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Delicious77 [7]
3 years ago
12

Which inequality is a true statement?

Mathematics
2 answers:
tatiyna3 years ago
5 0

Answer:-4 > -5

Step-by-step explanation:

Firdavs [7]3 years ago
4 0

Answer:

b -4 <-5

Step-by-step explanation:

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Two pounds of cashews shown cost $19, and 8 pounds cost $76. Show that the relationship between the number of pounds of cashews
inessss [21]
You just have to divide 76 by 8 to find the value of one pound of cashews. This can be done also by dividing 19 by 2.

5 0
3 years ago
You have just used the network planning model and found the critical path length is 30 days and the variance of the critical pat
ollegr [7]

Answer: The probability that the project will be completed in 33 days or less is equal to<u> </u><u>0.73</u> .

Step-by-step explanation:

We assume that this is a normally distribution.

Given : The critical path length is 30 days .

i.e. Population mean = \mu=30

Variance : \sigma^2=25

Then, standard deviation : \sigma=\sqrt{25}=5

Z-score :  z=\dfrac{x-\mu}{\sigma}

The value of z corresponding to 33 = z=\dfrac{33-30}{5}=0.6

Now, the p-value = P(x\leq33)=P(z\leq0.6)=0.7257469\approx0.73

Hence, the probability that the project will be completed in 33 days or less is equal to 0.73.

6 0
3 years ago
Read 2 more answers
Solve the equation on the interval [0, 2π).
Elden [556K]

Answer:

x = pi/2..only

Step-by-step explanation:

The equation states that...,

tan^2x.sin x = tan^2x

;we simplify the equation by dividing both sides by tan^2x...which then leaves our equation as,

; sin x = 1

; x = sin^-1 (1)

; Hence x = pi/2

5 0
3 years ago
Joe heard from a reliable source that only 22% of people actually sleep 8 hours or more per night. You do a survey and find 58 o
Juliette [100K]

Answer:

95% Confidence interval:  (31.32%,47.04%)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 148

Number of people who sleep for 8 hours or longer, x = 58

\hat{p} = \dfrac{x}{n} = \dfrac{58}{148} = 0.3918

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.3918\pm 1.96(\sqrt{\dfrac{0.3918(1-0.3918)}{148}})\\\\ = 0.3918\pm 0.0786\\\\=(0.3132,0.4704)=(31.32\%,47.04\%)

(31.32%,47.04%)  is the required 95% confidence interval.

8 0
3 years ago
A bottle of window cleaner is $3.99. It is on sale for 10% off and you can save an additional 5% using your credit card. What is
wariber [46]
If I did the math correct, the answer is C: 3.63
8 0
3 years ago
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