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3 years ago

Multiply and simplify. (4a + 6b)(2a - 2b)

Mathematics

1 answer:

blsea [12.9K]3 years ago

6 0

(4a + 6b) x (2a - 2b)

the answer would be 8a2 + 4ab - 12b2

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PLEASE HELP! (WILL GIVE BRAINLIEST FOR RIGHT ANSWER)

dimaraw [331]

Answer:

-41.29* 10^-7

Step-by-step explanation:

You would change the order of the numbers by multiplying -4.44 and 9.3 together and multiply 10^-7 and 10^0. Which would now look like this:

(-4.44* 9.3)* (10^-7* 10^0)

-4.44* 9.3= -41.292 and 10^-7* 10^0= 1* 10^-7. So now the equation would look like this:

-41.292* 10^-7

Then round -41.292 to 2 decimal places which would be -41.29.

-41.29* 10^-7

That's the answer. I hope this helps!

6 0

3 years ago

What set of refections would carry trapezoid ABCD onto itself?

BaLLatris [955]

Hello!

Trapezoid ABCD is shown. A is at negative 5, 1. B is at negative 4, 3. C is at negative 2, 3. D is at negative 1, 1.
A) x-axis, y=x, y-axis, x-axis
b) x-axis, y-axis, x-axis
c) y=x, x-axis, x-axis
d) y-axis, x-axis, y-axis, x-axis
The best answer is C180 rotation wud take that point to 4th quadrant
reflection in x-axis takes that to 1st quadrant
<span>reflection in y-axis brings it back to 2nd quadrant again. So, the sequence of transformations will bring A back to where it started
</span>
Hope this Helps! :)

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3 years ago

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Solve for x assume that lines wich appear to be tangent are tangent, please HELPP don't do it just for points please I really ne

snow_tiger [21]

Answer:

Hope It Help

Step-by-step explanation:

Brainliest Please

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What is the value of x in the circle below? If necessary round your answer to the nearest tenth. I AM FAILING THIS CLASS I JUST

emmainna [20.7K]

Since we know that the 38 is being bisected (which we can tell by the fact that the line hits it perpendicularly), we know that from the intersection to the edge of the circle is 19. From this we can create a right triangle in which the legs are 10 and 19 and the hypotenuse is a radius of the circle. Since x is also a radius of the circle, all we have to do is use that information to find the hypotenuse using the Pythagorean Theorem and we have x.

Pythagorean Theorem
$a^{2}$ + $b^{2}$ = $c^{2}$
$10^{2}$ + $19^{2}$ = $x^{2}$
100 + 361 = $x^{2}$
461 = $x^{2}$
x = $\sqrt{461}$ or about 21.47

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The magnitude of an earthquake depending on the energy it produces can be modeled using the equation

Orlov [11]

Answer:

Step-by-step explanation:

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