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Scrat [10]
2 years ago
6

If you know the names of the remaining nine students in the spelling​ bee, what is the probability of randomly selecting an orde

r and getting the order that is used in the spelling​ bee?
Mathematics
1 answer:
VARVARA [1.3K]2 years ago
3 0
It is either 1/81 or 1/162
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Can you please help me
nika2105 [10]
I believe it’s 0.5 :)
4 0
2 years ago
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F (x) = x^2 + 2x - 5<br> g(x) = 2x + 4<br> What is (f• g)(x)?
Vilka [71]

Answer:

Step-by-step explanation:

This is a composite function, f(g(x)). This means, working from the inside function to the outside, we will take the function g and plug it in for x in the f function. g(x) = 2x + 4. We will plug that into f(x) and evaluate f(2x+4):

f(g(x))=(2x+4)^2+2(2x+4)-5 and I imagine your teacher has you simplify completely. We FOIL and distribute to get

f(g(x))=4x^2+16x+16+4x+8-5 which, by combining like terms, give us

f(g(x))=4x^2+20x+19

5 0
3 years ago
A ball is thrown from an initial height of 3 feet with an initial upward velocity of 37 fts. The ball's height h (in feet) after
tatyana61 [14]

Answer:

t=(37+root89)/32,(37-root89)/32

Step-by-step explanation:

Solve the equation:

23=3+37t-16t^2

5 0
2 years ago
Josh works h hours in a week. To find his weekly pay he multiplies his hours by his pay of $30 per hour and adds $5 for his sale
OleMash [197]
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3 0
3 years ago
4x+11y=7<br><br>4x+3y=-1<br>what are the steps
andreev551 [17]

Answer:

x = -1, y = 1

Step-by-step explanation:

Given that:

\begin{bmatrix}4x+11y=7\\ 4x+3y=-1\end{bmatrix}

Isolate x for 4x + 11y = 7 which ⇒ x=\frac{7-11y}{4}

Substitute x=\frac{7-11y}{4} into the equation: which is:

\begin{bmatrix}4\cdot \frac{7-11y}{4}+3y=-1\end{bmatrix}

Drop Down to:

\begin{bmatrix}7-8y=-1\end{bmatrix}

Isolate y for 7-8y = -1: y = 1

Thus, x=\frac{7-11y}{4}

Substitute y = 1

Hence,

x=\frac{7-11\cdot \:1}{4}=-1

Solution ⇒ x = -1 and y = 1

<u><em>~learn with lenvy~</em></u>

6 0
2 years ago
Read 2 more answers
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