3) The elevator in a large office building is not working so you start climbing the stairs. The first flight
takes you 56 seconds. The second flight takes you 62 seconds. The third flight takes you 68 seconds.
If you climb a total of ten flights, how long will it take you to climb all ten flights combined?
a.
b.
C.
1660 seconds
830 seconds
330 seconds
105 seconds
6 seconds
d.
e.

Answers

Answer 1

Answer:

Oct 20, 2019 — So how many flights does it takes for stair climbing to qualify as a workout? ... the Harvard Alumni Health study reported that climbing 10-19 flights a week (two ... But to be clear, we're not talking about the type of stair climbing you do ... of 20 seconds (about 60 steps) or a single/double flight of stairs that ca

Step-by-step explanation:


Related Questions

x+2=8-x what is the answer to this

Answers

Answer:

[tex]x + 2 = 8 - x \\ \\ \dashrightarrow \: x + x = 8 - 2 \\ \\ \dashrightarrow \: 2x = 6 \\ \\ \dashrightarrow \: x = 3[/tex]

hope helpful ;-;

Answer:

x = 3

Step-by-step explanation:

x+2=8-x what is the answer to this?

x + 2 = 8 - x

move the x to the left and the 2 on the right and change the sign  

x + x = 8 - 2

solve on both sides

2x = 6

divide the two parts by 2

x = 3

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

check

3 + 2 = 8 - 3

5 = 5

the answer is good

A person with a systolic blood pressure greater than 120 mmHg and less than or equal
to 139 mmHg is said to have prehypertension. Which inequality represents the range of
systolic blood pressure for a person with prehypertension?
a. 120 < x < 139
b. 120 < x≤ 139
C. 120 ≤x < 139
d. 120 ≤x≤ 139

Answers


A is the answer.

Explanation because if -/128

9. (-12,-62) and (-22, -62) help​

Answers

The answer is y = -62

Find the value of 7u +6 given that 3u-8=4.
simplify your answer as much as possible.

Answers

Answer:

34.

Step-by-step explanation:

The value of 7u + 6

=3u - 8 = 4

=3u = 4 + 8

=3u = 12

=3u/3 = 12/3

u = 4.

therefore u = 4

=7u + 6

=7(4) + 6

=28 + 6

=34.

(8-2)x(3+2)-1}x3 anwer in need

Answers

Answer:

(6)×(5)-1)3

6×5-3

30-3

=27

Which fraction is equivalent to fraction with numerator negative 3 and denominator 2

Answers

The equivalent fraction of -3/2 is the fraction -6/4

How to determine the equivalent fraction

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

numerator negative 3 and denominator 2

Express the fraction properly

So, we have

-3/2

Multiply the numerator and the denominator by a constant (say 2)

So, we have

-6/4

This implies that -6/4 is equivalent to 3/2

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8. At sunrise in Townville, Roger
records the air temperature for a
school project, every hour. The
graph shows the change in
temperature over time. Write a
linear function in the form y = mx +
b to represent the situation.
Temperatures
Temperature (°F)
20
16
12
8
O
4 8 12 16 20
Time (h)

Answers

On solving the provided question, we can say that the linear function that can be formed y = mx + b, y = temperature, x = time

What is linear function ?  

Two distinct but related concepts are referred to as linear functions in mathematics. A polynomial function of degree 0 or 1 is a linear function in calculus and related subjects if its graph is a straight line. Any function that depicts a straight line on a coordinate plane is said to be linear. For instance, y = 3x - 2 is a linear function since it depicts a straight line on the coordinate plane. f(x) = 3x - 2 can be used to represent the function since f(x) can be linked to y.

here,

the linear function that can be formed

y = mx + b

y = temperature

x = time

a and b = variables

for first data = 20 = 4m+b

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Makin Bread Bakery used 300 kg of flour for bread orders last month. This month, they
had less orders and used 20% less flour. How much flour did they use this month?

Answers

Using the percentage method the amount of flour used this month in the bakery for bread orders is 240 kg.

What is percentage?

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100.

The amount of flour used last month is, a = 300 kg

The percentage of flour less used is = 20%

Calculate the 20 percent of 300 kg flour -

b = 20% × 300

b = 20/100 × 300

b = 60 kg

The amount of flour used this month = a - b

The amount of flour used this month = 300 - 60

The amount of flour used this month = 240 kg.

Therefore, this month 240 kg of flour was used.

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find all three-digit numbers that meet these criteria: all digits are distinct, one digit is odd, and the sum of the digits is five.

Answers

Answer:

203, 230, 320, 302, 140, 410, 104, 401

Step-by-step explanation:

To meet the criteria, we have to think of all the ways we can use three distinct numbers, with one of the numbers being odd, which adds up to 5:

1 + 4 + 0 = 5

2 + 3 + 0 = 5

Subsequently, use the numbers we found and rearrange them to form three-digit numbers.

What is the answer to this

Answers

6 because it’s an opposite

I’m pretty sure I’m right dear^^
You just have to drag the points on number 6 vertically

Help please I am really struggling with my geometry

Answers

Answer:

A) [tex]108^{\circ}[/tex]

Step-by-step explanation:

[tex]m\angle 1+m\angle 2=180^{\circ} \\ \\ 72^{\circ}+m\angle 2=180^{\circ} \\ \\ m\angle 2=108^{\circ}[/tex]

The answer to the question is A

BD=16 and AC is the
perpendicular bisector of BD.
2x-14
B
21-2
37-x
y+3
BC=[?]
Enter

Answers

Answer:

BC = 8

Step-by-step explanation:

If AC is the perpendicular bisector of BD then

BC = CD = BD/2

BD/2 = 8

So BC = 8

Answer:

the answer is

Step-by-step explanation:

The equation 3x62x10x4 is true for all real numbers. The equation 6x22x4x1 has no solution. When do you think an equation has all real numbers as its​ solutions?

Answers

When an equation simplifies to 0=0 then it has true for all real numbers or else it does not have solution.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

3x +6 = 2x +10 +x -4

Subtract (3x+6) from both sides:

(3x +6) -(3x +6) = (2x +10 +x -4) -(3x +6)

0 = x(2 +1 -3) +(10 -4 -6)

0 = 0

0 = 0 . . . . has "all real numbers" as a solution set

6x +2 -2x = 4x +1

Subtract (4x+1) from both sides:

(6x +2 -2x) -(4x +1) = (4x +1) -(4x +1)

x(6 -2 -4) +(2 -1) = 0

0x +1 = 0

1 = 0

Does not have "all real numbers" as a solution set. There is no solution

Hence, when an equation simplifies to 0=0 then it has true for all real numbers or else it does not have solution.

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Use the image below to find y

Answers

Answer:

y = 7

Step-by-step explanation:

since the 2 triangles are congruent then corresponding angles are congruent , so

∠ R = ∠ F , that is

13y - 1 = 90 ( add 1 to both sides )

13y = 91 ( divide both sides by 13 )

y = 7

I believe my answer is y=7

which equation represents the line that psses through (2,3) and (-2,5)

Answers

The equation of line that passes through (2,3) and (-2,5) is y  = (-1/2)x + 4.

What is the equation of line that passes through the given points?

The point-slope form is expressed as;

( y - y₁ ) = m( x - x₁ )

Where m is slope, x₁ and y₁ are the coordinates of the point .

Given the data in the question;

Point 1 (2,3)

x₁ = 2y₁ = 3

Point 2 (-2,5)

x₂ = -2y₂ = 5

First, determine the slope.

Slope m = (y₂ - y₁)/(x₂ - x₁)

Slope m = ( 5 - 3 ) / ( -2  - 2)

Slope m = 2 / -4

Slope m = -1/2

Plug the slope m = -1/2 and point (2,3) into point-slope formula and simplify.

( y - y₁ ) = m( x - x₁ )

( y - 3 ) = (-1/2)( x - 2 )

y - 3 = (-1/2)x - (-1/2)2

y - 3 = (-1/2)x + 1

y = (-1/2)x + 1 + 3

y  = (-1/2)x + 4

Therefore, the equation of the line is y = (-1/2)x + 4.

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What is the value of x

Answers

Answer: 104

Step-by-step explanation:

Angles at a line are equal to 180 degrees so:

180 = 72 + (x + 4)

180 = x + 76

180 -76 = x + 76 -76

104 = x

For what value of x is the rational expression below equal to zero?
2-x+x/2+x

Options:
A. 2
B. 0
C. -1
D. -2

Answers

The value of x for which the rational expression equals to zero is -4

What is System of Linear Equation ?

An equation is said to be linear if the maximum power of the variable is consistently 1. Another name for it is a one-degree equation. A linear equation with one variable has the conventional form Ax + B = 0. In this case, the variables x and A are variables, whereas B is a constant. A linear equation with two variables has the standard form Ax + By = C. Here, the variables x and y, the coefficients A and B, and the constant C are all present.

A linear equation is one that has a degree of 1 as its maximum value. No variable in a linear equation, thus, has an exponent greater than 1. A linear equation's graph will always be a straight line.

A linear equation is an algebraic equation in which each term has an exponent of 1, and which, when plotted on a graph, always yields a straight line. It is called a "linear equation" for this reason.

The equation is

2 - x +x/2 + x = 0

⇒ x/2 = -2

⇒ x = -4

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For the data in the table does y vary directly with x? if it does, write an equation for the direct variation pleaseee!!

Answers

Yes, because it is a graph of a straight line with y = 1.625x, y changes for every value of x.

What is a Linear equation?

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.

Given, Value set for x and y.

Since it asked if the given equation is linear or not

The general formula for the line:

y = mx +c

where,

m is slope

and c is constant

m = (y₂ - y₁)/(x₂ - x₁)

in our case

m = 26 - 13 / 16 -8

m = 13/8

Thus the equation of a line:

y = 13/8x + c

putting any of the given coordinates in the given equation:

c = 0

Thus, the equation of a line

y = 1.625x

Therefore, yes, y varies for every value of x since it is a graph of a straight line y = 1.625x

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I have some extra points so I'm going to give them away BUT you have to answer this question

Make sure to add a drawing on how you answered this

If you get it right ill make you brainly,


Thank caliaquinton for the idea. =D

Answers

A graph of triangle ABC after a translation of 1 unit left and 7 units down is shown in the image attached below.

What is a translation?

In Mathematics, the translation a geometric figure or graph to the left simply means subtracting a digit from the value on the x-coordinate of the pre-image while the translation a geometric figure or graph downward simply means subtracting a digit from the value on the y-coordinate (y-axis) of the pre-image.

By translating the pre-image of triangle ABC vertically down by 7 units and horizontally left by 1 unit, the coordinates of the image of triangle A'B'C' include the following:

(x, y)                               →                  (x - 1, y - 7)

Coordinate A = (-6, 7)   →    Coordinate A' (-6 - 1, 7 - 7) = (-7, 0)

Coordinate B = (-8, 1)   →    Coordinate B' = (-8 - 1, 1 - 7) = (-9, -6)

Coordinate C = (-1, 2)   →     Coordinate C' = (-1 - 1, 2 - 7) = (0, -5)

Next, we would use an online graphing calculator to construct (plot) triangle A'B'C' on a cartesian coordinate based on its vertices after a translation.

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Which answers describe the shape below? Check all that apply.
0
A. Rectangle
B. Rhombus
C. Parallelogram
D. Trapezoid
E. Quadrilateral
F. Square

Answers

Answer:

Step-by-step explanation:

it do be a quadrilateral parallelogram and rhombus cause it do

Answer:

Step-by-step explanation:

A room measures 12 1/2 feet on each side. How many square feet of carpeting will be needed to completely cover the floor?
A) 25
B) 50
C) 144 1/4
D) 156 1/4

I have the right answer, show work please

Answers

Answer:

156 1/4

Step-by-step explanation:

Assume the room is a square.

side = 12 1/2 ft

area = (side)²

area = (12 1/2 ft)²

area = (12 1/2 ft) × (12 1/2 ft)

area = (144 + 6 + 6 + 1/4) ft²

area = 156 1/4 ft²

1) Which of the following relations are functions?

Answers

The relation which is a function among the given answer choices are Choices A and D.

Which among the given answer choices represent a function?

It follows from the task content that the answer choices which represent a function be identified as required.

By definition, a function is a relation in which case, no one input value is assigned more than one output.

On this note, for Choice A; all input values have only one output value assigned to them and for Choice D; the graph represents a quadratic function in which case, each input value, x is assigned only one output value, y.

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Which graph represent the function?

Answers

Answer:

c

Step-by-step explanation:

Calculate the integral of ze2x + y over the surface of the box in the figure below.
0<= x <= 2
0<= y <= 3
_____________

Answers

We will use the triple integral in cylindrical coordinates to calculate the integral across the surface of the box in the illustration.

The integral is given by:

[tex]∫∫∫ {ze}^{2x} + y dzdydx[/tex]

Where x, y, and z are the coordinates and the limits of integration are

[tex]0 <= x <= 2, 0 <= y <= 3, and 0 <= z <= {ze}^{2x} + y[/tex]

We can change the integral into cylindrical coordinates by using the following change of variables:

x = rcosθ

y = rsinθ

z = z

The integral becomes:

[tex]∫(0 to 2)∫(0 to 3)∫(0 to ze^(2r cosθ) + r sinθ) rze^(2r cosθ) + r^2sinθ dzdrdθ[/tex]

Although the integral is challenging to calculate, this method will assess it. The region of integration can be determined by knowing the bounds of z, which would be beneficial given that the box is in rectangular coordinates.

