This is very confusing

Answer:

[tex]Probability = \frac{11}{40}[/tex]

Step-by-step explanation:

Given

See attachment

Required

The probability that a 7th grader selected will play guitar.

From the attachment, we have:

[tex]7th\ graders =11+8+8+13[/tex]

[tex]7th\ graders =40[/tex]

7th graders that can play guitars are:

[tex]Guitars = 11[/tex]

So, the probability is:

[tex]Probability = \frac{Guitars}{7th\ graders}[/tex]

[tex]Probability = \frac{11}{40}[/tex]

Answer:

[tex]P(X = 0) = 0.9891[/tex]

Step-by-step explanation:

Given

[tex]\lambda = 0.011[/tex]

Required [This completes the question]

The probability of exactly 0 deaths

This probability follows a Poisson distribution, and it is given by:

[tex]P(X = x) = \frac{e^{-\lambda}\lambda^{x}}{x!}[/tex]

For 0 deaths;

[tex]x = 0[/tex]

So, the expression becomes

[tex]P(X = 0) = \frac{e^{-\lambda}\lambda^{0}}{0!}[/tex]

[tex]P(X = 0) = \frac{e^{-\lambda}\lambda^{0}}{1}[/tex]

[tex]P(X = 0) = \frac{e^{-\lambda}*1}{1}[/tex]

[tex]P(X = 0) = e^{-\lambda}[/tex]

Substitute 0.011 for [tex]\lambda[/tex]

[tex]P(X = 0) = e^{-0.011}[/tex]

[tex]P(X = 0) = 0.9891[/tex]

The probability of having exactly death is 0.9891

Answer:

it can be simplified

Ans:6x squared +9x-5

Step-by-step explanation:

8x squared minus negative 2x squared is equal to positive six squared, +9x cannot be simplified because there are no other liked terms and -5 too.

Answer:

50%

Step-by-step explanation:

Percent change is (final - initial) / initial

(120 - 80)/80 = 40/80 = 0.5 = 50%

Answer:

A = 21 sq units

Step-by-step explanation:

base = 6 units

height = 7  units

A = 1/2(6)(7) = 42/2 or 21

Answer:

0.527

Step-by-step explanation:

From the question,

The sequence is Geometry Progression (G.P)

Tₙ = arⁿ⁻¹.......................... Equation 1

Where n = number of term, a = first term, r = common ratio

Given: n = 7, a = 6, r = 2/3

Substitute these values into equation 1

T₇ = 6(2/3)⁷⁻¹

T₇ = 6(2/3)⁶

T₇ = 6(64/729)

T₇ = 384/729

T₇ = 0.527

Hence, the 7th term of the sequence is 0.527

Answer:

not trying to be mean i have no idea  please do not get mad at me i am 9 years old i want points so i am trying to awnser but it is hard for me i am in 4th grade.

Step-by-step explanation:

Answer:

-x + 1

Step-by-step explanation:

There are 3 terms in the given expression.  Apply the Distributive Property for Multiplication to the first and third:

2x + 4  - 7 - 3x + 4

Combining like terms, we get:  -x + 1

Step-by-step explanation:

The red line in the graph above measures the median home price, and this is often a better "average" for us to be used with home prices and home values. Unfortunately, it is not as easy to calculate and it does not work well with tiny data sets, so we often only see it used with very large data sets (like whole Cities, States, etc.) produced by the large real estate aggregators. Additionally, not many real estate agents know how to generate them for neighborhoods or zip codes (but we can at the Tallahassee Real Estate Blog :)).

Answer:

I thing Kaleigh read 1.5 more than Austin

Step-by-step explanation:

Answer:

18 km/h.

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Answer:

Step-by-step explanation:

[tex]s=\frac{d}{t}\\ \\ s=\frac{54km}{3hr}\\ \\ s=18\frac{km}{hr}[/tex]

Answer: 4 laps

Step-by-step explanation:

Answer:

b and d

Step-by-step explanation:

2(5x+2+x)=12x+4(b)

2(6x+2)=12x+4

First, solve the expression.

2(5x+2+x)

10x+4+2x

12x+4

So we know that one of the answers is B. and not A.

C. 2(5x+3)

10x+6

D. 2(6x+2)

12x+4

So the answers are B and D, or option B

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hope it helps

Answer:

Step-by-step explanation:

Calculations as per following questions

Answer and Step-by-step explanation:

The answer is D.

The rate of the function will be 3.5, while the initial amount is 15, so you do y - 3.5x + 15.

#teamtrees #PAW (Plant And Water)

Answer:

volume of cylinder : πr²×h = π × 5² × 15 = 375π ≈ 1177.5 cm³

Answer:

55 ? i think

Step-by-step explanation:

i just had the same question

Answer:

Step-by-step explanation:

Answer:

2.612 m

Step-by-step explanation:

circumference = (3.14)(0.5)(2) = 3.14 m

subtend mean to opposite part of 60°, so we're looking for a 360-60 = 300° segment.

so 5/6(3.14) = 2.612 m

Answer:

A)5176

B)647

Step-by-step explanation:

5176 is the highest even number that is divisible by 8

Step-by-step explanation:

7-5= 2

5-1= 4

5+1 =6

7+1= 8

therefore, the four digits even number are 2,4,6,8

Answer:

The cook made 7 pints

Step-by-step explanation:

Just minus the half pints

Answer:y = x 2 − 12 x The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. Interval Notation: ( − ∞ , ∞ ) Set-Builder Notation: { x | x ∈ R } The range is the set of all valid y values. Use the graph to find the range. Interval Notation: [ − 36 , ∞ ) Set-Builder Notation: { y | y ≥ − 36 } Determine the domain and range. Domain: ( − ∞ , ∞ ) , { x | x ∈ R } Range: [ − 36 , ∞ ) , { y | y ≥ − 36 }

Step-by-step explanation:

Answer:

Step-by-step explanation:

There is no restriction upon x so the domain is all real numbers

x=(-oo, +oo)

y has a minimum value when x=12 and y=11. Any other value of x increases the value of y. So the range is all real numbers greater than or equal to 11.

y=[11, +oo)

Answer:

a

Step-by-step explanation:

if 3and 4 origin it a would be your answer

Answer: See explanation

Step-by-step explanation:

You didn't specify the number of friends which is missing in the question. To solve this question, we need to know the number of friends but let's assume that the number of friends are 6.

Since each friend ate 2/3 of a pizza and there are 6 friends, the total amount of pizza the frends ate will be:

== 2/3 × 6

= 4 pizzas

Answer:

59.5

Step-by-step explanation:

Fig = square + triangle

Area of square =  s x s = 7^2 = 49 sq.cm

Area of triangle = 1/2 bh = 1/2 x 3 x 7 = 10.5 sq.cm

Area of fig = area of sq + area of triangle =  49 + 10.5 = 59.5 cm^2

I hope im right!!

Answer:

y ≥ 1

since the graph starts at 1 and doesn't come below that

Answer:

I hoped this helped :))

Answer:

Step-by-step explanation:

(-2,2) lies above the vertex, so the parabola opens upwards.

Vertex-form equation for an up-opening parabola with vertex (-5,-1):

y = a(x+5)² - 1, a>0

Plug in (-2,2) and solve for a:

2 = a(-2+5)² - 1

a = ⅓

Equation of parabola:

y = ⅓(x+5)² - 1

Answer:

Where is the graph of this question?

Answer:

x > 3

Step-by-step explanation:

Simply isolate the inequality to get a equivalent inequality. Treat the sign > like an equal sign, what you do to one side, you do to the other side of the inequality.

Isolate the variable, x. Divide 2 from both sides of the equation:

(2x)/2 > (6)/2

x > 6/2

x > 3

x > 3 is your equivalent inequality.

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