Identify the relation that is also a function.

A.
{(5, 6), (4, 5), (5, 8), (4, 0)}

B.
{(3, −1), (3, 1), (3, 0), (0, 2)}

C.
{(−2, 1), (−1, 2), (1, 4), (−3, −2)}

D.
{(6, 4), (6, −4), (10, 5), (10, −5)}

Given:

Diagram of a circle and its two secant from an exterior point.

To find:

The value of x.

Solution:

We know that, If two secant are on a circle from an exterior point, then the products of measure of secants and measure of external segments of secants are equal.

Using the above property, we get

[tex](x+7)x=(2+2)2[/tex]

[tex]x^2+7x=(4)2[/tex]

[tex]x^2+7x=8[/tex]

[tex]x^2+7x-8=0[/tex]

Splitting the middle term, we get

[tex]x^2+8x-x-8=0[/tex]

[tex]x(x+8)-1(x+8)=0[/tex]

[tex](x+8)(x-1)=0[/tex]

Using zero product property, we get

[tex](x+8)=0[/tex] and [tex](x-1)=0[/tex]

[tex]x=-8[/tex] and [tex]x=1[/tex]

Side cannot be negative.

Therefore, the only possible value of x is 1.

its B. . ..... .............

Answer:

93

Step-by-step explanation:

The experimental probabilities of each outcome are given as follows:

The theoretical probability of each outcome is given as follows:

1/5.

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes.

For the experimental probability, we consider the 30 trials in the table.

For the theoretical probability, we consider that each of the outcomes is equally as likely, hence the probability is given as follows:

p = 1/5.

More can be learned about probability at https://brainly.com/question/24756209

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Answer:

A

Step-by-step explanation:

becuz it's of the form y = kx

Answer:

A.

Step-by-step explanation:

y = 1.6x is direct variation

Answer:

The number of times the  variability in the heights of the seventh graders is the variability in the heights of the sixth graders is:

                         3.0

In order to find the variability between the two sets we divide the mean absolute deviation of the first set of data by the mean absolute deviation of the second set of the data.

The MAD of first set of data is: 1.2

and MAD of second set of data is: 0.4

Hence, let n be the number of times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders.

Step-by-step explanation: i Just said it 3.0 Hope this help ..lolz <3

Answer:

1.368 × 10^4

Step-by-step explanation:

i blink 38 times a muinet so i blink 2280 an hour so i blink 13680 every 16 hours

Answer: B

Step-by-step explanation:

Answer:

Average decrease in value per year: $70

Step-by-step explanation:

600 ---> 250

600 - 250 = 350

350 / 5 = 70

the answer is 228 I was wrong when I said

I think the choices is wrong

Answer:

B. 228 meters square

Step-by-step explanation:

6 x 4 = 24

24 x 4 = 96

6 x 6 = 36

(8 x 6) / 2 = 24

24 x 4 = 96

96 + 96 + 36 = 228 square meters

Answer:

53.12ft

Step-by-step explanation:

Area of triangle:

The formula to find the area of a triangle is 1/2bh

- We plug in the values given.

1/2 x 8 x 7

Which is 28ft.

Area of semicircle:

The formula to find the area of a semicircle is 1/2[tex]\pi[/tex][tex]r^{2}[/tex]

- We plug in the values given

1/2 x [tex]\pi[/tex] x [tex]4^{2}[/tex]

1/2 x 16[tex]\pi[/tex]

8[tex]\pi[/tex] or 8 x 3.14 = 25.12

                    In order to get the total area of the whole shape we need to add the areas of those two, which will be 25.12 + 28 = 53.12

Answer:

3x−3

Step-by-step explanation:

2x+x−3

=2x+x+−3

Combine Like Terms:

=2x+x+−3

=(2x+x)+(−3)

=3x+−3

Answer:

She will have to earn $3,100

Step-by-step explanation:

6,600-3,500=3,100

Answer:

A and B

Step-by-step explanation:

1 yard= 3 feet

56/12=4.66667

A is 3 feet

and B is 4.666667 feet

Answer:

60.16

Step-by-step explanation:

Don't really know how to explain this other than use a calculator.

Hope that this helps!