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Below you are given a partial Excel output based on a sample of 25 observations. Coefficients Standard Error Intercept 145 29 x1 20 5 x2 –18 6 x3 4 4 The estimated regression equation is _____. a. y = β0 + β1x1 + β2x2 + β3x3 + ε b. E(y) = β0 + β1x1 + β2x2 + β3x3 c. ŷ = 29 + 5x1 + 6x2 + 4x3 d. ŷ = 145 + 20x1 – 18x2 + 4x3

Answers

The estimated regression equation is d. ŷ = 145 + 20x₁ – 18x₂ + 4x₃

This equation is obtained from the coefficients given in the table. It is the equation that best predicts the value of the dependent variable (y) based on the values of the independent variables (x₁, x₂, and x₃).

The equation is in the form of y = β₀ + β₁x₁ + β₂x₂ + β₃x₃ + ε, where β₀, β₁, β₂, and β₃ are the coefficients of the independent variables and ε is the error term. These coefficients represent the change in the dependent variable for a unit change in the independent variable, holding all other independent variables constant.

From the table, we can see that the value of β₀ = 145, which represents the predicted value of y when all independent variables (x₁, x₂, and x₃) are equal to zero.

The value of β₁ = 20 represents the change in the predicted value of y for a unit change in x₁, holding x₂ and x₃ constant. Similarly, the value of β₂ = -18 represents the change in the predicted value of y for a unit change in x₂, holding x₁ and x₃ constant, and the value of β₃ = 4 represents the change in the predicted value of y for a unit change in x₃, holding x₁ and x₂ constant.

So, the estimated regression equation is: ŷ = 145 + 20x₁ – 18x₂ + 4x₃.

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In how many years a sum of money doubles at the rate of 8%?​

Answers

Given,
Rate=8%
Principle= let it be x
Amount = 2x
Interest = let it be x

Now,
I=(PTR)/100
100x=x*8*T
T= 100x/x*8
T = 100/8 ( x and x of 100 get cut)
T = 12.5 years




Full process should be done.

Answer:

  about 9 years

Step-by-step explanation:

You want to know the doubling time for money earning an interest rate of 8%.

Rule of 72

The rule of 72 tells you the doubling time is about ...

  72/(interest rate %) = 72/8 = 9 . . . . years

The sum will double in about 9 years.

__

Additional comment

The actual period will depend on the way interest is compounded. When compounded annually, the time is ...

  log(2)/log(1.08) ≈ 9.01 . . . years

Compounded monthly, the time is ...

  log(2)/(12·log(1 +.08/12)) ≈ 8.69 . . . years

At a run​ festival, 5/7 of the runners are women. If there are 1050 ​runners, how many are​ women?

Answers

Answer: 750

Step-by-step explanation:

5/7 = women

2/7 = men (to get 2/7, 7/7 - 5/7 and you get 2/7)

5/7 x 1050

= 5 x 1050/7

= 5250/7

=750

The / means divide

If one For loop is nested within another, then the counter variables for the two loops should be different.
True or False

Answers

You can use the same name (identifier). It may be a different object. They both loop will not affect each other.

Inside the inner or second loop, there is no way to refer to the object used in the first loop (unless you make special bread for that, as by providing a pointer to it).

This is Normally bad style, is prone to confusion, and should be avoided.

The objects are different only if the inner one is defined alone, as with the int I you have shown. If the same name is used without shaping a new object, the loops will use the same object and will interfere with each other.

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1. Solve for BC using Law of Cosines. Round to the nearest tenth when necessary.

Answers

Using cosine law in the triangle given, the length of BC is 32 units

What is Law of Cosine

The law of cosines (also known as the cosine formula) is an equation that relates the lengths of the sides of a triangle to the cosine of one of its angles. It states that:

a² = b² + c² - 2(b)(c) Cos(A)

In the given problem, the data;

AB = 29AC = 23BC = ?angle A = 75°

Substituting the values into the formula and solve for BC;

BC² = 29² + 23² - 2(29)(23) Cos 75

BC² = 1024.735393

BC = √1024.735393

BC = 32.01

BC ≈ 32

The length of side BC in the triangle is 32 units

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Count the number of different functions with the given domain, target and additional properties
(a) f(0,1}{0,1).
(b) f: (0,1}{0,1). The function f is one-to-one
(c) f. (0,1)5(0,1)
(d) f (0,135 (0,1). The function f is one-to-one

Answers

The number of different functions with the given domain, target and additional properties is as follows:

(a) There are infinitely many different functions, as there is no additional property given that could have the domain (0,1) and the target {0,1}.

(b) The only one-to-one function with the domain (0,1) and the target {0,1} is the identity function, f(x) = x. The additional property is that the function is one-to-one.

(c) The function f has a target of and a domain of (0,1) and (0,1). There are an infinite number of possible functions that could have this domain and target because no additional property is provided.

(d) There are infinitely many different one-to-one functions that could have the domain (0,1) and the target (0,1).

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