78miles on 3gallons is it 26

Answer:

13

Step-by-step explanation:

the reason why I think it's 13 is because 10 15 15 - 10 = 5 so maybe if you do 13 - 8 = 5 maybe they have a relationship I really hope you get it right if you don't I understand.

Answer:

B. 12 Units

Step-by-step explanation:

Create a ratio :

10/8 = 15/x

10/8 = 1.25

15/1.25 = x

x = 12

Answer:

40 and 67

Step-by-step explanation:

Answer:

1.) 12 hours   2.) She made a multiplying error in the table.

Step-by-step explanation:

1.)

First, let's find the slope of this equation:

m = 135 - 81 / 5 - 3

m = 54/2

m = 27

Therefore, the equation should be y = 27x.

Now we substitute 324 for y and solve for x:

324 = 27x

12 = x (Divided 27 on both sides.)

Therefore, someone would have to work 12 hours in order to earn $324.

2.)

For this problem, it appears Amanda has found the correct equation for her recipe. When taking a look at the table, however, it seems as though she has made a multiplying error.

The correct option is D that is the value of se represents the standard error of the estimate, which is a measure of the variability of the errors in predicting the response variable (weights) from the predictor variable (heights) using the regression equation.

Specifically, se represents the standard deviation of the residuals, which are the differences between the observed values of the response variable and the values predicted by the regression equation. A smaller value of se indicates that the regression equation provides a better fit to the data and that the predictions of the response variable are more accurate.

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When we write the equation in the slope intercept form then we are going to have y = x/2 + 9. Option B

Depending on the details, there are various ways to express a line's equation. The slope-intercept form, point-slope form, and general form are the most typical forms.

The equation y = mx + b yields a line's slope-intercept form. In this form, you have the coordinates of a point on the line and the slope (m), enabling you to determine the equation.

We know that;

y + 2= 1/2(x + 11)

y + 2 = x/2 + 11

y = x/2 + 11 - 2

y = x/2 + 9

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The given linear programming problem can be analyzed by examining its constraints and objective function.

We are asked to minimize the objective function Z = 1X + 1Y, subject to the constraints:

1. 5X + 3Y < 30
2. 3X + 4Y > 36
3. Y < 7
4. X, Y > 0

To determine whether the problem exhibits infeasibility, unboundedness, or alternate optimal solutions, we'll analyze its feasible region.

Step 1: Plot the constraints on a graph and find the feasible region.
Step 2: Analyze the feasible region and identify its properties.

After plotting the constraints, we find that there is no common area satisfying all constraints.

This indicates that the problem exhibits infeasibility, meaning there is no solution that satisfies all the constraints simultaneously.

In this case, there are no alternate optimal solutions or unboundedness present since no feasible solution exists.

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The ground do the ropes intersect each other is at 4 ft.

AB and ED are the poles (perfectly vertical). BE and DA are the ropes that cross at C.

F is the point directly below C on the ground (line AE), which is perfectly flat and horizontal.

The vertical poles are part of parallel lines.

As a consequence, triangles ABC and DEC have congruent angles at B and E, and at A and D (alternate interior). Of course, ABC and DEC also have congruent angles at C (vertical angles).

Triangles ABC and DEC are similar, with corresponding sides in the ratio 2:1

\(\frac{AB}{DE}= \frac{BC}{EC}= \frac{AC}{DC}= \frac{2}{1}\)

In particular,

BC = 2EC and BE = BC + EC = 2EC + EC = 3EC

Right triangles ABE and FCE, with the same angle at E, are also similar, so

\(\frac{AB}{FC}= \frac{BE}{CE}= \frac{3EC}{EC3.1}\) --> AB = 3FC --> \(FC = \frac{AB}{3}= \frac{12 ft}{3} = 4ft\)

The ropes cross 4 ft above the ground.

Hence the answer is the ground do the ropes intersect each other is at 4 ft.

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Step-by-step explanation:

That means the 96 is  75% of your grade

   96 (.75) + 75 (.25) = 90.75  final grade

Answer:

Option 1 -  7⁵

Step-by-step explanation:

When dividing numbers that have the same base number (7), you subtract bottom exponent from the top exponent.  So exponent  8 - 3 = 5

You keep the same base number and use the resultant exponent.

7⁵

Answer:

48 miles per hour

Step-by-step explanation:

Distance = 264 miles

Time = 5.5 hours

Speed = x

Formula for speed --> Speed = Distance/Time

Speed = 264miles/5.5hours

Speed is = 48 miles/hr

Answer:

-120, -90, -85

Total;

-295

Step-by-step explanation:

Here, we want to write the sum of negative integers in order of the turns given in the question

We have these orders as follows;

-120-90-85

The sum of these is;

-295

The exact value of the given expression. sin 2 cos−1 12 13 is 240/169.

To find the exact value of the given expression, we need to use the identity sin(2θ) = 2sin(θ)cos(θ) and the information provided. The expression you want to find is sin(2 * cos^(-1)(12/13)).

First, let's find the angle θ, which is cos^(-1)(12/13). In a right triangle with the adjacent side = 12 and hypotenuse = 13, we can use the Pythagorean theorem to find the opposite side: Opposite side = √(13^2 - 12^2) = √(169 - 144) = √25 = 5

Now, we can find sin(θ) and cos(θ): sin(θ) = opposite/hypotenuse = 5/13 cos(θ) = adjacent/hypotenuse = 12/13 Next, use the sin(2θ) identity: sin(2θ) = 2sin(θ)cos(θ) = 2(5/13)(12/13) = (10/169)(24) = 240/169 So, the exact value of the given expression is 240/169.

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The percentage change in productivity for this worker is -5.9%.

Productivity is the amount of goods and services produced by a worker in a given amount of time.

A worker produced 79 units of output in 38 hours. The previous week, the same worker produced 75 units in 34 hours.

Let's determine the productivity of the worker each week.

Step 1: Calculate productivity of the worker in the first week (week 1)

Productivity in week 1 = Total output produced / Number of hours worked

= 75 units / 34 hours

= 2.21 units per hour

Step 2: Calculate productivity of the worker in the second week (week 2)

Productivity in week 2 = Total output produced / Number of hours worked

= 79 units / 38 hours

= 2.08 units per hour

Step 3: Determine the percentage change in productivity

Percentage change = ((New value - Old value) / Old value) x 100%

Where,Old value = Productivity in week 1New value = Productivity in week 2

Substituting the values,Percentage change = ((2.08 - 2.21) / 2.21) x 100%

                                                                        = (-0.059) x 100%

                                                                        = -5.9%

Therefore, This employee's productivity has decreased by -5.9% as a whole.The negative sign indicates a decrease in productivity.

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Answer:

1.9 x 10 to the 7th power

Step-by-step explanation:

1.9 x 10 to the 7th power

Answer:

47

Step-by-step explanation:

Let us assume his son be x

So, the oliver age is x + 33

Now eight years ago, oliver age is 5 more than thrice his son present age

x - 8 = 5 + 3x

So,

33 + x = 5 + 3x

2x =28

x=14

o = 33+14 = 47

Using the exterior angle theorem of a triangle, the value of x is 6

From the question, we are to determine the value of x in the given triangle

From one of triangle theorems, we have that

"In a triangle, the exterior angle is always equal to the sum of the interior opposite angle"

In the given diagram,

The exterior angle is (17x - 23)°

and

The two interior angles are (8x -4)° and (3x + 17)°

Thus,

From the theorem, we can write that

(17x - 23)° = (8x -4)° + (3x + 17)°

Now, solve for x

17x - 23 = 8x -4 + 3x + 17

Collect like terms

17x - 8x - 3x = -4 + 17 + 23

6x = 36

x = 36/6

x = 6

Hence, the value of x is 6

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Answer:

Step-by-step explanation:

x + y = 25

2x - y = 6           Solve for y in this the second equation. Add y to both sides

2x  = 6 + y         The ys on the left cancel. Subtract 6 from both sides.

2x - 6 = y

Put this value of y into the first equation

x + y = 25

x + 2x - 6 = 25      Combine on the left

3x - 6 = 25           Add 6 to both sides.

3x = 25 + 6           Combine the right

3x = 31                   Divide by 3

x = 31 / 3            

x = 10.333333

x + y = 25

10.33333 + y = 25  Subtract 10.33333

y = 25 - 10.333333

y = 14.666666

x + y = 25

10.33333 + 14.66666

25 approximately.

2x - y = 6

2*10.33333 - 14.66666

20.66666 - 14.66666

6

You should note that those numbers are repeating decimals

2x - 6 = y

We have demonstrated the definition of an isosceles triangle.

What is an isosceles triangle?

An isosceles triangle is a triangle with at least two equal-length sides in geometry. It is sometimes specified as having exactly two equal-length sides, and sometimes as having at least two equal-length sides, with the latter version including the equilateral triangle as a special case.

The isosceles triangle has both two equal sides and two equal angles. The name derives from the Greek iso (same) and Skelos (leg). A triangle with all sides equal is called an equilateral triangle, and a triangle with no sides equal is called a scalene triangle.

The given diagram shows an isosceles triangle.

Hence, we have demonstrated the definition of an isosceles triangle.

