PLZ HELP!!!! STUCK!!!!!
There are 15 tiles in a bag. Of these, 7 are purple, 5 are black and the rest are white.
Event A = drawing a white tile on the first draw
Event B = drawing a purple tile on the second draw
If two tiles are drawn from the bag one after the other and not replaced, what is P(B|A) expressed in simplest form?

A. 1/5
B. 1/3
C. 7/15
D. 1/2

Answer:

DE=4

Step-by-step explanation:

got it right on edg

The length of DE is given as: 3 Units. (Option B)
A line that joins two points on a curve is called a Secant Line.

Two secant theorem states that if two secant lines are drawn from a point outside a circle a relationship is formed between the line segments.

Based on the Secant Theorem, from the figure, we know that:

AX * BX = EX * DX

Assuming that the length of DE equals X,:

AX * BX = EX * DX

Equals

(7+2) X (2) = (x + 3) (3)

To solve for x we expand the brackets to state:

9 * 2= 3x + 9

3x = 18-9

3x= 9

x = 9/3

X which is same as DE = 3 Units.

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There is no curve that describes the level curve of value c for the given surface, as the condition c < 0 makes it impossible to find a real solution.

In two- or three-dimensional space, a curve is a mathematical object that symbolises a continuous, smooth path. Curves can be derived from geometric operations, parametric equations, or mathematical equations. They are commonly used to simulate real-world processes in physics, engineering, mathematics, and many other disciplines.

To find the level curve of value c for the given surface \(z = f(x, y) = (x^2/4) + (y^2/25) = c\), where c < 0, follow these steps:

Step 1: Write down the equation of the surface.
\(z = f(x, y) = (x^2/4) + (y^2/25)\)

Step 2: Replace z with the constant c.
\(c = (x^2/4) + (y^2/25)\)

Step 3: Rearrange the equation to isolate \(y^2\).
\(y^2 = 25(c - (x^2/4))\)

However, note that we're given that c < 0. This means that the value inside the parentheses (c - (\(x^2/4\))) must also be negative. Since y^2 can't be negative, there's no real solution for this equation.

In conclusion, there is no curve that describes the level curve of value c for the given surface, as the condition c < 0 makes it impossible to find a real solution.

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Answer:

2400

which is not having any remainder as 2400÷60=40

Step-by-step explanation:

Answer:

$4.07 per bag

Step-by-step explanation:

Answer:

$4.07 per bag

Step-by-step explanation:

Trust me on this one. I just got a 100

Answer:

¤ A. Yes, because 2 + 3 = 5

Step-by-step explanation:

Good Luck

Answer:

the answer is D

Step-by-step explanation:

2^2+3^2=4+9

=13

5^2=25

Therefore 2^2+3^2≠5^2

BTW I'm not sure if 3^3 was supposed to be 3^2 but D is the only answer that fits most

Answer:

first relation is correct

So option A is correct.

The center of mass of the portion of the disk in the first quadrant, x^2+y^2=36, with mass density ρ(x,y) is 10yx/√(x^2+y^2), is  (14.4, 2.9).

To find the center of mass (CM) of the given portion of the disk, we need to first find the mass and the coordinates of the centroid.

Firstly, Find the mass of the portion of the disk. The mass of the portion of the disk can be found using double integrals

m = ∬R ρ(x,y) dA

where R is the region in the first quadrant defined by

x^2 + y^2 <= 36 and x >= 0, and ρ(x,y) = 10y√(x^2+y^2).

Using polar coordinates,

m =\(\int\limits^0_\(pi /2\)  \(\int\limits^0_6\) 10r^2sinθ dr dθ

 = 450π

Therefore, the mass of the portion of the disk is 450π.

Now, Find the coordinates of the centroid. The coordinates of the centroid can be found using the following formulas

x¯ = (1/m) ∬R x ρ(x,y) dA

y¯ = (1/m) ∬R y ρ(x,y) dA

Using polar coordinates again to evaluate the integrals

x¯ = (1/m) \(\int\limits^0_\(pi /2\) \(\int\limits^0_6\) 10r^3sin^2θ dr dθ

  = 72/5

y¯ = (1/m)\(\int\limits^0_\(pi /2\) \(\int\limits^0_6\) 10r^3sinθcosθ dr dθ

  = 144/5π

Therefore, the coordinates of the centroid are (x¯, y¯) = (72/5, 144/5π).

Hence, the center of mass of the portion of the disk in the first quadrant is located at (x¯, y¯) = (14.4, 2.9).

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Answer:B

Step-by-step explanation:

Answer:

Minh's grade has less boys than Ella's

Answer:

The volume of this rectangular prism is 96 cubic centimeters

Step-by-step explanation:

The volume of a rectangular prism = Length × width × height

= 8 × 6 × 2

= 96 cubic centimeters

The absolute value equation representing all numbers x whose distance from 8 is 6 units will be x = {2, 14).

Based on the information given, it should be noted that the distance of x, positive or negative from 8 can be expressed as |x - 8|.

Since the distance is equal to 6, our equation will be:

|x - 8| = 6

x = 8 + 6 = 14

or

- |x - 8| = 6

-x + 8 = 6

-x = 6 - 8

-x = -2

x = 2

Therefore, the appropriate equation is x = {2, 14).

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Answer:

what are the answer choices

Step-by-step explanation:

Answer:

1. acute angle (less than <90)

2. right angle (approximately <90)

3. obtuse angle (more than <90)

4. acute angle (less than <90)

The letters can be added together if they have similar variables.

B and C are like terms. Option B shows the like terms of letters.

A mathematical expression consisting of two terms connected by a plus sign or minus sign is called the binomial expression.

The attachment shows the table of letters and variables.

To multiply binomials, a form of the distributive property is used.

The table has been complete with the final values of letters which are given below.

\(A= (-2x) \times 4x\)

\(A = -8x^2\)

\(B = 3 \times 4x\)

\(B = 12 x\)

\(C = (-2x)\times 1\)

\(C = -2x\)

\(D = 3\times 1\)

\(D = 3\)

From the final values of letters, B and C are the only like terms, they can be added together since they have similar variables.

Hence we can conclude that B and C are like terms. Option B shows the like terms of letters.

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Answer:B

Step-by-step explanation:

took the test

Step-by-step explanation:

a11 = 4 × a2

a + 10d = 4 × (a + d)

a + 10d - 4d = 4a

a + 6d = 4a

6d = 4a - a

6d = 3a

(6/3)d = a

2d = a ----- eq. 1

now, sum of 7 terms = s7 = 175

7/2 {2a+6d} = 175

7/2 { (2 × 2d ) + 6d} = 175

7 ( 4d + 6d ) = 175 × 2

7 ( 10d ) = 350

70d = 350

d = 350/70

d = 5

Now from eq. 1,

2d = a

2(5) = a

a = 10, d = 5

THANK YOU........

Answer:

C

Step-by-step explanation:

the solution is at the point of intersection of the 2 lines.

the lines intersect at (1, 4 ) , then

solution to the system of equations is (1, 4 )

Answer:14 in 2 days

Step-by-step explanation:

Answer:

144 tiles

Step-by-step explanation:

The room is \(16cm^{2}\) because 4 by 4 is 4 x 4 = 16.

Each tile is \(\frac{1}{9}\) because \(\frac{1}{3}\) x \(\frac{1}{3}\) = \(\frac{1}{9}\).

So we must do 16 ÷ \(\frac{1}{9}\) = 144

So 144 tiles are needed.

the solution to the pair of equations is u = (1,1) and v = (1,0).

u + 3v = (2,1)

3u + v = (3,2)

u = (1,1) and v = (1,0)

The first equation can be written as:

u + 3v = (2,1)

We can rewrite this equation as:

u + 3(1,0) = (2,1)

By substituting the values of i and j, we can solve for u:

u + (3,0) = (2,1)

u = (2-3,1) = (-1,1)

Now, we can substitute the value of u in the second equation:

(1,1) + v = (3,2)

By subtracting (11) on both sides, we can solve for v:

v = (3-1,2-1) = (2,1)

Therefore, the solution to the pair of equations is u = (1,1) and v = (1,0).

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Answer: 143°

Step-by-step explanation:

140+146=286

360-286=74

74/2=37

vertical angles are equal so using supplementary angles or vertical angle rule I can prove the angle labeled x is 143°

The equation will be 5r + 1.25b = 20. This represents the beef and radishes to buy.

An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario. It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.

Radishes costs $5 per pound, and beet cost $1.25 per pound. Sasha has $20 to spend on these items to make a large salad for a potluck dinner.

Let b = number of pounds of beets Sasha buys.

Let r = number of pounds of radishes she buys when she spends all her money on this salad.

The equation will be 5r + 1.25b = 20

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Complete question

Radishes costs $5 per pound, and beet cost $1.25 per pound. Sasha has $20 to spend on these items to make a large salad for a potluck dinner. Let b be the number of pounds of beets Sasha buys and r be the number of pounds of radishes she buys when she spends all her money on this salad. Illustrate the equation

Answer:

7(4+x)

when x = 5

7(4+5)

28+35 = 63

Answer:

24

Step-by-step explanation:

20 divided by 5 = 4

4 +20 = 24

The divers in order from least to greatest based on the number of liters left in their oxygen tank will be Alexis, Dante, and Sofia. The correct answer is B.

In mathematics, placing numbers in ascending order refers to doing so from least to largest from left to right. When numbers are arranged in ascending order, they are done so from least to largest.

Given that three divers went scuba diving in the ocean for a couple of hours. The table for the oxygen requirement is given below:-

Diver                         Oxygen (liters)

Alexis                    Seventy nine over eighth

Dante                                9.3

Sofia                      Nine and eight over fifteenth

The Numbers are:-

Alexis  ( Seventy nine over eighth)  = 79 / 9 = 8.78

Dante                                                 = 9.3

Sofia   ( Nine and eight over fifteenth ) = 9(9/15} = 9.6

The arrangement from least to highest will be Alexis, Dante, and Sofia.

The correct options are given below:-

Sofia, Dante, Alexis

Alexis, Dante, and Sofia.

Dante, Alexis, Sofia

Dante, Sofia, Alexis

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Answer:

Dante, Alexis and Sofia

Step-by-step explanation:

please tell me if I'm wrong but I'm positive its Dante, Alexis and Sofia

Answer:

b≥ - 8/3

Step-by-step explanation:

-3b-5≥-6b - 13.

Add 6b to each side

-3b+6b-5≥-6b+6b - 13

3b-5≥ - 13

Add 5 to each side

3b-5+5≥ - 13+5

3b≥ - 8

Divide by 3

3b/3≥ - 8/3

b≥ - 8/3

Answer: 3/4

Step-by-step explanation:

Slope formula is y2-y1 / x2-x1 or in this case 7-4 / 1--3 which equals = 3/4

Answer:

m=3/4

Step-by-step explanation:

The Probability of red light is 0.3

P(red) = 0.3

The probability that out of the next eight eastbound cars that arrive randomly at the light, exactly three will be stopped by a red light be 0.25.

P(exactly three get stopped by red light)=0.25

The correct option is (d) P(red)=.3,P(exactly 3 get stopped)=.25

A binomial distribution can be thought of as simply the probability of a SUCCESS or FAILURE outcome in an experiment or survey that is repeated multiple times.

The occurrence,

p= probability of a red light

 =\(\frac{15}{15+5+30}\)

 = \(\frac{15}{50}\)

 = 0.3

Hence, Probability of getting red light be,

P (red)= 0.3

Now, the Binomial distribution formula,

Probability=( \(_r^nC\))\(\;p^{r} \;q^{n-r}\)

where, r = number of times for a specific outcome within n trials

\(_r^nC\)   = number of combinations

p = probability of success on a single trial

q = probability of failure on a single trial

n = number of trial

According to question,

          = 1- 0.3

          = 0.7

Now using the formula, ( \(_r^nC\))\(\;p^{r} \;q^{n-r}\)

P( exactly 3  get stopped) = ( \(_3^8C\))\(\;(0.3)^{3} \;(0.7)^{8-3}\)

                                            = \(\frac{8!}{3!(8-3)!}\) \((0.027) \; (0.7)^{5}\)

                                           =  \(\frac{8!}{3!(5)!}\)\((0.027) \; (0.16807)\)

                                           = \(\frac{8 * 7 * 6 }{3 * 2}\) x 0.027 x 0.16807

                                           = 56 x 0.00453789

                                           = 0.25412184

                                          ≈ 0.25

Hence, Probability of next eight eastbound so that exactly three will stopped by a red light be 0.25.

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To prove angle abd and angle cbd are congruent using a proof by contradiction, the assumption statement that starts the proof is Angle abd and angle cbd are not congruent.

Proof by contradiction is a technique used in logic and mathematics to verify the truth or validity of a claim by demonstrating how presuming the proposition to be incorrect results in a contradiction.

A proof by contradiction first starts with the negation, or opposite of the hypothesis.

In context of the problem, the proof by contradiction will start by the opposite . Since we are to prove that angle abd and angle cbd are congruent, the opposite is Angle abd and angle cbd are not congruent.

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