Sasha hasn’t won any of the 40 games she has played with her four friends so far. She wants to win at least 20%. How many does she need to win in a row to get 20%?

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[tex]2x - 11 = k[/tex]

Add sides 11

[tex]2x - 11 + 11 = k + 11[/tex]

Simplification

[tex]2x = k + 11[/tex]

Divide sides by 2

[tex] \frac{2}{2} x = \frac{k + 11}{2} \\ [/tex]

[tex]x = \frac{k + 11}{2} \\ [/tex]

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Thus the correct answer is (( B )) .

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Answer:

5, 3

Step-by-step explanation:

correct on edge2020

Answer:

(5, 3)

Step-by-step explanation:

late but still lol

Answer: Natural: G ; Whole: B ; Integer: H; Rational: A, D, F, J, I, E; Irrational: C, K

Step-by-step explanation:

Natural numbers- Counting numbers (1, 2, 3, 4, etc.)

Whole numbers- Counting numbers and 0

Integers- Counting numbers, 0, and their opposites

Rational numbers- any number that can be written as a fraction in which 0 isn't the denominator

Irrational numbers- all other numbers

my favorites --

-- jormungand

-- the god of high school

-- stars align

-- haikyuu

-- terror in resonance

-- bungou stray dogs

-- attack on titan

Answer:

1:3:4

Step-by-step explanation:

[tex]\frac{5}{5}: \frac{15}{5}: \frac{20}{5}=1:3:4[/tex]

Answer:  1.2

Step-by-step explanation:

Let X denotes the grades on a  language midterm at Oak Academy.

As per given ,

X follows normal distribution ( because it has symmetric graph)

[tex]\mu=67,\ \ \ \ \sigma= 2.5[/tex]

Formula for z : [tex]z=\dfrac{X-\mu}{\sigma}[/tex]

For X = 70, we have

[tex]z=\dfrac{70-67}{2.5}=\dfrac{3}{2.5}=1.2[/tex]

Hence, the z-score for Ishaan's exam grade = 1.2

z-scores are the corresponding standard normal variate's values for normal variates' values. The z-score for Ishaan's grade is 1.2

If we've got a normal distribution, then we can convert it to standard normal distribution and its values will give us the z score.

If we have

[tex]X \sim N(\mu, \sigma)[/tex]

(X is following normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] )

then it can be converted to standard normal distribution as

[tex]Z = \dfrac{X - \mu}{\sigma}, \\\\Z \sim N(0,1)[/tex]

(Know the fact that in continuous distribution, probability of a single point is 0, so we can write

[tex]P(Z \leq z) = P(Z < z) )[/tex]

Also, know that if we look for Z = z in z tables, the p-value we get is

[tex]P(Z \leq z) = \rm p \: value[/tex]

For the given case, if we suppose the random variable X's values as scores of the grades on given language midterm at Oak Academy, then, as it is symmetric around value 67, with σ = 2.5, thus,

[tex]X = N(\mu = 67, \sigma = 2.5)[/tex]

Its given that Ishaan scored X = 70

The standard normal variate conversion of X is given by:

[tex]Z = \dfrac{X- \mu}{\sigma} = \dfrac{X - 67}{2.5}[/tex]

Thus, z-scores for Ishaan's score is: [tex]Z = \dfrac{70 - 67}{2.5} = \dfrac{3}{2.5} = 1.2[/tex]

Learn more about standard normal distribution here:

https://brainly.com/question/10984889

Answer:

The elevation of the rest stop is 37.5 feet above sea level.

Step-by-step explanation:

Given that the elevation at the top of the hill is 127 feet above sea level and The valley floor is 52 feet below sea level.

So, the total length from the top of the hill to the valley floor

[tex]l= 127+52 = 179[/tex] feet

So, length of halfway [tex]= l/2=179/2=89.5[/tex] feet ...(i)

Assuming that the stop for rest, the halfway between the top of the hill and the valley floor, is at x feet above sea level.

So, the length between the stop position and the valley floor [tex]= 52 +x[/tex] feet.

As the stop position is at half-way, so by using equation (i), we have,

[tex]52 + x = 89.5 \\\\\Rightarrow x =89.5-52 \\\\[/tex]

[tex]\Rightarrow x=37.5[/tex] feet

Hence, the elevation of the rest stop is 37.5 feet above sea level.

Answer:

Conservation of momentum means that the final momentum must be the same as the initial momentum, where the momentum is defined as:

P = m*v

where m is mass, and v is velocity.

First, let's calculate Pi, the initial momentum.

Pi = Pi₁ + Pi₂

Where the subscripts 1 and 2 refer to each puck:

Pi₁ = 0.17kg*15m/s = 2.55 (kg*m/s)

Pi₂ = 0.11kg*0m/s = 0 (kg*m/s)

Pi = 2.55 (kg*m/s) + 0 (kg*m/s) = 2.55 (kg*m/s)

Now, after the collision we have that:

The first puck comes to rest, then:

Pf₁ = 0.17kg*0m/s =  0 (kg*m/s)

And the second puck will have a velocity v, that we want to find:

Pf₂ = 0.11kg*v

Pf = Pf₁ + Pf₂ = 0 (kg*m/s) +  0.11kg*v =  0.11kg*v

And by conservation of momentum we have:

Pi = Pf

2.55 (kg*m/s) = 0.11kg*v

We divide in both sides by 0.11kg

2.55 (kg*m/s)/0.11kg = v

23.2 m/s = v

And from this, the final momentum will be the same as the initial:

Pf = 23.2m/s*0.11kg = 2.55 (kg*m/s)

The total final momentum of the system is 2.55 Kg m/sec and this can be determined by conserving the momentum.

Given :

A hockey puck with a mass of 0.17 kg is traveling to the right along the ice at 15 m/s it strikes a second hockey puck with a mass of 0.11 kg the first hockey puck comes to rest after the collision of conservation of momentum holds.

The formula of the momentum is given below:

P = mv

Now, let conserve the moment, that is:

[tex]\rm P_i=P_f[/tex]   --- (1)

where [tex]\rm P_i[/tex] is the initial momentum and [tex]\rm P_f[/tex] is the final momentum.

First, determine the initial momentum.

[tex]\rm P_i = 0.17\times 15 + 0.11\times 0= 2.55\;Kg\;m/sec[/tex]

Now, determine the final momentum.

[tex]\rm P_f = 0.17\times 0+ 0.11\times v = 0.11v\;Kg\;m/sec[/tex]

Now. substitute the value of [tex]\rm P_i[/tex] and [tex]\rm P_f[/tex] in the equation (1).

[tex]\rm 2.55=0.11v[/tex]

v = 23.18 m/sec

So, the final momentum can be calculated as:

[tex]\rm P = 23.18 \times 0.11[/tex]

P = 2.55 Kg m/sec

For more information, refer to the link given below:

https://brainly.com/question/4956182

Answer:

(-5, 0)

Step-by-step explanation:

f(x) = (x - 1)(x2 + x - 20) = 0

x - 1 = 0

x = 1

x^2 + x - 20 = (x + 5)(x - 4)

x + 5 = 0; x - 4 = 0

x = -5; x = 4

Answer: (-5, 0)

Answer:

The answer is B.

Step-by-step explanation:

when x is 0, y is 5. So that is the yintercept and 4-5=-1 -4-0=-4 do 1/4

Answer:

27. chord

28. radius

29. diameter

30. secant

31. tangent

32. secant

Step-by-step explanation:

I guess thats the correct answer

Answer:

C

Step-by-step explanation:

Cant really give one, im just reviewing.

9514 1404 393

Answer:

  7 +11·i

Step-by-step explanation:

  √-121 = (√-1)(√121) = i·11

So, 7 +√-121 = 7 +11·i

Answer:

The value of x = 513

Step-by-step explanation:

Let x, y, and z be the three numbers

Given

[tex]x+y+z=855[/tex]

Assuming x be the number which is 50% more than the sum of the other two numbers.

i.e.

(150)% of (y+z) = 1.5(y+z)

                y + z = x/1.5

As we know that

[tex]x + y + z = 855[/tex]

substituting y + z = x / 1.5 in the equation

[tex]x+\frac{x}{1.5}=855[/tex]

Multiply both sides by 1.5

[tex]x\cdot \:1.5+\frac{x}{1.5}\cdot \:1.5=855\cdot \:1.5[/tex]

[tex]1.5x+x=1282.5[/tex]

[tex]2.5x=1282.5[/tex]

Divide both sides by 2.5

[tex]\frac{2.5x}{2.5}=\frac{1282.5}{2.5}[/tex]

[tex]x = 513[/tex]

Therefore, the value of x = 513

Answer:

non-included

Step-by-step explanation:

A non included side of a polygon shares a side with only one angle of a pair of angles.

Answer: This type of angles are  adjacent interior angles.

Answer:

What even is the question?

Step-by-step explanation:

There is no question in what u said.

Answer:

A.

Step-by-step explanation:

Answer:

I dont know why my answer was removed nor why i was warned for it. But the answer is C

Step-by-step explanation:

Answer: 1, 7 is he answer I just took the quiz and got it correct.

Step-by-step explanation:

Alright, it went 1 to the right and down 2 times.

So for point B, you calculate the opposite.

Point B goes 1 left while going up by 2.

(9 - 1, 3 + 2) = (8, 5)

Pre-image point A is (8, 5)

The preimage of point A before a translation right 1 unit and down 2 units

is (8, 5).

Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.

Dilation: The preimage is scaled up or down to create the image.

Reflection: The picture is a preimage that has been reversed.

Rotation: Around a given point, the preimage is rotated to create the final image.

Translation: The image is translated and moved a fixed amount from the preimage.

Given, The image point of A after a translation right 1 unit and down 2 units is point B (9, 3) so we go exact opposite 1 unit left and 2 units up which is

(- 1, 2).

∴ The pre-image point A is (8, 5).

learn more about translations here :

https://brainly.com/question/12463306

#SPJ2

Answer:

B and C

Step-by-step explanation:

Just did it on edg

Answer:

Which of these statements are true for joint variations? Check all that apply.

A.There are at least two constants of proportionality.

B.The dependent variable is related to the product of the independent variables by a constant of proportionality, k.

C.The equation must have at least two independent variables.

D.The constant of proportionality is 1.

B. The dependent variable is related to the product of the independent variables by a constant of proportionality, k.

C. The equation must have at least two independent variables.

These are the correct answers

Answer:

Step-by-step explanation:

20. r= S/2πh

21. y= 2-3/5x

22. 4.3333333 minutes

23. 80 ounces

24. x= 21

25. c= -1

Answer:

-5, -3.5, -2.5, 0, 5

Step-by-step explanation:

Answer:

-5, -3.5, -2.5, 0, 5

Step-by-step explanation:

Just got it right on the assignment

Edg 2021

Answer:

60 : 4 :: 90 : c   proportion

60c = 4(90)       product means/extremes

60c = 360

c = 6

 Or  90 is 1.5 times 60, therefore you need 1.5 times 4 cups.

Answer:

4 cups

Step-by-step explanation:

cause I said so....

Answer:

Conductors are materials that provide easy paths for the flow of electrons. Conductors are generally made from materials that have large, heavy atoms. And insulators are the things that have very large resistance to the flow of electric current.

Hope this helps!!

Answer:

correct answer is B

Step-by-step explanation:

Hope this helps

Answer:

I hope it help, it can be wrong, Im so sorry!

Step-by-step explanation:

1.

y=x+6

y=x6

2.

y=2x+1

y=x.2+1

y=x.2

y=2

Answer: I think it's 160

Step-by-step explanation:

Answer:

Step-by-step explanation:

17 x 100 = 1,700

17 x 10 x 10 = 1,700

(1 ten 7 ones) x 100 = 1,700

All of them go into the thousands column.

Answer: die.

Step-by-step explanation: