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3 years ago

What are these numbers rounded to the nearest tenth. Plz help

Mathematics

1 answer:

NeTakaya3 years ago

8 0

Step-by-step explanation:

1) 339.1

2) 615.4

3) 401.9

4) 2210.6

5) 2769.5

all you need to do is see if the numbers (after decimal) right after is bigger or smaller that 5. If it is greater that 5, then you add 1 to the number before it. (Ex: round 17.26 to nearest tenth, 17.3) if it is smaller then 5, it stays the same, you just take off the other number. (Ex: round 17.21 to nearest tenth, 17.2) harder to explain than I thought it would

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A)0.5<br> B)2.5<br> C)-0.5<br> D)-2.5

7nadin3 [17]

Answer:

B)2.5

Step-by-step explanation:

When x = 3 the actual = 6

Residual = actual - predicted = 6 - 3.5 = 2.5

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3 years ago

staircase of steps in a swimming pool has a vertical rise of 14 inches per step and a landing of 20 inches.

Jlenok [28]

I think the question for this problem is to find the slope of the staircase. The slope is a ratio of change of the y-coordinates and x-coordinates of points. It is written as Δy/Δx especially in analytical geometry. It could also be simply the ratio of the rise or vertical height to the run or horizontal length.

Therefore, the slope of the stair case is

Slope = rise/run = 14/20 = 0.7

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3 years ago

If the line passing through the points (a, 1) and (−2, 6) is parallel to the line passing through the points (−12, 9) and (a + 2

iren2701 [21]

$\frac{6 - 1}{ - 2 - a} = \frac{9 - 1}{ - 12 - a - 2} \\ \frac{5}{ - 2 - a} = \frac{8}{ - 14 - a} \\ 16 + 8a = 70 + 5a \\ 3a = 54 > > a = 18$

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4 years ago

PLEASE HELP!!! I NEED THE ANSWER SOON :)

densk [106]

$y=2x \newline y= x^{2} -3$

Substitue 2x for y in the second equation:

$2x= x^{2} -3$

Rearrange to $a x^{2} +bx+c=0$ form:

$x^{2} -2x-3=0$

Factor:

$(x-3)(x+1)=0$

Zeros are $x=3$ and $x=-1$

To find y-coordinates of pts of intersection, plug these x-values into first equation to get $y=-2$ and $y=6$

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4 years ago

Question 3

Alex17521 [72]

Answer:I think it is true

Step-by-step explanation: If you oversteer then it should loose the traction. But I am not sure hope this helps

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3 years ago