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Alex_Xolod [135]
2 years ago
15

1 * 8 + 8 - 8 + 2 - 3 + 4

Mathematics
1 answer:
saveliy_v [14]2 years ago
3 0

Answer: 11

Step-by-step explanation:

OK first your gonna do 1*8 which is 8 and then 8+8 which is 16 - 8 which is 8 then + 2 which is 10 then -3 which is 7 then after that + 4 which is 11

You might be interested in
We are studying the proportion of cities that have private garbage collector. We want a maximum error of 0.10 and a 95% confiden
True [87]

Answer:

The minimum number of cities we need to contact is 96.

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 interval 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}.

The margin of error is:

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

95% confidence interval

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.

In this problem, we have that:

p = 0.5, M = 0.1

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

0.1 = 1.96*\sqrt{\frac{0.5*0.5}{n}}

0.1\sqrt{n} = 0.98

\sqrt{n} = 9.8

(\sqrt{n})^{2} = (9.8)^{2}

n = 96

The minimum number of cities we need to contact is 96.

8 0
2 years ago
During the financial crisis of 2008, the price of a barrel of Brent crude oil fell from a high of $140 per barrel to around $50
andriy [413]

Answer: 35.7%

Step-by-step explanation:

140$ / 100% = 1.4$ per 1%

Next 50$ / 1.4% = 35.71

Round 35.71 to closest tenth so it would be 35.7

3 0
3 years ago
The meeting had 30 people, which is five-sixths of the club. How many people are in the club?
Firlakuza [10]
30 x 5/6 = 25

The answer is 25 people

I hope this helped. Let me know if you have any other questions!
3 0
3 years ago
Read 2 more answers
What is the area of the rectangle, in square feet?<br> 29<br> 58<br> 120<br> 180
Fittoniya [83]

Answer:

180

Step-by-step explanation:

Base x Height

So 9 x 20 to get 180

3 0
2 years ago
Read 2 more answers
Given the inequality below:<br><br> 3x-y&gt;4<br><br> Which is the graph of the solution set?
OLga [1]

Answer:

A shaded region below a dashed line (y <3x-4)

Step-by-step explanation:

For linear inequalities, we have shaded regions below or above a dashed or solid or continuous line represented by an inequality.

Their graphs are called region graphs. Those regions are only enclosed ones if before the sign of inequality it is included both variables. Like x²+y²<1, |x+y|<1, etc.

In this case what we have here is an open region, as the graph below shows.

3x-y>4 =-y>4-3x∴y<3x-4

Setting a value for x

3x-4=0

3x=4

3x/3=4/3

x=4/3 (slope)

(4/3,0)

6 0
3 years ago
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