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weqwewe [10]
3 years ago
11

Math help please =)

Mathematics
1 answer:
a_sh-v [17]3 years ago
7 0
2x - 3 < 11 or 8x -10 < 82:  <span>X < 23/2
<span>
Part 1</span>
</span>2x-3<11
Add 3 both sides
2x-3+3<11+3
Refine
2x<14
Divide by 2 on both sides
2x / 2    /   14 / 2
Refine
x < 7
<span>
Part 2</span>
8x-10<82
Add 10 to both sides
8x-10+10<82+10
Refine
8x<92
Divide by 8
8x / 8   /   92 / 8
Refine
x < 23 / 2
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What is the value of 5t – 5? A. 0 B. 20 C. 45 D. 50
poizon [28]
Factor 5 de 5t - 5
5(t - 1)

¡Espero que esto ayude! :)
6 0
3 years ago
Read 2 more answers
A Starbucks coffee shop serves an average of 3500 customers per day, with a standard deviation of 250. What is the probability t
castortr0y [4]

Answer:

P(3300  

And we can find this probability with this difference:  

P(-0.8  

Step-by-step explanation:

Previous concepts  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem  

Let X the random variable that represent the amount of cofee shops of a population, and for this case we know the distribution for X is given by:  

X \sim N(3500,250)  

Where \mu=3500 and \sigma=250  

We are interested on this probability  

P(3300  

And the best way to solve this problem is using the normal standard distribution and the z score given by:  

z=\frac{x-\mu}{\sigma}  

If we apply this formula to our probability we got this:  

P(3300  

And we can find this probability with this difference:  

P(-0.8  

6 0
3 years ago
Read 2 more answers
Water is draining from an aquarium at a rate of
riadik2000 [5.3K]
Answer : 15 gallon per minute
6 0
3 years ago
1. What is the value of x?<br> х<br> 6<br> 00<br> A. 64<br> B. 10<br> C. 100<br> D. 36
Anton [14]

Answer: 10

Step-by-step explanation:

8 0
3 years ago
PLEASE ANSWER + BRAINLIEST!!!
Arada [10]
Very simple

? – (20 – 4x – 5x2) = 20 – 7x2, so ?  = 20 – 7x2 <span>+ (20 – 4x – 5x2)
</span>?  = 20 – 7x2 <span>+ (20 – 4x – 5x2)=20-7x²+20-4x-5x²=40-12x²-4x
</span>the answer is <span>C. 40-4x-12x^2</span>
5 0
3 years ago
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