I need help plz and fast

The value of angle x and angle y is determined as 78⁰ and 115⁰ respectively.

The value of angle x and angle y is calculated by applying principle of angles formed by parallel lines as follows;

The value of angle adjacent x = 102⁰

The value of angle x   is calculated as;

x = 180 - 102 ( sum of angles on a straight line)

x = 78⁰

The value of angle y is calculated as follows;

y = 115⁰ (corresponding angles are equal)

Thus, the value of angle x and angle y is determined as 78⁰ and 115⁰ respectively.

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Answer:

\( \frac{x - 9}{2} = 5 \\ x - 9 = 5 \times 2 \\ x = 10 + 9 \\ x = 19\)

Answer:

b=76

Step-by-step explanation:

Answer:

Step-by-step explanation:

the sample standard deviation for the given sample data is approximately 4.98.

Answer:

To find the total distance, we need to add up the distance the student ran in the first 5 days and the distance the student ran in the next 5 days.

Distance for the first 5 days = 3 1/2 miles/day × 5 days = 17.5 miles

Distance for the next 5 days = 4 1/4 miles/day × 5 days = 21.25 miles

Total distance = Distance for the first 5 days + Distance for the next 5 days

Total distance = 17.5 miles + 21.25 miles

Total distance = 38.75 miles

Therefore, the student ran a total of 38.75 miles during these 10 days.

Answer:0.27881423829

Step-by-step explanation:

Answer:

0.278814

Step-by-step explanation:

12.18÷43.685≈0.278814

The long division is in the picture

a) The current that flows between the two spherical shells is proportional to the potential difference V and inversely proportional to the resistance between them.

b) The resistance between the shells is directly proportional to the length of the conducting material between them (b-a) and inversely proportional to the cross-sectional area of the inner shell (4πa²).

Electrical resistance is a fundamental property of materials that refers to their ability to resist the flow of electric current. In this scenario, we have two concentric metal spherical shells separated by a weakly conducting material, and we want to determine the current that flows between them when they are maintained at a potential difference V, as well as the resistance between them.

To solve this problem, we can use Ohm's Law, which states that the current through a conductor between two points is directly proportional to the potential difference across the two points, and inversely proportional to the resistance between them. Mathematically, we can express this as:

I = V / R

where I is the current, V is the potential difference, and R is the resistance.

For part (a) of the problem, we need to determine the current that flows between the two spherical shells. Since the shells are maintained at a potential difference V, we can assume that the potential at the inner shell is V and the potential at the outer shell is 0 (since the potential difference is V). Therefore, the current that flows between the shells can be determined by calculating the resistance between them.

To calculate the resistance, we can use the formula for the resistance of a cylindrical conductor:

R = (ρ x L) / A

where ρ is the resistivity of the material, L is the length of the conductor, and A is the cross-sectional area of the conductor.

Therefore, we can write:

R = (ρ * (b-a)) / (4πa²)

Substituting this expression for R into Ohm's Law, we get:

I = V / ((ρ * (b-a)) / (4πa^2))

Simplifying this expression, we get:

I = (4πa²V) / (ρ * (b-a))

For part (b) of the problem, we need to determine the resistance between the shells. As we saw above, the resistance is given by:

R = (ρ * (b-a)) / (4πa²)

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Complete Question:

Two concentric metal spherical shells, of radius a and b, respectively, are separated by weakly conducting material of conductivity o (Fig. 7.4a).

(a) If they are maintained at a potential difference V, what current flows from one to the other?

(b) What is the resistance between the shells?

The LCM of A = 3² × 5⁴ × 7 and B = 3⁴ × 5³ × 7 × 11 is 3898125 using Prime factorization.

Given are two numbers which are showed in the prime factorized form.

A = 3² × 5⁴ × 7

B = 3⁴ × 5³ × 7 × 11

Prime factorization is the factorization of a number in terms of prime numbers.

In order to find the LCM of these two numbers, we have to first match the common primes and write down vertically when possible and then bring down the primes in each column.

A = 3² ×         5³ × 5 × 7

B = 3² × 3² × 5³ ×       7 × 11

Bring down the primes in each column.

LCM = 3² × 3² × 5³ × 5 × 7 × 11

        = 3898125

Hence the LCM is 3898125.

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The sequence is decreasing as n increases and sequence converges to the value 0.

The given sequence is defined as aₙ = 1 / (7n + 3).

To determine if the sequence converges or diverges, we need to analyze its behavior as n approaches infinity.

As n increases, the denominator 7n + 3 also increases which means that the values of aₙ will get smaller and smaller, approaching zero as n becomes larger.

The sequence converges to the value 0.

The sequence is decreasing as n increases.

The sequence converges to the value 0.

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Answer:

the answer to this is

27

Using proportions, it is found that they must win 19 of their next 30 games.

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

We want a win-to-loss proportion of 2:1, which is equivalent to a win-to-total proportion of 2:3. We have that:

Hence:

\(\frac{5 + x}{36} = \frac{2}{3}\)

3(5 + x) = 72

15 + 3x = 72

3x = 57

x = 19.

The Rangers must win 19 of their next 30 games.

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The equation with an infinite number of solutions is 12x-x+8+3x=14x+8.

An equation is a formula in mathematics that expresses the equality of two expressions by connecting them with the equals sign =. In its most basic form, an equation is a mathematical statement that shows that two mathematical expressions are equal. 3x + 5 = 14, for example, is an equation in which 3x + 5 and 14 are two expressions separated by a 'equal' sign. A mathematical equation that depicts the relationship between two expressions on opposite sides of the sign. It mostly consists of one variable and one equal to symbol. 2x - 4 = 2 is an example.

Here,

12x-x+8+3x=14x+8

The equation so that it has infinitely many solution is 12x-x+8+3x=14x+8.

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Step-by-step explanation:

The expressions are not properly written

Given

RS = 4x – 9

ST = 19

RT = 8x – 14

Based on the given parameters, the addition postulate below is true

RS+ST = RT

Substitute

4x-9+19 = 8x-14

collect like terms

4x-8x = -14-19+9

-4x = -33+9

-4x = -24

x = -24/-4

x = 6

Get RS:

RS = 4x-9

RS = 4(6)- 9

RS = 24-9

RS = 15

Get RT:

RT = 8x - 14

RT = 8(6)-14

RT = 48-14

RT = 34

The value of the coin in 2019 would be approximately $132.

To calculate the value of the coin in 2019, we need to consider the annual increase rate of 16.9% from 2010 to 2019. We can use the compound interest formula to find the final value.

Starting with the initial value of $40 in 2010, we can calculate the value in 2019 as follows:

Value in 2019 = Initial value * (1 + Rate)^n

where Rate is the annual increase rate and n is the number of years between 2010 and 2019.

Plugging in the values:

Value in 2019 = $40 * (1 + 0.169)^9

Value in 2019 ≈ $40 * 2.996

Value in 2019 ≈ $119.84

Rounding the value to the nearest dollar, we get approximately $120. Therefore, the value of the coin in 2019 would be approximately $120.

However, please note that the exact value may vary depending on the specific compounding method and rounding conventions used.

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Answer:

- 6 x + 10

Step-by-step explanation:

2 ( - 3 x + 5 )

multiply 2 seperately into all the things inside

( - 6 x + 10 )

Answer:

-6x + 10

Step-by-step explanation:

\(2\left(-3x+5\right)\)

Distribute

\(2\left(-3x+5\right)=2\left(-3x\right)+2\cdot \:5\\2\left(-3x\right)+2\cdot \:5\)

Multiply

\(2(-3x)\\= 2 \times (-3x)\\= -6x\)

\(2 \cdot 5 = 10\)

Simplify

\(= 6x + 10\)

Answer: A. x < 2

Step-by-step explanation:

         We will isolate the variable with inverse operations.

Given:

  3x – 2 < 4

Add 2 to both sides of the equation:

  3x < 6

Divide both sides of the equation by 3:

  x < 2

        A. x < 2

At least 75% of the data might very well fall between $3.25 and $3.81. According to Chebyshev's theorem, at least 75% of the value systems in a distribution are well within 2 the mean standard deviation.

A delivery has at least 89% of its values inside of three of the mean's standard deviation.

We have the following in this problem:

Mean = $3.53

$0.14 is the standard deviation.

Using Chebyshev's Theorem, determine the range that contains least 75% of the information will live.

2 standard deviations from the mean.

So 3.53 - 2*0.14 = $3.25 becomes 3.53 + 2*0.14 = $3.81.

At least 75% of the data might very well fall between $3.25 and $3.81.

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Answer:

3m+21

Step-by-step explanation:

Lets start with the original equation: 3(m+7)

distribution is basically a way to make sure you multiply everything in the parenthesis by the number outside it.

3*m= 3m

3*7= 21

So your final answer would be 3m+21

Hope this helps :)

Answer: banana- 88

Orange-55

Apple-143

Step-by-step explanation:

220 divided by 5, times 2,

that’s the banana trees

220 divided by 4, that’s the oranges

Add the answers together

Take the answer away from 220 that’s the apples

Answer: 21.15 ft²

Step-by-step explanation:

We can use the formula for the area of a triangle:

(b×h)/2

In this case, the base is 9 and the height is 4.7.

So, we substitute the variables with the numbers in this problem.

(9 × 4.7)/2

9 × 4.7 = 42.3

42.3/2 = 21.15

So, our final answer is 21.15 ft²

The function that models the growth of this account is \(P(t) = 500 e^{0.025t\)

From the question, we have the following parameters that can be used in our computation:

Principal, P = 500

Rate of interest, r = 2.5%

The function that models the growth of this account is represented as

\(P(t) = P_oe^{rt\)

substitute the known values in the above equation, so, we have the following representation

\(P(t) = 500 e^{0.025t\)

Hence, the function that models the growth of this account is \(P(t) = 500 e^{0.025t\)

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Answer:

0.8x - y = -1.8, x-int = 2.25, y-int = -1.8

Step-by-step explanation:

(-4, -5) and (1, -1)

slope = [(-5) - (-1)] / [(-4) - 1] = -4 / -5 = 4/5 = 0.8

Let y = 0.8 x + b

Sub (-4, -5) into it

-5 = 0.8 * (-4) + b = -3.2 + b

b = -5 + 3.2 = -1.8

The equation is y = 0.8x - 1.8

standard form: 0.8x - y = -1.8

let y = 0, 0.8x - 1.8 = 0

x = 1.8/0.8 = 2.25   (x-intercept)

let x = 0, y = -1.8    (y-intercept)

Answer:

a) Is it possible for Fred to accomplish this? Yes

b) If it is possible, what score does he need in his next game? 293

Step-by-step explanation:

Step 1

Let us represent the number of games Fred bowled to get an average of 177 = X

His total points scored in that game would be

177 × X

= 177X

To achieve an average of 178 for his next game,

The total number of points he scored was 199, hence that is represented as:

178 = 177X + 199/ X + 1

178(X + 1) = 177X + 199

178X + 178 = 177X + 199

178X - 177X = 199 - 178

X = 21

Hence, Fred bowled 21 games to achieve an average of 178

Therefore, the score he needs to have on the 23rd game is obtained as:

= (23 × 183) - (22 × 178) = 4209 - 3916 = 293

Therefore, it is possible for Fred to raise his average from 178 to 183 in a single game, but he must bowl 293 in his next game to do this.

Answer:

$6,000

Step-by-step explanation:

multiply 8000 by .75

Answer:

-14x² - x + 4

Step-by-step explanation:

(-10x² + 5x - 3) - (4x² + 6x - 7)

= (-10x² + 5x - 3) - (+4x²) - (+6x) - (-7)

= (-10x² + 5x - 3) -4x² -6x +7

= -10x²-4x² +5x-6x -3+7

= -14x²  - x + 4

Answer:

-1/8x-22

Step-by-step explanation:

Insert 3 in the RHS bracket

Insert - in the RHS bracket

Simplify

Answer:

\(-\frac{x+176}{8}\)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

6 dollars for 1 pound of sliced turkey

Step-by-step explanation:

You divide the cost by two and the weight by two too

True. bar graphs (aka. column charts) with error bars are used to show the comparison between two variables, not the relationship.

A confidence intervals bar chart (shown as red lines)

In graphs, error bars are used to graphically show data variability and to denote error or uncertainty in reported measurements. They provide a basic indication of a measurement's accuracy or, alternatively, how far the true (error-free) value may deviate from the reported value. The standard deviation of uncertainty, the standard error, or a specific confidence range (such a 95% interval) are frequently represented as error bars. Due to the fact that these values are not the same, the measure chosen needs to be specified clearly in the graph or supporting text.

According to the definition the statement is true.

True. bar graphs (aka. column charts) with error bars are used to show the comparison between two variables, not the relationship.

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