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Georgia [21]
3 years ago
12

What is the length of CF?

Mathematics
2 answers:
insens350 [35]3 years ago
6 0

Answer:

8.5

Step-by-step explanation:

BF * EF = CF * DF

7 * 17 = CF * 14

119 = CF * 14

CF = 119 / 14

CF = 8.5

kogti [31]3 years ago
4 0
I think answer is 8.5
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Given 2x - 3 = 7, what is the value of x?
goblinko [34]

Answer:

2x-3=7 /×3

2x=3+7

2x=10 /÷2

x=5

5 0
2 years ago
Read 2 more answers
32. Parallelogram ABCD has vertices A(0,0), B(2,4), and C(10,4). Find the coordinates of D.
goblinko [34]

Answer:

The fourth vertex is D(8, 0)

Step-by-step explanation:

Let A(0, 0), B(2, 4), and C(10, 4) be the three vertices of a parallelogram ABCD and let its fourth vertex be D(a, b).

Join AC and BD. Let AC and BD intersect at point O.

  • We have known that the diagonals of a parallelogram bisect each other.  

So, O would be the midpoint of AC as well as that of BD.

A\left(0,\:0\right)=\left(x_1,\:x_2\:\right)

C\left(10,\:4\right)=\left(x_2,\:x_2\:\right)

The midpoint of AC is:

\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)

\left(x_1,\:y_1\right)=\left(0,\:0\right),\:\left(x_2,\:y_2\right)=\left(10,\:4\right)

=\left(\frac{10+0}{2},\:\frac{4+0}{2}\right)

=\left(5,\:2\right)

The midpoint of BD is:

=\left(\frac{a+2}{2},\:\frac{b+4}{2}\right)

so

∵  \frac{a+2}{2}=5

a+2=10

a=8

∵ \frac{b+4}{2}=2

b+4=4

b=0

Hence, the fourth vertex is D(8, 0)

4 0
3 years ago
Use the table to the right to answer the following question.
zepelin [54]

The energy is compared based on the information given below.

<h3>How to illustrate the energy?</h3>

Energy released by burning 1 kilogram of element A = EA = 5.1 * (10)8

Energy released by fission of hydrogen in 1 kilogram of element B = EB = 1.3 * (10)10

Therefore,

Ratio = EB / EA = 1.3 * (10)10 / 5.1 * (10)8 = 25

Thus, the fission of 1 kg of element B releases 25 times as much energy as burning 1 kilogram of element A.

Learn more about energy on:

brainly.com/question/13881533

#SPJ1

<u>The other part of the question:</u>

Energy released by burning 1 kilogram of element A = 5.1 times 10 Superscript 8

Energy released by the fission of hydrogen in 1 kilogram of element B = 1.3 times 10 Superscript 10

4 0
2 years ago
SC_2, 4) and T (3,9).<br> The midpoint is MC). The distance between S and T is about
schepotkina [342]

Answer:

Midpoint is (0.5,6.5)

the distance is 7.1

Step-by-step explanation:

hope this helps u have a nice day :)

4 0
3 years ago
The prime
Serjik [45]

9514 1404 393

Answer:

  n = 3

Step-by-step explanation:

In order for 3 × 3 = 9 to be a factor of both numbers, we must have ...

  n = 3

8 0
3 years ago
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