Round 4709.94107458 to the nearest whole number

Answer:

c

Step-by-step explanation:

In geometry, an equilateral triangle is a triangle in which all three sides have the same length.

Answer: I believe the answer would be as follows:

8.431 grams

5.46 seconds

980 meters

900 miles

Step-by-step explanation:

it would first be which has the largest number after the decimal point, so if there’s three it goes first (0.12*3*). Then you would pick the one that is the smallest form of measurement, which would be meters in this case.

Hope this helped!

Answer:

5040 ways

Step-by-step explanation:

7! = 5040

7 choices on day 1

6 choices on day 2

5 choices on day 3

4 choices  on day 4

3

2

1                                 7 x 6 x 5 x 4 x 3 x 2 x1 = 5040

Answer:

7

Step-by-step explanation:

Given the information from the question:

[tex]fg - f = f \times g - f[/tex]

Next we can use the order of operations to find the value of the expression.

[tex]fg - f = - 6 \times - 1 - ( - 1) \\ = 6 - ( - 1) \\ = 6 + 1 \\ = 7[/tex]

The worth of the share of stock is $[tex]34\frac{3}{4}[/tex].

A fraction is a non-integer that is made up of a numerator and a denominator. The numerator is the number above and the denominator is the number below.

A mixed fraction is a fraction that is made up of a whole number and a proper fraction.  A proper fraction is a number where the numerator is less than the denominator.

The worth of the stock now = purchase price + increase in the share price

28 1/8 + 6 5/8

[tex]34 \frac{1 + 5}{8}[/tex]

[tex]34\frac{6}{8}[/tex] = [tex]34\frac{3}{4}[/tex]

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Answer: the first one and the third one

Step-by-step explanation:

The prime polynomials from the polynomials are:

1. [tex]x^4[/tex] + 3y²x - 1 and 3. x² - 9x + 3.

Options 1 and 3 are the correct answer.

We have,

A prime polynomial is a polynomial that cannot be factored into a product of two polynomials with integer coefficients.

Let's check each expression to see if it is a prime polynomial:

[tex]x^4[/tex] + 3y²x - 1:

This expression cannot be factored further, so it is a prime polynomial.

9y + 4y² + 12y³:

This expression can be factored as y(9 + 4y + 12y²), so it is not a prime polynomial.

x² - 9x + 3:

This expression cannot be factored further, so it is a prime polynomial.

x² - 3x - 10:

This expression can be factored as (x - 5)(x + 2), so it is not a prime polynomial.

x³ - 512y³:

This expression can be factored as (x - 8y)(x² + 8xy + 64y²), so it is not a prime polynomial.

Thus,

The prime polynomials are:

1. [tex]x^4[/tex] + 3y²x - 1 and 3. x² - 9x + 3.

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f(x) = 2 * (1/2)^x

f(3) = 2 * (1/2)^3

f(3) = 2 * (1/2 * 1/2 * 1/2)

f(3) = 2 * 1/8

f(3) = 2/8

f(3) = 1/4

Hope this helps!

Answer:

[tex]f(x) = 2 \times ( { \frac{1}{2} })^{x} \\ \\ f(3) = 2 \times ({ \frac{1}{2}})^{3} \\ \\ = 2 \times \frac{1}{8} \\ \\ f(3) = \frac{1}{4} = 0.25[/tex]

Answer: -4, -3, -2

Step-by-step explanation:

By inspection, we know [tex]x=-2[/tex] is a root.

We can thus rewrite the equation as

[tex](x+2)\left(\frac{x^3 + 9x^2 + 26x+24}{x+2} \right)=0\\\\(x+2)(x^2 + 7x+12)=0\\\\(x+2)(x+3)(x+4)=0\\\\x=-4, -3, -2[/tex]

The derivative of the given equation is [tex]\frac{dg(x) }{dx} = {e^{5x^{2} - 4x} } \,[/tex].

According to the statement

we have given that the statement and we have to find the derivative of that term.

So, We know that the

The given equation is

[tex]g(t) = \int\limits^x_4 {e^{5t^{2} - 4t} } \, dt[/tex]

Now find the derivative of that term

We find the derivative of the given term is with the help of the FTC.

