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3 years ago

Which statements must be true about the reflection of ΔXYZ across ?

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

7 0

m<X'Y'Z' = 90 degrees

m<MCY = 90 degrees

BZ' ~= BZ

ZZ' || YY'

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Brinn's rectangular kitchen has an area of 81 square feet. the kitchen is 9 times as many square feet as Brinn's pantry. If the

elixir [45]

3 feet, you divide 81 by 9 and you get the square feet of the pantry, then you divide that by 3

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3 years ago

Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the quadrilateral. Show your work.

Xelga [282]

The opposite angles of a quadrilateral are supplementary so you can set them equal to 180.

If there was more information given then i could find the exact values.

Hope this helps :)

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4 years ago

Hi can someone help with this question? Thanks!!!

aleksandrvk [35]

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3 years ago

The number of vehicles passing through a bank drive-up line during each 15-minute period was recorded. The results are shown bel

nexus9112 [7]

Answer:

The correct answer is: Option D: 26 vehicles

Step-by-step explanation:

Median is the middle value of a sorted data set.

The formula for median depends on the number of values in the dataset.

First of all we have to arrange the given data in order

So,

14 19 23 24 24 24 24 26 26 26 26 26 27 27 28 29 30 30 30 34

Counting the values in the dataset

n = 20

As the number of values is even, the formula for median will be

$M = \frac{1}{2}(\frac{n}{2}th\ value+(\frac{n}{2}+1)th\ value)$

Putting the values

$M = \frac{1}{2}(\frac{20}{2}th\ value+(\frac{20}{2}+1)th\ value)\\M=\frac{1}{2}(10th\ value +[10+1]th\ value]\\M= \frac{1}{2}(10th\ value + 11th\ value)$

The 10th value in dataset is 26 and 11th is also 26 so

$M = \frac{1}{2}(26+26)\\M = \frac{1}{2}(52)\\M = 26$

Hence,

The correct answer is: Option D: 26 vehicles

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3 years ago

.) Find the sum of the first n terms of the geometric sequence for the values of a1and r.

Vinvika [58]

Sn = a(r^n - 1)/(r - 1)
S4 = 228(4.8^4 - 1)/(4.8 - 1) = 228(530.8416 - 1)/3.8 = 228(529.8416)/3.8 = 120,803.8848 / 3.8 = 31,790.496

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3 years ago