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Sphinxa [80]
3 years ago
8

Help please i need the answer to this

Mathematics
2 answers:
tia_tia [17]3 years ago
8 0

Answer:

the answer is m=5

USPshnik [31]3 years ago
3 0

Answer:

5

Step-by-step explanation:

The slope is the one with the x next to it

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none of the above

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non of the above

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A school chorus has 90 sixth-grade students and 75 seventh-grade students. The music director wants to make groups of performers
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This is a timed test so I need help fast
FinnZ [79.3K]

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1st option

Step-by-step explanation:

(x²+x-6)/(x-7)≤0

x≤-3

2≤x≤7

These are the solutions you'll find solving the inequation

Answered by GAUTHMATH

3 0
3 years ago
The length of time to complete a door assembly on an automobile factory assembly line is normally distributed with a mean of 6.7
hram777 [196]
We need to work out the z-value of each question to work out the probability

Question a)

We have
X = 5 minutes
The mean, μ = 6.7 minutes
Standard deviation, σ = 2.2 minutes
z-score = (X - μ) / σ = (5 - 6.7) / 2.2 = -0.77

We want to find the probability of z < -0.77 so we read the z-table for the value of z on the left of -0.77 we have the probability P(z< -0.77) = 0.2206

The table is attached in picture 1 below

The probability of assembly time less than 5 minutes is 0.2206 = 22.06%

Question b)

z-score = (10-5) / 2.2 = 2.27

Reading the z-table for P(z<2.27) = 0.9884
The table reading is shown in the second picture below

The probability the assembly time will be less than 10 minutes is 0.9884

We can use this information to find the probability of the assembly time will be more than 10 minutes  = 1 - 0.9884 = 0.0116 = 1.16%

Question c)

The value of z between 5 minutes and 10 minutes is

P(-0.77<z<2.27) = P(z<2.27) - P(z< -0.77)
P(-0.77<z<2.27) = 0.9884 - 0.2206 = 0.7678 = 76.78%


6 0
3 years ago
Marco read that a honey bee can fly up to 2.548meyers per second. he rounded the number to 2.55. to witch place valuedid marcoro
Kay [80]
He rounded to the hundredths place.
4 0
4 years ago
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