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NARA [144]
3 years ago
6

3(x-7) ≥ -4x + 7 , what is the value of x

Mathematics
2 answers:
Nonamiya [84]3 years ago
5 0
X>4 I think here’s a tip tho inserted of using this app you can use apps like Socratic it’s way better
Anna [14]3 years ago
4 0

Answer:

X≥4

Step-by-step explanation:

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According to a "how to stop bullying" Web site, 15% of students report experiencing bullying one to three times within the most
AlekseyPX

Answer:

His 95% confidence interval is (0.065, 0.155).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 186, \pi = 0.11

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.11 - 1.96\sqrt{\frac{0.11*0.89}{186}} = 0.065

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.11 + 1.96\sqrt{\frac{0.11*0.89}{186}} = 0.155

His 95% confidence interval is (0.065, 0.155).

4 0
3 years ago
3. A toy car is traveling with a velocity of 4 m/s and has a mass of 1120g. What is the car's
adell [148]
Kinetic Energy
=
1
2
m
v
2

=
1
2
1120
⋅
40
2
=
896000
J
=
8.96
⋅
10
5
J
5 0
3 years ago
What is the value for m and n?
Inga [223]

Answer:

M = 8 N = 10

Step-by-step explanation:

Multiplying exponents adds the exponent, meaning that inside of the brackets, it is a^4 * b^5. Multiply the exponents by two because you are squaring the entire equation. Therefore, m=8 and n=10

7 0
2 years ago
Please, help I don’t understand what im supposed to do.
Blizzard [7]

Answer:

16,800 votes.

Step-by-step explanation:

In the singing competition 42,000 votes were counted.

The winner received 3/5 of the votes.

The part of the votes that the winner did not receive was 1 - 3/5 = 2/5

So the winner did not receive 2/5 of 42,000 votes which is equivalent to:

\frac{2(42,000)}{5} = 16,800 votes.


3 0
3 years ago
Which of the following demonstrates the Commutative Property of addition?
Crazy boy [7]

Answer:

To my calculations, I think its the first one, 4+2=2+4

I hope this helps! ^^

Apologizes if you get it wrong-

Step-by-step explanation:

5 0
3 years ago
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