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3 years ago

Which expression shows the correct way to expand (6x-6)^2?

Mathematics

1 answer:

jeka943 years ago

5 0

Answer:

$(6x -6)^{2} = (6x +6)(6x +6) = 36x^{2} -72x + 36$

Step-by-step explanation:

Even if I don't know the options I can give all the option that will be right for expending this. Just look at each step and see which one is one of the options.

$(6x -6)^{2} = (6x +6)(6x +6) = 36x^{2} -72x + 36$

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geniusboy [140]

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3 years ago

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3 years ago

6. m A = 8x - 2, m B = 2x - 8, and m2 C = 94 - 4x. List the sides of A ABC in order from shortest to

Oduvanchick [21]

Given:

In triangle ABC, m∠A=(8x-2)°, m∠B=(2x-8)° and m∠C=(94-4x)°.

To find:

The sides of the triangle ABC in order from shortest to longest.

Solution:

In triangle ABC,

$m\angle A+m\angle B+m\angle C=180^\circ$ (Angle sum property)

$(8x-2)^\circ+(2x-8)^\circ+(94-4x)^\circ=180^\circ$

$(6x+84)^\circ=180^\circ$

$6x+84=180$

$6x=180-84$

$6x=96$

Divide both sides by 6.

$x=\dfrac{96}{6}$

$x=16$

Now,

$m\angle A=(8(16)-2)^\circ$

$m\angle A=(128-2)^\circ$

$m\angle A=126^\circ$

Similarly,

$m\angle B=(2(16)-8)^\circ$

$m\angle B=(32-8)^\circ$

$m\angle B=24^\circ$

And,

$m\angle C=(94-4(16))^\circ$

$m\angle C=(94-64)^\circ$

$m\angle C=30^\circ$

In a triangle the smaller angle has shorter opposite side and larger angle has longer opposite side.

$24^\circ$

$m\angle B$

$AC$

List the sides of triangle ABC in order from shortest to longest is AC:AB:BC.

Therefore, the correct option is A.

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3 years ago

Help needed (20 points and will award brainliest)

Sav [38]

Answer:

Q20:

267.99 - 98.65 - 14.77 - 3.67 - 0.87 - 2 = $148.03

Q21:

Assumed 8 hours a day and he works 365 days a year

11 x 8 x 365 = $32120

Q22

467.99 - 98.65 - 14.77 - 3.67 - 0.87 - 2 = $348.03

Q23

0.64 = 64%

Q24

0.453 = 45.3%

Q25

0.025 = 2.5%

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Step-by-step explanation:

4 0

4 years ago

ASAP HELP PLEASE!!!!!

Step2247 [10]

c because I don’t know. I don’t know how to explain to it

4 0

3 years ago