A student has to take 4 of the following 7 classes before they are allowed to graduate chemistry, biology, physics, economics, computer
science, theatre, and thetoric. How many ways can a student choose 4 classes? When looking at random selection what is the probability that a
student's choice will not have included physies?​

Answer:

X represents the total numbers on the spinner.

1 1

_ times _

X. X

Final answer:

To find the probability of spinning a 3 and then a 4, we calculate the individual probabilities of each event (1/6 each) and multiply them, resulting in a combined probability of 1/36.

Explanation:

The question asks about the probability of spinning a 3 followed by a 4 on a spinner. Assuming the spinner has equal sections numbered from 1 to 6, similar to a six-sided die, we can calculate the probability of each individual spin and then combine them to find the overall probability of the sequence happening.

The probability of spinning a 3 on the first spin is 1/6, and similarly, the probability of spinning a 4 on the subsequent spin is also 1/6. Since these two events are independent, we multiply these probabilities to find the combined probability of both events happening in sequence:

Probability of spinning a 3 then a 4 = Probability of 3 on first spin × Probability of 4 on second spin

= (1/6) × (1/6)

= 1/36

Therefore, the probability of spinning a 3 and then a 4 in two spins is 1/36.

Answer:

36π

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

BECAUSE U MULTIPLY THEN DIVIDE

so the right answer is 70.

Look at the attached picture ⤴

Hope it will help u

Answer:

B

Step-by-step explanation:

The range can be found by subtracting the lowest number from the highest number

First, arrange the numbers in order from least to greatest

350,280,340,290,320, 310,300

280, 290, 300, 310, 320, 340, 350

So, our lowest number is 280, and our highest is 350.

highest number - lowest number

Subtract 280 from 350

350-280

70

So, our range is 70, making B the correct answer

Answer:

The answer is 2√15 .

Step-by-step explanation:

Using Indices Law :

[tex] \sqrt{a} \times \sqrt{b} = \sqrt{ab} [/tex]

[tex] \sqrt{ - 6} \times \sqrt{ - 10} [/tex]

[tex] = \sqrt{ - 6 \times - 10} [/tex]

[tex] = \sqrt{60} [/tex]

Next, you have to find the common factors of 60 :

60 = 1×60

60 = 2×30

60 = 3×20

60 = 4×15

60 = 5×12

60 = 6×10

In order to simplify, we have to choose a perfect square from the factors above. In the factors above, 4 is a perfect square so that we can square root it :

[tex] \sqrt{60} [/tex]

[tex] = \sqrt{4 \times 15} [/tex]

[tex] = \sqrt{4} \times \sqrt{15} [/tex]

[tex] = 2 \times \sqrt{15} [/tex]

[tex] = 2 \sqrt{15} [/tex]

the answer is, 25+d=48

Answer:

The answer is c

Step-by-step explanation:

To prove that △VWZ ~ △YXZ by SAS theorem, we must prove that two of the sides for each triangle is congruent, and the angle inbetween the sides are congruent.

Answer: 2.5 hours

Step-by-step explanation:

130 / 52 = 2.5

A bus will take "2.5 hours" to travel.

Given that:

Speed of bus (s),

= 52 km/h

Distance (d),

= 130 km

As we know,

→ [tex]Speed = \frac{Distance}{Time}[/tex]

or,

→ [tex]Time = \frac{Distance }{Speed}[/tex]

By substituting the values, we get

            [tex]=\frac{130}{52}[/tex]

            [tex]=2.5 \ hours[/tex]

Learn more:

https://brainly.com/question/21805461

the answer is C, I think because parallel lines never touch

The required answer is two lines are parallel if and only if they lie in the same plane and do not intersect, and two lines are perpendicular if and only if they lie in the same plane and intersect at the right angles. Option   A is correct.

Given that,
An incomplete statement is given,
We have to complete the statement using the appropriate options that thinks fit to black space.

The line is a curve showing the shortest distance between 2 points.

Here,
Two lines are ___ if and only if they lie in the same plane and do not intersect.
The above statement is the definition of parallel lines, so the complete statement is,
Two lines are parallel if and only if they lie in the same plane and do not intersect.,

Two lines are __ if and only if they lie in the same plane and intersect at the right angles

The above statement is the definition of perpendicular,
So the complete statement is,
Two lines are perpendicular if and only if they lie in the same plane and intersect at the right angles.

Thus, the required correct option is option A, Parallel and perpendicular.

Learn more about lines here:

brainly.com/question/2696693

#SPJ2

Answer:

84 inches

Step-by-step explanation:

A regular hexagon has 6 sides where all 6 sides are congruent meaning that each side is 14 inches.

Hence:

14*6=84

In Conclusion:

The perimeter of the hexagon is 84 inches.

Hope this helps!

Answer:

84

Step-by-step explanation:

14+14+14+14+14+14=84

A hexagon has 6 equal sides and you add all of the sides to find perimeter.

1 gallon of tea is equal to 8 pints. Therefore, option D is the correct answer.

Everything around us has a measurement value, from the amount of sugar you put in a cake to the size of a football field. Each thing is measured differently based on its length, weight, volume, or duration. With these measurements, the idea of "Metric System" is introduced.

Given that, 1 gallon is 4 quarts, and 1 quart is 2 pints.

Metric Conversion refers to the conversion of the given units to desired units for any quantity to be measured.

Here, 1 gallon = 4 quarts

1 quarts = 2 pints

1 gallon = 4×2

= 8 pints

Therefore, option D is the correct answer.

Learn more about the Metric System here:

https://brainly.com/question/25966695.

#SPJ3

Answer:

Considerations:

[tex]$y=-(x) \left \{ {{\text{if } x<0\text{ then }y>0} \atop {{\text{if } x> 0\text{ then }y<0}} \right. $[/tex]

[tex]$y=x\left \{ {{\text{if } x<0\text{ then }y<0} \atop {{\text{if } x> 0\text{ then }y>0}} \right. $[/tex]

Also,

[tex]$-\frac{a}{b}=\frac{-a}{b}=\frac{a}{-b}, b\neq0 $[/tex]

A positive number divided by a positive number results in a positive quotient, and its opposite is always negative.

The fraction [tex]$\frac{5}{-12} $[/tex]  can be described as a positive number divided by a negative number, which always result in a negative quotient.

The fractions have same value, so Liam is correct.

Answer:

A and B.

Step-by-step explanation:

To find the area, you need to multiply the length and width.

A = L x W

5 x 4 = 20

10 x 2 = 20

Answer: $13 for the 9 mile ride.

The taxi ride that is m miles long would cost as follows: 4 + m

Step-by-step explanation:

The cost of Joseph's taxi ride is calculated by adding a flat fee of $4 to $1 for each mile driven. Thus, a 9-mile ride would cost $13. For a ride of m miles, the cost would be $4 plus $1 per mile.

The cost of a taxi ride can be determined using a function that considers two components: a flat fee, and a rate per mile. In Joseph's case, the online tax service charges a $4 flat fee for pickup, and $1 per each mile driven. Hence, the equation for the cost of a taxi ride (C) for Joseph is as follows: C= 4+1*m.

For a ride of 9 miles, we would substitute m with 9: C = 4+ 1*9, which simplifies to C = $13. Therefore, a 9-mile ride would cost $13.

For a taxi ride that is m miles long, the cost would be C = 4 + 1*m. The 4 represents the flat fee, and the 1*m represents the cost per mile that is driven multiplied by the number of miles in the ride. Therefore, a taxi ride that is m miles long would cost $4 plus $1 per mile.

https://brainly.com/question/34783456

#SPJ3

Answer:

39

Step-by-step explanation:

The efficiency of the car in unit miles per gallon will be 26.28.

To convert any unit into another is called a unit conversion.

In order to convert units, we need to care about their dimensions their dimension should not be changed.

Given that,

The car takes 9 liters per 100​ kilometers

9 liters ⇒ 100 km

Since 1 gal= 3.7854 L → 1 L = (1/3.7854) gal

9 L = (9/3.7854) gal

1 mile = 1.6 km → 1 km = (1/1.6) miles

100 km = (100/1.6) miles

So, (9/3.7854) gal ⇒ (100/1.6) miles

Efficiency = (100/1.6) ÷ (9/3.7854)

Efficiency = 26.28 miles/gal

Hence "The efficiency of the car in unit miles per gallon will be 26.28".

To learn more about unit conversion,

brainly.com/question/11543684

#SPJ2

Answer:

the correct answer is 6

Step-by-step explanation:

hope it helps !

To find 1/3 of the difference of 20 and 2, subtract 2 from 20 to get the difference, then divide the difference by 3.

To determine one-third of the difference between 20 and 2, we first find the difference itself, which is 20 - 2 = 18. Then, recognizing that one-third represents dividing by 3, we divide the difference, 18, by 3, resulting in 18 ÷ 3 = 6. This mathematical process illustrates the sequential steps taken to solve the problem. The method involves subtraction to identify the difference and subsequent division by 3 to find the desired fraction. This systematic approach ensures clarity in understanding the solution. Hence, one-third of the difference between 20 and 2 equals 6, demonstrating the application of basic arithmetic concepts in solving real-world problems and enhancing mathematical reasoning skills.

https://brainly.com/question/34363322

#SPJ11

Answer:

-20a

Step-by-step explanation:

-5a-6a+-9a

-11a+-9a

-20a

Answer:

no: 5-4+7x+1 = 7x+1

one: 5-4+7x+1 = 6x+2

infinitely many: 5-4+7x+1 = 7x+2

Answer:

i think it is c. good luck!!

Step-by-step explanation:

The value of x is 11.037

The correct option is (B)

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.

Using Trigonometry,

cos 25 = B/ H

cos 25 = 10 / x

0.906 = 10/ x

x= 10/ 0.906

x= 11.037

Hence, the value of x is 11.037.

Learn more about Trigonometry here:

https://brainly.com/question/26719838

#SPJ2

Answer:

2 answers 27 and 50 units

Step-by-step explanation:

Final answer:

To express [tex]8^{1/2[/tex]in simplest radical form, recognize that it's equivalent to the square root of 8, then simplify to 2√2 by breaking down 8 into prime factors and finding pairs of factors.

Explanation:

To express [tex]8^{1/2[/tex] in simplest radical form, we follow these steps:

Recognize that an exponent of 1/2 is equivalent to the square root.

Find the square root of 8, which can also be written as √8.

Since 8 is not a perfect square, we can simplify it by breaking it down into its prime factors: 8 = 2 x 2 x 2.

Group the factors into pairs to determine the square root: 8 has one pair of 2s.

This pair comes out of the radical as a single 2, leaving one 2 inside the radical: 2√2.

Therefore, 8^1/2 simplifies to 2√2, which is the simplest radical form.

Answer:

three B

Step-by-step explanation:

simple addition

Answer: which side is the length and which side is the height?

Answer:

5 feet

Step-by-step explanation:

5x5

thanks jimtompson5910 for helping me fix my mistake

Some number times itself is 25. The question is: which number?

That would be 5 since 5 times 5 = 25

You can also apply the square root to 25 to get 5, to avoid guessing and checking.

Answer:

Step-by-step explanation:

Answer:

Yes and Yes

Step-by-step explanation:

Yes, events A and B are independent events

Yes, P(A | B) = P(A).

Answer:

180 degrees.

Step-by-step explanation:

The interior angles in a triangle have a sum of 180 degrees. You can also prove it by the Sum of Interior Angles formula:

S= (n-2)·180.

n- the number of sides in the polygon

S= the total sum of interior angles.

Answer:

The sum of three interior angles always have to have the sum of 180 degrees. So with that being said, each of the angles have to be less than 180 degrees.

Brainliest is appreciated.

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer: -8/5

Step-by-step explanation:

Answer:

hope this helps!

Step-by-step explanation:

The inverse function of the given function will be f(x)⁻¹ = ( 10 ) / ( 9x - 99).

A function is defined as the expression that set up the relationship between the dependent variable and the independent variable. In an inverse function, the value of two variables x and y are interchanged, and then the value of y is given an inverse function.

Given function is f(x) = ( 10/9x) + 11. the inverse function will be calculated as below:-

y = 10/9x+11

x = ( 10 / 9y ) + 11

x - 11 = ( 10 / 9y )

9y / 10 = ( 1 / ( x - 11 )

9y = 10 / ( x - 11 )

y = ( 10 ) / ( 9x - 99 )

Therefore, the inverse function of the given function will be f(x)⁻¹ = ( 10 ) / ( 9x - 99).

To know more about an inverse function follow

brainly.com/question/3831584

#SPJ5

Answer:

6 * x^6

Step-by-step explanation:

We have  (12x^9) / (2x^3)

(12x^9) / (2x^3)  =  6 * (x^9/x^3)    Divide the constants first

(12x^9) / (2x^3)  = 6 * x^ (9-3)

(12x^9) / (2x^3)  = 6 * x^6