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Answer:

the answers are

a)-22

b)22

d)12

Twice a number is 24

2n = 24

Let number = n

According to Question

2 × n = 24

\( \tt \implies 2n = 24\)

Answer:

a = 2x - b

Step-by-step explanation:

\(x = \frac{a + b}{2}\)

Use the reciprocal of 1/2 to get rid of the fraction by multiplying both sides of the equation by 2/1:

\((\frac{2}{1})x = \frac{a + b}{2} (\frac{2}{1})\)

2x = a + b

finally, subtract b from both sides of the equation to isolate a:

2x - b = a + b - b

2x - b = a

To eliminate the roots in 1.1 and 1.2, we can use trigonometric substitution. In 1.1, we can substitute x = 4 sin(theta) to eliminate the root of 4. In 1.2, we can substitute z = 7 sin(theta) to eliminate the root of 7.

1.1. V64+2 + 1 We can substitute x = 4 sin(theta) to eliminate the root of 4. This gives us:

V64+2 + 1 = V(16 sin^2(theta) + 2 + 1) = V16 sin^2(theta) + V3 = 4 sin(theta) V3 1.2. V4z2 – 49

We can substitute z = 7 sin(theta) to eliminate the root of 7. This gives us:

V4z2 – 49 = V4(7 sin^2(theta)) – 49 = V28 sin^2(theta) – 49 = 7 sin(theta) V4 – 7 = 7 sin(theta) (2 – 1) = 7 sin(theta)

Here is a more detailed explanation of the substitution:

In 1.1, we know that the root of 4 is 2. We can substitute x = 4 sin(theta) to eliminate this root. This is because sin(theta) can take on any value between -1 and 1, including 2.

When we substitute x = 4 sin(theta), the expression becomes V64+2 + 1 = V(16 sin^2(theta) + 2 + 1) = V16 sin^2(theta) + V3 = 4 sin(theta) V3

In 1.2, we know that the root of 7 is 7/4. We can substitute z = 7 sin(theta) to eliminate this root. This is because sin(theta) can take on any value between -1 and 1, including 7/4.

When we substitute z = 7 sin(theta), the expression becomes: V4z2 – 49 = V4(7 sin^2(theta)) – 49 = V28 sin^2(theta) – 49 = 7 sin(theta) V4 – 7 = 7 sin(theta)

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Answer:  

$4.09

Step-by-step explanation:

14.20+6% of 14.20 = 15.05
118% of 15.05= 18.29
18.29-14.20=4.09

Answer:

um okay good for p and q......

Answer:

Well good for them ig

Step-by-step explanation:

Factoring the roots, the values of A and B are given as follows:

The expression is:

\(\sqrt{\frac{45\alpha z^3}{40y}} = \frac{A\sqrt{\alpha z}}{B\sqrt{2y}}\)

We have that:

\(\frac{45}{40} = \frac{9}{8}\)

Hence:

\(\sqrt{\frac{45\alpha z^3}{40y}} = \sqrt{\frac{9\alpha z^3}{8}} = \sqrt{\frac{9\alpha z^2 \times z}{4 \times 2}} = \frac{A\sqrt{\alpha z}}{B\sqrt{2y}}\)

Hence, comparing the last two equalities:

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The number of floors can this elevator travel directly up in 80 seconds is, 26 2/3 floors

The distance covered by the object is equal to the product of the speed at which the object is moving and time taken for covering the distance.

Distance = Time × Speed

We are given that the elevator travels 36 floors in 108 seconds, so the rate can be calculated as follows:

rate = 36 floors / 108 seconds

      = 1 floor / 3 seconds

To determine how many floors the elevator can travel in 80 seconds, we can use the rate and the formula: distance = rate x time:

distance = rate x time

distance = (1 floor / 3 seconds) x 80 seconds

distance = 80 / 3 floors

distance = 26 2/3 floors

So, the elevator can travel directly up 26 2/3 floors in 80 seconds.

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10Answer:

10 + 10 =

Step-by-step explanation:

=20

A slope of b = 0.007 indicates a weak positive relationship between the two variables, where a small increase in the independent variable corresponds to a small increase in the dependent variable.

The slope of a linear relationship represents the rate of change between two variables. In this case, a slope of b = 0.007 suggests a weak positive relationship between the variables. The positive sign indicates that as the independent variable increases, the dependent variable also tends to increase. However, the small value of 0.007 indicates that the increase in the dependent variable is relatively small for each unit increase in the independent variable.

To illustrate, let's consider an example where the independent variable represents time and the dependent variable represents the number of customers in a store. With a slope of 0.007, it means that for every unit increase in time (e.g., one hour), we can expect a small increase of 0.007 customers on average. This indicates a weak positive relationship, as the increase in customers is relatively modest for each unit increase in time.

In summary, a slope of b = 0.007 indicates a weak positive relationship between the two variables, where a small increase in the independent variable corresponds to a small increase in the dependent variable.

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Answer:

5 is the answer

Step-by-step explanation:

⅚÷⅙

5/6*6/1

5

Answer:

2/5

Step-by-step explanation:

you switch the numbers from the equation

The tangent line has the largest slope at x = 2.828.

Given function is:

y = 1 + 40x³ - 3x⁵

To find the points where the tangent line has the largest slope, we need to differentiate the given function. Differentiating the function, we get;

y' = 120x² - 15x⁴

Let us equate y' to 0 and solve for x

120x² - 15x⁴ = 0

Factor x² from the above expression,

x²(120 - 15x²) = 0

Therefore, either x = 0 or x = ±√(8) = ±2.828

Where x = 0, slope = y' = 0 (horizontal tangent)

Where x = 2.828, slope = y' = 338.8345 (maxima)

Where x = -2.828, slope = y' = -338.8345 (minima)

Therefore, the tangent line has the largest slope at x = 2.828.

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Answer:

36 is the median of give data

Answer:

y = 2

Step-by-step explanation:

x + y = 8

6 + y = 8  Subtract 6 from both sides of the equation

y = 2

26 points are scored in the fifth game.

The average is defined as the mean value which is equal to the ratio of the sum of the number of a given set of values to the total number of values present in the set.

Given,

First four games, a netball team scores an average of 31 points per game.

x/4=31

Let x represents four games

x=124

After the fifth game, the average for the first five games is 30

y/5=30

Let y represents five games

y=150

We need to find the number of points scored in fifth game.

x-y

124-150

26

Hence, 26 points are scored in the fifth game.

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Answer:

b

Step-by-step explanation:

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Answer:

i think Muhammad

Step-by-step explanation:

Answer:

Look Down

Step-by-step explanation:

I believe its B Zoroastar

Answer: it would be 20

Step-by-step explanation: becauseeeeeeeeeeeeeeeee

Answer:

  3/8 cubic units

Step-by-step explanation:

The volume of a rectangular prism is given by the formula ...

  V = LWH

Using the given dimensions, we find the volume to be ...

  V = (1/2)(1)(3/4) = 3/8 . . . . cubic units

Answer:

20

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

I did 97.20 divided by 15 and got 6.48. Then, I did 155.52 divided by 6.48 and got 24. I hope this helps you!

Answer: A

Step-by-step explanation:

If they are similar, that means the proportions for corresponding sides will be the same.

          I personally ignore the picture and use the labels of "triangle RST and triangle XYZ" that the problem gives because the XYZ picture is not lined up with the similarity it has with RST.

(A) says that side ST is corresponding with side YZ,

          [] Triangle RST and triangle XYZ

          -> Correct

(A) also says that side RT is corresponding with size XZ,

          [] Triangle RST and triangle XYZ

          -> Correct

               This means that option A is the correct answer.

Answer:

x=10

Step-by-step explanation:

If we subtract 2 from 52 we get 50 and ten mutiplys into 50.

Answer: 3) 3/4 5) (0,1)

Step-by-step explanation:

For number 3 you go rise over run. From the point on the y-axis you rise 3 and then run 4 to the x-axis if that makes any sense

1. please start to pay attention

1. an undefined slope is vertical

2. 90-70/15-3 = 20/12 = 10/6 = 5/3

3. 3/4 (rise over run)

4. slope: -1/5   y-intercept: 12

5. 1

6. y = 1/2x +b

   3 = 1/2(1) +b

   3 = 1/2+b

   subtract 1/2 from both sides

   2 1/2 = b

   y = 1/2x + 2 1/2

The usual margin of error we strive for is a 95% probability that our estimate is within the margin.   Assuming a normal distribution (and that we have a big enough sample not to worry about t tests) that corresponds to between minus and plus two standard deviations of the mean (remember the 68-95-99.7 rule).   So our margin of error is plus or minus two standard deviations.

Answer: ±2%

1 milligram = 0.001 gram

x milligrams = 6 grams

By crossmultiplying, it becomes

0.001 * x = 6 * 1

0.001x = 6

x = 6/0.001

x = 6000

The mass in milligrams is 6000 milligrams

Answer:

9 cm

Step-by-step explanation:

Every centemeter represents three. 3km=1cm.

The number of kilometers/3= the number of centemeters.

the number of centemeters x 3= the number of kilometers.

We now have three equations to help us covert back and forth.

The question asks us to convert 27km in real life, to centemeters on a map. We use the first forumla to help us:)

The number of kilometers/3= the number of centemeters.

27/3=the number of centemeters.

Thus, the answer is nine.

Answer:

9cm

Step-by-step explanation:

1:3 this is the starting ratio

if we replace 3 for 27 we just divide them to get 9 so the new ratio is 9:27.

The size of the angle C is θ = 56°, given that BC and DE are tangents to the circle.

The tangent to a circle theorem states that a line is tangent to a circle if and only if the line is perpendicular to the radius drawn to the point of tangency

Considering the Isosceles triangle ∆AOB and its exterior angle ∠BOD;

∠BOD = 180° - 2(48) {exterior angle of a triangle equals 2 opposite interior angles}

∠BOD = 96°

If the line DE is extended to line BC at E' we will have a quadrilateral BODE' and a triangle ∆CE'D, hence;

∠B = ∠D = 90° (angles between radius and lines tangent to the circle)

so;

∠BOD + ∠OBD + ∠ODE' + ∠BE'D = 360° {sum of interior angles of a quadrilateral}

96° + 90° + 90° + ∠BE'D = 360°

276° + ∠BE'D = 360°

∠BE'D = 360° - 276° {subtract 276° from both sides}

∠BE'D = 84°

Considering triangle ∆CE'D;

∠DE'C = 180° - 84° {sum of angles on a straight line}

∠DE'C = 96°

We thus derive θ using the triangle ∆CE'D;

θ = 180° - (28 + 96)° {sum of interior angles of a triangle}

θ = 180° - 124°

θ = 56°

In conclusion, we have derived the size of the angel θ as 56° by proper application of the tangent to a circle theorem.

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Answer:

d)142º

Step-by-step explanation:

\(\widehat{AB}=2\times71\º=142\º\)