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mr_godi [17]
2 years ago
8

I need help with question in photo

Mathematics
1 answer:
Rufina [12.5K]2 years ago
7 0

Answer:

14

Step-by-step explanation:

{x}^{2}  =  {4}^{2}  \\  = 16\\ 4y = 4 \times  - 3 \\ 4 \times  - 3 =  - 12 \\  16 -  - 12 =16 + 12  \\  -  \times  -  =  +  \\ 16 + 12 = 28 \\ 28 \div 2 = 14

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Maya is packing her backpack for hike. In one pocket, she puts in a 1/2 pound bag of trail mix,a water bottle weighing 2 1/8 pou
Rudik [331]

Total weight of three items is 2.875 pounds

<em><u>Solution:</u></em>

Given that,

Maya is packing her backpack for hike

From given,

pound\ bag\ of\ trail\ mix = \frac{1}{2}\ pounds

water\ bottle = 2\frac{1}{8}\ pounds = \frac{17}{8}\ pounds\\\\flashlight = \frac{1}{4}\ pounds

<em><u>How much weight do these three items add to her backpack?</u></em>

Add all these together

Total\ weight = \frac{1}{2} + \frac{17}{8} + \frac{1}{4}\\\\Total\ weight = \frac{1 \times 4}{2 \times 4} + \frac{17}{8} + \frac{1 \times 2}{4 \times 2}\\\\Total\ weight = \frac{4}{8} + \frac{17}{8} + \frac{2}{8}\\\\Total\ weight = \frac{23}{8} = 2.875

Thus total weight of three items is 2.875 pounds

7 0
3 years ago
Explain the amendment process in your own words. Or, you can use the following chart to fill in details about the amendment proc
crimeas [40]

Answer:

i can answer if you tell me which amendment????

Step-by-step explanation:

8 0
2 years ago
Which inequality has a closed circle when it is graphed on a number line?
Natalka [10]

Answer:

the answer is D) X _> 3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find X when y= -2 <br> Thank you for your help and have a blessed day
Andreas93 [3]

Answer:

x = -5

Step-by-step explanation:

4x+y=2(x+3y)\\\\4x-2=2(x+3(-2))\\\\4x-2=2(x-6)\\\\4x-2=2x-12\\\\4x-2+2=2x-12+2\\\\4x=2x-10\\\\4x-2x=2x-2x-10\\\\2x=-10\\\\\frac{2x=-10}{2}\\\\\boxed{x=-5}

Hope this helps.

8 0
2 years ago
Read 2 more answers
Trials in an experiment with a polygraph include results that include cases of wrong results and cases of correct results. Use a
hram777 [196]

Answer and Step-by-step explanation:

This is a complete question

Trials in an experiment with a polygraph include 97 results that include 23 cases of wrong results and 74 cases of correct results. Use a 0.01 significance level to test the claim that such polygraph results are correct less than 80​% of the time. Identify the null​hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. Use the​ P-value method. Use the normal distribution as an approximation of the binomial distribution.

The computation is shown below:

The null and alternative hypothesis is

H_0 : p = 0.80

Ha : p < 0.80

\hat p = \frac{x}{ n} \\\\= \frac{74}{97}

= 0.7629

Now Test statistic = z

= \hat p - P0 / [\sqrtP0 \times (1 - P0 ) / n]

= 0.7629 - 0.80 / [\sqrt(0.80 \times 0.20) / 97]

= -0.91

Now

P-value = 0.1804

\alpha = 0.01

P-value > \alpha

So, it is Fail to reject the null hypothesis.

There is ample evidence to demonstrate that less than 80 percent of the time reports that these polygraph findings are accurate.

5 0
3 years ago
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