Answer:
Both
Step-by-step explanation:
First,let's resolve the expression into factors
x^3-x^2-6x
x(x^2-x-6)
x(x^2-3x+2x-6)
x(x(x-3)+2(x-3))
x(×+2)(x-3)
Therefore,both of them are the factors of the expression
The linear equation y=45x describes how far from home Traci is as she drives from San Francisco to Dawson. Let x represent the number of hours and y represent the number of miles. How far from home is Traci in 12 hours? Graph the equation and tell whether it is linear.
An equation is formed of two equal expressions. The distance between Traci and her home after 12 hours is 540 miles.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given that the linear equation y=45x describes how far from home Traci is as she drives from San Francisco to Dawson. where x represents the number of hours and y represents the number of miles.
Therefore, the distance covered by Traci in 12 hours is,
y = 45x
y = 45(12)
y = 540 miles
Hence, the distance between Traci and her home after 12 hours is 540 miles.
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Please help!!!
I don't understand....
I would really like an explanation..
Answer:
it would be yes
Step-by-step explanation:
LN and XZ are equal to eachother which means the triangles are the same size therefore means LNM = XZY
Answer:
yes
Step-by-step explanation:
because if you match them with the same group then they come out as congruent
I don't know if that is well explain
Use the distributive property to expand -4 (-2/5 + 3 x). Which is an equivalent expression?
A) -8/5 + 12x
B) -8/5 - 12x
C) 8/5 + 12x
D) 8/5 - 12x
Answer:
8/5-12x.
Step-by-step explanation:
To distribute, you simply need to multiply each of the terms inside of the parenthesis by -4. This will give you:
=-4([tex]\frac{-2}{5}[/tex])-4(3x)
=8/5-12x. This is your answer!
Answer:
8/5 -12x
Step-by-step explanation:
please help I have no clue what I'm doing
Answer:
[tex] \frac{3x}{2x - 6} + \frac{9}{6 - 2x} = [/tex]
[tex] \frac{3x}{2x - 6} + \frac{9}{ - 1(2x - 6)} = [/tex]
[tex] \frac{3x}{2x - 6} + \frac{ - 9}{2x - 6} = \frac{3x - 9}{2x - 6} = [/tex]
[tex] \frac{3(x - 3)}{2(x - 3)} = \frac{3}{2} [/tex]
a = -1, b = -9, c = 9, d = 3, e = 3,
f = 2, g = 3/2
If the ratio of the shaded parts of the figure to the total number of parts is 5 to 8, what is the percent of shaded parts to total parts?
a. 40%
b. 58%
c. 62.5%
d. 85%
(with explanation)
In the right triangle above, a = 99 and c= 124. Find the value of b, rounded to the nearest tenth.
Answer:
B= -40
Step-by-step explanation:
So a right triangle has to = 180
So we write the given, which 124+99
we are trying to get 180 so lets subtract that by the equation, 180-124+99
180-(124+99)
12+99=223
180-223
=-43
But in your case it has to be rounded to the nearest tenth
So the answer is -40
A football player runs 13 1/2 yards how many feet does he run?
Answer:
40 and a half feet
Step-by-step explanation:
1 meter=3 feet
13.5m=40.5f
The runner will run about 40.5 ft
What is unit conversion?A unit conversion expresses the same property as a different unit of measurement.
For instance, time can be expressed in minutes instead of hours, while distance can be converted from miles to kilometers, or feet, or any other measure of length.
Given that, a football player runs 13 1/2 yards we need to find the that, how many feet does he run,
Since,
1 meter = 3 feet
Therefore,
13.5 m = 13.5 x 3 ft
= 40.5 ft
Hence, the runner will run about 40.5 ft
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) Perry earns $13 per hour. Last week, he worked 6 hours on Monday, 5 hours on
Tuesday, and 9 hours on Wednesday. He had Thursday off, and then he worked 7 hours on
Friday. How much money did Perry earn in all last week?
Factor the expression using
the greatest common factor:
27x + 45
Answer:
The GCF should be 9
Step-by-step explanation:
Question shown in images
HELP HELP HELP HELP HELP HELP!!!!!!
Answer:
The answer is part B
Step-by-step explanation:
The equation given is y = 4500 - 450p
y is the no of demand units
p is the price
let price be 1 dollar.
Therefore,
y = 4500 - 450x1
y = 4050
Now, let the price be 2 dollars.
y = 4500 - 450x2
y = 3600
Subtract the two values and the answer is 450.
This means that for each dollar increased, the no of demand units falls by 450
which of the following is a polynomial?
A. (x^8 - 2) / (x^-2 + 3)
B. 1/x - 1
C. x^2 + 2
D. 7x^7 -2x^-4 + 3
A polynomial is an expression involving addition, subtraction, multiplication, and non-negative integer exponents of variables. Among the options provided, only option C (x^2 + 2) is a polynomial. The correct answer is C.
To determine which of the given options is a polynomial, we need to understand what a polynomials are. A polynomial is an expression that consists of variables and coefficients, involving only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.
Here are the given options:
(A) (x^8 - 2) / (x^-2 + 3)(B) 1/x - 1(C) x^2 + 2(D) 7x^7 -2x^-4 + 3Let's analyze each option:
Option A: (x^8 - 2) / (x^-2 + 3) - This is not a polynomial because it has a variable in the denominator. Option B: 1/x - 1 - This is not a polynomial because of the variable in the denominator. Option C: x^2 + 2 - This is a polynomial. It consists of terms with non-negative integer exponents. Option D: 7x^7 -2x^-4 + 3 - This is not a polynomial because it includes a term with a negative exponent (-2x^-4).Thus, the correct answer is option C, x^2 + 2.
3.
A farmer buys a new tractor for $75,000. If the tractor depreciates in
value by about 6% per year, how much will it be worth after 15 years?
a $22.992
b
$11,219
C $17,431
$29,647
Answer:
Option D. $29,647
Step-by-step explanation:
The following were obtained from the question:
Present value = $75,000
Rate of depreciation (R) = 6%
Time (t) = 15 years
Amount after 15 years =?
Since the worth of the tractor is depreciating, we shall apply the following formula to obtain the worth after 15 years:
Amount = present value x (1 – R)^t
Amount = $75000 x (1 – 6%)^15
Amount = $75000 x (1 – 0.06)^15
Amount = $75000 x (0.94)^15
Amount = $29647
Therefore, the value of the tractor after 15 years is $29647
g(t) = -2t^3 - 2t^2
f(t)=t-3
Find g(-3) + f(-3)
A) 32B) 10
C) 30 D) -30
Answer:
30
Step-by-step explanation:
g(t) = -2t^3 - 2t^2
f(t)=t-3
g(-3) = -2 (-3)^3 - 2(-3) ^2 =-2(-27) - 2(9) = 54 - 18 =36
f(-3) = -3-3 = -6
g(-3) + f(-3) = 36 + -6 = 30
If a population has 824 subjects, then about how many would have characteristics in the upper quartile?
Answer:
206
Step-by-step explanation:
(.25)(824) = 206
I hope this helps!
There would be 206 characteristics in the upper quartile
How to determine the number of characters?The population of the study is given as:
Subject = 824
A quartile is 1/4.
So, the number of characteristics in the upper quartile is:
Quartile = 1/4 * Subjects
This gives
Quartile = 1/4 * 824
Evaluate
Quartile = 206
Hence, there would be 206 characteristics in the upper quartile
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Which is most likely the correlation coefficient for the set
of data shown?
0 -0.83
0 -0.21
O 0.21
O 0.83
2
3
4
Answer:
-0.21
Step-by-step explanation:
The solution is, -0.21 , is the most likely the correlation coefficient for the set of data shown.
What is Correlation coefficient ?A correlation coefficient is a numerical measure of some type of correlation, meaning a statistical relationship between two variables. The variables may be two columns of a given data set of observations, often called a sample, or two components of a multivariate random variable with a known distribution.
here, we have,
From the scatter plot that is shown in the graph above, we can observe that the set of data represented are not clustered far apart from each other along the line of best fit.
This suggest a correlation coefficient of lesser value close to zero which shows weaker correlation between variables.
Also, we can observe that There's a downward slope signifying a negative relationship.
