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ahrayia [7]
3 years ago
9

What formula should be used when factoring the expressionn x^3+27

Mathematics
1 answer:
kobusy [5.1K]3 years ago
5 0

x³ + 27 which can be written as x³ + 3³

It is in the form of a³ + b³ = ( a + b) ( a² - ab + b²)

so

x³ + 3³

= (x+ 3) (x² - x * 3 + 3²)

= ( x + 3 ) ( x² - 3x + 9)

Hope this helps you.

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What is the square root of 149? And please show me how to find the answer
chubhunter [2.5K]
The answer is 12.21 you find this by dividing 149 by ten and then 11 then 12 next 13 then realize you went too far and its some where around 12. somthing. I know that was confusing but thats the only way i can explain it or just put this into a calculator:

4 0
3 years ago
Please help me with this question I’m so confused
zavuch27 [327]

s = ut +  \frac{1}{2} a {t}^{2}  \\ s = 10( \frac{1}{2} ) +  \frac{1}{2} ( - 2) {( \frac{1}{2}) }^{2}  \\ s = 10( \frac{1}{2} ) +  \frac{1}{2} ( - 2)(  \frac{1}{4} ) \\ s = 5 + ( - 1)( \frac{1}{4} ) \\ s = 5 + ( -  \frac{1}{4} ) \\ s = 5 -  \frac{1}{4}  \\ s =  \frac{20}{4}  -  \frac{1}{4}  \\ s =  \frac{19}{4}

Hope it helps

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4 0
2 years ago
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What is the answer to 2(17+3)=?
Effectus [21]
The answer is 40 easy
4 0
3 years ago
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What's the mean of 8, 17, 9, 3, 13
Gnom [1K]
Mean is a form of average, and in order to find this we add up all the numbers then divide by the amount of numbers we have.

So, we have 5 numbers here. (8, 17, 9, 3, and 13)

8 + 17 + 9 + 3 + 13 = 50

50/5 = 10

The mean of those five numbers is 10.
6 0
3 years ago
Janelle has a 12-ounce can of soft drink. She drinks 3/5 of the soft drink.
guapka [62]

Answer:

Answer:  4.8 ounces

Step-by-step explanation:

In total there are 12 ounces. If she drinks 3/5 of 12 you multiply 3/5 by 12.

3/5 * 12 would be equal to 3/5 * 12/1 which is 36/5. You have found how much she has drank. 36/5 is also equal to 7.2 ounces. Subtract 7.2 form 12 and you get 4.8 ounces.

Hope this helped!

7 0
3 years ago
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