/12

Step-by-step explanation:

1/2+2/3+3/4

First get common denominators so you have a denominator of 12 so 6/12+8/12+9/12

Add those together and you get 23/12 but you have to subtract one because that's what the problem says so you get 22/12

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3 years ago

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