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Deffense [45]
3 years ago
13

Hellppppppp someone he helpful plzzzzzzz help !!!:)

Mathematics
1 answer:
Aloiza [94]3 years ago
3 0

Answer: 2(9b-16)

Step-by-step explanation: When factored completely it is 2(9b-16)

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Please help. I’ll mark you as brainliest if correct!
chubhunter [2.5K]

Answer:

\boxed{\sf \ \ \ f^{-1}(x)=1+\sqrt{x} \ \ \ }

Step-by-step explanation:

the minimum of f is for x = 1 and f(1)=0

f is decreasing for x<=1 and increasing for x>=1

so the domain is [1;+\infty[

f^{-1}(f(x))=x =f^{-1}((x-1)^2)\\\\f(f^{-1}(x))=x=(f^{-1}(x)-1)^2

x>=1 so x is positive and we can take the square root

so f^{-1}(x)=1+\sqrt{x}

8 0
3 years ago
A rectangular field has side lengths of 2/3 mile and 3/4 mile. What is the area of the field.
Ray Of Light [21]
A = LW
A = 2/3 * 3/4
A = 6/12 = 1/2 miles^2
4 0
3 years ago
Cos(x+y)/cos(x)sin(y)=cot(y)-tan(x)
zhuklara [117]
So there is an identity we'll need to use to solve this:

cos(x+y) = cosxcosy - sinxsiny

replace the numerator with the right hand side of that identity and we get:

(cosxcosy - sinxsiny)/cosxsiny

Separate the numerator into 2 fractions and we get:

cosxcosycosxsiny- sinxsiny/cosxsiny

the cosx's cancel on the left fraction, the siny's cancel on the right fraction and we're left with:

cosy/siny - sinx/cosx

which simplifies to:

coty - tanx




7 0
3 years ago
Which number completes the square?<br> 2x^2 - 12x +
Fofino [41]
67-x-20 hope this helped!!
7 0
2 years ago
You buy a package of 12 pencils for $2.64. Write this rate as a unit rate.
andrew-mc [135]

Answer:

0.22 per

Step-by-step explanation:

5 0
3 years ago
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