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ankoles [38]
3 years ago
15

Find (3) if f(x)=x2 + 2x2-x-1

Mathematics
1 answer:
Olenka [21]3 years ago
7 0

Answer:

The correct answer is:

f(3)=23

Step-by-step explanation:

By evaluating first, and then the mathematical calculation, we have:

f(3)= 3^{2} + 2 ×3^{2} - 3 -1 

= 9 +18 -3-1  

= 23

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If two events are complementary, then we know that: Multiple Choice the sum of their probabilities is one. the joint probability
notka56 [123]

Answer:

The joint probability of the two events is one.

Step-by-step explanation:

Complementary events:

If two events are complimentary, these three following things are true:

They are dependent.

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The joint probability of the two events is one.

The last one is the correct choice.

3 0
3 years ago
Select all that apply. the theorems in the lesson are followed by which of the following?
musickatia [10]

Answer: E


Step-by-step explanation: In mathematics, a theorem is a statement that has been proven on the basis of previously established statements, such as other theorems, and generally accepted statements, such as axioms. A theorem is a logical consequence of the axioms. ... Many mathematical theorems are conditional statements.


7 0
3 years ago
Read 2 more answers
4=y divided by 3. what is y
Marrrta [24]

Answer:

y = 9

Step-by-step explanation:

1) Multiply both sides by 3.

3 × 3 = y

2) Simplfiy 3 × 3 to 9.

9 = y

3) Switch sides.

9

6 0
2 years ago
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The temperature of a city is recorded at midnight on the last days of four consecutive months
Serhud [2]

Answer:

26 degrees Celcius

Step-by-step explanation:

The minimum temperature is -11

The maximum temperature is 15

to get from -11 to 0: add 11

to get from 0 to 15: add 15

11+15 = 26

6 0
2 years ago
0.0176165803 is estimated to what
bezimeni [28]
It most common to round to the hundredths place, this is two spaces after the decimal. 

So look two spaces right - 0.17. If the third digit (in this case 6) is higher than 5 you round the number up if its not, keep it the same. 

"6" is greater than five, so round it to about (or approximately) 0.18.
5 0
3 years ago
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