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kow [346]
3 years ago
13

What is the inverse of y=(x+3)2

exFormula1" title="y = (x + 3) { }^{2} " alt="y = (x + 3) { }^{2} " align="absmiddle" class="latex-formula">
Mathematics
2 answers:
dolphi86 [110]3 years ago
8 0
Switch x and y
So
x =  {(y + 3)}^{2}

Solve for y
\sqrt{x}  = y + 3 \\ y =  \sqrt{x}  - 3
Inverse is
{f}^{ - 1} (x) =  \sqrt{x}  - 3
nadya68 [22]3 years ago
3 0

Answer:

Step-by-step explanation:

The inverse is f^-1(x)=-3+

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Evaluate tan (cos^ -1 (- 15/17 )
deff fn [24]

Answer:

tan=151.9275131

7 0
3 years ago
Read 2 more answers
Two-fifths of the girls signed up to play softball. An equal number of girls signed up to play pitcher, infield, and outfield. W
Natali [406]
Okay so lets look at this.

So we have 5/5 girls.

2/5 of them are playing softball.  An equal number of girls signed up to play pitcher, infield, and outfield.  This means that each one is 1/3.

So out of 2/5 of the girls, there is 1/3 of the 2/5 that signed up to play outfield.

The answer can be solved with multiplication of fractions.

2/5 * 1/3 is 2/15.  So 2/15 of the girls in the school signed up to play outfield.

Answer: 2/15 or 0.133
3 0
3 years ago
Read 2 more answers
Given that sinx=3/5 where x is an acute angle for cosx
mestny [16]
The correct question is
Given that sinx=3/5 where x is an acute angle, what is cosx and tanx<span>?

we  know that

</span>since x is acute   0<x<<span>π/2
</span><span>then the trigonometric rations will be positive</span>

sin ²x+cos²x=1------------> cos²x=1-sin²x------->  cos²x=1-(3/5)²----> 1-(9/25)
cos²x=16/25----------> cos x=4/5

the answer part A) is 
cos x=4/5

tan x=sin x/cos x
so
tan x=(3/5)/(4/5)---------> tan x=3/4

the answer part B) is 
tan x=3/4
4 0
2 years ago
Points guys the first person to comment gets brainlest 25 points btw
nirvana33 [79]
Wowowowo i want pls thank you
4 0
2 years ago
Pls help give u brainlist
Elenna [48]

Answer:

The rate of change is \frac{7}{4} or 1.75. That shows that the cost per video game is $1.75

Step-by-step explanation:

The change in y over change of x or slope can be calculated using the equation:

m=\frac{y_{2} -y_{1} }{x_{2}-x_{1}  } so take the last two points: (10, 25) and (15, 33.75).

33.75-25=8.75

15-10=5

8.75/5=<u>1.75</u><u> </u><u>(7/4)</u>

x=video games

y=total cost

Since slope is change in y (cost) per change of x (video games), the answer is:

1.75 cost per video game

8 0
2 years ago
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