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3 years ago

−5(1−5k)−4(2k+5), I got this problem on khan academy and can't figure it out

Mathematics

1 answer:

ikadub [295]3 years ago

3 0

Your answer would be 1.13 repeating or no solution.

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2, 10 after a dilation by a scale factor of 1/2 centered at the<br> origin?

anzhelika [568]

Answer:

(1, 5)

Step-by-step explanation:

When the center is the origin, the dilation factor multiplies each coordinate:

(2, 10) ⇒ (1/2)(2, 10) = (1, 5)

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3 years ago

Factor the greatest common factor from the polynomial 3x^2 + 6x -9

ryzh [129]

Answer:

$3(x+3)(x -1)$

Step-by-step explanation:

$3x^2 + 6x -9$

All the terms in this polynomial are divisible by 3. Factor 3 out of this polynomial:

$= 3(x^2 + 2x -3)$

Now, factor inside the parentheses by grouping:

$= 3(x^2 -1x+3x -3)$

We knew to split the +2x up into -1x and 3x because -1 and 3 multiply to get -3, which is the last value in the polynomial.

$= 3(x(x -1)+3(x -1))\\= 3(x+3)(x -1)$

Therefore, the final factored polynomial is $3(x+3)(x -1)$ .

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2 years ago

A triangle has side lenghts 10cm, 24cm, and 34cm. is the triangle acute, obtuse, or right?

Sergeu [11.5K]

Imposible triangle, lagest side must be > sum other sides.

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3 years ago

Just need the last row !

fgiga [73]

Answer:

I am so confused Sorry need points.

Step-by-step explanation:

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3 years ago

Find the next terms in each geometric sequence 64, 16, 4

zhannawk [14.2K]

the next term is 1 because 64 divide by 16 is 4 which means the geometric sequence is decreasing by 4

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3 years ago

Read 2 more answers