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Amiraneli [1.4K]
3 years ago
14

If f(x) = 2x^2+3, find f(a+2)

Mathematics
1 answer:
zzz [600]3 years ago
6 0

Answer:

2a²+8a+7

Step-by-step explanation:

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Pls help me and thank ya!!
algol13

Answer:

Option 1

Step-by-step explanation:

Rational numbers do not have infinite decimals.

Option 1:

-5, 3/4 and √49 are all rational. Correct

√49 = 7

3/4 = 0.75

-5 = -5

Option 2:

1/4 = 0.25

5 = 5

√12 = 3.4641...

Incorrect

Option 3:

-1/2 = -0.5

-3 = -3

√8 = 2.82841...

Incorrect

Option 4:

1/7 = 0.142857...

9 = 9

√11  = 3.31662...

Incorrect

5 0
3 years ago
Solve the equation √x+9 - 9 = -4 show each step of your solution process
Serjik [45]

Answer:

16

Step-by-step explanation:

Start by adding 9 to both sides, obtaining:  √(x + 9) = 5.

Square both sides, obtaining:   x + 9 = 25.

Subtract 9 from both sides:  x = 16

Note that √(16+9) - 9 = -4, as required.


3 0
3 years ago
An isosceles trapezoid is a quadrilateral with two congruent legs, a pair of parallel bases, and congruent base angles. Prove th
daser333 [38]
34° 89° 34° loop is the answer
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3 years ago
PRETTY EASY PLS HELP I BEG U
lbvjy [14]

Answer:

Step-by-step explanation:

110 I think

3 0
3 years ago
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2(3+9x) answer this for me plz lol
Gre4nikov [31]

Answer:

6+18x

Step-by-step explanation:

You typically would use PEMDAS in this situation but in the parenthesis, you can't add the 3 and the 9x together, so you just skip to 2*3 and 2*9x

4 0
3 years ago
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