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2 years ago

Factor. Look for a GCF first. X^3+2x^2-48x

Mathematics

1 answer:

svp [43]2 years ago

4 0

Answer:

x(x - 6)(x + 8)

Step-by-step explanation:

First, the GCF of these 3 terms is x.

So to separate x from this it now becomes x(x^2 + 2x - 48).

Now to factor the expression inside the parentheses easily I use "a" and "b" to make it easier.

a + b = 2 (from 2x)

a * b = -48 (from third term of expression)

a = -6, b = 8

Substitute "a" and "b" and I get: x(x - 6)(x + 8)

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The cost of a watermelon depends on its weight. Which of the following

Nonamiya [84]

Answer:

20 pounds

Step-by-step explanation:

i took the test trust me i got 2 points

7 0

2 years ago

The sum of the series.<br><br> Can you explain how to do? Thanks!

Doss [256]

Answer:

5115

Step-by-step explanation:

First of all, we need to assume there is a typo involved, and that the expression is supposed to be ...

$\displaystyle\sum_{i=1}^{10}{5\left(\dfrac{1}{2}\right)^i}$

The values being summed look a lot like the general term of a geometric sequence:

$a_1(r^{n-1})$

The exponents in the sum range from 1 to 10, so the values being summed range from 5/2 to 5/1024. In order for that to be the case with our general term, for r = 1/2, we must have a1 = 5/2 as we let n range from 1 to 10.

The sum of the terms of the geometric sequence is ...

$S_n=a_1\dfrac{1-r^n}{1-r}\\\\S_{10}=\dfrac{5}{2}\cdot\dfrac{1-\left(\dfrac{1}{2}\right)^{10}}{1-\dfrac{1}{2}}=\dfrac{5}{2}\cdot\dfrac{1023}{512}=\dfrac{5115}{1024}$

The numerator of the fraction is ...

x = 5115

_____

<em>Caveat</em>

If we have misinterpreted the intent of the problem statement, the answer will be different.

6 0

3 years ago

80 POINTS! WILL GIVE BRAINLY

PSYCHO15rus [73]

Answer:

Step-by-step explanation: No, Gavin is not correct because 284.42 is less than 400 the equation is 200(1+0.09/2)^8 when solved you get 284.42 which is not enough.

Step-by-step explanation:

simplifying this

Ok so do 0.09/2 which is 0.045 then add 1 so you get 200•1.045^8 then you do 1.045^8= 1.422100.... so I did 1.422100•200 to get the final answer of 284.42

8 0

3 years ago

Read 2 more answers

Answer with steps please

kumpel [21]

Answer:

Step-by-step explanation: