D and AC are chords that intersect at point Y. A circle is shown. Chords B C and A C intersect at point Y. The length of B Y is 3, the length of Y D is 8, the length of A Y is x, and the length of Y C is 6. What is the length of line segment AY? 2 units 3 units 4 units 6 units

Answer:

the answer is D!

Step-by-step explanation:

I took that quiz :)

Answer:

1.2

Step-by-step explanation:

Since (3 + 6 + 4 + x + 7)/5 = 5, then 3 + 6 + 4 + x + 7 equals 25. Adding, we have 20 + x = 25. Thus x = 5. Now we calculate how far each number is from the mean. 3 is 2 away. 6 is 1 away. 4 is also 1 away. 5 is 0 away, and 7 is 2 away. Now, we have to find the mean of this. (2 + 1 + 1 + 0 + 2 ) / 5 is equal to 6/5, which is 1.2

Answer:

Triangle DEF is congruent to triangle GHI.

Step-by-step explanation:

There are theorems of congruency. They are SSS, SAS, ASA, and AAS. You can look these up if you are willing to master identifying similarity and congruency in triangles. It is an ideal concept. You can tell based off of marks of eqaulity which triangles are truly congruent. Just remember these theorems dela with angles and sides being eqaul.

(Khan academy is sure to help you master this. They have practice aswell)

Answer:

Option B is correct.....

Answer:

it 10 did the exam review

Step-by-step explanation:

Answer:

i am 100% sure the answer is 10

Step-by-step explanation:

Answer:

1/6

Step-by-step explanation:

For coin its 1/2 for spinner its 1/3

1/2 times 1/3

Hope this helps

Answer: 1/6

Step-by-step explanation:

Answer:

Option B

A factor is x-1

Step-by-step explanation:

To find the factors of the polynomial, we will have to look for the roots of the polynomial.

Whenever a polynomial is plotted on a graph, it is important to note that the root of the polynomial refers to the points where the line cuts the x-axis.

From our curve given in the question, the roots of the polynomial are:

x = 1 and x = 6

Let us consider the first root

x = 1

from this, we can get x-1 =0

We will have to take only this as our answer because we are looking for only one of the factors.

Hence, a factor is x-1 and also our correct answer.

Answer:

For the return, i guess that you say in the interval between 15:40 and 15:45, that is the moment where he goes back to his home, and pass through the local shop.

Ok, in the graph we can see pairs (time, position)

The average speed can be obtained with two of these pairs, and the average speed is:

As = (position2 - position1)/(time2 - time1)

In this particular case, we have the pairs:

(15:40, 900m) and (15:45, 400m)

(i guess that the distance is in meters)

Then the average speed is:

As = (900m - 400m)/(15:45 - 15:40)

and 15:45 - 15:40 = 0.5 minutes.

As= 500m/5 min = 100 m/min

This means that the average speed in this return is 100 meters per minute

Answer:

The system of equations is consistent and independent

Step-by-step explanation:

Given system of equations :

[tex]y=x+4\\y= -x-4[/tex]

Consistent : For a two variable system of equations to be consistent the lines formed by the equations have to meet at some point or they have to be parallel.

Inconsistent :If the system of equations is not consistent then it is inconsistent.

Dependent:A dependent system of equations has infinite solutions

Independent :An independent system has a single solution.

Plot the lines on graph

y=x+4 --- Blue line

y=-x+4 ---- Green line

Refer the attached graph

The lines formed by the equations intersect at one point

So the lines are consistent

Now the given system of equations has single solution . So, it is independent

So, Option C is true

Hence The system of equations is consistent and independent

Answer:

equilateral acute

Step-by-step explanation:

Answer:

Equilateral Acute Triangle

Step-by-step explanation:

Answer:

The bacterial culture loses  [tex]\dfrac{5}{8}[/tex]  of its size every 7 seconds.

Step-by-step explanation:

The relationship between the elapsed time t, in seconds, and the number of bacteria, N(t), in the petri dish is modeled by the function:

[tex]N(t)=4900\cdot\left(\dfrac38\right)^{t/7}[/tex]

Since the growth factor is less than 1, it is a decay equation.

[tex]\dfrac38=1-\dfrac58\\N(t)=4900\cdot\left(1-\dfrac58\right)^{t/7}[/tex]

Observe that the time t is divided by 7.

This is the period.

We can therefore say that the bacterial culture loses [tex]\dfrac{5}{8}[/tex]  of its size every 7 seconds.

Answer:

7

Step-by-step explanation:

khan

Answer:

40/7

Step-by-step explanation:

If the student read 4/7 of a book 10 times, that means that your equation would be

4/7 • 10 = 40/7

If you want to simplify that even further, you could get about 5.17, but 40/7 is the most simplified, correct answer.

Answer:

0.35 per light bulb

Step-by-step explanation:

In order to find the unit price per bulb, we must set up a unit rate.

To do this, divide the cost for the pack by the number of light bulbs in the pack.

cost/bulbs

We know that a 7 pack of bulbs costs $2.45.

cost= $2.45

bulbs= 7 bulbs

$2.45/7 bulbs

Divide 2.45 by 7 (2.45/7=0.35)

$0.35 /bulb

The unit price per bulb is 0.35.

Answer:

x=3, y=2

Step-by-step explanation:

since y =2x-4, we name it as equation I

and the second system as equation 2.

we substitute equation 1 into 2 and we have;

4x+3(2x-4)=18

4x+6x-12=18

10x=18+12

x= 30÷10

x=3.

now, substituting x=3 into the y equation , we have

y= 2(3)-4

y=2.

therefore, x=3, y=2.

...if I was to plot this I would use the equation intercepts. Some people might use the slope whichever is okay for you. but I like to use the intercepts...(x,y)

so first, to find the intercept of equation 1;

we have,

y=2x-4

we set x= 0 and we get .y=2(0)-4=-4, we have (0,-4)...x=0, y=-4 for intercept

we set y to 0 to get the intercept for x...

we have, 0=2x-4=2..we get (2,0)...x=2, y=0 for the second intercept.

we do same for the second equation...

4x+3y=18...

so when doing this set x to 0 to get y intercept that is (0,y) and set y= 0 to get the x intercept that is (x,0)... then you can plot the points on your graph...

the intercept of the two system after you've plotted it on your graph should give you the solution we have that is x=3, y=2.

Answer:

The midpoint is (0,2)

Step-by-step explanation:

To find the x coordinate, average the x coordinates of the endpoints

(-4+4)/2 = 0/2 =0

To find the y coordinate, average the y coordinates of the endpoints

(6+-2)/2 = 4/2 =2

The midpoint is (0,2)

Answer:

-3≤x<2

Step-by-step explanation:

Answer:

The graph that best fits this model of profit and price per unit is attached to this solution.

Step-by-step explanation:

A couple of graphs are missing from the question. According to the full question as obtained online, there are a number of graph options, and we are expected to pick the best option. I would not add all the other graphs to limit the chances of deletion due to violating community guidelines.

The function is to model the profits of a new pet-monitoring system, so, if the profits are y and x is the price per unit, y = f(x)

The profits vary as the price per unit varies, there is no profit made until the price reaches

$95 per unit, a maximum profit at a price of $140 per unit, and no profit at a price over $185 per unit.

This description of the curve shows that y is negative at values of x less than $95, then the profits increase when x varies between $95 and $140. The profits reach a maximum at $140 and then the profits start to decline as x increases again, the profits go to 0 at x = $185.

This description shows that the function is a quadratic function with a graph that is n-shaped, peaking at x=185 and the graph crosses the x-axis at x=95 and x=185.

The most fitting graph for this model is attached to this solution provided.

From the graph, all the descriptions above are evident.

Hope this Helps!!!

Answer:

Graph A!

Step-by-step explanation:

just passed on edge 2020

Answer:

11, 13, 17, 31, 37, 71, 73, 79, 97 are the two digit numbers which remain prime even on interchanging the digits.

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

(4 y + 8 x + 6) + 25 + (4 x + 6 y + 7).

Combine like terms

4y+6y  + 8x+4x  + 6+25+7

10y+12x+38

Answer:

10

Step-by-step explanation:

original expression:

4y +8x +6) +25+(4x+6y+7)

Let's simplify it step-by-step:

4y+8x+6+25+4x+6y+7x (removing the parentheses)

4y+12x +6+25+6y+7 (adding together similar terms in x)

10y+12x+6+25+7 (adding together similar terms in y)

10y+12x+38 (adding together similar terms with no variable)

So, from the final expression, we see that the coefficient for y is 10.

Answer:

[tex]8^{-5}[/tex]

Step-by-step explanation:

Anything raised to the power of 0 is 1. This means that we need to multiply 8^5 by something to make it into 8^0. When you multiply together two numbers with the same base, you can add the exponents together. For instance, in this case:

[tex]8^{-5}\cdot 8^5= \\\\8^{-5+5}= \\\\8^0=1[/tex]

Hope this helps!

Answer:

9.6

Step-by-step explanation:

[tex]d = \sqrt{ {8}^{2} + {2}^{2} + {5}^{2} } \\ = \sqrt{64 + 4 + 25} \\ = \sqrt{93} \\ = 9.64365076 \\ = 9.6[/tex]

Linear increasing

Additional Information:

Linear functions are those whose graph is a straight line.A linear function has the following form:

y=mx+b

m=slope

b=y- intercept

A linear function has one independent variable and dependent variable.The independent variable is X and dependent variable is y.

Initial values are called y-intercept.

Answer:

a = 6

b = 3

c = 64

d= 64

Step-by-step explanation:

1. Apply the quotient of powers:

[tex](-2)^a / 4^b[/tex]

In the given expression:

[tex]4^5(-2)^9/4^8(-2)^3[/tex]

base same then the powers are subtracting if the bases are in numerator and denominator

i.e [tex]a^m/a^n = a^{m-n}[/tex]

Solving:

[tex]=(-2)^{9-3}/4^{-5+8}\\=(-2)^6/4^3[/tex]

therefore, the values of a and b are: a = 6

b = 3

2. Evaluate Powers

c/d

We have

[tex](-2)^6/4^3[/tex]

When power is even negative sign changes into plus sign

64/64

Therefore, we get the values of c and d

c = 64

d= 64

Answer:

a = 6

b = 3

c = 64

d= 64

Step-by-step explanation: i got it right

Answer:

B

Step-by-step explanation:

I'm not %100 sure but I'm not guessing either

Answer:d

Step-by-step explanation:

On ed

Answer:

C. 2(3x + 2y) and 6x + 4y

Step-by-step explanation:

Hope I helped!!

Answer: H 56

Step-by-step explanation:

The girl is standing 5 places in front if the 37th place ie.,32nd place.

There are 31 people standing in front of the girl. She she 24th from the end, there are 23 people behind her.

So total people are 32 + 23 + 1 = 56

Answer:

x=1=-8

Step-by-step explanation:

[tex] \LARGE{ \underline{\underline{ \pink{ \bf{Required \: answer:}}}}}[/tex]

[tex] {2}^{3} x - 1[/tex]

put the value of x as 1

2³ x 1 - 1

8 -1

7

Answer:

  (a)  5n -300 = 1500

Step-by-step explanation:

Profit is the difference between revenue and cost.

The revenue the fundraiser will generate apparently comes only from ticket sales. At $5 each, the sale of n tickets will result in revenue of 5n dollars.

The cost the team must pay will be the sum of the cost of the DJ and the cost of the decorations. The team's total cost will be ...

  200 +100 = 300

The profit is the difference between revenue and cost. The team wants that difference to be $1500, so an appropriate equation for the number of tickets to sell is ...

  revenue - cost = profit

  5n -300 = 1500

Answer:

5n - 300 = 1,500

Step-by-step explanation:

just got it right on edge

Answer:

y = -9

Step-by-step explanation:

Step 1: Substitute x

2(2) - 2y = 22

Step 2: Isolate y

-2y = 18

Step 3: Divide by -2

y = -9

And you have your final answer!

Answer:

The answer is point C

Step-by-step explanation:

Point C is the opposite of point P

Answer: C

Step-by-step explanation: