Which of these statements is true? Check all that apply. CDs have a higher mean than digital. The range of digital is 800. The median of CDs is 400. Both have the same interquartile range. Both have the same median. Digital's mean is around 467.

Using proportions, it is found that he predicts that the arrow will land on the green section 24 times.

A proportion is a fraction of a total amount.

Considering that each trial has a 1/2 probability of resulting in heads, the fraction correponding to the probability of simultaneously flipping three "heads" is given by:

[tex]p = \left(\frac{1}{2}\right)^3 = \frac{1}{8}[/tex]

Considering that he does this 24 times, we apply the proportion, hence:

[tex]\frac{1}{8} \times 24 = 3[/tex].

He predicts that the arrow will land on the green section 24 times.

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Answer:

20

Step-by-step explanation:

Area = ((7+3) x 4) ÷ 2 = 20

Answer:

see below

Step-by-step explanation:

2 1/2+ 3 3/16 + 7/8

Get a common denominator of 16

2 8/16 + 3 3/16 + 14/16

5 25/16

5 + 16/16 + 9/16

6 9/16

Subtract this from 8 ft

8 - 6 9/16

Borrow 1 from 8 in the form of 16/16

7 16/16 - 6 9/16

1 7/16

b  1 7/16 - 1 1/3

The common denominator is 48

1 21/48    - 1 16/48

5/48

Answer:

2a)   [tex]1\frac{7}{16}[/tex]

2b)   [tex]\frac{5}{48}[/tex]

Step-by-step explanation:

The first thing we need to do is add all the fractions together so,

2a)      [tex]2\frac{1}{2} +3\frac{3}{16}+\frac{7}{8}[/tex]

We need to find the LCM of the denominators in order to properly add the fractions together so the LCM is 16

[tex]2\frac{1}{2} +3\frac{3}{16}+\frac{7}{8}[/tex]   =  [tex]2\frac{8}{16} +3\frac{3}{16} +\frac{14}{16} = 5\frac{25}{16} =6\frac{9}{16}[/tex]

Now we subtract this from 8 as asked in the question,

[tex]8-6\frac{9}{16} =\frac{8}{1} -\frac{105}{16} =\frac{128}{16} -\frac{105}{16}=\frac{23}{16} =1\frac{7}{16}[/tex]

2b) We are asked to minus the fraction   [tex]1\frac{7}{16}[/tex]   from    [tex]1\frac{1}{3}[/tex]

Find the common denominator which is 48

[tex]1\frac{7}{16} -1\frac{1}{3} =1\frac{21}{48} -1\frac{16}{48} =\frac{5}{48}[/tex]

Answer:

please add an image my bro

Step-by-step explanation:

we cant answer without knowing what it looks like

Answer:

answer my questions also

Step-by-step explanation:

Answer:

0.8

Step-by-step explanation:

Solution:

0.8

Step by step explanation:

1) (0- 8/10) - (0-8/5)

2) Simplfy. 4/5

3) (0-4/5) - (-8/5)

4) (-4) - (-8)/5 = 4/5

Final result: 4/5= 0.8000

Answer:

Area = 6x^2 + 9x - 15.

Step-by-step explanation:

Its area = height * width

= 3 *  (2x2 + 3x – 5)

=  6x^2 + 9x - 15.

Answer:

f(3) = 3

Step-by-step explanation:

f(x) = 2x^2 – 5x

Let x = 3

f(3) = 2(3)^2 - 5(3)

      = 2*9 -15

      = 18-15

      =3

Answer:

f(3)=3

Step-by-step explanation:

This question asks us to find f(3). We want to find what f(x), or y is, when x is equal to 3.

f(x)=2x^2-5x

Substitute 3 in for x.

f(3)=2(3)^2-5(3)

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

Evaluate the exponent first. 3^2 is the same as 3*3, which is equal to 9.

f(3)=2(9)-5(3)

Multiply 2 and 9

f(3)=18-5(3)

Multiply 5 and 3

f(3)=18-15

Subtract 15 from 18

f(3)=3

Answer:

1/4

Hope its correct, if so. pls mrk as brainliest

Answer:

top lines of explanation

Step-by-step explanation:

at the secretary job she made 12.75 an hour

second job she made 13.50 an hour

180 minutes is 3 hours divide 40.50 by 3 and get 13.50

102.00 divided by 8 is 12.75

Step-by-step explanation:

8 hours = 102.00

1 hour = 102 ÷ 8 = 12.75

180 min = 3hr

3hr = 40.50

1hr = 40.50 ÷ 3 = 13.5

2nd job

Answer:

The height of the tower = 24 units.

Explanation:

In the question above, we are given the following variables.

The total number of blocks used = 312 blocks

The bottom layer( base of the tower) = 13 blocks

We are to find how tall the tower is = height of the tower = unknown.

The total number of blocks used = Volume of the tower = 312 cubic units(blocks)

Area of the base = number of the blocks used in the bottoms layer = 13 square units( block).

Because blocks are used, we assume that this is a Rectangular based prism

The Volume of a Rectangular based prism = Area of the base × h

312 = 13 × h

h = 312 cubic units ÷ 13 square units.

h = 24 units.

There fore, the height of the tower = 24 units

Answer:

Find roots of x4−81=0 by solving for x. x=3,−3

Step-by-step explanation:

The given equation [tex]x^4[/tex] - 81 = 0 has a total of two real roots x = 3 and

x = -3.

We have,

The given equation [tex]x^4[/tex] - 81 = 0 can be factored as a difference of squares:

[tex](x^2)^2 - 9^2 = 0\\(x^2 - 9)(x^2 + 9) = 0[/tex]

Further simplifying:

(x - 3)(x + 3)(x² + 9) = 0

From this factorization, the equation has two linear factors (x - 3) and

(x + 3) and one quadratic factor (x² + 9).

The linear factors, (x - 3) and (x + 3), will each provide one real root since they are linear equations.

x = 3 and x = -3.

The quadratic factor (x² + 9) has no real roots.

This is because the discriminant (b² - 4ac) of the quadratic equation is negative (a = 1, b = 0, c = 9), indicating that there are no real solutions.

Therefore,

The given equation [tex]x^4[/tex] - 81 = 0 has a total of two real roots,

x = 3 and x = -3.

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This question is incomplete because it lacks the appropriate diagram.

Please find attached to this answer , the appropriate diagram

Answer:

First option tan x° = 8 ÷6

Step-by-step explanation:

When we solve for angles in a right angled triangle or we are trying to find one if the sides of a right angled triangle, we used trigonometric functions to find our answers. These trigonometric functions include Sine (sin) , Cosine (cos) and Tangent (tan)

Tangent also called short form tan is used when solving problems involving a right angled triangle.

A right angled triangle has 3 sides, the Hypotenuse, the opposite side and the adjacent side.

When we are asked to find the tangent of an angle,

tan = Opposite side / Adjacent side

In the question above, we are asked to find tan x° where x is the angle.

The opposite side = 8cm

The adjacent side = 6cm

Therefore, tan x° = 8cm/6cm = 8cm ÷ 6cm

Answer:

D

Step-by-step explanation:

Each input can not have 2 outputs or else it’s not a function. 2 maps to 21 and 42. It MPs to two outputs. It’s not a function

Answer:

278

71.5 for triangles

Step-by-step explanation:

Because 32 + 45 = 82

its a circle so a circle is 360 degrees

so 360 - 82 =

278

Triangles: 180 - 37 then 143 ÷ 2 = 71.5

Your welcome!!

Answer:

your camera is too close, i don't understand

Step-by-step explanation:

Answer:

What is the question?

Answer:

see explanation

Step-by-step explanation:

The triangular prism has 3 rectangular faces and 2 congruent triangular faces.

rectangular base CDEF = 8 × 2 = 16 cm²

rectangular side ABFE = 6 × 2 = 12 cm²

sloping rectangle ABCD = 10 × 2 = 20 cm²

2 triangular faces = 2 × [tex]\frac{1}{2}[/tex] × 8 × 6 = 48 cm²

Total surface area = 16 + 12 + 20 + 48 = 96 cm²

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

The volume (V) of the prism is calculated as

V = Bh ( B  is the area of triangular face and h the depth of the prism )

B = [tex]\frac{1}{2}[/tex] × 8 × 6 = 24 cm² and h = 2 cm

V = 24 × 2 = 48 cm³

Answer:

27/28

Step-by-step explanation:

Given the principal and annual interest rate, the total amount accrued after 10 years is approximately $4,048.06.

The compound interest formula is expressed mathematically as;

A = P(1 + r/n)^(n*t)

Where A is amount accrued, P is principal, r is interest rate, n is number of times interest applied per time period and t is time.

Given the data in the question;

Plug the given values into the formula above and solve for A.

A = P(1 + r/n)^(n*t)

A = 3000(1 + 0.03/12)^(12 × 10)

A = 3000(1 + 0.0025 )¹²⁰

A = 3000(1.0025 )¹²⁰

A = 3000( 1.34935354 )

A = $4,048.06

Given the principal and annual interest rate, the total amount accrued after 10 years is approximately $4,048.06.

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Answer:

£17.51

i used try and error

Answer:

185.714% increase

Step-by-step explanation:

Solution:

Calculate percentage change

from V1 = 14 to V2 = 40

(2−1)|1|×100

=(40−14)|14|×100

=2614×100

=1.85714×100

=185.714%change

=185.714%increase

Answer:

the digit in the ten thousandths place is 1

Step-by-step explanation:

Answer:

1 is the digit that is in the ten thousandth place

Step-by-step explanation:

can i get brainlisest

Answer:

midpoint of chord ab is (-2, 12) slope of chord ab is 1/2

Step-by-step explanation:

e). 60

f). [tex]\frac{4}{9}[/tex]

Answer:

Area of Regular Polygon: ( About ) 716.6 m^2; Option B

Step-by-step explanation:

~ In this situation we can apply the formula 1/2 * a * P, provided a ⇒ apothem, and P ⇒ Perimeter of the shape ~

Here we are not directly provided with the apothem, so we have to first plan out our procedure step-by-step:

Let us first divide this dodecagon into 12 triangles, each equilateral provided that this is a regular polygon ( implied ). Now let us draw an altitude to one of these triangles, and provided these are equilateral triangles Coincidence Theorem can be applied to this specific triangle. That would mean this altitude is both an angle bisector and a median, which can help us determine the tan degree of the mini triangle formed by the altitude, and the length of one of the sides of this mini triangle.

1. Knowing that the altitude splits the base of the triangle into the two congruent parts ⇒ one of the congruent parts should be ⇒ 8/2 = 4 meters

2. Now the triangles formed through spliting this figure are all ≅, so one of the angles of the triangle is 360/12 = 30 degrees. The mini triangle formed should thus have a measure of 30/2 as the altitude is an angle bisector ⇒ tan 15.

3. From this you can create a proportion, with a  ⇒ apothem:

tan 15/ 1 = 4/a ⇒ tan 15 * a = 4 ⇒ a = 4/tan 15° ⇒ a = ( About ) 14.93

4. The perimeter of this shape would be 8 * 12 ⇒ 96 meters

5. Now let us solve for the area of this regular polygon through substitution into the formula 1/2 * a * P ⇒ 1/2 * 14/93 * 96 = ( About ) 716.64 meters^2

Answer ⇒ Area of Regular Polygon: ( About ) 716.6 m^2

Answer:

9.2

Step-by-step explanation:

Answer:

d = 32 m

General Formulas and Concepts:

Symbols

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Geometry

Area of a Circle Formula: A = πr²

Radius Formula: [tex]\displaystyle r = \frac{d}{2}[/tex]

Step-by-step explanation:

Step 1: Define

Identify variables

A = 256π m²

Step 2: Derive

Rewrite formula

Step 3: Solve for d

Answer:

9n + 13

Step-by-step explanation:

(54n + 78)/6

Divide 6 from all terms within the parenthesis:

(54n)/6 = 9n

(78)/6 = 13

9n + 13 is your answer.

~

Answer: 54n+13

Simplify

78÷6=13

54n+78/6=54n+13

Answer:

10x − (x − 2) = 2x − (40 + x).

The missing number is 40.

Step-by-step explanation:

Let the missing number be a, Then:

10x - (x - 2) = 2x - (a + x)

10x - x + 2 = 2x - a + x

9x - 2x - x = -a - 2

6x = -a - 2

When x = -7:

6(-7) = - a - 2

-42 + 2 = -a

-40 = -a

a = 40.

So the equation is

10x − (x − 2) = 2x − (40 + x).

Answer:Answer B

Step-by-step explanation:

You get more money that way.