And then

[tex]\frac{dg(x) }{dt} = {e^{5x^{2} - 4x} } \, \frac{dx}{dx}[/tex]

Then the equation become is

[tex]\frac{dg(x) }{dx} = {e^{5x^{2} - 4x} } \,[/tex]

So, this is the derivative of the given equation.

So, The derivative of the given equation is [tex]\frac{dg(x) }{dx} = {e^{5x^{2} - 4x} } \,[/tex].

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Answer:

(-3,1)

Step-by-step explanation:

9x+8y=-19

7x+9y=-12

I'll assume the question is to find the solution to these equations.  The solution will be the point (x,y) where the two lines intersect.  The intersection is the one point that satisfies both equations (the smae value of (x,y) works in both.

We can either solve matematically of graph to find the intersection.  I'll do both, and hope the answers are identical.

Matematically

Rearrange either equation to isolate one of the variables (either x or y).  I'll take the second and isolate x:

7x+9y=-12

7x = -9y - 12

x = (-9y - 12)/7

Now use this definition of x in the other equation:

9x+8y=-19

9((-9y - 12)/7) + 8y = -19

(-81y - 108)/7 + 8y = -19

-81y - 108 + 56y = - 133

-25y = -25

y = 1

If y = 1, then:

9x+8y=-19

9x+8(1)=-19

9x = -27

x = -3

The solution is (-3,1)

Graphing

Graph both lines and look for the intersection.  The attached graph shows the lines cross at (-3,1).

The solution, bu both approachjes, is (-3,1)

Modern numbers are the ten numerical digits used in constructing other numbers.

Modern numbers are also called Arabic numerals. They are the ten numerical digits:

0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

Uses of modern numbers;

Hence, modern numbers are the ten numerical digits used in constructing other numbers.

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Step-by-step explanation:

the highest or greatest or largest common factor is the product of the prime factors the numbers have in common :

540 ÷ 2 = 270

270 ÷ 2 = 135

135 ÷ 2 no

135 ÷ 3 = 45

45 ÷ 3 = 15

15 ÷ 3 = 5

5 ÷ 3 no

5 ÷ 5 = 1

540 = 2² × 3³ × 5¹

360 ÷ 2 = 180

180 ÷ 2 = 90

90 ÷ 2 = 45

45 ÷ 2 no

45 ÷ 3 = 15

15 ÷ 3 = 5

5 ÷ 3 no

5 ÷ 5 = 1

360 = 2³ × 3² × 5¹

so, the HCF = 2² × 3² × 5¹ = 4×9×5 = 180

(1)

to satisfy the condition max. 180 visitors can be invited.

(2)

540 / 180 = 3

so, every visitor can receive 3 pieces of chicken.

and 360 / 180 = 2 cups of drink.

If the probability of obtaining success is 0.3 and the value of n is 9 then the probability at the value of x be 3 is 0.3811.

Given that the value of n is 9 and the value of p is 0.3.

We are required to find the probability when the value of x is equal to 3.

Probability is the calculation of chance of happening an event among all the events possible.It lies between 0 and 1.

Probability=Number of items/total items.

Binomial probability is basically the probability of exactly x successes on n repeated trials in an experiment which has two possible outcomes.

[tex](a+b)^{n}[/tex]=[tex]nC_{0}a^{0} b^{n-0} +nC_{1}a^{1} b^{n-1} +................nC_{n}a^{n} b^{0}[/tex]

We have to find the value when n=9, p is 0.3 and r=3.

=[tex]9C_{3} (0.3)^{3} (1-0.3)^{6}[/tex]

=9!/3!6!*0.027*0.16807

=84*0.00453789

=0.381182

Hence if the probability of obtaining success is 0.3 and the value of n is 9 then the probability at the value of x be 3 is 0.3811.

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The correct option is B.

If the amount spent on snacks per month by all his classmates is , that amount would be $38.

Mean can be defined as the sum of all the observations in a sample, divided by the total number of observations. Mathematically, it is expressed as:

Mean = sum of observations / total number of observations

Amount of money everyone spends buying snacks each month is equal to a mean of $38.

What this means is that the average amount of money spent by everyone is equal to $38.

Therefore,

If the amount spent on snacks per month by all his classmates is leveled, that amount would be $38.

So,

We can conclude by saying, if one classmate paid above $38, and another paid below $38, it will be nullified by leveling the amount paid by all the classmates while calculating the mean.

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I understand that the question you are looking for is:

After conducting a survey of all his classmates, ryan discovers that the amount of money everyone spends buying clothes each month has a mean of $46. what does the mean say about the amount his classmates spend on clothes?

A. Half of his classmates spend exactly $38 per month buying snacks.

B. If the amount spent on snacks per month by all his classmates is leveled, that amount would be $38.

C. The majority of his classmates spend $38 per month buying snacks.

D. Half of his classmates spend more than $38 per month buying snacks

Answer:

  2 hours, 150 miles

Step-by-step explanation:

The relation between time, speed, and distance can be used to solve this problem. It can work well to consider just the distance between the drivers, and the speed at which that is changing.

Jason got a head start of 20 miles, so that is the initial separation between the two drivers.

Jason is driving 10 mph faster than Britton, so is closing the initial separation gap at that rate.

The relevant relation is ...

  time = distance/speed

Then the time it takes to reduce the separation distance to zero is ...

  closure time = separation distance / closure speed = 20 mi / (10 mi/h)

  closure time = 2 h

Britton will catch up to Jason after 2 hours. In that time, Britton will have driven (2 h)(75 mi/h) = 150 miles.

__

Additional comment

The attached graph shows the distance driven as a function of time from when Britton started. The distances will be equal after 2 hours, meaning the drivers are in the same place, 150 miles from their starting spot.

Answer: y=-3m+13

Step-by-step explanation:

y=mx+c

m is the gradient

y=-3x+c

We know one point

-2=3(-5)+c

Solve for c

-2=-15+c

13=c

y=-3m+13

Answer:

y = 5x - 6

Step-by-step explanation:

We are given a line, which is parallel to the line y=5x+3.

We also know that this line passes through the point (3,9).

We want to find the equation of this line.
Parallel lines have the same slopes, yet different y intercepts.
So, let's find the slope of the line y=5x+3.

The line is written in slope-intercept form, which is y=mx+b, where m is the slope and b is the value of y at the y intercept.

As 5 is in the place of where the slope (m) is, 5 is the slope of the line.

It is also the slope of the line parallel to it (which is the line we are trying to find).

We can write the equation of this new line in slope-intercept form as well, which is also the format your system wants.

Before we write the equation of the line in slope-intercept form, we can write it in point-slope form, then convert it into slope-intercept form.

Point-slope form is [tex]y-y_1=m(x-x_1)[/tex], where m is the slope and [tex](x_1, y_1)[/tex] is a point.

As we have already found the slope (5), we can immediately plug it into the formula.

[tex]y-y_1=5(x-x_1)[/tex]

Now, remember that we were also given a point, that passes through the line. This point is (3,9).

We can use its values in the formula.

Substitute 3 as [tex]x_1[/tex] and 9 as [tex]y_1[/tex].

y - 9 = 5(x-3)

Now, we have written the line in point-slope form.

However, we're not done yet; remember that we want it in slope-intercept form.

We can solve the equation for y to get slope-intercept form.

So, on the right, open up the parentheses and distribute 5 to both x and -3.

y - 9 = 5x - 15

Now add 9 to both sides.

y = 5x - 6

(a) The radius of the small sphere is 2 centimeters.

(b) The measure of the angle XAB is approximately 36.870°.

(c) The area of the shaded region is approximately 3.107 square centimeters.

Herein we have a geometric system formed by three big semicircles and a small circle, whose geometric diagram is attached below. (a) The relationship between the semicircles and the circle is represented by two formulae:

8² + h² = (8 + r)²     (1)

h + r = 8                  (2)

Where r is the radius of the small circle.

Then, we solve the system:

8² + (8 - r)² = (8 + r)²

64 + 64 - 16 · r + r² = 64 + 16 · r + r²

32 · r = 64

r = 2

The radius of the small sphere is 2 centimeters.

(b) The measure of the angle XAB is found by trigonometric relations:

cos m ∠ XAB = OA / AX

cos m ∠ XAB = 8 / 10

m ∠ XAB ≈ 36.870°

The measure of the angle XAB is approximately 36.870°.

(c) The area of the shaded region is the area of the triangle minus the area of the three circular sections:

A = 0.5 · (16 cm) · (10 cm) · sin 36.870° - (36.870° /180) · π · (8 cm)² - 0.5 · (106.260° / 180) · π · (2 cm)²

A ≈ 3.107 cm²

The area of the shaded region is approximately 3.107 square centimeters.

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The time he saves when walking diagonally is 8 seconds

A rectangle has opposite sides equal to each other.

The angles are equal.

Therefore,

perimeter of a rectangle = 2l + 2w

where

Therefore,

distance of the diagonal  =√ 50² + 120²

distance of the diagonal  = √2500 + 14400

distance of the diagonal = √16900

distance of the diagonal = 130 feet

distance if he follows the length of the rectangle = 50 + 120 = 170 feet

Hence,

Time spent diagonally

5 = 130 / t

t = 130 / 5

t = 26 seconds

Time spent along the perimeter

5 = 170 / t

t = 170 / 5

t = 34 secods

Therefore,

Time he will save by walking diagonally = 34 - 26 = 8 seconds

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In the case above:

(a) If there is an increased from 64 to 196, then the variance decreases.

(b) If there is a decreased from 784 to 49, then the variance increases.

Standard Error is known to be the square root of the variance. if a given variance increases, so its standard error also.

Since the standard error takes place in the denominator, hence, if the standard error increases, the variance goes up.

Therefore, In the case above:

(a) If there is an increased from 64 to 196, then the variance decreases.

(b) If there is a decreased from 784 to 49, then the variance increases.

See full question below

A certain type of thread is manufactured with a mean tensile strength of 78.3 kilograms and a standard deviation of 5.6 kilograms. How is the variance of the sample mean changed when the sample size is (a) increased from 64 to 196? (b) decreased from 784 to 49?

What is the variance about?

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The area that the dog can wander based on the information provided will be 931π.

From the information, we are told that the dog dog is attached to a 35-foot rope fastened to the outside corner of a fenced-in garden that measures 28 feet by 36 feet.

In this case, the dog is in an outside corner. The dog can trace 3/4 of a circle when it starts walking in a circle away form the wall.

The area that the dog can wander will be:

= 3/4(π35²) + 1/4(π(35 - 28)²)

= 3/4π(35)² + 1/4π(7)²

= (3/4 × 1225)π + (1/4 × 49)π

= 918.75π + 12.25π

= 931π

Therefore, the area that the dog can wander based on the information provided will be 931π.

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Answer:

B

Step-by-step explanation:

If x and y vary inversely, then as x increases, y decreases. That eliminates answers A, C, and D.

Answer: B

102 degrees

Step-by-step explanation:

Angles in a quadrilateral add to 360 degrees.

y = 360 - (120 + 85 + 53)

y = 360 - 258

y = 102 degrees

Answer:

a) height =14in

b) height =27cm

Step-by-step explanation:

a)

[tex]v = \frac{l \times w \times h}{3} [/tex]

where,

Substitute these values and solve for h.

[tex]h = 3 \frac{v}{lw} \\ h = 3. \frac{448}{8.12} = 14[/tex]

b)

[tex]v = \frac{1}{3} ah[/tex]

where, a=area of the base

plug in the given values and solve for h

[tex]v = \frac{1}{3} ah \\ 3v = ah \\ h = \frac{3v}{a} \\ h = \frac{3(270)}{30} \\ h = 27cm[/tex]

Answer: 4

Step-by-step explanation:

2.03 / 7 = 0.29

1.16 / 0.29 = 4

Mason will get 4 oranges on spending 1.16$

What is Rate of change?

A rate is anything that can be measured over time. Common rates include velocity (which is the rate of distance traveled), power (rate of work being done), etc. All these have one thing in common which is that they are all divided by the amount of time it took to obtain a certain measurement.

Here it is given that a grocery store sells a bag of 7 oranges for $2.03,

Now firstly let calculate for 1$ how many oranges Mason get by dividing 7 with 2.03$ :

For 1$ we get = 7/2.03 = 3.5 oranges

Therefore to calculate for 1.16 $ amount spend by Mason will be multiplication of 3.5 with 1.16$ : 3.5 x 1.16 = 4 oranges

Therefore, Mason will get 4 oranges on spending 1.16$

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Answer:

7.

Step-by-step explanation:

Calculate the means for each group:

mean of 0-4 is 2

mean of 5-9 is 7

mean of 10-14 is 12

Mean = (Sum of frequencies * mean) / sum of frequencies

= required mean = [ (2(2) + 1(7) + 2(12)] / (2+1+2)

=  35/ 5

= 7.

3.35 feet have a maximum inaccuracy of 0.005 feet.

The correct option is C.

When students consistently commit mistakes, an approach known as error analysis is frequently employed to determine the root of the problem. Reviewing student work is the first step in the process, after which misunderstood patterns are sought out. Mathematics mistakes can be conceptual, procedural, or factual, and they can happen for a variety of reasons.

The window is 3.35 feet long.

Find the biggest error you can

Half of the measuring unit is considered to be the maximum amount of measurement error.

3.35 feet are calculated to the nearest centimeter, or 0.01 feet

Consequently, the largest conceivable error is equal to half of the measurement unit.

= .01/2

= .005

Therefore, the maximum inaccuracy for 3.35 feet is 0.005 feet.

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The volume of the total chocolate is 80 ml, where as the volume of each chocolate is 13.33 ml.

An equation is an expression that shows the relationship between two or more variables and numbers.

Let x represent the volume of each chocolate. Hence:

6 * volume of each chocolate = (380 - 300) ml

6x = 80

Divide both sides of the equation by 6:

x = 13.33 ml

The volume of the total chocolate is 80 ml, where as the volume of each chocolate is 13.33 ml.

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Answer:

Speed of the plane in still air: [tex]779\; {\rm km \cdot h^{-1}}[/tex].

Windspeed: [tex]100\; {\rm km \cdot h^{-1}}[/tex].

Step-by-step explanation:

Assume that [tex]x\; {\rm km \cdot h^{-1}}[/tex] is the speed of the plane in still air, and that [tex]y\; {\rm km \cdot h^{-1}}[/tex] is the speed of the wind.

The question states that when going against the wind ([tex]v = (x - y)\; {\rm km \cdot h^{-1}}[/tex],) the plane travels [tex]6111\; {\rm km}[/tex] in [tex]9\; {\rm h}[/tex]. Hence, [tex]9\, (x - y) = 6111[/tex].

Similarly, since the plane travels [tex]7911\; {\rm km}[/tex] in [tex]9\; {\rm h}[/tex] when travelling in the same direction as the wind ([tex]v = (x + y)\; {\rm km \cdot h^{-1}}[/tex],) [tex]9\, (x + y) = 7911[/tex].

Add the two equations to eliminate [tex]y[/tex]. Subtract the second equation from the first to eliminate [tex]x[/tex]. Solve this system of equations for [tex]x[/tex] and [tex]y[/tex]: [tex]x = 779[/tex] and [tex]y = 100[/tex].

Hence, the speed of this plane in still air would be [tex]779\; {\rm km \cdot h^{-1}}[/tex], whereas the speed of the wind would be [tex]100\; {\rm km \cdot h^{-1}}[/tex].

The equation of the given parabola is y2=−20(x+3)

A parabola is a symmetrical open plane curve formed by the intersection of a cone with a plane parallel to its side. The path of a projectile under the influence of gravity ideally follows a curve of this shape.

In general in a parabola, if we have

(y−n)2=4p(x−m),

then the vertex is (m,n)

The axis of symmetry is y=m

The focus is (p+m,n)

The directrix is x=m−p.

Hence, for the given case

p+m=−8

n=0

m−p=2

⇒n=0

m=−3

p=−5

So, the answer will be y2=−20(x+3)

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