I need help with this pls use 3.14 with or the formula with area

Answer: D

Suppose that 35\%35%35, percent of students in a school can sing their national anthem correctly. The music teacher takes an SRS of 303030 students from the population of 750750750 students at the school and finds that 40\%40%40, percent of students sampled can sing their national anthem correctly. The teacher plans to take more samples like this.

Step-by-step explanation: Khan Academy Explanation

The mean and standard deviation is given by -

μ = 0.35 and σ = 0.09.

Given is that suppose that 35% of students in a school can sing their national anthem correctly. The music teacher takes an SRS of 30 students from the population of 750 students at the school and finds that 40% of students sampled can sing their national anthem correctly. The teacher plans to take more samples like this. Let {p} represent the proportion of a sample of 30 students in the school who can sing their national anthem correctly.

        where -

        {σ} = population standard deviation

        {N} = the size of the population

        x{i} = each value from the population

        {μ} = the population mean

The mean and standard deviation is given by -

μ = 0.35

σ = √(0.35)(0.65)/(30) = 0.48/5.5 = 0.09

σ = 0.09

Therefore, the mean and standard deviation is given by -

μ = 0.35 and σ = 0.09

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Answer:

m=x+6

Step-by-step explanation:

Let's solve for m.

mx=x(x+6)

Step 1: Divide both sides by x.

2x/x=    x²+6x/x

m=x+6

Hope this helps :)

PLS BRAINLIEST

100+2y = 180

2y=180-100

2y=80

y=40

Answer:

.15

Step-by-step explanation:

Probability of Rain = x

Probabiliy of No Rain = y

Y=1-X

Y=1-0.85

Y=.15

Answer: 2 hours=6 degrees C

              5 hours=-31 degrees C

               Half an hour=9.5 degrees C

I hope this helps. Sorry if I made a mistake. Good luck!

Step-by-step explanation:

9 x 2 hours = 18 C        14-8= 6 degrees C

9 x 5 hours = 45 C       14-45= -31 degrees C

9 x 0.5 = 4.5 C              14-4.5= 9.5 degrees C

Answer:

6b+4b first because you have to combine like terms so 10b and the others aren't like terms so you just plug them in so 10b+3ab+3

Answer:

14.2 ft

Step-by-step explanation:

tan 66° = 32/ FD

FD = 32 / tan 66° = 32 / 2.246 = 14.2

Answer:

17.4

Step-by-step explanation:

\tan D = \frac{\text{opposite}}{\text{adjacent}}=\frac{x}{7.4}

tanD=

adjacent

opposite

​

=

7.4

x

​

\tan 67=\frac{x}{7.4}

tan67=

7.4

x

​

7.4\tan 67=x

7.4tan67=x

Type into calculator and round to the nearest tenth of a foot.

Answer:

B

Step-by-step explanation:

the blue parabola shows (1/4x)^2, the red shoes x^2, you can see the horizontal stretch, hope this helps :)

Answer: im in 100% sure but i think its yes

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

I used photomath

Answer:

The answer is 70,000 sales.

Bob gets paid an annual salary of $30,000, which means that monthly he gets:

$30,000 : 12 months = $2,500 per month

x - number of sales

Bob earns 5% commission on all sales he makes: x * 5% = x * 0.05 = 0.05x

The function is:

f(x) = 2,500 + 0.05x

Bob wants to make $6,000 this month: f(x) = 6,000

2500 + 0.05x = 6000

0.05x = 6000 - 2500

0.05x = 3500

x = 3500 : 0.05

x = 70000 sales

Step-by-step explanation:

Sales for the month should amount to $70,000

Annual salary = $30,000

Commission on sales = 5%

To make 6000 in a month :

Monthly salary = $30000 / 12 = $2500

Month earning = $2500 + 5% × (monthly sales)

Month earning = $6000

Let month sales = m

6000 = 2500 + 0.05m

6000 - 2500 = 0.05m

3500 = 0.05m

m = 3500 / 0.05

m = 70,000

Sales for the month should be 70,000

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Answer:

43.96

Step-by-step explanation:

To find Circumference the formula is

2*3.14*R=C

replace R with your radious which is 7

2*3.14*7=43.96

Answer:

24 pack of mountain dew=9.99

1 pack of mountain dew=9.99/24=0.41625

Answer:

grufhvdyfvgysgddgfvsygujsbchusb

Step-by-step explanation:

I think it is a 6x+4

The required area of the frame shown is 5x + 3. Option C is correct.

The surface area of any shape is the area of the shape that is faced or the surface area is the amount of area covering the exterior of a 3D shape.

Here,
The area of the picture is given as,
= 2x × x
= 2x²

The area of the whole painting with frame.

= (x + 1)(2x+ 3)
= 2x² + 5x + 3

The area of the frame is given as,
= area of picture with frame - an area of the picture,
= 2x² + 5x + 3 - 2x²
= 5x + 3

Thus, the required area of the frame shown is 5x + 3. Option C is correct.

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Answer: 14 presents

Step-by-step explanation:

5 presents 42 cm tape

——————I-———————.

15 cm tape 1

= (5x42) /15 = 14 presents

Answer:

7 or -7

Step-by-step explanation:

the question is asking for x to to the second power which is x squared or x^2

so setting x^2=49

square root both sides of the equation so that x is by itself and the other side is just ±√(49). which ±√49 is just 7 or -7

Hope that helps :)

Please gve brainliest

Answer:

25%, 40 trees, 50%, 36 trees

Step-by-step explanation:

Mary's age = x

Billi's age = x+6

So, Mary age + Billi age = x + (x + 6)

Sum of their ages = 2x + 6

So, 2x + 6= 48

2x = 48 - 6

2x = 42

x = 42/2

Mary age = x = 21

And Billi age = x +6= 21 + 6 = 27

So Mary = 21

And Billi = 27

Lets check!

21 + 27 = 48

So therefore their ages add up to 48

So the answer is correct!

Answer:

2n + 20

Step-by-step explanation:

Answer:

-1/2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer: 10

working below!

Answers are

1.

∠ABC and ∠EBD are vertical angles.

∠ABE and ∠CBD are vertical angles.

∠ABE and ∠DBE are adjacent angles.

∠ABC and CBD are adjacent angles.

2.

∠LMN and <RMQ are vertical angles.

∠SML and ∠QMP are vertical angles.

∠LMN and ∠PMN are adjacent angles.

∠NMP and ∠PMQ are adjacent angles.

Adjacent and vertical angles:

Adjacent angles: Two angles with a common arm and vertex are called adjacent angles.

They share  a common arm and common vertex.

Adjacent angles are not always equal in measure

Vertical angles: When two lines intersect each other, then the pair of opposite angles formed at the vertex are called vertical angles.

They share a common vertex, but no common arm.

Vertically opposite angles are equal in measure.

(Here)

For question - 1,

∠ABC and ∠EBD are vertical angles.

∠ABE and ∠CBD are vertical angles.

∠ABE and ∠DBE are adjacent angles.

∠ABC and CBD are adjacent angles.

For question - 2,

∠LMN and <RMQ are vertical angles.

∠SML and ∠QMP are vertical angles.

∠LMN and ∠PMN are adjacent angles.

∠NMP and ∠PMQ are adjacent angles.

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Answer:

[tex]x=-15.8994[/tex]

Step-by-step explanation:

Skills needed: Solving one variable equations, Multiplication

1) We are given: [tex]-11.818=-7+\frac{x}{3.3}[/tex], and we need to solve for "[tex]x[/tex]"

2) In order to do this, you need to isolate the variable. In other words, you need to make sure the term involving  "[tex]x[/tex]" is on one side of the equation, while everything else is on the other side.

3) [tex]-11.818+7 = -7+\frac{x}{3.3} +7[/tex]

[tex]-11.818+7=-4.818[/tex]

-7 and 7 on the right side cancel out.

4) So you are left with: [tex]-4.818=\frac{x}{3.3}[/tex]

5) So then: [tex]-4.818 * 3.3 = x[/tex] (that star sign in between -4.818 and 3.3 is a multiplication sign)

[tex]-4.818*3.3 = -15.8994[/tex], so [tex]x = -15.8994[/tex]

Hope this helps and have a nice day!! :] :) :D

Answer:

V≈55.98

Step-by-step explanation:

V=WHL=1.33x4.67x9≈55.978

Answer:

so,

the room (2×3) × (3×3) feet, or 6x9 feet.

6x9= 54square feet

54 x 1.75= $94.50

The solution set for the quadratic equation (2x - 7)² = 25 is 6 and 1.

A quadratic equation is an algebraic expression in the form of variables and constants.

A quadratic equation has two roots as its degree is two.

The solution set for a quadratic equation is the roots of the quadratic equation.

Given, (2x - 7)² = 25.

2x - 7 = ± 5.

2x = ± 5 + 7.

x = (± 5 + 7)/2.

x = 12/2 Or 2/2.

x = 6 or 1.

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Answer:

2

Step-by-step explanation:

Answer: 20

Step-by-step explanation: