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cestrela7 [59]
3 years ago
14

F(x) = √(3 - x)f(-1) =A) 1B) 2C) undefinedD) √2

Mathematics
2 answers:
Oliga [24]3 years ago
7 0

Answer:

b

Step-by-step explanation:

mixas84 [53]3 years ago
3 0

Answer:

B

Step-by-step explanation:

To find the value of f(x) at x=-1, we substitute x=-1 and simplify.

f(-1)=\sqrt{3-(-1)}=\sqrt{3+1)} =\sqrt{4}  =2

f(-1)=2.

Answer B.

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John earns x dollas per hour. petra earn 2 dollars per hour more than him. How much do they earn altogether per hour?
satela [25.4K]
2x + 2 dollars, because you're adding x and x + 2
4 0
3 years ago
Solve for x in the given interval.<br><br> sec x= -2√3/3, for π/2 ≤x≤π
drek231 [11]

Answer:

b. x=\frac{5\pi}{6}

Step-by-step explanation:

The given function is

\sec x=-\frac{2\sqrt{3} }{3},\:\:for\:\:\frac{\pi}{2}\le x \le \pi

Recall that the reciprocal of the cosine ratio is the secant ratio.

This implies that;

\frac{1}{\cos x}=-\frac{2\sqrt{3} }{3}

\Rightarrow \cos x=-\frac{3}{2\sqrt{3} }

\Rightarrow \cos x=-\frac{\sqrt{3}}{2}

We take the inverse cosine of both sides to obtain;

x=\cos^{-1}(-\frac{\sqrt{3}}{2})

x=\frac{5\pi}{6}

4 0
3 years ago
What is 23/6 as a mixed number?
saveliy_v [14]
23/6 as a mixed fraction is 3(5/6)
7 0
3 years ago
Read 2 more answers
If you are paid $5.50/hour for mowing yards, and you take 1 3 3 hours to mow a yard, how much money are you owed
mamaluj [8]
The correct question is
<span>If you are paid $5.50/hour for mowing yards, and you take 3 1/3 hours to mow a yard, how much money are you owed
see the attached figure

we know that
3 1/3 hours-----> (3*3+1)/3----> 10/3 hours
Multiply </span>$5.50/hour by (10/3) hour
so
5.5*10/3----> $18.33

the answer is
$18.33

6 0
3 years ago
I need help in this question please help me!:)
anastassius [24]

Answer:

(0,4) is the y intercept for function A

(0,3) is the y intercept for function B

so function A has the greatest y intercept

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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