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miss Akunina [59]
3 years ago
13

HELP ME PLS IM HELLA DUMB

Mathematics
1 answer:
Anna [14]3 years ago
6 0
Ur not dumb!!! i graphed the line for u here. i suggest watching some khan academy videos for extra practice!

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After riding a bike 9 miles,Alex’s total time was 40 1/2 minutes. Find his time per mile.
r-ruslan [8.4K]
40.5/9= 4.5 minutes per mile.
5 0
2 years ago
What would f(-5.2) equal if f(x)=[[x]]​
ira [324]

Answer:

gfjhhkuk

Step-by-step explanation:

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srry i just need points for my testt :((

8 0
3 years ago
When Hailey commutes to work, the amount of time it takes her to arrive is normally distributed with a mean of 21 minutes and a
miskamm [114]

Answer: 135 days

Step-by-step explanation:

Since the amount of time it takes her to arrive is normally distributed, then according to the central limit theorem,

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = standard deviation

From the information given,

µ = 21 minutes

σ = 3.5 minutes

the probability that her commute would be between 19 and 26 minutes is expressed as

P(19 ≤ x ≤ 26)

For (19 ≤ x),

z = (19 - 21)/3.5 = - 0.57

Looking at the normal distribution table, the probability corresponding to the z score is 0.28

For (x ≤ 26),

z = (26 - 21)/3.5 = 1.43

Looking at the normal distribution table, the probability corresponding to the z score is 0.92

Therefore,

P(19 ≤ x ≤ 26) = 0.92 - 28 = 0.64

The number of times that her commute would be between 19 and 26 minutes is

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8 0
3 years ago
Square root 15*3sqyare root 81y
Deffense [45]
<span>No simplification exists, Root remains :
</span>sqrt(15y) 
7 0
3 years ago
What is the value of 8(15-4)/4^2-5
kolbaska11 [484]

Answer: 0.5


Step-by-step explanation:

Android calculator accepts the above question via copy and paste, and gives 0.5


The point of this question is to try to discover whether or not you know what the expression means.


Rewriting it as (8(15-4)/(4×4)) - 5 would show that you know the meaning. You can check that by feeding it into the calculator as well.

4 0
3 years ago
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