*25 points* Hailey ran a few laps. D(n), models the duration (in seconds) of the time it took for Hailey to run her n^th lap. When did the lap duration increase faster?

A. Between the 3rd and 7th lap

B. Between the 7th and 9th lap

C. The lap duration increased at the same rate over both intervals

Answer:

x = 7

LP = 6

Step-by-step explanation:

JK = 12

LK = 12

NS = 8

PS = 2x - 6

radius bisects the chords JK and LK  because it is perpendicular to them.

JK = JN + NK = 6 + 6 = 12

LK = LP + PK = 6 + 6 = 12

LP = 6

radius= root(6^2 + 8^2) = 10  then  PS = 8 = 2x -6,

8 = 2x - 6

14 = 2x

x = 7

Answer:

17000

Step-by-step explanation:

85 x 200 = 17000

Answer:17000

Step-by-step explanation:200×85=17000

Length×Width

Answer:

Step-by-step explanation:

Angle d is 62 degrees

Angle is 27 degrees

Angle h is 118 degrees

Answer:

8

Step-by-step explanation:

it's 8 because the sides facing each other equal

Answer:

x = 6

Step-by-step explanation:

In triangle ABC, BD is the bisector of angle ABD.

Therefore by angle bisector property:

[tex] \frac{x}{8} = \frac{3}{4} \\ x = \frac{8 \times 3}{4} \\ x = 2 \times 3 \\ \huge \red{ \boxed{ x = 6}}[/tex]

Answer:

2

Step-by-step explanation:

Because 8x4 is 32 and 32x2 is 64 so it’s 2

Answer:

D or 88 degrees

Step-by-step explanation:

Just took the test

Answer:

A linear relationship has a constant rate of change.

Step-by-step explanation:

Hope this helps!

Answer:

(4 x 6), 24+24, 48

Step-by-step explanation:

It has to equal 48 so you put 4 in the parenthesis.

Answer:

A

Step-by-step explanation:

2.50 x 2 = 5.00

Answer:

A

Step-by-step explanation:

$5.00 divided by 2 which would equal 2.50 (unit rate)

Answer:

About 3

Step-by-step explanation:

Since all real life objects have three dimensions, if you increase the dimensions of an object by a certain factor, the object's volume is greater by the factor cubed.

1500*x^3=45000

x^3=30

x is about 3

Hope this helps!

Answer:

C

Step-by-step explanation:

just did the math ツ

Answer:

679.

Step-by-step explanation:

There is either a 1, 4 or 7 in the number.

From the second guess, 189, 1 cannot be in the number , either 8 or 9 are in right place. Also 4 or 7 are in the number.

9 6 4: 9 may be in the number, also 4 or 6.

No 2,3 or 5.

2 8 6  this tells us there is no 8 ,  and 9 is the last digit.

As there is no 2 there must be a 6 in the number

So the number contains a 9 and a 6.

The third number is either a 4 or a 7, but from the  964 result it cannot be a 4 because 6 is included.

So it either 679 or 769.

But 964 had 6  in the wrong place  so the number is 679.

I think the answer is 679 because you every numbers make sense except for 679.

-Dhruva;)

Answer:

C

Step-by-step explanation:

The i's next to each number indicate that they are imaginary

Answer:

c. Imaginary Number

Step-by-step explanation:

3i+4i = 7i

This is an imaginary number

Answer:

(Approximately)

Step-by-step explanation:

The mean absolute deviation (MAD) is defined as

[tex]MAD=\frac{\Sigma |x_{i}-\mu| }{N}[/tex]

Where [tex]\mu[/tex] is the means and [tex]N[/tex] is the total number of elements.

First, we need to find the mean:

[tex]\mu = \frac{\Sigma x_{i} }{N} =\frac{18+12+15+10+13+20+16+12+18+6}{10}= \frac{140}{10}\\ \mu=14[/tex]

Then, we calculate the difference between each value and the mean, from that difference, we are gonna use the absolute value.

18 - 14 = |4|

12 - 14 = |-2|

15 - 14 = |-1|

10 - 14 = |-4|

13 - 14 = |-1|

20 - 14 = |6|

16 - 14 = |2|

12 - 14 = |-2|

18 - 14 = |4|

6 - 14 = |-8|

Now, we sum all terms and divide them by the total number of elements, which are 14.

[tex]MAD=\frac{4+2+1+4+1+6+2+2+4+8}{14}= \frac{34}{14}\\ MAD \approx 2.4[/tex]

Therefore, the absolute deviation is about 2 points. The right answer is B.

Answer:

I think It's 25.84

Step-by-step explanation:

Answer:

33/100 =.33

Step-by-step explanation:

Answer:

0.33

Step-by-step explanation:

The percentage of the Cincinnati Reds would be 33/100 which would be 33%. 33% as a decimal is 0.33.

Answer:

Ebru has a standard deck of cards. The deck has 52 total cards and contains 4 suits: hearts, clubs, diamonds, and

spades. Each suit contains cards numbered 2 – 10, a jack, a queen, a king, and an ace.

Ebru randomly selects a card. Let A be the event that the card is a 2 and B be the event that it is a spade.

Which of the following statements are true?

Choose all answers that apply:

P(A B ) = P(A), the conditional probability that Ebru selects a 2 given that she has chosen a

spade is equal to the probability that Ebru selects a 2.

PB A) = P(B), the conditional probability that Ebru selects a spade given that she has

chosen a 2 is equal to the probability that Ebru selects a spade.

Step-by-step explanation:

Ebru has a standard deck of cards. The deck has 52 total cards and contains 4 suits: hearts, clubs, diamonds, and

spades. Each suit contains cards numbered 2 – 10, a jack, a queen, a king, and an ace.

Ebru randomly selects a card. Let A be the event that the card is a 2 and B be the event that it is a spade.

Which of the following statements are true?

Choose all answers that apply:

P(A B ) = P(A), the conditional probability that Ebru selects a 2 given that she has chosen a

spade is equal to the probability that Ebru selects a 2.

PB A) = P(B), the conditional probability that Ebru selects a spade given that she has

chosen a 2 is equal to the probability that Ebru selects a spade.

Answers:

In photo below

Explanation:

I got it correct in my test :)

Answer:5

Step-by-step explanation:

Given

There are total of 150 ticket

If the probability to win a raffle is [tex]\frac{1}{30}[/tex]

[tex]Probability =\frac{\text{Favorable outvome }}{\text{Total outcome}}[/tex]

[tex]\frac{1}{30}=\frac{\text{no of tickets bought}}{\text{Total no of tickets}}[/tex]

[tex]\frac{1}{30}=\frac{\text{no of tickets bought}}{150}[/tex]

no of tickets bought[tex]=\frac{150}{30}=5[/tex]

and no of tickets bought=No of friends

Therefore there 5 persons who bought tickets

Answer:

Part 1) The exact value of the arc length is \frac{25}{6}\pi \ in

Part 2) The approximate value of the arc length is 13.1\ in

Step-by-step explanation:

ind the circumference of the circle

The circumference of a circle is equal to

C=2\pi r

we have

r=5\ in

substitute

C=2\pi (5)

C=10\pi\ in

step 2

Find the exact value of the arc length by a central angle of 150 degrees

Remember that the circumference of a circle subtends a central angle of 360 degrees

by proportion

\frac{10\pi}{360} =\frac{x}{150}\\ \\x=10\pi *150/360\\ \\x=\frac{25}{6}\pi \ in

Find the approximate value of the arc length

To find the approximate value, assume

\pi =3.14

substitute

\frac{25}{6}(3.14)=13.1\ in

The best example of a line of best fit will be given in option A.

What is Equation of line?

The equation of line passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;

y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

Some graph are shown in figure.

Now, Find the best fit of the line as;

In option A;

The line is contain almost near to the points of the graph.

So, This is the best example of a line of best fit.

In option B;

The line is not passes through any of the given points.

So, It is not best fit.

In option C;

The line is perpendicular to the graph of the points.

So, It is not best fit.

In option D;

The line is vertically with the points of the graph.

So, It is not best fit.

Thus, The best example of a line of best fit will be given in option A.

Learn more about the equation of line visit:

https://brainly.com/question/9351428

#SPJ2

Answer:

when i simplified it on paper i got this but it has no solution

2(5/6)=27/6=-25=-5/6=1/6

Step-by-step explanation:

Answer:

Step-by-step explanation:

3z+4≤4z-1

3z-4z≤-1-4

-z≤-5

z≥5

sol.

The number is at least 5

Answer:

A) 40 Degrees

Step-by-step explanation:

angle EGD and angle DGC form a right angle, so subtract:

90-50= 40.

Answer:

D.) 30°

Step-by-step explanation:

∡AGB is vertical to ∡EGD, so they are congruent.

(I put this so you can give Kalehead the brainliest  :D)

An exponent that has the form m/n where m and n are integers. So, this describes a rational exponent.

Rational exponents are those exponents numbers that are expressed as a rational number in the form of [tex]a^{m}[/tex] where m is a rational number.

An exponent of a rational number m that is in the form of p/q.

An exponent that has the form m/n where m and n are integers. So, this describes a rational exponent.

Learn more about rational numbers;

https://brainly.com/question/1310146

Answer:

20 gallons

Step-by-step explanation:

105/15=7

7*20=140

We have been an equation in polar coordinates [tex]r=10\text{sin}(\theta)[/tex]. We are asked to write our equation in rectangular coordinates.  

We know that the equation [tex]r=2b\text{sin}(\theta)[/tex] is equation of a circle with a radius [tex]|b|[/tex] and center at [tex](0,b)[/tex].

Let us find the value of b.

[tex]2b\text{sin}(\theta)=10\text{sin}(\theta)[/tex]

[tex]\frac{2b\text{sin}(\theta)}{2\text{sin}(\theta)}=\frac{10\text{sin}(\theta)}{2\text{sin}(\theta)}[/tex]

[tex]b=5[/tex]

We know that equation of a circle in rectangular coordinates is [tex](x-h)^2+(y-k)^2=r^2[/tex]

Since [tex]b=5[/tex], so radius is 5 and center is at point (0,5).

[tex](x-0)^2+(y-5)^2=5^2[/tex]

[tex]x^2+(y-5)^2=25[/tex]

Therefore, our required equation would be [tex]x^2+(y-5)^2=25[/tex].

Answer:

x^2+y^2=10y

Step-by-step explanation:

d on edg

Answer:

D.

Step-by-step explanation:

Firstly, we must look at the absolute value symbol. This means that if d is positive, it must be a number greater than 3. If d is negative, the number must be less than -3 (for the absolute value to be greater than 3.)

This results in A and D being possible solutions. HOWEVER, we must look at the ">" symbol.

Notice how the symbol solely represents "Greater than", and not "Greater than OR equal to".

This means that the number line must have OPEN circles at -3 and 3. This will give you solution D.

Answer:

4.6 :)

Step-by-step explanation:

Answer:

y= [tex]\frac{-1}{4}[/tex]x+3

Step-by-step explanation:

To write an equation for a line, we will first need to find the slope of the graph. This can be done by using the slope formula:

m= [tex]\frac{y_{2-y_{1}} }{x_{2}-x_{1}}[/tex]

Now, we can plug these points in this equation.

m= [tex]\frac{2-3}{4-0}[/tex] --> m= [tex]\frac{-1}{4}[/tex] .

Since we have derived the slope, we can simply use one of the points listed to solve for our other values by plugging them into the line formula:

y= mx+b

------------

2= [tex]\frac{-1}{4}[/tex](4)+b

2=-1+b

3= b

Therefore, the equation we get is:

y= -[tex]\frac{-1}{4}[/tex]x+3