Are those line below parallel,perpendicular,intersecting? Explain how you know.

option b is the correct answer

Answer:

Mean is 50

Step-by-step explanation:

20 + 30 + 40 + 50 + 60 + 70 + 80 = 350

350 / 7 = 50

Answer:

50

Step-by-step explanation:

Mean means average number which sum of all numbers divided how many numbers we are investigating

We are investigating 7 numbers

The total sum of these numbers are:

20 + 30 + 40 +50+ 60+70+80= 350

Mean = 350/7= 50

Answer:

S = {2,4,6,8} P(2) = 3/20  P(4) = 3/10 P(6) = 3/10 P(8)=  1/4

Step-by-step explanation:

There are 30 draws

She got the tile numbered 2 3 times

P(2) = 3/20 = .15

She got the tile numbered 4 6 times

P(4) = 6/20 = 3/10 = .3

She got the tile numbered 6 6 times

P(6) = 6/20 = 3/10 = .3

She got the tile numbered 8 5 times

P(8) = 5/20 = 1/4 = .25

Answer:

the anser is 24,32,56

Step-by-step explanation:

i did it got it wrong and then it gave me the right anser witch is that

Answer:

24,32,and 56 is right. trust me

Step-by-step explanation:

Answer:

To do this you need to fill in the equation:  1/2 height*sidelength *width. So, height = 8 ft, side length = 4 ft, and width = 24 ft. So, plugging in the numbers you get:

1/2(8) * 4 * 24 =

4*4*24 = 384 ft

Step-by-step explanation:

Answer:

345 ft^3

Step-by-step explanation:

B=1/2(5)(6)=15

V=15(23)=345

Answer:

Step-by-step explanation:

Given

Solving for z:

Answer:

C

Step-by-step explanation:

(x-4)(x+10)=x^2+6x-40

Answer:

C. X-4

Step-by-step explanation:

A P E X

Answer:

P(B) = 0.85

Step-by-step explanation:

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

[tex]P(A) = 0.24, P(B|A) = 0.85[/tex]

These events are independent.

This means that [tex]P(A \cap B) = P(A)*P(B)[/tex]. So

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

[tex]P(B|A) = \frac{P(A)*P(B)}{P(A)}[/tex]

[tex]P(B|A) = P(B)[/tex]

So

[tex]P(B) = 0.85[/tex]

Answer:

x=3

Step-by-step explanation:

Answer:

The answer would be 3.

Step-by-step explanation:

Answer:

The probability is 1/36.

Step-by-step explanation:

2/3 are dog owners

1/6 are cat owners

1/6 are bird owners

If you choose two owners, there is a 1/6 chance that you will choose a cat owner and a 1/6 chance you will choose a bird owner. Each of these are independent, so you simply multiply 1/6 by 1/6.

1/6 * 1/6= 1/36

Answer:

A cone with a diameter of 18ft and a slant height of 30ft

Using Pythagorean theorem, the height is calculated by:

H = sqrt(18^2 - (30/2)^2) = 9.95

The surface area:

A = lateral surface area + base

A = pi x radius x slant height + pi x radius^2

A = pi x (30/2) x 18 + pi x (30/2)^2 = ~1555.1 (ft2)

The volume:

V = base x height x (1/3)

V = pi x radius^2 x height

V = pi x (30/2)^2 x 9.95 = 7033.2 (ft3)

Hope this helps!

:)

Answer:

For online calculators you can type sqrt() or just sqrt and it will do it for you

Answer:

Step-by-step explanation:

To simplify radicals that are not perfect squares, we need a new method.

Example: [tex]\sqrt{27}[/tex]

27 is not a perfect square square the square root cannot be used.

[tex]\sqrt{27} = 5.19615242271[/tex]

To solve this, we need to break down the radical into simpler parts.

[tex]\sqrt{27} = \sqrt{3} * \sqrt{9}[/tex]

[tex]\sqrt{9} = 3[/tex]

[tex]\sqrt{3}[/tex] cannot be simplified

[tex]\sqrt{27}[/tex] = 3[tex]\sqrt{3}[/tex]

Good luck on your test!

I'm always happy to help :)

Answer:

The final answer is [tex]7x +7[/tex] .

Step-by-step explanation:

-Solve equation:

[tex]5x + 7 + 2x[/tex]

-Combine like terms:

[tex]5x + 7 + 2x[/tex]

[tex]7x +7[/tex]

-Result:

[tex]7x +7[/tex]

Answer:

A) Measure of an interior angle of polygon = 150°

B) No of sides = 12

C) Sum of all interior angles = 1800°

Step-by-step explanation:

Measure of interior angle of polygon = 180°- measure of exterior angle of polygon

= 180°-30°

= 150°

B.

[tex]No.\: of \: sides = \frac{360\degree}{30\degree} = 12\\\\C.\\Sum\:of\: all \:interior\: angles \\= (n-2)\times 180\degree\\= (12-2) \times 180\degree\\= 10\times 180\degree\\= 1800\degree[/tex]

The answer is B part

As the requirement for the student is either a senior or one who studies maths or both.

So, just add the values within the two venn circles divide it by total no of values.

=> 240+40+110/240+40+110+840

=> 360/1200

Answer:

B

Step-by-step explanation:

840 people aren't senior or don't takes math.

210 + 40 = 250 are seniors

110 + 40 = 150 people take math

In this class has 840 + 210 + 40 + 110 = 1200 people => All

210 + 40 + 110 = 360 people are seniors or take math. => P( S U M)

Probabilty that a randomly selected student is a senior or takes math =>[tex]\frac{P(S U M)}{All}[/tex]

[tex]\frac{P(S U M)}{All} = \frac{360}{1200}[/tex]

Hope this helps ^-^

Answer:

c) 3

Step-by-step explanation:

Answer:

work is shown and pictured

Answer: 7 1/30

Step-by-step explanation:

Tina loves to read. Before breakfast, she read 2 1/2 pages, at lunch she read 3 1/5 pages, and after dinner she read 1 1/3 pages. To find the total, we add all the pages together. This will be:

2 1/2 + 3 1/5 + 1 1/3

The LCM of 2, 5 and 3 is 30.

= 2 15/30 + 3 6/30 + 1 10/30

= 6 31/30

= 7 1/30.

Answer:

Step-by-step explanation:

Answer:

3540

Step-by-step explanation:

There are 3520 yards in two miles and 1760 in one mile you multiply 1760 by 2 then add 20

Answer:

The answer to this question is A, or -2 to -1.

Hope this helps.

Answer: A

Step-by-step explanation:

Answer:

Its C On Edge Just Took The Quiz

Step-by-step

Answer:

c

Step-by-step explanation:

took quiz 100%

Answer: a ≤ 4 or (-∞, 4]

Step-by-step explanation:

Here we have the inequality:

4a ≤ 16

this means that the left sides is less or equal than the right side.

First, find the equal part:

4*a = 16

a = 16/4 = 4

So the maximum possible value of a is 4.

Now, all the values of a smaller than 4 also make the inequality true (even the negative values) so the possible values of a are:

a ≤ 4 or (-∞, 4]

Answer:

Any number that is less or equal to 4 makes this inequality true.

Step-by-step explanation:

In order to calculate the numbers that make this inequality valid, we need to solve it for "a". This can be done in the same manner as we would solve an equation, although we must pay attention to the inequality. This is done below:

[tex]4*a \leq 16\\a \leq 16/4\\a \leq 4[/tex]

Any number that is less or equal to 4 makes this inequality true.

Answer:

1 1/4 48's.

Step-by-step explanation:

5 * 12 = 60

60 / 48 = 1 12/48

= 1 1/4.

Answer:

1 48

Step-by-step explanation:

if 2 twelve is equal to 24 and 24+24= 48 then 4 12s would equal one 48 with 12 still remaining

Answer:

Step-by-step explanation:

Multiplicity of a number is the number of times the factor of a given function appears in the factor form of such given equation. For us to know the multiplicity of the root of the function, first we must know its root.

Factorizing the given quadratic function  x²−8x+16=0

[tex]x^{2} -4x-4x+16 = 0\\x(x-4)-4(x-4)=0\\(x-4)(x-4) = 0\\x-4 = 0 and x-4 = 0\\x = 4\ twice[/tex]

Since the root of the function which is 4 appears twice then the multiplicity of the root is 2

Answer:

log2(0.25) = -2

512 = 8^3

Step-by-step explanation:

Rewrite the following equation in logarithmic form.   0.25 = 2^-2

Rewrite the following equation in exponential form.  log8 (512) = 3

Answer:

sin^2(45) = (√2/2)^2 = 1/2

Step-by-step explanation:

sin2x = sin2 * x = 0.909x

sin(2(45)) = sin90 = 1

Hope this helps.

Answer:

The answer to this is [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

I did the assignment, hope it helps! :)

Answer:

work is shown and pictured

Answer:

Step-by-step explanation:

For example, if your money earns an 8 percent interest rate, it will triple in 14 years and 5 months (115 divided by 8 equals 14.4). If your money earns a 5 percent interest rate, it will triple in 23 years (115 divided by 5 equals 23).

The trick is to exploit the difference of squares formula,

[tex]a^2-b^2=(a-b)(a+b)[/tex]

Set a = √8 and b = √6, so that a + b is the expression in the denominator. Multiply by its conjugate a - b:

[tex](\sqrt8+\sqrt6)(\sqrt8-\sqrt6)=(\sqrt8)^2-(\sqrt6)^2=8-6=2[/tex]

Whatever you do to the denominator, you have to do to the numerator too. So

[tex]\dfrac{\sqrt2+\sqrt6}{\sqrt8+\sqrt6}=\dfrac{(\sqrt2+\sqrt6)(\sqrt8-\sqrt6)}{(\sqrt8+\sqrt6)(\sqrt8-\sqrt6)}=\dfrac{(\sqrt2+\sqrt6)(\sqrt8-\sqrt6)}2[/tex]

Expand the numerator:

[tex](\sqrt2+\sqrt6)(\sqrt8-\sqrt6)=\sqrt{2\cdot8}+\sqrt{6\cdot8}-\sqrt{2\cdot6}-(\sqrt6)^2[/tex]

[tex](\sqrt2+\sqrt6)(\sqrt8-\sqrt6)=\sqrt{16}+\sqrt{48}-\sqrt{12}-6[/tex]

[tex](\sqrt2+\sqrt6)(\sqrt8-\sqrt6)=4+\sqrt{48}-\sqrt{12}-6[/tex]

[tex](\sqrt2+\sqrt6)(\sqrt8-\sqrt6)=-2+\sqrt{12}(\sqrt4-1)[/tex]

[tex](\sqrt2+\sqrt6)(\sqrt8-\sqrt6)=-2+\sqrt{12}(2-1)[/tex]

[tex](\sqrt2+\sqrt6)(\sqrt8-\sqrt6}=-2-\sqrt{12}[/tex]

So we have

[tex]\dfrac{\sqrt2+\sqrt6}{\sqrt8+\sqrt6}=-\dfrac{2+\sqrt{12}}2[/tex]

But √12 = √(3•4) = 2√3, so

[tex]\dfrac{\sqrt2+\sqrt6}{\sqrt8+\sqrt6}=-\dfrac{2+2\sqrt3}2=\boxed{-1-\sqrt3}[/tex]