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Mnenie [13.5K]
3 years ago
9

A rectangle's perimeter and area have the same value. The width of the rectangle is 6 units. What is the length of the rectangle

in units?
Mathematics
1 answer:
Sliva [168]3 years ago
8 0

Answer:

The length ot rectangle is 3 units.

Step-by-step explanation:

The formula for perimeter is P = 2l + 2w and the area is A = l×w. Assuming that the perimeter and area have the same values so you have to compare it :

perimeter = 2l + 2w

area= l \times w

perimeter = area

2l + 2w = lw

let \: w = 6

2l + 2(6) = 6l

2l + 12 = 6l

12 = 6l - 2l

4l = 12

l  = 3 \: units

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D: because when calculating compound events we multiply the two probabilities,
so 1/2 x 1/4 = 1/8

4 0
3 years ago
The hiking trail 2600 miles long and passes through fourteen states. Because it is their first time hiking the trail, Janet and
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They will hike 16% of the trail in Georgia.

Step-by-step explanation:

We have that:

The hiking trail is of 2600 miles.

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Georgia distance multiplied by 100% and divided by the total distance. So

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6 0
2 years ago
Becky invests £5000 for 2 years in a bank account.
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Answer:

£300

Step-by-step explanation:

We apply the formula for Simple Interest:

I = \frac{P * R * T}{100}

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6 0
2 years ago
The expression s2 is the area of a square, where s is the side length of the square. What does the expression (6x)2 represent?
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5 0
3 years ago
Read 2 more answers
Select the correct answer from each drop-down menu.
Ket [755]

Answer:

Correlation coefficient ≈ 0.9445

This indicates that the weight of a student increases as the height of the student increases.

Step-by-step explanation:

The rest of the question is the following table

value of x (<u>height</u>) are        58, 59,   60,  62,  63,  64,   66,  68,  70

Value of y (<u>weight</u>) are:      122, 128, 126, 133, 145, 136, 144, 150, 151

=======================================================

To calculate the correlation coefficient we will use the following form:

r = \frac{n(\sum xy)- (\sum x)(\sum y)}{\sqrt{n\sum x^2 - (\sum x)^2} \sqrt{n\sum y^2-(\sum y)^2} }

So, n (the number of terms) = 9

∑x = 570, ∑y= 1236, ∑ x²= 36234, ∑ y²= 170694 and ∑xy=78617

So, the correlation coefficient =

r = \frac{9\times 78617- 570\times 1236}{\sqrt{9\times 36234-(570)^2}\sqrt{9\times 170694-(1236)^2}}\\

∴ r =  0.9445

So, weight of a student increases as the height of the student increases.

5 0
3 years ago
Read 2 more answers
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