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4 years ago

Subtract 5x²-7x-6 from 9x² + 3x-4

Mathematics

1 answer:

Kobotan [32]4 years ago

7 0

Answer:

the answer is 4 x ^2 + 10 x + 2

Step-by-step explanation:

hope this helps you out :) plz mark brainiest

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George walked around the entire perimeter of his rectangular garden. The length of his garden was 12 yards and the width was 8 y

creativ13 [48]

None of the above the answer is 96

8 0

3 years ago

Read 2 more answers

Are the two parabolas defined below similar or congruent or both? Justify your reasoning. Parabola 1: The parabola with a focus

Dominik [7]

Answer:

They are similar by a factor of 14

Step-by-step explanation:

From the general equation of a parabola opening up (since the directrix is on the y axis and the focus is upwards this line) the focus coordinates are:

$Focus = (h,k+p) = (0,2)$

So h=0 and k+p=2, for the directrix:

$y = k-p=-4$

solving k and p from the two equations above:

$k=-1 and p=3$

So for Parabola 1 the equation would be:

$x^{2} =4*3(y+1)$

For Parabola 2 the general equation is:

$x^{2} =4*(3/2)(y)$

here h=0, k=0, p=3/2 so focus is (0,3/2), directix is y=-3/2, they have the same orientation.

they are not congruent. For them to be similar it must comply:

$x_{1}=k x_{2}\\y_{1}=ky_{2} => (1/12)x_{1} ^{2} -1 = k(1/6)x_{2} ^{2}$

replacing $x_{1}$ and solving for k:

$(1/12)(kx_{2}) ^{2} -1 = k(1/6)x_{2} ^{2}\\ (1/12)k^{2} x_{2}^{2}-1 = k(1/6)x_{2} ^{2}\\k-12 = (12/6)=2\\k = 2+12=14\\$

They are similar by a factor of 14

8 0

3 years ago

Find the measure of < AED for m < BEC = 96

Strike441 [17]

I wish you would of put a picture but with what you gave me. if the angle is a straight line then you would just set it up like 96+x=180 bc a straight line ='s 180 and den subtract 96 from 180 which is 84 so x would = 84 if the angle is a supp. angle but til there's not a picture this might be wrong.
But i hope this helps have a nice nite!

5 0

3 years ago

Read 2 more answers

Help me...... question: 12 + 2x - 14x + 8=

riadik2000 [5.3K]

Answer:

-12x+20

Step-by-step explanation:

Subtract similar numbers:

2x - 14x = -12x

Product:

12 - 12x + 8

Group the terms that are similar:

-12x + 12 + 8

Add the numbers:

-12x + 20

Final answer:

-12x + 20

4 0

3 years ago

Read 2 more answers

(+6) + (+4) + (+6) + (+5)<br> simplify

Neporo4naja [7]

Answer: 21

1) simplify 6+4 to 10

10+6+5

2) simplify 10+6 to 16

16+5

3) simplify

21

3 0

4 years ago