Please help me solve

Answer:

1. mileage of the bike = 40Km

2. petrol needed to cover 320Km = 8L

The statement that correctly represents the distance between points E and F is

The distance between points measured as d between two points in the x y z coordinate system is given by

d = √{(x₂ - x₁)² + (y₂ - y₁)² + (z₂ - z₁)²}

From the graph point E = (0, 0, 5) and F = (0, 6, 5)

comparing the points to (x, y, x), the points are substituted and it written as

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Answer:

the answer is the second

Step-by-step explanation:

I took the quiz

The statement that least-squares solution of a x = b is the vector in the column space of a closest to b  is; true

One  method for computing a least-squares solution of Ax = b is;

Now, If b is in the column space of A then it tells us that there is at least one exact solution to the system Ax = b. In this case, it means that every solution to the system minimizes |Ax − b| (makes it zero) and as such  is a least squares solution.

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The group that contains numbers that all round most closely to 1 is group 2 (10/11, 5/6, 7/9,)

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

In this case, it should be noted the group 2 that has 10/11, 5/6, and 7/9 are close to 1.

Therefore, the correct option is B.

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Number of sides = 13, sum of Interior angles = 1980°, the measure of one Interior angle = 152.30°, sum of exterior angles = 360°, and the measure of one exterior angle = 27.69°.

A polygon is given in the figure

According to the given question, the required solution would be as:

Number of sides = 13

Interior angles of a polygon = (sides - 2) × 180°

In this case, the number of sides is 13

Sum of Interior angles = (13 - 2) × 180

Sum of Interior angles = (11) × 180

Sum of Interior angles = 1980°

the measure of one Interior angle = 1980°/13

the measure of one Interior angle = 152.30°

The sum of exterior angles is always 360° in the regular polygon.

Sum of exterior angles = 360°

the measure of one exterior angle = 360°/13

the measure of one exterior angle = 27.69°

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The equation is y = 300x + 1,750. And the total cost after 1 hour and 20 hours of work will be $2,050 and $7,750, respectively.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

A lawyer charges a proper expense for an underlying gathering and an hourly charge for the entire hours worked after this gathering. She charges $1750 for an underlying gathering and $300 consistently worked.

Let 'x' be the number of hours and 'y' be the total cost. Then the equation is given as,

y = 300x + 1750

The total cost after 1 hour of work will be

y = 300 (1) + 1,750

y = 2,050

The total cost after 20 hours of work will be

y = 300 (20) + 1,750

y = 7,750

The equation is y = 300x + 1,750. And the total cost after 1 hour and 20 hours of work will be $2,050 and $7,750, respectively.

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Answer: 500

Step-by-step explanation:

$2000

$45,000 divided by 90 = 500

It will take her 500 weeks to pay $45,000'

Hope this helps

The values of the exponential function are f(1) = 1/12, f(-1) = 12 and f(1/2) = √1/12

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

f(x) = (1/12)^x

Also from the question, we have the following x values

f(1), f(-1) and f(1/2)

This means that x = 1, -1 and 1/2

Substitute x = 1, -1 and 1/2 in the equation f(x) = (1/12)^x

So, we have the following representations

f(1) = (1/12)¹ = 1/12

f(-1) = (1/12)⁻¹ = 12

f(1/2) = (1/12)¹/² = √1/12

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First picture answer:

⇒Sum of interior angles of a triangle is equal to 180°

⇒This means that ∠D+∠E+∠F=180°

⇒∠D is (5x-2)°,∠E is (9x+3)°,∠F is (11x-21)°

⇒Plug in the values of the angles in the general equation above.

[tex](5x-2)+(9x+3)+(11x-21)=180\\[/tex]

⇒Group the like terms together and simplify.

[tex]5x+9x+11x-2+3-21=180\\25x-20=180\\25x=180+20\\25x=200\\\frac{25x}{25} =\frac{200}{25} \\x=8[/tex]

⇒x=8°

________________________________________________________

Second picture answer:

⇒If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.

