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Juliette [100K]
3 years ago
11

Graph -7x+5y=35 Please i need help

Mathematics
2 answers:
sergey [27]3 years ago
7 0

Answer:

Drag the two green points to (0, 7) & (-5,0).

Step-by-step explanation:

For your situation it looks like you're able to move the 2 points to graph it, so you would want to find 2 points that work for this equation.

We'll do this by substituting x and y in separately for 0, to find the y & x intercepts on the graph.

Point 1: x = 0

-7(0)+5y = 35

5y = 35

y = 7

(0, 7)

Point 2: y = 0

-7x+5(0) = 35

-7x = 35

x = -5

(-5, 0)

Lelu [443]3 years ago
5 0

Answer:

Look at the attached image for the answer.

<u><em>Brainliest please, I need a few more :)</em></u>

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3 years ago
A politician wants to estimate the proportion of constituents favoring a controversial piece of proposed legislation. suppose th
Volgvan

Answer:

We are given:

Confidence level = 99%. Therefore, the critical value at 0.01 significance level using the standard normal table is given below:

z_{\frac{0.01}{2}}=2.576

Margin of error is given in the question as:

E=0.05

Since the previous proportion is not given, therefore, we need to assume \hat{p} = 0.5

Therefore, the sample size is:

n=\hat{p}(1-\hat{p}) \left( \frac{z_{\frac{0.01}{2}} }{E} \right)

  =0.5(1-0.5) \left( \frac{2.576}{0.05} \right)

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  =663.6 \approx 664

Therefore, 664 sample observations are required.    

4 0
3 years ago
Plz help my with this!
Vera_Pavlovna [14]

Answer:

approx.  23

Step-by-step explanation:

4+9+10=23

6 0
3 years ago
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Soloha48 [4]
A

Because X isn’t repeated in W but there are repeats in the others.
5 0
3 years ago
If Joanne can paint a room in 3 hours and her sister Angela can paint the same room in 4 hours, how long (in h) would it take Jo
Gala2k [10]

Answer:

Step-by-step explanation:

If J can paint a room in 3 hours, in 1 hour she gets \frac{1}{3} of the job done.

If A can paint a room in 4 hours, in 1 hour she gets \frac{1}{4} of the job done. We need to find out how long it takes them if they paint together. The equation for this is:

\frac{1}{3}+\frac{1}{4}=\frac{1}{x} where x is the number of hours it takes them to get the job done together. Multiply everything through by 12x to get

4x + 3x = 12 so

7x = 12 and

x = 1.7 hours to get the room painted together.

7 0
3 years ago
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