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3 years ago

The length of a rectangle is 6cm longer than its width. If the perimeter of the rectangle is,76cm find its length and width.

1 answer:

3 0

Say the width is x, the length would be x+6
2x+2(x-6)=76
2x+2x-12=76
4x=88
x=22
So the width is 22 and the perimeter is 28

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A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no pr

hjlf

Answer:

a) $s= 9.74$

D. 9.74

b) $Median= 74$

B. 74

Step-by-step explanation:

Part a

We have the following dataset given:

69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83

We can begin calculating the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = 75.04$

Now we can calculate the sample deviation with the following formula:

$s =\sqrt{\frac{\sum_{i=1}^n (X_i-\bar X)^2}{n-1}}$

And after replace we got:

$s= 9.74$

Part b

For this case we need to sort the value on increasing way:

[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93

And the median would be the value in the position 13 and we got:

$Median= 74$

6 0

3 years ago

Please help me with this please 20 points

melisa1 [442]

Answer:

If you wan to go on the two rides with the shortest wait times (Dr. Zoom & Dueling Dragons), it should take 15 1/6 minutes.

Step-by-step explanation:

9 1/3 --> 9 2/6

9 2/6+5 5/6=15 1/6

4 0

4 years ago

Read 2 more answers

After establishing x how would I find DKH

Nookie1986 [14]

The sum of the 2 angles will add up to 180°

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=f%20-%20354%20%3D%201221" id="TexFormula1" title="f - 354 = 1221" alt="f - 354 = 1221" align="

alukav5142 [94]

$f-354=1221$ <em>add 354 to both sides</em>

$f+354-354=1221+354\\\\\boxed{f=1,575}\to\boxed{D.}$

6 0

4 years ago

Line k has a slope of 2/3. If line m is parallel to line k, then it has a slope of

puteri [66]

Answer:

Line M would also have a slope of 2/3.

Step-by-step explanation:

When two line are parallel that means that they will never intersect.

In order for two lines to avoid intersection they would have to be at the same slope.

Since lines K and line M are parallel to each other they have to have the same slope.

6 0

4 years ago