⇒ ∠C is the exterior angle.

⇒ ∠A and ∠B are the interior angles.

The above statement simply means

∠C=∠A+∠B

⇒ Given that ∠A is (13x-11)°

∠B is(4x+1)°

∠C is (18x-15)°

⇒Plug in the values of the angles and solve for x.

[tex](18x-15)=(13x-11)+(4x+1)\\[/tex]

⇒Group the like terms and solve.

[tex]18x-13x-4x=-11+1+15\\x=5[/tex]

⇒ x=5°

The equation of parabola for the given statement is: [tex]x^{2} = -60y[/tex]

The locus of points where point moves under a restriction that its distance from a fixed point Focus(F) and fixed line Directrix always remain constant

Solution: here focus of parabola is on -ve y axis so we will take general equation of parabola whose focus is on -ve y axis and directrix will be above x axisi.e[tex]x^{2} =-4ay[/tex]

here a is the distance between vertex and focus and here vertex is origin so by distance formula it comes out to be a = 15

put back in above equation we get its equation[tex]x^{2} = -60y[/tex]which is our required equation of parabola.

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The required percentage change in the number of teen births between 2000 and 2015 is 52.5%.

Given that,
In 2000, there were 47,000 teen births in the United States. In 2015, there were 22,300 teenage births. The percent change in the number of teen births between 2000 and 2015 is to be determined.

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
Number of teens in the year 2000 = 47,000
Number of teens in the year 2015 = 22300
Percentage change = 47000-22300/47000 × 100 = 52.5%

Thus, the required percentage change in the number of teen births between 2000 and 2015 is 52.5%.

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It is TRUE to state that w/ a discount factor less than 1, value iteration is guaranteed to converge.

The discount factor ranges from 0 to 1. To represent the importance of a reward R that happens N steps in the future from the current state, multiply it by γⁿ. Consider γ= 0.9 and a reward R = 10 that is three steps ahead of our current condition.

Hence, it is correct to indicate that value iteration is assured to converge if the discount factor 0 < γ < 1.

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Full Question:

For an infinite horizon MDP w/ a finite # of states and actions and w/ a discount factor γ that satisfies 0 < γ < 1, value iteration is guaranteed to converge.

a. true

b. false

The percentage she spends on books from her total edducational expenses is 0.17

What is Percentage?

A percentage is a fraction of a whole represented as a number between 0 and 100. Nothing is zero percent, everything is 100 percent, half of everything is fifty percent. To calculate a percentage, divide the share of the total by the total and multiply by 100.

Solution:

Assuming there are only these two expenses on education,

the total expenses are 1100 + 225 = $1325

amount the student pays on books = $225

Percentage = (225/1325) * 100

Percentage = 16.98% = 17% (approx)

So, the final answer is 0.17

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The ratio of the area of the two squares is 9:16.

A square has four corners and is a closed, two-dimensional (2D) object. A square has equal and parallel sides on all four sides.

A square is a closed object with four sides that are all the same length, and its interior angles are all 90 degrees. A square can have many different characteristics. The following list includes some of a square's key characteristics.

If it is square:

The ratios of the sides of two squares = 3:4

Let the common multiple of the above ratio be x.

So, side of one square = 3x

and side of the other square = 4x

Area of square = (side)²

Area of square with side 3x = (3x)² = 9x²

Area of square with side 4x = (4x)²= 16x²

Ratio of the areas of the two squares = Area of square with side 3x/Area of square with side 4x = 9x²/16x² = 9/16 = 9:16

Therefore, the ratio of the area of the two squares is 9:16.

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The expression which is equivalent to rm ÷ rn exists rm − n.

A mathematical expression is a finite combination of symbols that is well-formed in accordance with context-specific rules.

A mathematical expression is a phrase that includes at least two numbers or variables, at least one math operation, and the expression itself. Any one of the following mathematical operations can be used. A sentence has the following structure: Number/variable, Math Operator, Number/Variable is an expression.

Combining operators, constants, and variables creates an expression. One or more operands, 0 or more operators, and a value can all be part of an expression.

Let the expression be rm ÷ rn

[tex]$=\frac{r m}{r n}=\frac{m}{n}$[/tex]

simplifying the above equation, we get

[tex]$r^m \div r^n$[/tex]

[tex]$=\frac{r^m}{r^n}=r^{m-n}$[/tex]

Therefore, the correct answer is option A. rm − n.

The complete question is:

Which expression is equivalent to rm ÷ rn? (4 points)

A. rm − n

B.rm + n

C. rm ⋅ n

D.rm ÷ n

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Answer:3ta+5a

Step-by-step explanation:

just times it, its that easy

Answer:

Step-by-step explanation:

The answer is C.

1 minute = 11/2 pounds

a day= 1440 minutes = 11/2 × 1440 = 7920 pounds

-0.25 is the z-score of a person who scored 80 on the exam.

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data

Given,

On a standardized exam, the scores are normally distributed

mean is 85 and a standard deviation is 20.

We need to find z-score of a person who scored 80 on the exam.

Z=x-μ/σ

x=80, μ=85 and σ=20

Z=80-85/20

Z=-5/20

Z=-1/4

Z=-0.25

Hence, -0.25 is the z-score of a person who scored 80 on the exam.

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The options that are partial products for 43 × 17 include:

B. 21

E. 400

We want to find the partial products of 43 x 17

Since 43 = 40 + 3

and 17 = 10 + 7

Then

43 x 17 = (40 + 3) x (10 + 7)

We find all the partial products by multiplying one term of the first addition with one term of the second:

43 x 17 = (40 + 3) x (10 + 7)

= (40 x 10) + (40 x 7) + (3 x 10) + (3 x 7)

= 400 + 280 + 30 + 21

The options are B and E.

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Applying Side-side-side (SSS), the two-column proof that explains why ∠T ≅ ∠S is shown below.

The side-side-side (SSS) postulate states that two triangles that have all their three corresponding sides equal are definitely congruent triangles.

The two-column proof that shows that ∠T ≅ ∠S is explained below:

Statement                                  Reason                                                  

1. U is the midpoint of ST          1. Given

2. RT ≅ RS                                 2. Given

3. TU ≅ SU                                3. Definition of a midpoint

4. UR ≅ UR                                4. Reflexive property

5. ΔTUR ≅ ΔSUR                      5. Side-side-side (SSS)

6. ∠T ≅ ∠S                                6. CPCTC

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Answer:

[tex]\large\begin{array}{|l|l|}\cline{1-2}\sf Statement&\sf Reason\\\cline{1-2}1.\;\textsf{$U$ is the midpoint of $ST$}&1.\;\sf Given\\\cline{1-2}2.\;RT \cong RS&2.\; \sf Given\\\cline{1-2}3.\;TU \cong SU & 3.\; \sf De\:\!finition\;of\;a\;midpoint\\\cline{1-2}4.\;UR=UR&4.\;\sf Reflexive\;property\\\cline{1-2}5.\; \triangle TUR \cong \triangle SUR&5.\;\sf Side-Side-Side\;(SSS)\\\cline{1-2}6.\;\angle T \cong \angle S&6.\;\sf CPCTC\\\cline{1-2}\end{array}[/tex]

Step-by-step explanation:

Midpoint

The point that is halfway between the endpoints of the line segment.

Reflexive Property

For every number a:

Side-Side-Side (SSS) Congruence Theorem

If all three sides of one triangle are equal to all three corresponding sides of another triangle, then the two triangles are congruent.

Corresponding parts of congruent triangles are congruent (CPCTC)

If two or more triangles are congruent, their corresponding angles and sides are congruent.

