MATHEMATICS HIGH SCHOOL

Pwease help fast this is mah last question!The area of the trapezium ABCD as shown in the figure (in square units) is
A) 222
B) 111
C) 224
D) 116​
pwease help fast this is mah last question! The area - 1

Answers

Answer 1
Answer:

Answer:

A  = 222 units^2

Step-by-step explanation:

To find the area of this trapezoid, first draw an imaginary horizontal line parallel to AD and connecting C with AB  (Call this point E).  Below this line we have the triangle CEB with hypotenuse 13 units and vertical side (21 - 16) units, or 5 units.  Then the width of the entire figure shown can be obtainied using the Pythagorean Theorem:

(5 units)^2 + CE^2 = (13 units)^2, or 25 + CE^2 = 169. Solving this for CE, we get |CE| = 12.

The area of this trapezoid is

A = (average vertical length)(width), which here is:

       (21 + 16) units

A  = --------------------- * (12 units),   which simplifies to:

                  2

A = (37/2 units)(12 units)  =  A  = 37*6 units  =  A  = 222 units^2

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Doctors use the term maximum heart rate (MHR) when referring to the quantity found by starting with 220 beats per minute and subtracting 1 beat per minute for each year of a
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A. 197
B. 169
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D. 134
E. 80

Answers

THR = RHR + 0.65(MHR - RHR)
For a 43 year old person, MHR = 220 - 43 = 177

THR = 54 + 0.65(177 - 54) = 54 + 0.65(123) = 54 + 79.95 = 133.95 ≈ 134.

Kylie measured a swimming pool and made a scale drawing. She used the scale 1 inch = 1 foot. What is the scale factor of the drawing?Simplify your answer and write it as a fraction.

Answers

Answer:

40 meter

Step-by-step explanation:

What is the mean of the data set?12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18

A.14.00

B.14.75

C.13.50

D.15.75

Answers

The answer is given by the second choice: letter B. 14.75 is the answer because to get the mean, you should add all the numbers and then divide it by how many numbers there are. For example, in this case, you add 12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18 to each other. You will get the answer 172. After that, you should divide 172 by 12 because there are 12 numbers in the data set. 
the answer is B because if you add all the numbers up and divide then by the amount of numbers there are then you will end up with the mean

A DJ for a school dance has a CD with 6 slow songs and 5 fast songs on it. As he plays each song he removes it from the play list. What is the probability that the first two songs he plays are slow?

Answers

17% i hope homie haven't been in school for a hot minute but good enough eh?

In a game of poker a hand of five cards is dealt to each player from a deck of 52 cards. find the probablility of a hand containing a spade flush.

Answers

Answer:

0.00597

Step-by-step explanation:

Given,

Total number of cards = 52,

In which flush cards = 20,

Also, the number of spade flush cards = 5,

Since,

\text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}

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Identify the number as rational or irrational. Explain
-√127

Answers

Solve:-

-√127 = ?
-√127 = -11.2694276695846449

The answer to this is irrational because this number goes on and on forever and it can not be expressed as a ratio, so your answer is irrational.

Hope I helped ya!! xD
Its irrational because the square root of 127 is a decimal that goes on and on and cannot be represented as a fraction. So it is irrational. 
Hope this helps.
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