Four times a​ number, subtracted from four​, is twice the number. Find the number.

Answer:

I think its d.8. it sounds like the correct answer.

The required number of roses would be 8. which is the correct answer would be an option (D).

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

The carnations cost $5.25 in all. The roses are $1.68 each. If Fred spent $18.69 altogether.

Let's assume that x would be the number of roses.

According to the given question,

$5.25 + $1.68 × x = $18.69

5.25 + 1.68x = 18.69

1.68x = 18.69 - 5.25

1.68x = 13.44

x = 13.44/1.68

Apply the division operation,

x = 8

Therefore, the required number of roses would be 8.

Hence, the correct answer would be option (D).

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(1) The value of x is in the inscribed chords is  110⁰.

(2) The length of PT is 7.48 cm.

(3) The length of EC is 1.93.

The value of x is calculated by applying intersecting chord theorem as shown below;

x = ¹/₂ ( 360 - ( 40⁰ +  100⁰ )

x = ¹/₂ (360 - 140 )

x = ¹/₂ (220)

x = 110⁰

2. The length of PT is calculated as follows;

The radius of the circle = length NT,  is calculated as follows;

A = πr²

r² = A/π

r = √ (A/π)

r = √ (25π/π)

r = 5 cm = NT = NM

PT is calculated by applying Pythagoras theorem as follows;

NP = NM + MP

NP = 5cm + 4 cm

NP = 9 cm

PT = √ (9² - 5²)

PT = 7.48 cm

3. The length of EC is calculated  by applying chord theorem as follows;

AE. ED = BE . EC

ED = AD - AE

ED = 12 - 3 = 9

Now, solve for EC;

AE. ED = BE . EC

3 x 9 = 14(EC)

27 = 14(EC)

EC = 27/14

EC = 1.93

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Answer:

x= 12

Step-by-step explanation:

First, we can note that the angles in a pentagon add up to 540°

We can, using the image below, conclude that angles a+b+c+d+f=540

Furthermore, a is on a straight line with 7x+4, and so on, so

180-(7x+4)= a

176-7x=a

180-(4x+1) = b

179-4x = b

180-(9x-6) = c

186 - 9x = c

180 - (4x+9) = d

171 - 4x = d

180 - (5x+4) = f

176 - 5x = f

a+b+c+d+f = 540

176-7x + 179-4x + 186 - 9x + 171 - 4x + 176 - 5x = 540

888 - 29x = 540

348 = 29x

x = 12

Answer:

0.98

Step-by-step explanation:

Assuming the number of questions on all the tests is 10,

9+9+10+10+10 / 50

You get 50 by doing 5 quizzes x 10 questions per quiz.

48/50 = 0.98

The exact values of the remaining trigonometric functions are listed below:

Case 3: cos θ = 3 / 5, tan θ = 4 / 3, cot θ = 3 / 4, sec θ = 5 / 3, csc θ = 5 / 4

Case 4: sin θ = √11 / 6, tan θ = √11 / 5, cot θ = 5√11 / 5, sec θ = 6 / 5, csc θ = 6√11 / 11

Case 5: cos θ = 8√73 / 73, sin θ = 3√73 / 73, tan θ = 3 / 8, cot θ = 8 / 3, csc θ = √73 / 3

Case 6: sin θ = 1 / 2, cos θ = √3 / 2, tan θ = √3 / 3, sec θ = 2√3 / 3, csc θ = 2

In this problem we find four cases of trigonometric functions, whose exact values of remaining trigonometric functions must be found. The trigonometric functions are defined below:

sin θ = y / √(x² + y²)

cos θ = x / √(x² + y²)

tan θ = y / x

cot θ = x / y

sec θ = √(x² + y²) / x

csc θ = √(x² + y²) / y

Now we proceed to determine the exact values of the trigonometric functions:

Case 3: y = 4, √(x² + y²) = 5

x = √(5² - 4²)

x = 3

cos θ = 3 / 5

tan θ = 4 / 3

cot θ = 3 / 4

sec θ = 5 / 3

csc θ = 5 / 4

Case 4: x = 5, √(x² + y²) = 6

y = √(6² - 5²)

y = √11

sin θ = √11 / 6

tan θ = √11 / 5

cot θ = 5√11 / 5

sec θ = 6 / 5

csc θ = 6√11 / 11

Case 5: x = 8, √(x² + y²) = √73

y = √(73 - 8²)

y = 3

cos θ = 8√73 / 73

sin θ = 3√73 / 73

tan θ = 3 / 8

cot θ = 8 / 3

csc θ = √73 / 3

Case 6: x = √3, y = 1

sin θ = 1 / 2

cos θ = √3 / 2

tan θ = √3 / 3

sec θ = 2√3 / 3

csc θ = 2

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Answer:

I know the answer but you may select me as Brainliest

Answer:

25

Step-by-step explanation:

Factor the number 4----->2^2

=\left(2^2\right)^{\log _2\left(5\right)}

add the exponent rule-----> (a^b)^c=a^bc

=2^{2\log _2\left(5\right)}

apply log rule----->\:a^{\log _a\left(b\right)}=b

=5^2=25

hope it helps :>

Answer:

18

Step-by-step explanation:

\(0.25*75 = 18\\\) (must round down for population)

Answer:

$27.45

Step-by-step explanation:

hope this helps!

plz mark me brainliest!

One machine will be used for 30 minutes, while the other will be used for 10 minutes when you have 40 minutes to work out at the gym, and you want to use both equipment to burn a total of 300 calories.

Given that,

You have 40 minutes to work out at the gym, and you want to use both equipment to burn a total of 300 calories.

We have to find how long should you spend using each device.

We know that,

Let the number of minutes spent on one machine be x

and number of minutes spent on the other machine be y

Total time spent is 40 minutes

x+y=40   ---->equation(1)

Calories burnt in one machine 8 cal per min

Calories burnt in other machine is 6 cal per min

Total calories to be burnt is 300 calories

8x+6y=300   ----->equation(2)

Multiply 8 to equation(1) and subtract equation(2).

8(x+y=40)

8x+8y=320

8x+6y=300

-----------------

0+2y=20

y=20/2

y=10

Substitute y=10 in equation (1)

x+y=40

x+10=40

x=40-10

x=30

Therefore, One machine will be used for 30 minutes, while the other will be used for 10 minutes when you have 40 minutes to work out at the gym, and you want to use both equipment to burn a total of 300 calories.

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Answer:

42%

Step-by-step explanation:

x is for the volume of the  container

the amount filled in the first container=0.30x

the volume of the first container + 50% of the second=(x+x*50%)=1.5 x

the amount of acid in the second container= 1.5x * 50%=0.75x

total amount of acid in the third one =0.3x+0.75x=1.05x

total solution : x+1.5x=2.5x

percentage=1.05x/2.5x= 0.42 or 42%

The graph of the equation y = \(2^{x}\) - 5 is obtained by shifting the graph of

y =\(2^{x}\)  downside by 5 units.

To find a graph of equation y = \(2^{x}\) - 5, we can start with the reference of the parent function y = \(2^{x}\) and also apply the necessary transformations.  Initiating with the graph of the parent function y =\(2^{x}\) - 5.

This is an exponential function that passes through the point( 0, 1) and has a positive pitch. Apply the transformation -5 units over. This means we shift the entire graph over by 5 units. The point( 0, 1) will now come( 0,-4).thus, the graph of the equation y =  \(2^{x}\)- 5 is attained by shifting the graph of y =  \(2^{x}\) downcast by 5 units. The factual shape of the graph will act as that of the parent exponential function, but it'll be shifted over by 5 units.

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The correct question is given below-

Graph the equation shown below by transforming the given graph of the parent function. y= \(2^{x}\) obtain  y=\(2^{x}\)-5.

Answer:

135.

A. 5

B. 7

C. 2

D. 15

E. 24

F. 2

143: 15

144: ( A even/odd number)

Explanation:

Did it in a rush cause i gotta do mines. if wrong, I'll try better next time.

Answer:

Five years ago, cheryl was d years old

a. cheryl  is  (d+5) years old

b. Brandon is  two years older than  Cheryl

so bradon = (d+5+2) = d+7 years old

c. sum of their ages now = d+5+d+7 = 2d+12

d. sum of their ages two years from now

= (d+5+2) + (d+7+2) = 2d+16

143.

Age of sarah = 5 years

clayton age = 5+x

according to questiom

5+x= 3*5

5+x = 15

x= 15 -5 = 10 years

144.

age of Adam = d years

age  of Brandon = (d+b)

accordind to question

d+b = 2d

2d-d = b

d = b  years

Answer:

6x-15 3(x-5) 3/2(2x-10)

Step-by-step explanation:

simplify

-1/2(-12x+30)

6x-15

factor in different ways

3(x-5)

3/2(2x-10)

Answer:

Part a: A square and a rhombus both have sides of equal length.

Let's calculate the length of each side.

\(\overline{PL}: \sqrt{(0-5)^2+(3-3)^2}=\sqrt{25+0}=5\\\overline{LA}\sqrt{(5-2)^2+(3-(-1))^2}=\sqrt{3^2+4^2}=5\\\overline{AN}:\sqrt{(2-(-3))^2+(-1-(-1))^2}=\sqrt{25+0}=5\\\overline{NP}:\sqrt{(-3-0)^2+(-1-3)^2}=\sqrt{3^2+4^2}=5\)

All sides measure 5. So it's at least a rhombus (think of a square as a rhombus with extra restrictions).

Part b: A square has extra restriction, more important all angles being 90° and diagonals having the same length. If you discussed about slopes it's easy to see that two sides are horizontal but the other two are NOT vertical. Which might be proof enough.

But the exercise looks about lengths on the plane, so let's measure diagonals.

\(\overline{PA}=\sqrt{(0-2)^2+(3-(-1))^2}= \sqrt{2^2+4^2}=\sqrt{20}\\\overline{LN}=\sqrt{(5-(-3))^2+(3-(-1))^2}= \sqrt{8^2+4^2}=\sqrt{80}\)

The two diagonals have different lengths, so the figure cannot be a square.

Answer: We can use the trigonometric ratios of a 30-60-90-degree triangle to find the length of side x. In a 30-60-90 triangle, the side opposite the 30-degree angle is half the length of the hypotenuse, and the side opposite the 60-degree angle is √3 times the length of the side opposite the 30-degree angle.

Let's call the length of the hypotenuse h. Then, the length of the side opposite the 30-degree angle is h/2, and the length of the side opposite the 60-degree angle is (h/2)√3.

Using this information, we can set up the following equation:

(h/2)√3 = 9

Solving for h, we get:

h = 18/√3

To find the length of side x, we need to use the trigonometric ratio for the sine of the 60-degree angle:

sin(60°) = opposite/hypotenuse

sin(60°) = x/(h/2)

Substituting h = 18/√3, we get:

sin(60°) = x/((18/√3)/2)

Simplifying, we get:

sin(60°) = x/(9/√3)

√3/2 = x/(9/√3)

Multiplying both sides by 9/√3, we get:

x = (9/√3) * (√3/2)

Simplifying, we get:

x = (9/2)√3

Therefore, the length of side x is (9/2)√3 with a rational denominator.

Step-by-step explanation:

Answer:

1 Shirt costs $12.50

Step-by-step explanation:

First, set up an equation

18x=12x+75

Subtract 12x from both sides

6x=75

Divide both sides by 6

x=12.5

Answer:

Step-by-step explanation:

y + 2 = 12(x - 3)

y + 2 = 12x - 36

y =12x - 38

The required equation of the line passing through (3, -2) and parallel to the line represented by y = 12x - 2 is y = 12x - 38.

Slope is usually denoted by m.

Slope is defined as the change in the value of the y coordinates with respect to the change in the value of x coordinates.

Equation of a line in slope intercept form is y = mx + c where m is the slope and c is the y-intercept.

y-intercept is the y coordinate when x coordinate equals zero.

It is given that the required line is parallel to y = 12x - 2.

Comparing with the slope intercept form of the line, the slope of  y = 12x - 2 is 12.

Slope of two parallel lines are equal.

So the slope of the required line = 12

It is also given that required line passes through the point (x, y) = (3, -2).

Substituting these values,

-2 = (12 × 3) + c

-2 = 36 + c

c = -2 - 36

c = -38

So the required equation is found by substituting m = 12 and c = -38.

y = 12x - 38

Hence the equation of the line passing through (3, -2) and parallel to the line y = 12x - 2 is y = 12x - 38.

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A random variable is said to be continuous if it is measured over an interval. Option b. "is measured over an interval" correctly describes a continuous random variable.

A continuous random variable can take on any value within a given interval, including decimal values. It represents measurements that can be infinitely divided and can take on an uncountable number of values. Examples of continuous random variables include the height of individuals, the time it takes to complete a task, or the temperature of a room. These variables are not restricted to specific discrete values and can vary continuously.

On the other hand, discrete random variables (options a, c, and d) can only take on a countable number of distinct values. Discrete random variables represent outcomes that are distinct and separate, such as the number of students in a class, the number of cars passing by, or the number of heads obtained when flipping a coin.

These variables do not have decimal values and cannot be measured over a continuous range.

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The probability that marksman will hits the target at most 13 times is  27.92%.

The number of successes ("x") is the probability mass function for such binomial distribution.

P(X = x) = ⁿCₓ . pˣ . qⁿ⁻ˣ

We are interested in the likelihood that the target will be struck exactly five times, therefore the desired number of successes is five (i.e., x = 13).

P(X = 13) =  ¹⁵C₁₃. (0.89)¹³ (0.11)²

P(X = 13) = 0.2792

P(X = 13) = 27.92%

Thus, the probability that marksman will hits the target at most 13 times is  27.92%.

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The coefficient associated with CHILD is not significantly different from zero, since its p-value is greater than 0.10. The p-value for the CHILD coefficient is 0.208, which is greater than 0.10.

This means that we cannot reject the null hypothesis that the coefficient is equal to zero. Therefore, we cannot conclude that the coefficient is significantly different from zero.

The estimated value of the CHILD coefficient is -0.045, which means that a unit increase in the number of children per capita is associated with a decrease in GDP growth per capita by 0.045%. However, since the p-value is greater than 0.10, we cannot be confident that this decrease is real.

In other words, the data does not provide enough evidence to conclude that the number of children per capita has a significant impact on GDP growth per capita.

Here is a table of the p-values for the estimated coefficients:

Coefficient p-value

   BB         0.0004

 CHILD        0.208

As you can see, the p-value for the CHILD coefficient is much larger than the p-value for the BB coefficient. This means that there is much less evidence to suggest that the CHILD coefficient is significantly different from zero.

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The level from each growth factors is an illustration of combination

There are 90 ways of combining one level from each growth factors

From the complete question (see attachment), we have the number of levels in each growth factor is:

So, the number of combination (n) is:

n = 3 * 5 * 2 * 3

n = 90

Hence, there are 90 ways of combining one level from each growth factors

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90-12

=78 I think the answer if this questions

Answer:

1,2,3,6

Step-by-step explanation:

6x1, 2x3, 3x2, 6x1

i study hard and work my hardest

Answer:

Step-by-step explanation:

The dilation will affect every side by a factor of 5/6

The perimeter of the image:

The factor will be same: 5/6

Answer:

Step-by-step explanation:

Using Trigonometry: SOH CAH TOA,

Cross multiplying:

x = tan (47°) × 35

  =  37.5329

  = 37.53 to two decimal places