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olya-2409 [2.1K]
3 years ago
6

Need some help with this one.

Mathematics
1 answer:
Verizon [17]3 years ago
4 0

Answer:

x² + 4x + 3

Step-by-step explanation:

to find f(g(x)), substitute x = g(x) into f(x)

f(g(x)) = f(x + 2) = (x + 2)² - 1 = x² + 4x + 4 - 1 = x² + 4x + 3


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3 years ago
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Simplify(3 square root 3 x square root 5 square root of 3)Square root of negative two
Assoli18 [71]

Answer:

9√10 (nine square root ten)

Step-by-step explanation:

(3√3  .√5.√3.)√2

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8 0
3 years ago
HELP PLEASE!
Doss [256]
D.
first, eliminate B and C, because the highest degree in these two equation is 3, a 3-degree equation has 3 roots, not 4. 

between A and D, A has the roots 0, 0, 7, and -7, all real roots.

D can be factored into (x²-49)(x²+1)=0
x²=49 or x²=-1
x=7 or -7, x=i or -i    two real roots, two unreal roots 

for the second equation: 
first, find the first term by using the formula:
the nth term=the first term + (n-1)*difference
you are given the 13th term and d=3.7
a13=a1+(13-1)d
1.9=a1+12*3.7
a1=-42.5

the sum of the first 13 terms is S=(a1+a13)*(13/2)=(-42.5+1.9)*6.5=-263.9
3 0
3 years ago
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Dimas [21]

Answer:

4.550.

Step-by-step explanation:

Converting to decimal form:

9/2 = 4.5

4 1/2 = 4.5

4.505

4.550

The largest is 4.550.

5 0
2 years ago
What value of x will make the equation below true?<br> 8x=4x+16
Karolina [17]

Answer:

x=-2

Step-by-step explanation:

5 0
3 years ago
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