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Answer: The length of AC to one decimal place in the trapezium is 18.1 cm

Step-by-step explanation: Using Pythagoras theorem, we can find the length AC

Pythagoras theorem

c² = a² + b²

Therefore, draw a line from the point B to the line AD and call it line BX.

BX ║ CD

Therefore,

16² - 7² = BX²

256  - 49 = BX²

BX² = 207

BX = √207

BX = 14.3874945699

BX = 14.4 cm

Therefore,

11² + 14.4² = AC²

121 + 207.36 = AC²

AC = √328.36

AC = 18.120706388

AC = 18.1 cm

Hoped This Helped!

Answer:

153*10^3

Step-by-step explanation:

I assumed the first exponential number as 1

\(\huge\text{Hey there!}\)

\(\huge\boxed{\mathsf{(3.4 \times 10^4)(4.5 \times 10^3)}}\\\huge\boxed{\mathsf{\rightarrow 3.4\times10^4 \times 4.5 \times 10^3}}\)

\(\huge\boxed{\mathsf{10^4}}\\\huge\boxed{= 10\times10\times10\times10}\\\huge\boxed{= 100\times100}\\\huge\boxed{= 10,000}\\\\\\\huge\boxed{\mathsf{10^3}}\\\huge\boxed{=10\times10\times10}\\\huge\boxed{= 100\times10}\\\huge\boxed{= 1,000}\)

\(\huge\boxed{\rightarrow\mathsf{3.4\times \bold{10,000} \times 4.5 \times \bold{1,000}}}}\)

\(\huge\boxed{\mathsf{3.4\times10,000}}\\\huge\boxed{= 34,000}\\\\\\\huge\boxed{\mathsf{4.5\times1,000}}\\\huge\boxed{{= 4,500}}}\)

\(\huge\boxed{\mathsf{\rightarrow\bf 34,000\times4,500}}\\\huge\boxed{\rightarrow\mathsf{ORIGINAL \ ANSWER: \frak {153,000,000}}}}\)

\(\huge\boxed{\textsf{Your answer: }\mathsf{153\times10^6}}\huge\checkmark\)

\(\huge\text{Good luck on your assignment \& enjoy your day!}\)

~\(\huge\boxed{\frak{Amphitrite1040:)}}\)

The average acceleration of Train A over the interval 2 ≤ t ≤ 8 is -40 meters per minute squared.

Explanation:

The average acceleration of a body over a given time interval is defined as the change in velocity divided by the time interval. In this case, we are given the velocity function vA(t) for Train A, and we want to find its average acceleration over the interval 2 ≤ t ≤ 8.

To find the change in velocity over this interval, we can subtract the velocity at t=2 from the velocity at t=8:

Δv = vA(8) - vA(2) = (-120) - 100 = -220 meters per minute

To find the time interval, we can subtract 2 from 8:

Δt = 8 - 2 = 6 minutes

Now we can use the formula for average acceleration:

a = Δv/Δt = (-220)/6 = -40 meters per minute squared

Therefore, the average acceleration of Train A over the interval 2 ≤ t ≤ 8 is -40 meters per minute squared.

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Answer:

it equals 2

you add one to the left making it 2x + 2 = 2x then subtract 2x from both side making the answer just 2

Answer:

4×x = 4x

Step-by-step explanation:

We need to find an expression that is equivalent to 4×x

It means we need to find the product of 4 and x.

Here, 4 is a constant number and x is a variable.

It would mean that,

4×x = 4x

Hence, the correct option is (a) i.e. 4x.

From the following sets of ordered pairs, line c, (3, 6) and (5, 1), has a negative slope.

To determine the slope of a line given two points, we can use the formula:

slope = (y2 - y1) / (x2 - x1)

where (x1, y1) and (x2, y2) are the coordinates of the two points.

If the slope is negative, it means the line is decreasing as we move from left to right, or in other words, it has a negative slope.

Let's apply the formula to each set of ordered pairs:

A. slope = (1 - 5) / (0 - 5) = -4 / -5 = 4/5 (positive slope)

B. slope = (-1 - 3) / (-4 - 2) = -4 / -6 = 2/3 (positive slope)

C. slope = (1 - 6) / (5 - 3) = -5 / 2. (negative slope)

D. This set has only one point (2, 3) and is therefore not sufficient to define a line.

Therefore, only option C has a negative slope. Option B has a positive slope. Option A has a positive slope. Option D is not sufficient to define a line.

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Answer:

(x+2)(2x+7)

Step-by-step explanation:

worked it out

When t=2+√110/4, the ball will be 50 feet  height above the ocean.

Height is the measurement of someone or something from the top to toe or the base to head.height always refers to something is mesured either its high or low.

