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3 years ago

How do you solve (2x^5)(6x^4)

1 answer:

8 0

First expand the brackets by multiplying each thing inside the brackets by 2:
4x−10=6x+4. then minus the 4x so there are only x 's on one side:
−10=2x+4. then minus the 4 so there are only numbers on one side and x 's on the other:
−14=2x. then divide by 2 to get the value of x

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The length of the rectangle is three times its width.The perimeter of the rectangle is at most 112 cm .

Slav-nsk [51]

Option D is the correct answer

$2w+2.(3w)\leq 112$

Further explanation:

Let

$l\ be\ the\ length\ of\ rectangle\\and\\w\ be\ the\ width\ of\ rectangle$

The perimeter of a rectangle is given by:

$P=2w+2l$

It is also given that:

$P\leq 112$

So we can write as

$2l+2w\leq 112$

We also know that The length of the rectangle is three times its width

$l=3w$

Putting the value of l in the inequality

$2.(3w)+2w\leq 112$

Rearranging the terms

$2w+2.(3w)\leq 112$

Hence, option D is the correct answer.

Keywords: Inequalities, Perimeter

Learn more about inequalities at:

#LearnwithBrainly

5 0

3 years ago

When 3 + 3x − 5 − 8x is simplified, the result is:

Karo-lina-s [1.5K]

Answer: -5x - 2

Step-by-step explanation:

Combine like terms: (3x - 8x) + (3 - 5) → -5x - 2 :)

3 0

2 years ago

Suppose an and bn are series with positive terms and bn is known to be convergent. (a) If an > bn for all n, what can you say

yawa3891 [41]

Answer:

a. i. We cannot say anything about aₙ

ii. we do not know if the terms of aₙ are increasing or decreasing

b. i. aₙ converges by the Comparison Test.

ii. aₙ also converges since bₙ.

Step-by-step explanation:

(a)

i) If aₙ > bₙ for all n, what can you say about aₙ ? Why?

We cannot say anything about an.

ii) Why?

This is because since ∑bₙ converges, ∑aₙ > ∑bₙ, we do not know if the terms of aₙ are increasing or decreasing, so we have no information about it.

(b) If aₙ < bₙ for all n, what can you say about aₙ ? Why?

i) aₙ converges by the Comparison Test.

ii) Why?

This is because since ∑bₙ converges, and ∑aₙ < ∑bₙ, we know that the terms of aₙ are also decreasing and, by the comparison test, aₙ also converges since bₙ.

7 0

3 years ago

Solve 4x2 - x + 5 = 0.

algol [13]

Answer:

√

−

√

Step-by-step explanation:

5 0

3 years ago

I don't know at all please help me

arlik [135]

Alrighty.
First we need to make them all simplified.
So simplified would be $\frac{9}{10}$ times $\frac{5}{4}$ times $\frac{5}{2}$ .
Then we multiply the numerator and the denominator. The final answer is $\frac{225}{800}$
Simplified is $\frac{51}{160}$

8 0

4 years ago