1/22 + 1/19 + 1/40
will give brainliest if correct

Answer:

1/14

Step-by-step explanation:

The sectors labeled are B, Y, G, C, P, F, O, V, M, A, D, E, H, and R.

Total number of sectors = 14.

When Victoria spins the spinner 18 times, and it stops at the letter B 10 times.

When Victoria spins the spinner  the theoretical probability that this time it will stop at the letter B = Favourable  outcomes ÷total number of outcomes.

Favourable outcomes =1 and Total number of outcomes = 14.

Hence Theoretical Probability = 1 over 14.

Answer:

that child is correct so give them brainylest.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

y = - 0.0635x + 69.050 ;

For every unit increase in commute time, well being falls by 0.0635 on average ;

67.1

Step-by-step explanation:

Given :

Commute Time (minutes), x : 5 20 25 35 60 72 105

Well-Being Index Score, y : 69.1 67.8 67.1 66.6 65.0 65.0 62.3

The regression model obtained is :

y = - 0.0635x + 69.050

Where ;

y = Well being Index Score

x = Commute time

Slope = - 0.06352

Intercept = 69.0504

2.)

The slope value, - 0.0635 gives the rate of change in y per unit increase in x.

3.)

Well being Index for a person with commute time of 30 minutes

x = 30

y = - 0.06352(30) + 69.0504

y = 67.1448

y = 67.1 (1 decimal place)

Answer:

Step-by-step explanation:

thats it

Answer:

[tex]40[/tex]

hope this helps you.

Can I have the brainliest please?

Answer:

6 m

Step-by-step explanation:

27m^3 /8m^3= 20 m / X

8m^3 × 20 m = 27m^3 × X

160 /27 = X

X = 5.9

= 6

Answer:

12,664

Step-by-step explanation:

Answer:

HMMM. LET ME THINK everything will be okay

At least you ate a nice healthy meal.

Also, if you can find some fresh pants or you can go to the bathroom and grab paper and wet it and it may take out the stain

REMEMBER EVERYONE HAS BAD DAY INCLUDING MYSELF

HAVE A NICE DAY :)

Step-by-step explanation:

================================================

Explanation:

M = 90 and the side opposite this is LK = 5 since "LK" doesn't have "M" anywhere in the letter sequence. The side LK is the hypotenuse. The hypotenuse is always the longest side and always opposite the right angle.

The reference angle is angle K. Opposite this angle is ML = 4. Note how ML has no mention of K. The adjacent side to angle K is KM = 3 as it's the only thing left and we have a mention of K now.

The cosine ratio is therefore...

cos(angle) = adjacent/hypotenuse

cos(K) = KM/LK

cos(K) = 3/5

Answer:

Step-by-step explanation:

take 18 degree as reference angle

using cos rule

cos 18=adjacent/hypotenuse

0.95=x/27

0.95*27=x

25.65=x

25.7=x

Answer:

image is a little choppy because i ran out of space, but the answer is 179,99999u²

we can round it up to 180u²

hope this helps<<3

Answer:

Step-by-step explanation:

A. Distance(16)= 30

Answer:

Step-by-step explanation:

V = 3.14 × r² × h

r= 20/2 =10 cm

h = 11 cm

V = 3.14 x10² x 11 = 3454 cm³

Answer:

108 m^3

Step-by-step explanation:

The volume of a rectangular prism is the product of all its sides. 12 * 6 * 1.5 = 108

Answer:

First answer: 5x+8x+9+3+4

Second answer: 13x+16

9514 1404 393

Answer:

  1. DE=104°, FE=76°, DEF=180°, CFD=284°, DFE=256°

  6. x=6

  7. DE=167°, EF=13°, DFG=347°

Step-by-step explanation:

To solve these problems, you make use of the relationships between arcs and angles in a circle. Any resulting equations are solved in the usual way.

__

1. A central angle of 104° is shown. The two diameters divide the circle into 4 arcs. Two will have measures of 104°, the other two will be supplementary to those, so will have measures of 76°. The blanks can be filled by adding the arcs necessary to achieve the arc measure asked for.

__

6. Angles EFC and BFA are vertical angles, so have the same measure. Angle EFC is shown as being the sum of 90° and 27°. This means ...

  90+27 = 21x -9 . . . . . . two-step linear equation in x

__

7. The two marked arcs add to half a circle:

  (x -3)° +(12x -25)° = 180° . . . . . . . two-step linear equation in x

Once you have the value of x, you need to substitute it into the formulas for each of the arc measures, then make use of any necessary sum-of-arc relations to find the necessary arc lengths.

Answer:

Step-by-step explanation:

ask cymath it will help you with any mathmatical problem

Answer:110 degrees

Step-by-step explanation:

Answer:

10 + 5

Step-by-step explanation:

I actually don't know the explanation... sorry about that!

Answer:

x = {-3, 4}

Step-by-step explanation:

(3x + 9)(x − 4) = 0

Solution 1

3x + 9 = 0

3x = -9

x = -3

Solution 2

x - 4 = 0

x = 4

x = {-3, 4}

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

if by solve you meant expand

(3x + 9)(x − 4) = 0

3x² - 12x + 9x - 36 = 0

3x² - 3x - 36 = 0

Answer:

x = 4

x = - 3

Step-by-step explanation:

Method 1

Quadratic Formula

(3x + 9)(x - 4) = 0

3x(x - 4) + 9(x - 4) = 0

3x² - 12x + 9(x - 4) = 0

3x² - 12x + 9x - 36 = 0

3x² - 3x - 36 = 0

3(x² - x - 12) = 0

[tex]\frac{3(x^{2} - x - 12)}{3} = \frac{0}{3}[/tex]

[tex]x={\frac{-b±\sqrt{b^{2}-4ac } }{2a} }[/tex]

Ignore the A after the -b, wouldn't let me type it correctly. Ignore the A for the rest of the explanation as well.

x² - x - 12 = 0

a = 1

b = - 1

c = - 12

[tex]x={\frac{-(-1)±\sqrt{(-1)^{2}-4(1(-12)) } }{2(1)} }[/tex]

[tex]x={\frac{-(-1)±\sqrt{1-4(1(-12)) } }{2(1)} }[/tex]

[tex]x={\frac{-(-1)±\sqrt{1+48 } }{2(1)} }[/tex]

[tex]x={\frac{-(-1)±\sqrt{49 } }{2(1)} }[/tex]

[tex]x={\frac{1±7 }{2(1)} }[/tex]

[tex]x={\frac{1±7 }{2} }[/tex]

Separate into two equations.

One with addition and the other with subtraction.

[tex]x={\frac{1+7 }{2} }[/tex]

[tex]x={\frac{1-7 }{2} }[/tex]

x = 4

x = - 3

Method 2

Factors

(3x + 9)(x - 4) = 0

3x(x - 4) + 9(x - 4) = 0

3x² - 12x + 9(x - 4) = 0

3x² - 12x + 9x - 36 = 0

3x² - 3x - 36 = 0

3(x² - x - 12) = 0

3(x² + 3x - 4x - 12) = 0

3(x² + 3x + (- 4x - 12)) = 0

3(x(x + 3) - 4(x + 3)) = 0

3(x - 4)(x + 3) = 0

Create separate equations

x - 4 = 0

x + 3 = 0

x - 4 = 0 ⇒ x - 4 + 4 = 0 + 4 ⇒ x = 4

x + 3 = 0 ⇒ x + 3 - 3 = 0 - 3 ⇒ x = - 3

x = 4

x = - 3

Answer:

The probability that none of the 10 calls result in a reservation is 0.60%.  In turn, the probability that at least one call results in a reservation being made is 99.40%.

Step-by-step explanation:

Since approximately 40% of the calls to an airline reservation phone line result in a reservation being made, supposing an operator handles 10 calls, to determine what is the probability that none of the 10 calls result in a reservation, and what is the probability that at least one call results in a reservation being made, the following calculations must be performed:

0.6 ^ 10 = X

0.006 = X

0.006 x 100 = 0.60%

Therefore, the probability that none of the 10 calls result in a reservation is 0.60%.

100 - 0.60 = 99.40

In turn, the probability that at least one call results in a reservation being made is 99.40%.

Answer:

o

Step-by-step explanation:

-4h=32

h=32/-4

h=-8

Answer:

h=-8

Step-by-step explanation:

-4h=32

Isolate h by dividing -4 on both sides

h=32/-4

Simplify

h=-8

If this helps please mark as brainliest

Answer:

[tex] \cos( \theta) = \frac{ - \sqrt{} 7}{5} \\ \theta = \cos {}^{ - 1} ( \frac{ \sqrt{} - 7}{5} ) \\ \theta = 58.1 \degree, \: 121.9 \degree, \: 238.1 \degree[/tex]

Answer:

[tex]Width = 14feet[/tex]

Step-by-step explanation:

Given

[tex]Area = 154[/tex]

[tex]Width = 11[/tex]

Required

The length

Area is calculated as:

[tex]Area = Length * Width[/tex]

Make Width, the subject

[tex]Width = \frac{Area}{Length}[/tex]

So, we have:

[tex]Width = \frac{154}{11}[/tex]

[tex]Width = 14feet[/tex]

Answer:

16

Step-by-step explanation:

12-(-4)=12+4=16

Answer:

16

Step-by-step explanation:

12 - (-4)

when you subtract a negative, you add.

12 + 4 = 16

Answer:

(7,-19)

Step-by-step explanation:

(x,y) --> (x - 11, y - 9)

Substitute x=18 and y = -10 into the translation

(x,y) --> (18 - 11, -10 - 9)  

             (7,-19)

============================================================

Explanations:

Problem 10

The order of the toppings doesn't matter. All that matter is the group itself. We'll use the combination formula nCr = (n!)/(r!*(n-r)!) where n = 12 and r = 3 in this case.

So,

nCr = (n!)/(r!*(n-r)!)

12C3 = (12!)/(3!*(12-3)!)

12C3 = (12!)/(3!*9!)

12C3 = (12*11*10*9!)/(3!*9!)

12C3 = (12*11*10)/(3*2*1)

12C3 = 1320/6

12C3 = 220

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

Problem 11

Like with problem 10, the order doesn't matter. This is assuming that each member on any given team has the same rank as any other member.

If you used the nCr combination formula, with n = 9 and r = 5, you should get the answer 126

Here's another way to get that answer.

There are 9*8*7*6*5 = 15120 different permutations. If order mattered, then we'd go for this value instead of 126

Within any group of five people, there are 5! = 120 different ways to arrange them. So we must divide that 15120 figure by 120 to get the correct value of 126 combinations

15120/120 = 126

Note the connection between nCr and nPr, namely,

nCr = (nPr)/(r!)

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

Problem 12

Now this is where order matters, because the positions in basketball are different (eg: a point guard differs from a center).

We have 13 choices for the first position, 12 for the second, and so on until we reach 13-r+1 = 13-5+1 = 9 as the number of choices for that last slot.

So we'll have 13*12*11*10*9 = 154,440 different permutations

Now if the condition that "each player can play any position" isn't the case, then the answer would very likely be different. This is because for the center position, for instance, we wouldn't have 13 choices but rather however many choices we have at center. To make the problem simpler however, your teacher is stating that any player can play at any slot. Realistically, the answer would be far less than 154,440

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

Problem 13

We have 6 applications for the 2 math positions. Order doesn't matter. That means we'll have 6C2 = 15 different ways to pick the math people. Use the nCr formula mentioned in problem 10. Since we'll use this value later, let's make x = 15.

There are 2 people applying for the chemistry teaching position, meaning there are 2 ways to fill this slot. We could compute 2C1 = 2, but that's a bit overkill in my opinion. Let y = 2 so we can use it later.

Similarly, there are 10 applicants for the Spanish teacher position, leading to 10 ways to get this position filled. You could compute 10C1 = 10 if you wanted to. Let z = 10 so we can use it later.

Once we figured out those x,y,z values, we multiply them together to get our final answer: x*y*z = 15*2*10 = 30*10 = 300

There are 300 different ways to select 2 math teachers, a chemistry teacher, and a Spanish teacher from a pool of 6 math applicants, 2 chemistry applicants, and 10 Spanish teacher applicants.

Answer:

Hello! answer: x = 37

Step-by-step explanation:

Triangles add up to 180 degrees 45 + 98 = 143

180 - 143 = 37 therefore the missing angle is 37 HOPE THAT HELPS!