Answer:

1 10/18

Step-by-step explanation:

Answer:

0.4 = 0.4

0.9 = 1.0

1.1 = 1.1

2.8 = 3.0

Step-by-step explanation:

i'm so sorry if this is wrong i just wanted to try and help

The mean absolute deviation of this data set is 1.25 which is nearest to the 1.1 option third is correct.

It is defined as the measure to show the variation in data set in other words between the mean and every data value, the distance known as the MAD.

We have data as shown in the picture in the form of frequency graph.

The mean = 11/4 = 2.75

The difference between each value and mean is shown in the attached table.

MAD = 5/4 = 1.25

The nearest value is 1.1.

Thus, the mean absolute deviation of this data set is 1.25 which is nearest to the 1.1 option third is correct.

Learn more about the mean absolute deviation here:

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Answer:

F) = 79.27cm

G) = 50.8cm

Step-by-step explanation:

For F, add the area of the rectangle (8*5 = 40) to the area of the half circle ((pi * 5^2)/2 = 39.27) to get the total (79.27)

For G, add the area of the square (5.5*5.5 = 30.25) to the area of the trapezoid (3 * (8.2+5.5)/2 = 20.55) to get the total (50.8)

Hopefully this helps - let me know if you have any questions!

Answer: 6 full buckets.

Step-by-step explanation:

138(pool)/7.5(a bucket)=18.4

18-12=6 full buckets.

Answer:

5625 feet

I hope it's helps you

Answer:

5625 feets

Step-by-step explanation:

Rate(feet/seconds) = height(feets)/time(seconds)

175 = x/25

x = 4375

After the skydiver opens his parachute the height reduces

Initial height – reduced height

10000 – 4375

= 5625 feets

Answer:

Explained Below

Step-by-step explanation:

You'll want to start off by knowing the formulas for the area and perimeter of triangles:

Area Formula - A= 1/2 bh (1/2 x base x height)

Perimeter Formula - P = a + b + c (sides added together)

So, we will plug in the numbers.

Triangle 1: A = 1/2 bh So, A = 1/2 8 x 10, which means half of 8 or 10 multiplied by the number that you did not half. (For instance: If you half 8, that means you multiply 4 and 10.) Now, you should have A = 40 either way (4 x 10 = 40 and 8 x 5 = 40).

P = a + b + c. So, you will add 8, 6, and 10. This is 14.

Triangle 2: A = 1/2 bh. But, this triangle requires you to cut in half. Doing this, that cuts your base as well. It will no longer be 30, by 15. For the left side of triangle 2, it will be A = 1/2 15 x 12, which you half either 15 or 12, where 12 is easier. Now it should be A = 15 x 6, which is 90. The right side of the triangle will be A = 1/2 15 (12) as well, which is also 90. In the end, you will add it together, which is 180.

P = a + b + c. So, you will add 15, 23, and 12 first. Then, add 15, 20, and 12. You should have 50 and 47, which you will add that together as well.

Triangle 3: I will keep working on this one, as I am a little unsure :/

Triangle 4: You will do the same steps for this triangle like you did on #2. Though the numbers you plug on are different. A = 1/2 bh - A = 1/2 10 x 14. (This is for the left side) You will have to half either the base or the height's number. So, it will be A= 5 x 14 or A=10 x 7. Then, you will multiply and find your answer (70). (This is for the right side) A = 1/2 10 x 14. Due to the numbers being the same, it can be shown that the area will also be 70. You then add 70 and 70 together.

P = a + b + c. You will add 10, 14, and 15 for the left side and 10, 14, and 17 for the right side. Once you add them separately, add the answers together (10+14+15 =39 and 10+14+17 = 41. 39 + 41 = 80.

Triangle 5: A=1/2 bh. A = 1/2 12 x 16. You will half either 12 or 16 (It does not matter). Then you should have A = 6 x 16 or A = 12 x 8. Either way, your answer is 96.

P = a + b + c. You will add 12, 16, and 18. This results in 46.

Hope this helps! I will continue to figure out Triangle 3

Answer:

15

Step-by-step explanation:

2+3+8+2

2+3=  8+2=

 5  +  10=

     15

Answer: 15

Step-by-step explanation:

Added all 4 #s.

Answer: A. 6.12 cm; scalene

I think

Step-by-step explanation:

that's the answer i got.

Answer:

a= times two

b= times 1.25

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