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inessss [21]
2 years ago
9

Write an equation for this word sentence: one fifth of a number equals 16.

Mathematics
2 answers:
horsena [70]2 years ago
8 0

Answer: x / 5 = 16

x = 80

Airida [17]2 years ago
7 0
Answer is 1/5n = 26
Step by step
Using n=number
One fifth of a number is
1/5n
Equals 16
=16

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What is the value of f^-1(-3)?​
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Flip the curve over <em>y</em><em> </em><em>=</em><em> </em><em>x</em><em> </em>then observe what is y when x = -3. You will find that f^{-1}(x)=1.5.

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The perimeter of this shape is 29 cm.<br> What the value of x?
lesya692 [45]

Answer:

X=7

Step-by-step explanation:

So first add them all up

x-2+2x+x+3=4x+1

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2 years ago
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3 years ago
Each of 100 students in the Allen School can only take 1 CSE class each, between the four classes CSE 311, CSE 312, CSE 331, and
Naddika [18.5K]

Answer:

P(a=31,b=39,c=7,d=23) = 0.000668

Step-by-step explanation:

Sample space, n = 100

Let the number of students signed up for CSE 311 = a

Let the number of students signed up for CSE 312 = b

Let the number of students signed up for CSE 331 = c

Let the number of students signed up for CSE 332 = d

Probability of taking CSE 311, P_a = 0.3

Probability of taking CSE 312, P_b = 0.4

Probability of taking CSE 331, P_c = 0.1

Probability of taking CSE 332, P_d = 0.2

P(a,b,c,d) = \frac{n!}{a! b! c! d!} p_a^{a}  p_b^{b}  p_c^{c}  p_d^{d} \\P(a=31,b=39,c=7,d=23) = \frac{100!}{31! 39! 7! 23!} *  0.3^{31} * 0.4^{39} * 0.1^{7}  0.2^{23}\\P(a=31,b=39,c=7,d=23) = \frac{4.58*10^{111}}{2.13*10^{56}* 5040 }* (1.57*10^{-55})\\P(a=31,b=39,c=7,d=23) = 0.000668

3 0
3 years ago
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