As per the given question

Because h=-16t^2+64t+96

So when h = 50

It means -16t^2+64t+96 =50

-16t^2+64+46=0

8t^2-32t-23=0

{∆=b^2-4ac,x= -b+√∆/2a}

So, ∆=(-32)^-4×8×(-23)=1760>0

So t =2- √110/4 <0

Thus tha answer is t = 2+√110/4

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The area of the triangle is 94.9 square inches

For given question,

We have been given triangle RST has sides measuring 22 inches and 13 inches and a perimeter of 50 inches.

Let x be the third side of ΔRST

⇒ 22 + 13 + x = 50

⇒ x = 50 - 35

⇒ x = 15

Let s = sum of three sides of the triangle / 2

s = (22 + 13 + 15)/2

s = 25

Now using the formula for the area of the triangle,

A = √[s × (s-a) × (s-b) × (s-c)]

Let a = 22 inches, b = 13 inches, c = 15 inches

Substituting the values,

⇒ A = √[25 × (25 - 22) × (25 - 13) × (25 - 15)]

⇒ A = √(25 × 3 × 12 × 10)

⇒ A = √9000

⇒ A = 94.9 square inches

Therefore, the area of the triangle is 94.9 square inches

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The area of  triangle rst which have sides 22 inches and 13 inches with perimeter 50 inches is 95 square inches.

We are given that the two sides of the triangle rst are 22 inches and 13 inches respectively. Also perimeter of the triangle rst is 50 inches.

We have to find the area of  triangle to the nearest square inches.

Let the third side of the triangle rst be x.

Hence,

22 + 13 + x = 50 inch

35 + x = 50 inch

x = 50 - 35
x = 15 inches

Hence, the third side of the triangle is 15 inches.

We will use the Heron's formula here to find the area of the triangle.

Heron's formula = \(\sqrt{s(s-a)(s-b)(s-c)}\)
Here,

s = Semi- perimeter

a, b, and c are sides of the triangle.

Hence,

\(s=\frac{50}{2} \\\\s=25 inches\)

a = 22 inches

b = 13 inches

c = 15 inches

Hence,

Area of the triangle rst = \(\sqrt{25(25-22)(25-13)(25-15)}\\\\ \sqrt{25(3)(12)(10)} =\sqrt{5*5*3*3*2*2*5*2}=5*3*2\sqrt{5*2}=30\sqrt{10}\)

We know that,

\(\sqrt{10}\) ≈ 3.162277
Hence,

\(\sqrt{10} * 30\) ≈ 94.86831 ≈ 95 square inches.

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Two values have frequency 2, so both are modes. They are 5 and 6. Therefore, the mode is 5 and 6.

Given measure: 3, 5, 4, 6, 10, 5, 6, 9, 2, 13.(D) To calculate \(x_2\), first we need to sort the data in ascending order: 2, 3, 4, 5, 5, 6, 6, 9, 10, 13

Now, we need to find the median, which is the middle value of the data. Since the data has even number of values, we will calculate the mean of middle two values, that is:(5+6)/2 = 5.5 Therefore, \(x_2 = 5.5\).\( \frac{2}{x}= \) To find the value of x, we will first cross-multiply and then take the reciprocal of both sides:\[\frac{2}{x} = y \Rightarrow 2 = xy \Rightarrow x = \frac{2}{y}\] Therefore, \( \frac{2}{x}= \frac{2}{y}\).

(b) To calculate Fried m, we will use the formula: \[f_m = L + \frac{(n/2 - F)}{f} \times c\]where L is the lower limit of the modal class, F is the cumulative frequency of the class preceding the modal class, f is the frequency of the modal class, c is the class interval, and n is the total number of values.

First, we will calculate the class interval:c = (upper limit of class - lower limit of class) = (7-6) = 1 Next, we will construct a frequency table to find the modal class:| Class Interval | Frequency ||-------------------|------------|| 2-3 | 1 || 3-4 | 1 || 4-5 | 1 || 5-6 | 2 || 6-7 | 2 || 7-8 | 1 || 9-10 | 1 || 10-11 | 1 || 13-14 | 1 |The modal class is the class with highest frequency.

Here, two classes have frequency 2, so both are modes. They are 5-6 and 6-7.

Therefore, L = 5, F = 2, f = 2, n = 10, and c = 1. Substituting the values, we get:\[f_m = L + \frac{(n/2 - F)}{f} \times c = 5 + \frac{(10/2 - 2)}{2} \times 1 = 7\] Therefore, Fried m = 7.

(c) To find the mode, we look for the value(s) with highest frequency. Here, two values have frequency 2, so both are modes. They are 5 and 6. Therefore, the mode is 5 and 6.

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Answer:

12 is the largest one number of gift bags he can make. Each will have 4 gingerbread cookies and 5 candy canes

Step-by-step explanation: