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Ivan
3 years ago
10

Given: ABCD trapezoid BC=1.2m, AD=1.8m AB=1.5m, CD=1.2m AB ∩ CD =K Find: BK and CK

Mathematics
1 answer:
tekilochka [14]3 years ago
8 0

Answer:

BK=3

CK=2.4

Step-by-step explanation:

Hope it works

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1000 students participated in a survey on a university campus about their TV watching habits. All
nasty-shy [4]

Hi, you've asked an unclear question. However, I inferred you may want to know the actual number of students represented by the percentages of 27%, and 61%.

<u>Explanation:</u>

Finding percentage usually involves performing two operations; multiplication and division.

First, all (100%) of respondents said they watched TV at least at some point during the day.

Next, 27% of respondents stated that they only  watched television during prime time hours, in which the actual number of students represented by the percentage is calculated by dividing 27 by 100 and multiplying by 1000 =

\frac{27}{100} * 1000 = 270.

Finally, we are told 61% of respondents stated that they spend prime time  hours in their dorm rooms. The actual number of students represented by the percentage is calculated by dividing 61 by 100 and multiplying by 1000 =

\frac{61}{100} * 1000 = 610

5 0
3 years ago
Find 15/4 + (-4 1/3). Write your answer as a fraction in simplest form.
Montano1993 [528]

Answer:

-17/12

Step-by-step explanation:

15/4 = 3 3/4

3 3/4 -4 1/3 =  3 9/12  -4 4/12  =  -17/12

3 0
3 years ago
Trình bày ứng dụng của vi phân toàn phần trong việc tính xấp xỉ giá trị của một hàm số hai biến. Cho ví dụ.
Anastaziya [24]
Can you translate this to English
6 0
3 years ago
Which of the equations below could be the equation of this parabola?
Mademuasel [1]

Answer:

Option B: y = -\frac{1}{2} x^2

Step-by-step explanation:

The parabola has its concavity downwards, so we need a function in the model:

y = ax^2 + bx + c

With a negative value of 'a'

The vertex is (0,0), so we have that:

0 = 0a + 0b + c

c = 0

The x-coordinate of the vertex is given by the equation:

x\_vertex = -b/2a

-b/2a = 0

b = 0

So we have a function in the model:

y = ax^2

With a < 0

The only option with this format is B:

y = -\frac{1}{2} x^2

7 0
3 years ago
Question 3
Len [333]

Answer:

in geometry nation, is circle, isosceles triangle and parabola.

Step-by-step explanation:

just did it.

7 0
3 years ago
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