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MakcuM [25]
3 years ago
10

Composite functions✨

Mathematics
1 answer:
Ulleksa [173]3 years ago
7 0

2x+1=16\\ 2x=15\\ x=\dfrac{15}{2}\\\\ f(16)=4\cdot\left(\dfrac{15}{2}\right)^2+4\cdot\left(\dfrac{15}{2}\right)=225+30=255

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Find the solution set of the inequality<br> 35- 4x &gt; 2
Orlov [11]
35-4x>2
-4x>2-35
-4x>-33
-x>-33/4
x<33/4    (x<8.25)

Solution: x<8.25.  or  x∈(-∞ , 8.25)
3 0
2 years ago
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBB ?
nadezda [96]

Answer:

uh.

Step-by-step explanation:

3 0
3 years ago
Could you please explain it?
Troyanec [42]
Hello,
there are some words that I could not read. But:
I support evements are independants.
p(s)=0.2
p(l)=1-0.2=0.8 l=lose

1)0.8*0.2=0.16

2) 0.8²*0.2=0.128

3) 0.8^3*0.2=0.1024

4) 0.2*0.8^(n-1)

6 0
3 years ago
Which is the best estimate of -14 1/9 (-2 9/10)<br><br> A- (-42)<br> B-(-28)<br> C-28<br> D-42
aleksandrvk [35]
D), I believe it is -42. Correct me if im wrong :}
4 0
2 years ago
Read 2 more answers
(x+3)^2 + 16/(x+3)^2 = 92 <br><br> x + 1/(x+3) = ??
Irina-Kira [14]
One
Remark

This is very complicate unless you pick the right method. It's very handy o know about substitutions.

Method
Let z = (k + 2)^2

Now the problem becomes
z + 16/z = 92           Multiply through by z 

Solution
z^2 + 16 = 92z
That does not look very promising. If you know the quadratic formula, this mess can be solved. If you do not know what the quadratic formula is, then what I've written is the answer. 

Worse yet, you have to know what complex numbers are. Is this something you know about? The z form of this equation is fine. It gives answers that are rational. The problem is that both are negative and so in your next step, you will be forced to take the square root of a negative number.

Maybe the answer is just
(x + 3)^ + 16 = 92(x + 3)^2
If all you have to do is expand this then you get
x^2 + 6x + 9  + 16 = 92(x^2 + 6x + 9) Remove the brackets.
x^2 + 6x + 25 = 92x^2 + 552x + 828  Put the left over to the right.
0 = 92x^2 - x^2 + 552x - 6x + 828 - 25
0 = 91x^1 + 546x + 803


It looks that way from the second question. If I'm wrong about that, put a comment down below.

Two
 Put over a common denominator and expand
\frac{(x + 3)^2 + 1}{(x + 3)^2}  =  \frac{x^2 + 6x + 9 + 1}{x^2 + 6x + 9} =  \frac{x^2 + 6x + 10}{x^2 + 6x + 9}
3 0
2 years ago
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