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Elena L [17]
3 years ago
7

Can someone help ne with this question please

Mathematics
1 answer:
bezimeni [28]3 years ago
3 0

Answer: 34

Step-by-step explanation: 2/5 = 4/10 = 12/30  This means that the machine cuts out 12m lengths for every roll now you just take 400/12 and you get your answer. Now 400/12 will be 33,333... So just round it up to how many she needs aka 34

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here's a graph of a linear function. write the equation that describes that function. express it in slope intercept form. HELP!
IRISSAK [1]

Answer:

y=\frac{3}{4}x+2

Step-by-step explanation:

So when you express a linear function in slope-intercept form it's given in the form of y=mx+b, where m is the slope, and b is the y-intercept. This is because as x increases by 1, the y-value will increase by m (because multiplication), and since the slope is defined as rise/run, the rise will be m, and run will be 1, giving you a slope of m/1 or m. The reason b is the y-intercept, is because whenever the linear function crosses the y-axis, the x-value will always be 0. Meaning that mx will be 0 because m * 0 will equal 0... and that leaves b by it self, so b will determine the y-intercept.

So if you look at the graph, the linear function crosses the y-axis as (0, 2) so the value of b will be 2. This gives you the equation y=mx+2.

Now to calculate the slope, we can take any two points and see how much the rise was and how much the run was. It can also be more formally defined in the equation: y=\frac{y_2-y_1}{x_2-x_1}. So let's take the points (0, 2) and (8, 8). As you can see the x-value increases by 8 or "ran" by 8, and the y-value increased by 6. So the rise over run in this case is 6/8 which can simplified as 3/4. That is the slope. This gives you the complete equation of: y=\frac{3}{4}x+2

6 0
2 years ago
The graph below shows a line of best fit for data collected on the average high temperature in El Calafate as a function of the
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Answer:

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4 0
3 years ago
Are the speeds 30 miles per 3 hours and 10 miles per hour the same? <br><br> I need help :( ↑
statuscvo [17]

Answer:

Yes they are the same

Step-by-step explanation:

So we have 10mph, If you stay at that speed for another 2 hours you will reach 30 miles. If you still don't understand please don't hesitate to ask for help.

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Question 4(Multiple Choice Worth 4 points)
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Answer:

C. Males Prefer thriller movies. I'm pretty sure. I'd need the photo.

Step-by-step explanation:

If you look at the graph you'll see that 56 males like thriller while only 18 of women like it. These two data points have a difference of 38, making it the largest difference than any other category, therefore, its the strongest.  

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2 years ago
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A circular track will be built around a square playing field that is 100 ft x 100 ft. What is the area of the smallest track tha
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Answer:

2501 ft2

Step-by-step explanation:

The other answers are in in2 or in. In this case you would not be looking for an answer in in2 or in.

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