[tex]\large\begin{array}{|l|l|}\cline{1-2}\sf Statement&\sf Reason\\\cline{1-2}1.\;\textsf{$U$ is the midpoint of $ST$}&1.\;\sf Given\\\cline{1-2}2.\;RT \cong RS&2.\; \sf Given\\\cline{1-2}3.\;TU \cong SU & 3.\; \sf De\:\!finition\;of\;a\;midpoint\\\cline{1-2}4.\;UR=UR&4.\;\sf Reflexive\;property\\\cline{1-2}5.\; \triangle TUR \cong \triangle SUR&5.\;\sf Side-Side-Side\;(SSS)\\\cline{1-2}6.\;\angle T \cong \angle S&6.\;\sf CPCTC\\\cline{1-2}\end{array}[/tex]

Answer:

[tex]\huge\boxed{\sf x = 3}[/tex]

Step-by-step explanation:

f(x) = 3x - 5

Given that, f(x) = 4

Put it in the above equation.

4 = 3x - 5

Add 5 to both sides

4 + 5 = 3x

9 = 3x

Divide 3 to both sides

3 = x

x = 3

[tex]\rule[225]{225}{2}[/tex]

Answer:

first graph

Step-by-step explanation:

x > n

the graph will have an open circle at the value n , indicating that x cannot equal n ( note solid circle if x ≥ n )

the arrow from n will point in the right direction, indicating values of x greater than n.

the graph representing x > n is the first graph

The number of periods of the function y = sinx are there between -10π < 0 ≤ 6π is 8.

The given trigonometric function is y=sinx.

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Here, the interval is -10π < 0 ≤ 6π

Graph the trigonometric function using the amplitude, period, phase shift, and vertical shift.

Amplitude: 1

Period: 2π

Phase Shift: None

Vertical Shift: None

Plot (0, 0), (π/2, 1), (π, 0), (3π/2, -1) and (2π, 0)

Therefore, the number of periods of the function y = sinx are there between -10π < 0 ≤ 6π is 8.

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The scenario with the greater speed is scenario 1, then the correct option is C

"Scenario 1 because the slope is 60"

Remember that speed is defined by:

distance = speed*time

On scenario 2 we have the linear equation:

y = 50*x

Where y is distance and x is the time in hours, so the speed is 50 miles per hour.

If we look at the graph, we can see a proportional relationship also of the form y = k*x

Where the slope k is the speed.

The first graphed point is (1, 60), then:

60 = k*1

60/1 = k

So here the speed is 60 miles per hour.

Then the correct option is C, the speed in scenario 1 is greater.

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Converting 195 ml to liters using unit fractions is 39/200.

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

It should be noted that 1000 millimeters = 1 liters

Therefore, 195 ml to l will be:

= 195 / 1000

= 39/200

Therefore, it is 39/200.

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The rounding up of all the numbers 36,892 81,055 7,908 126,388 to the nearest 10000, 1000 and 100 are as shown below.

To round up a number to the nearest 10000, what we do is to check the thousands digit to decide whether to round up or round down.

To round up a number to the nearest 1000, what we do is to check the hundreds digit to decide whether to round up or round down.

To round up a number to the nearest 100, what we do is to check the tens digit to decide whether to round up or round down.

1) 36,892 to the nearest 10000 is; 40000

81,055 to the nearest 10000 is; 80000

7,908 to the nearest 10000 is; 10000

126,388 to the nearest 10000 is; 130000

2) 36,892 to the nearest 1000 is; 37000

81,055 to the nearest 1000 is; 81000

7,908 to the nearest 1000 is; 10000

126,388 to the nearest 1000 is; 126000

3) 36,892 to the nearest 100 is; 36900

81,055 to the nearest 100 is; 81100

7,908 to the nearest 100 is; 7900

126,388 to the nearest 100 is; 126400

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Awnser : 240km

Step-by-step explanation: