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Charra [1.4K]
3 years ago
13

Will mark brainliest and give 11 points if you give explanation

Mathematics
1 answer:
pshichka [43]3 years ago
6 0

Answer:

both A and E

Step-by-step explanation:

because most of 70% of the water is sea salt and clean water comes from frozen underground.

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What are the solution(s) for the quadratic equation?<br><br> Y=5x^2-9x+4<br><br> Show work
kakasveta [241]

Let's see

\\ \rm\rightarrowtail 5x^2-9x+4=0

\\ \rm\rightarrowtail 5x^2-5x-4x+4=0

\\ \rm\rightarrowtail 5x(x-1)-4(x-1)=0

\\ \rm\rightarrowtail (5x-4)(x-1)=0

\\ \rm\rightarrowtail x=4/5,1

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2 years ago
How do I find this formula?<br><br> Trapizoid:b1=3 m;b2=4 m;A=7m2
DochEvi [55]
That depends. What are you trying to find? The formula for the perimeter? The formula for the area?
8 0
3 years ago
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What is the z-score for a patient who takes 7 days to recover? (choose the closest possibility.)
Kisachek [45]

Based on the time it took the patient to recover and the mean and standard deviation, the z-score is 1.5.

<h3>What is the z-score?</h3>

The z-score for this patient who takes 7 days to recover can be found as:

= (Time taken to recover - Mean) / Standard deviation

Solving for the z-score gives:

= (7 - 5.2) / 1.2

= 1.8 / 1.2

= 1.5

The first part of the question is:

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.2 days.

Find out more on the z-score at brainly.com/question/25638875

#SPJ4

5 0
2 years ago
two years of local internet service cost $685 including the installation fee of $85 what is the monthly fee?
zimovet [89]
2 years is the same as 24 months, so the equation would be:
685 = 24x + 85, where x is the monthly fee.
600 = 24x
600/24 = x
x = 25
The monthly fee is $25.
7 0
3 years ago
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Stuck on this one, can somebody help me
melamori03 [73]

Answer:

HI ≈ 12.22

Step-by-step explanation:

tan I = GH / HI

tan 42° = 11 / HI = 0.90

HI = 11/0.90 = 12.22

3 0
3 years ago
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