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IrinaVladis [17]
3 years ago
6

What are the x- and y-interepts of the graph of 5x-4y=20?

Mathematics
1 answer:
77julia77 [94]3 years ago
8 0

Answer: x=4,y=-5

Step-by-step explanation:

Equation: 5x-4y=20

To find the x intercept make y=0 so ur left with

1)5x-4(0)=20

Then you can solve x from here

2) 5x=20

Because -4 * 0 = 0

3) x= 20/5

Because we want x by itself so we divide 5 on both side so the 5 cancels out on the left side

4) x=4

Because 20/5=4

———————————————-

You do the same thing for y make x equal to zero and that’s how you find it

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Emily ran her first lap in 75 seconds she ran her second lap in 69 seconds using percentages how much better was her second lap
julsineya [31]

Answer:

Her second lap was <u>8%</u> better when compared to her first lap.

Step-by-step explanation:

Given:

Emily ran her first lap in 75 seconds she ran her second lap in 69 seconds.

Now, to find how much better was her second lap when compared to her first lap.

Emily ran her first lap in 75 seconds.

Emily ran her second lap in 69 seconds.

So, we get the difference in seconds:

75-69=6\ seconds.

<u><em>Thus, in her second lap she was 6 seconds better than first.</em></u>

Now, to get the percentage of her first lap better than second:

\frac{6}{75}\times 100

=0.08\times 100

=8\%.

Therefore, her second lap was 8% better when compared to her first lap.

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3 years ago
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marysya [2.9K]
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4 0
3 years ago
Using sine and cosine, explain how you know where the graph of tangent will
notsponge [240]

Remember how the tangent function is defined as

\frac{sinx}{cosx}

Now where exactly are the vertical assymptotes? Well, where cosx = 0, because  anything over 0 is undefined, and where a value is undefined, you are required to draw  a vertical assymptote.  

Now where exactly are the x interecepts? Well, where sinx = 0, because remember, an x-intercept  is where y = 0, or where it crosses the x-axis, meaning where the tangent function is equal to 0.

So the x-intercepts are at where sinx = 0.

4 0
2 years ago
Grant can pick 9 tomatoes in 12 minutes. How many tomatoes can grant pick in one hour?
blagie [28]

Answer:

45 tomatoes

Step-by-step explanation:

1 hour = 60 minutes

60 ÷ 12 = 5

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3 years ago
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3 years ago
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