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Aleks04 [339]
2 years ago
7

Which values are solutions to the inequality below?

Mathematics
2 answers:
goldenfox [79]2 years ago
6 0

Answer:

80, 75

Step-by-step explanation:

\sqrt{x} < 9

x < 9²

x < 81

Thus, 8 is lesser than 81. 80 and 75 are the only numbers lesser than 81 so they are the answer.

lozanna [386]2 years ago
3 0

Answer:

is 5 i hope it helps

Step-by-step explanation:

okay remember that this < stand for less numbers

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Answer:

ok dude I will study this

Step-by-step explanation:

then I will answer in a few minutes

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2 years ago
Charles has $20 to spend at the bakery he wants to buy six cupcakes and a pie. The pie costs
Oduvanchick [21]
The most he can buy for each cupcake is 1.25
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3 years ago
Are you getting enough sleep? Many kids aren’t getting enough sleep, and TV might be part of the problem. Among 2002 randomly se
Naya [18.7K]

Using the z-distribution, it is found that the lower bound of the 99% confidence interval is given by:

d. 68.39%.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 99% confidence level, hence\alpha = 0.99, z is the value of Z that has a p-value of \frac{1+0.99}{2} = 0.995, so the critical value is z = 2.575.

The sample size and estimate are given by:

n = 2002, \pi = 0.71

Hence, the lower bound is given by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.71 - 2.575\sqrt{\frac{0.71(0.29)}{2002}} = 0.6839

Hence the lower bound is of 68.39%, which means that option D is correct.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0
2 years ago
I don’t know how to answer this?
dalvyx [7]
Answer: a bigger or equal to 20

Explanation:

2a/5 - 2 _> a/4 + 1

8a/20 - 40/20 _> 5a/20 + 20/20

8a - 40 _> 5a + 20

3a _> 60

a _> 20
3 0
3 years ago
Read 2 more answers
Please help if you could
Goshia [24]

Answer:

f(x)= 6x+9....

Step-by-step explanation:

The given equation is:

y-6x-9=0

Add 6x+9 at both sides:

y-6x-9+6x+9=0+6x+9

Solve the like terms:

on the L.H.S -6x will be cancelled out by +6x and -9 will be cancelled out by +9

y=6x+9

Now convert it in function notation:

f(x)=y

f(x)= 6x+9....

3 0
3 years ago
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