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3 years ago

8

F(x) = x2 + 3 Is it an even odd function, both or neither?

2 answers:

Virty [35]3 years ago

7 0

Answer: Both because it depends on the number you put in there

Step-by-step explanation:such as 1^2 +3=4 an even number 2^2+3=7 an odd number

k0ka [10]3 years ago

3 0

Seems to be an even function.

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in a AP the first term is 8,nth term is 33 and sum to first n terms is 123.Find n and common difference

allsm [11]

I believe there is no such AP...

Recursively, this sequence is supposed to be given by

$\begin{cases}a_1=8\\a_k=a_{k-1}+d&\text{for }k>1\end{cases}$

so that

$a_k=a_{k-1}+d=a_{k-2}+2d=\cdots=a_1+(k-1)d$

$a_n=a_1+(n-1)d$

$33=8+(n-1)d$

$21=(n-1)d$

$n$ has to be an integer, which means there are 4 possible cases.

Case 1: $n-1=1$ and $d=21$ . But

$\displaystyle\sum_{k=1}^2(8+21(k-1))=37\neq123$

Case 2: $n-1=21$ and $d=1$ . But

$\displaystyle\sum_{k=1}^{22}(8+1(k-1))=407\neq123$

Case 3: $n-1=3$ and $d=7$ . But

$\displaystyle\sum_{k=1}^4(8+7(k-1))=74\neq123$

Case 4: $n-1=7$ and $d=3$ . But

$\displaystyle\sum_{k=1}^8(8+3(k-1))=148\neq123$

8 0

3 years ago

Evaluate this expression using the given values for x and y.

nataly862011 [7]

Answer:

The answer is 33.

Step-by-step explanation:

4x^2 + 13 - 2y, x=3 y=8

In order to evaluate this, you just need to plug the x and y in the expression:

= 4(3)^2 + 13 - 2(8)

= 4(9) + 13 - 16

= 36 + 13 - 16

= 33

5 0

3 years ago

Please evaluate 7/13×8/11<br><br>should be in fraction form!<br>will be marked brailiest

kolbaska11 [484]

Answer:

56/143 ( $\frac{56}{143}$ )

5 0

3 years ago

Read 2 more answers

FINAL EXAM PLEASSE HELP

krok68 [10]

f(3) = -4 as 3 lies between 2 and 5

3 0

2 years ago

Factor 25x2 - 45x - 10

AysviL [449]

Answer: 5 (8-9x)

Step-by-step explanation:

25 x 2 - 45 x -10

50 - 45 x -10

40 - 45x

8 0

3 years ago