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2 years ago

When you round a number, what should you do with

Mathematics

1 answer:

shusha [124]2 years ago

4 0

Answer:

In general, to round to a certain place value, look at the digit to the right of that place value and make a decision. Example: 5.1837 to the nearest hundredth would be 5.18 (round down since 3<5 ), but to the nearest thousandth, it is 5.184 (round up because 7≥5 ).

Step-by-step explanation:

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20 Points and markwd brainliest

liberstina [14]

Answer:

Step-by-step explanation:

4 0

2 years ago

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Find the equation of the line that is perpendicular to the line

ddd [48]

Answer:

$y=-x+16$

Step-by-step explanation:

Hi there!

What we need to know:

Linear equations are typically organized in slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when x is 0)
Perpendicular lines always have slopes that are negative reciprocals (ex. 3 and -1/3, 5/6 and -6/5, etc.)

1) Determine the slope (m)

y=x-9

Rewrite the equation

y=1x-9

Now, we can identify clearly that the slope of the line is 1. The negative reciprocal of 1 is -1, so therefore, the slope of a perpendicular line would be -1. Plug this into $y=mx+b$ :

$y=-1x+b\\y=-x+b$

2) Determine the y-intercept (b)

$y=-x+b$

Plug in the given point (7,9) and solve for b

$9=-7+b$

Add 7 to both sides to isolate b

$9+7=-7+b+7\\16=b$

Therefore, the y-intercept is 16. Plug this back into $y=-x+b$ :

$y=-x+16$

I hope this helps!

6 0

2 years ago

What fraction names point A on the number line?

erma4kov [3.2K]

One is the fraction name point on the number line

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3 years ago

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I need all the answers please help me and show me step by step...please...

Daniel [21]

1. No. This is because the system does not go up equally every time. There is no common difference

2. Yes. The common difference is 12 and it goes up by that much every single number.

3. The common difference is 3. This is because they all have a common difference and it increases by 3.

4. The common difference is -6. This is because every time the number goes down, it has a common difference of -6. The distance from each ascending or descending number in this pattern is 6, but it descends by default, so it would be negative.

5. The common difference is -10, and the next three terms are -20, -30, and -40. The common difference is -10 because the distance from each ascending or descending number is 10, but it descends by itself versus ascending, making the difference negative. The last three numbers are -20, -30, and -40 because you subtract 10 each time.

6. The common difference is 2 and the last 3 numbers are 92, 90, and 88. I think you get how this goes now.

7. Recursive formula: a1=a2-5 .Explicit formula: f(n)=12-5(n-1) 20th term: -83: I seriously do not want to have to explain this. The recursive formula shows term 1 is equal to term 2 plus the common difference. The explicit formula shows the first term, the common difference, and one less than the number term. The 20th term is me just taking away 5 over and over and over again.

8. recursive formula: a1=a2+3 . Explicit formula: f(n)=1+3(n-1) 32nd term: 94

This was really hard to explain. The recursive formula shows term 1 is equal to term 2 plus the common difference. The explicit formula shows the first term, the common difference, and one less than the number term. The 32nd term is me just adding 3 over and over and over again.

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2 years ago

This is a test get it right I want a good grade

Fittoniya [83]

Answer:

$\frac{120}{6} \geq \frac{200}{8}$ $\frac{120}{6}$ is the better unit price.

Step-by-step explanation:

120 is the better unit price because if you divide 120 divided by 6 you get 20 and if you divide 200 divided by 8 you get 25 so then you would pick the cheapest one because of its price and amount.

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2 years ago