I really need help on this, how do you get 20 as a denominator and 19 as a numerator in the end answer? Pls help

Answer:

a

Step-by-step explanation:

:)

On the slope a transverse line between 4, (-4)

Answer:

x = 12

I apologize if it is wrong.

Answer:

V = l x w x h

Step-by-step explanation:

Answer:

i dont seeeeeee an x

Step-by-step explanation:

Answer:

5 drahms are equal to 300 grains.

Step-by-step explanation:

First, I figured out that 1 drahm is equal to 3 scruples, which are equal to 60 grains.

So, 60 grains = 1 drahm.

Then, I multiplied the number of grains for one drahm by x, the number of drahms that are equal to 300 grains.

This translates to the equation 60 x X = 300.

60 x 5 = 300 grains, which means 5 drahms equal to 300 grains.

Hope this helps.

Answer:

Consider the statement: "If it rains, then it is wet."

For a math statement: "If a function is differentiable, then it is continuous."

For a non calculus statement: "If 4 divides a number then that number is even."

Answer:

\(\large\fbox{\textsf{x = 13, 1.}}\)

Step-by-step explanation:

\(\textsf{For this problem, we are asked to substitute possible values of x.}\)

\(\Large\underline{\textsf{What is Substitution?}}\)

\(\textsf{\underline{Substitution} is \underline{replacing} an \underline{unknown value} with a \underline{known value}.}\)

\(\textsf{Unknown values can be represented as variables, as for this problem.}\)

\(\large\underline{\textsf{We are given 4 options:}}\)

\(\mathtt{x = 13}\)

\(\mathtt{x = 1}\)

\(\mathtt{x = -29}\)

\(\mathtt{x = 42}\)

\(\textsf{Let's begin by Substituting.}\)

\(\large\underline{\textsf{Equation:}}\)

\(\mathtt{(x-7)^{2}=36}\)

\(\large\underline{\textsf{Substitute 13:}}\)

\(\mathtt{(13-7)^{2}=36}\)

\(\mathtt{6^{2}=36}\)

\(\mathtt{36=36} \ \checkmark\)

\(\large\underline{\textsf{Substitute 1:}}\)

\(\mathtt{(1-7)^{2}=36}\)

\(\mathtt{-6^{2}=36}\)

\(\mathtt{36=36} \ \checkmark\)

\(\large\underline{\textsf{Substitute -29:}}\)

\(\mathtt{(-29-7)^{2}=36}\)

\(\mathtt{-36^{2}=36}\)

\(\mathtt{ 1296 \neq 36}\)

\(\large\underline{\textsf{Substitute 42:}}\)

\(\mathtt{(42-7)^{2}=36}\)

\(\mathtt{35^{2}=36}\)

\(\mathtt{1235 \neq 36}\)

The missing values are:

BC = 25, BN = 16, NC = 9, and AN = 12

Given:

AB = 20

AC = 15

Using the Pythagorean theorem in triangle ABC:

CB = √AC² + AB²

CB= √20² + 15²

CB= √625

CB= 25

Since, AN is altitude we have ΔNBA~ΔABC and ΔNAC~ΔABC

BN / AN = BA / CB

BN/ 20= 20/25

BN = 16

and, AN / BA = AC / CB

AN /20 = 15/ 25

AN = 12

Now, CN=  CB - BN

CN = 25- 16

CN= 9

BC^2 = 20^2 + 15^2

BC^2 = 400 + 225

Since ΔANC is a right triangle so

AN = √15²-12²

AN = √81

AN = 9

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Value of t0 for option a is ±1.895 and for option, b is 1.895 using symmetric and complement properties respectively.

Given  that t follows a t7 distribution let's understand what is t7 distribution

The t distribution (Student's t-distribution) is a "probability distribution used to estimate population parameters when the sample size is small (n<30) or the population variance is unknown".

The t-distribution describes a set of observations in which the majority of observations fall close to the mean and the remainder of the observations form the tails on either side. It is a type of normal distribution that is used for smaller sample sizes when the data variance is unknown.

The degrees of freedom of the t distribution determine its shape, and as the degrees of freedom increase, the t distribution approximates a normal distribution.

The degrees of freedom stand for "the number of distinct observations in a set of data. If we estimate a mean score from a single sample, for example, the number of independent observations is equal to the sample size minus one."

P(|t|<\(t_{0}\)) = 0.9

We can rewrite the expression using absolute value properties as follows:

P(-\(t_{0}\)<\(t_{7}\)<\(t_{0}\)) = 0.9

Using symmetric property we can write

1-2P(t7 < -t0) = 0.9

0.1 = 2P(t7 < -t0)

P(t7 < -t0) = 0.05

And we can find the value by typing "=T.INV(0.05,7)" into Excel.

So, in this case, the answer is t0 = ±1.895

for part B we have p(t>t0) = 0.05 for this we have to use complement rule

1- p(t7<t0) = 0.05

p(t7<t0) = 1 - 0.05  

p(t7<t0) = 0.95

And we can find the value by typing "=T.INV(0.95,7)" into Excel.

So, in this case, the answer is t0 = 1.895

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Answer:

63 ft

Step-by-step explanation:

tan(68 degrees)= 85/y  

y tan (68 degrees)=85

y=85/tan(68 degrees) ( cross multiply)

y = 34.34 feet

tan (41 degrees)=85/x+y

(x+y)tan(41 degrees)=85

x+y=85/tan 41 degrees

x=85/tan(41 degrees) - y

x= 85/tan (41 degrees)-(34.34) (cross multiply)

Round 63.44 to the nearest hundredth

Therefore, Travis stepped back 63 feet to gain a better view!

Answer:

0.0016

Step-by-step explanation:

Hope this helps!

The fundamental theorem of arithmetic states that every natural number greater than 1 can be written as a product of primes. Using strong induction, we can prove this.

Let's proceed with the strong induction proof. We start by considering the base case, where m = 2. Since 2 is prime, it can be written as a product of primes itself.

Next, we assume that for all natural numbers k such that 2 ≤ k ≤ m, the statement holds true, i.e., k can be expressed as a product of primes. Now, we aim to prove that m+1 can also be expressed as a product of primes.

We know that m+1 is either prime itself or composite. If m+1 is prime, then it can be written as a product of a single prime, satisfying the theorem.

On the other hand, if m+1 is composite, it can be written as a product of two positive integers a and b, where 2 ≤ a ≤ b ≤ m. Since a and b are both less than or equal to m, we can apply the inductive hypothesis to express a and b as products of primes. Therefore, we can write m+1 as a product of primes by combining the prime factorizations of a and b.

By strong induction, we have shown that for any natural number m greater than 1, it can be expressed as a product of primes. This completes the proof of the fundamental theorem of arithmetic.

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thanks, this is a answer (:

The predicted number of adults in Oak City whose main source of news is newspapers or the radio is 85

To predict the number of adults in Oak City whose main source of news is newspapers or the radio, we need to add the number of adults who answered "Newspapers" to the number of adults who answered "Radio".

According to the sample data

Number of adults who answered "Newspapers": 64

Number of adults who answered "Radio": 21

Therefore, the predicted number of adults in Oak City whose main source of news is newspapers or the radio we have to use the addition

64 + 21 = 85

Rounding this answer to the nearest whole number, we get

85 ≈ 85

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The given question is incomplete, the complete question is:

There are 44,000 adults living in Oak City. In examining attitudes toward the news, a research group asked a random sample of Oak City adults "What is your main source of news?" The results are shown below. Main Source of News Newspapers Number of Adults 64 Internet 80 Television 126 Radio 21 Other 40 Based on the sample, predict the number of adults in Oak City whose main source of news is newspapers or the radio. Round your answer to the nearest whole number.

Answer:

9.22

Step-by-step explanation:

use the distance between 2 points formula:

d = √(x2 - x1)² + (y2 - y1)²  and the 2 points (-7, -2) (2, -4)

d = √(2 - -7)² + (-4 - -2)² = √(9² + -2²) = √85 = 9.22

Answer: Creo que no

Step-by-step explanation:

un numero entero es un numero negativo como:

-4

-0.87

-979.27

Answer:

the first option

Step-by-step explanation:

i know there's a rule to all of this but it's been a while since i've done this kind of math.

if you plug in the zeros to the equation, they solve

(-2, 0) --> (-2-2)(-2+1)(-2+2) = 0

(-1, 0) --> (-1-2)(-1+1)(-1+2) = 0

(2, 0) --> (2-2)(2+1)(2+2) = 0

The area of the four corners left over would be equal to the area of the square minus the area of the circle, which is the square's area minus πr2. Therefore, the area of the four corners would be A - πr2.

Square is a two-dimensional geometric shape with four sides of equal length and four right angles. It is a regular quadrilateral and is one of the most basic shapes in geometry. Squares are widely used in carpentry, engineering, architecture and other areas. Squares can be drawn on a flat surface with a ruler and a pencil, and can also be created using a compass and a straightedge. Squares are often used as a symbol of strength, stability and order.

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The two statements that are true about the company's Market share going from 50 to 65 percent of the total market . The initial market share and multiply by 100, which gives 30 percent. Option B is correct answer.

The two statements that are true about the company's market share going from 50 to 65 percent of the total market are:

The company's market share increased by 30 percent: The difference between the initial market share of 50 percent and the final market share of 65 percent is 15 percentage points. To calculate the percentage increase, we can divide the difference by the initial market share and multiply by 100, which gives (15/50) x 100 = 30 percent.

The company's relative market position improved: With a market share of 65 percent, the company now holds a greater proportion of the total market than before. This means that its relative market position has improved compared to its competitors, who have a smaller share of the market. This could translate into increased bargaining power, profitability, and other benefits for the company.

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a company’s market share went from 50 to 65 percent of the total market. of the following choices, which two statements about the company's market shares are true?
A) 40

B) 30

C) 35

D) 45

Answer:-2

Step-by-step explanation:

Answer: 2 5/6 I think.

Wait no. I just did the math and it would be 2 1/2

The probability of success in any attempt to make a carrot cake was 0.3 out of 10 attempts, The probability of having exactly 3 successes is 0.2661.

The probability of having exactly 3 successes is 0.2661, considering that the probability of success in any attempt to make a carrot cake was 0.3 out of 10 attempts.

Explanation: The question gives us:

P(Success) = 0.3, so

P(Failure)

= 1 - 0.3

= 0.7 and n = 10

Let X be the number of successes in 10 attempts

The probability of having exactly x successes in n trials is given by the binomial probability mass function:

\(P(X = x) = nCx * p^x * q^(n-x),\)

where \(nCx = n! / (x! * (n-x)!)\)

Where x = 3, n = 10, p = 0.3 and q = 0.7

Putting these values in the formula, we get:

P(X = 3) = 10C3 * 0.3^3 * 0.7^(10-3)P(X = 3)

= 120 * 0.027 * 0.057P(X = 3)

= 0.2661

Therefore, the probability of having exactly 3 successes is 0.2661.

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Answer: See explanation

Step-by-step explanation:

5x + 4y = 24 ....... equation i

x + 7y = 11 ......... equation ii

Multiply equation i by 1

Multiply equation ii by 5

5x + 4y = 24 ....... equation iii

5x + 35y = 55 ....... equation iv

Subtract equation iv from iii

-31y = -31

y = 31/31

y = 1

It has been proves that y= 1

Since y = 1

x + 7y = 11

x + 7 = 11

x = 11 - 7

x = 4

Answer:

Valid

Step-by-step explanation:

Because if you study you would most likely know what the test/quiz/exam is about and understand the problems. If you don't study then you would probably not know how to do the work or solve the problems on the quiz/test/exam. (very sorry if wrong!)

Answer:

x=10

Step-by-step explanation:

3x+40+110=180

3x+150=180

3x=180−150

3x=30

x= 3 /30

x= 10

Answer:

x = 10

Step-by-step explanation:

3x + 2(20) + 110 = 180

3x + 40 + 110 = 180

3x + 150 = 180

      -150    -150

3x = 30

3       3

x = 10

Check:

3x + 2(20) + 110 = 180

3(10) + 2(20) + 110 = 180

30 + 40 + 110 = 180

70 + 110 = 180

180 = 180

The radius of the circle is approximately 10.17 units (rounded to two decimal places).

To find the radius of the circle, we need to use the formula that relates the central angle to the length of the arc and the radius of the circle. The formula is given as:

arc length = radius x central angle

In this case, the arc length is given as 24.4 and the central angle is given as 2.4 radians. Substituting these values in the formula, we get:

24.4 = r x 2.4

Solving for r, we get:

r = 24.4 / 2.4

r ≈ 10.17

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The area of the composite figure comprising of a semicircle and a parallelogram is about 110.3 square units.

A composite figure is a figure comprising of two or more simple geometric figures.

The figure consisting of a parallelogram and a semicircle is a composite figure, which indicates  that the area of the figure is the sum of the area of the parallelogram and the area of the semicircle

The dimensions of the semicircle includes;

Diameter length, D = 8 units

The area of the circle = π·D²/4

Therefore; Area of the circle = π × (8 units)²/4 = 16·π square units

The dimensions of the parallelogram are;

The length of the base, b = 10 units

The height of the parallelogram, h = 6 units

The area of the parallelogram = b × h

Therefore; Area of the parallelogram = 10 units × 6 units = 60 square units

The area of the figure = 16·π square units + 60 square units ≈ 110.3 square units

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Answer:

The width, x, is in the interval (0, 7), or 0 < x < 7.

Step-by-step explanation:

width = x

length = 7x + 7

area = x(7x + 7)

x(7x + 7) < 392

7x² + 7x - 392 < 0

x² + x - 56 < 0

(x - 7)(x + 8) < 0

We have two points of interest on the number line:

-8 and 7

That makes three intervals of interest:

(-∞, -8), (-8, 7), (7, ∞)

Now we test a number from each interval.

Try -10:

(x - 7)(x + 8) < 0

(-10 - 7)(-10 + 8) < 0

(-17)(-2) < 0

34 < 0 False

Interval (-∞, -8) does not work.

Try 0:

(x - 7)(x + 8) < 0

(0 - 7)(0 + 8) < 0

(-7)(8) < 0

-56 < 0 True

Interval (-8, 7) works.

Try 10:

(x - 7)(x + 8) < 0

(10 - 7)(10 + 8) < 0

(3)(18) < 0

54 < 0 False

Interval (7, ∞) does not work.

Since we are dealing with a rectangle, the length and width must be positive numbers.

The interval (-8, 7) works mathematically for the width, but it must be limited to positive numbers, so the width must be in the interval

(0, 7)