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mash [69]
3 years ago
7

( 17x + 4y + 1 ) + ( 3x - 15y + 2)

Mathematics
1 answer:
Readme [11.4K]3 years ago
5 0

Answer:

20x-11y+3

Step-by-step explanation:

(17x +3x)+(4y-15y)+(1+2)

20x-11y+3

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Solve the system of linear equations by graphing. Round the solution to the nearest tenth.
jeyben [28]

Answer:

The approximate solution to the system is (1.2, 4.4)

x = 1.2 and y = 4.4

Step-by-step explanation:

The solution of the system of linear equations equation y = –0.25x + 4.7 and y = 4.9x – 1.64 is shown in the attached graph. The red line represents the equation y = –0.25x + 4.7 and the blue line represents the equation  = 4.9x – 1.64.

The solution of the system of equations is their point of intersection shown on the graph.

The point of intersection is (1.231, 4.392). To the nearest tenth, it is (1.2, 4,4). So x = 1.2 and y = 4.4.

So the approximate solution to the system is (1.2, 4.4)

6 0
3 years ago
Read 2 more answers
2/7 of 9/11 in simplest form
kozerog [31]
The answer is
23/10^2

6 0
3 years ago
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Write the equation.Please help
Mamont248 [21]
Y = 3x is the answer
I did the math
8 0
2 years ago
A human resources representative claims that the proportion of employees earning more than $50,000 is less than 40%. To test thi
bearhunter [10]

Answer:

The statistic for this case would be:

z=\frac{\hat p -p_o}{\sqrt{\frac{\hat p(1-\hat p)}{n}}}

And replacing we got:

z= \frac{0.436-0.4}{\sqrt{\frac{0.436*(1-0.436)}{700}}}= 1.92

Step-by-step explanation:

For this case we have the following info:

n =700 represent the sample size

X= 305 represent the number of employees that earn more than 50000

\hat p=\frac{305}{700}= 0.436

We want to test the following hypothesis:

Nul hyp. p \leq 0.4

Alternative hyp : p>0.4

The statistic for this case would be:

z=\frac{\hat p -p_o}{\sqrt{\frac{\hat p(1-\hat p)}{n}}}

And replacing we got:

z= \frac{0.436-0.4}{\sqrt{\frac{0.436*(1-0.436)}{700}}}= 1.92

And the p value would be given by:

p_v = P(z>1.922)= 0.0274

4 0
3 years ago
If the 4th and 7th terms of a geometric sequence are 75 and 600, what is the first term?​
Anika [276]

Answer:

probably 8 lol

Step-by-step explanation:

i just did 600/75 sorry if it's wrong

3 0
3 years ago
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