As one variable increases, the other variable decreases.
Therefore the correlation coefficient that will match the set of data shown is -0.21.
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HELP !!
What is the measure of XY?
A. 133°
B. 43°
C. 47°
D. 137°
Answer:
The correct answer is D.
By applying the theorem of intersecting chord to this circle, the measure of arc XY is: D. 137°.
In Mathematics and Geometry, the theorem of intersecting chord states that when two (2) chords intersect inside a circle, the measure of the angle formed by these chords is equal to one-half (½) of the sum of the two (2) arcs it intercepts.
By applying the theorem of intersecting chord to this circle shown in the image attached above, we can logically deduce that the measure of arc XY can be calculated by using this formula:
m∠ZWV = 1/2 × (Arc XY + Arc ZV)
90° = 1/2 × (Arc XY + 43)
180° = Arc XY + 43
Arc XY = 180 - 43°
Arc XY = 137°
What is the Measurement of angle A?
Answer:
A = 60
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles
119 = 3y+14 + 4y
Combine like terms
119 = 7y+14
Subtract 14 from each side
119-14 = 7y+14-14
105 = 7y
Divide each side by 7
105/7 = 7y/7
15 = y
We want to find Angle A
A = 4y
A = 4*15
A = 60
If the probability of a chance event is 0.75, it is less likely to happen
than which of the following probabilities of another chance event?
Select one:
0.3
0.55
0.55
0.7
0.95
Answer:
0.95
Step-by-step explanation:
The higher the probability, the higher the likelyhood it will happen.
.95>.75
Answer:
0.95
Step-by-step explanation:
Which number comes first if the numbers 12.0036, 0.01249, 3.51, and 0.007 are arranged in order from fewest to most number of significant digits?
a. 12.0036
b. 3.51
c. 0.01249
d. 0.007
Answer:
0.007
Step-by-step explanation:
Because even though there are zeros in front and can be placed in back the other numbers are more because they have numbers where 0.007 don't.
Answer:
As kyeracorley33 states: D. 0.007 should be the correct answer.
David, Chen, and Leslie raised money for the school in a walk-a-thon. Altogether they made $46. Leslie made $10. Chen made twice as much as David. How much did David make?
Answer:
David made $18
Step-by-step explanation:
Leslie made $10. This means that you take 46-10=36
Chen-Chen made twice as much as David so 36/2=18 So Chen made $9.
David- 36-18= 18 So, David made 18 dollars.
In this mathematics problem, David, Chen, and Leslie together raised $46, with Leslie raising $10. Given that Chen raised twice as much as David, we can represent David's earnings as 'x' and Chen's as '2x'. By solving the resulting equation 3x = $36, we find that David raised $12.
Explanation:To find out how much David made in the walk-a-thon, we need to break down the information given. We know that all three individuals together made $46, with Leslie making $10. So, David and Chen together made $46 - $10 = $36. But we are also told that Chen made twice as much as David. If we represent David's earnings as 'x', then Chen's earnings would be '2x'. Therefore, 2x (Chen's earnings) + x (David's earnings) equals $36.
Adding 2x and x gives 3x, so the equation to solve is 3x = $36. To solve for 'x', divide both sides of the equation by 3. This gives x = $36 / 3, so David's earnings, represented by 'x', is $12.
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Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square.How many tiles will be need?
Dmitri needs 854 glass tiles to cover the top and sides of the box.
Given the dimensions of the box, where Length (L) = 13 cm, Width (W) = 20 cm, and Height (H) = 9 cm, we can find the surface area of the box using the formula for the surface area of a cuboid:
[tex]\[ \text{Surface Area} = L \times W + 2 \times L \times H + 2 \times W \times H \][/tex]
Substitute the values:
[tex]\[ \text{Surface Area} = 13 \times 20 + 2 \times 13 \times 9 + 2 \times 20 \times 9 \][/tex]
[tex]\[ \text{Surface Area} = 260 + 234 + 360 \][/tex]
[tex]\[ \text{Surface Area} = 854 \, \text{cm}^2 \][/tex]
Now, since each glass tile is 1 cm square, the number of tiles needed is the total surface area divided by the area of each tile:
[tex]\[ \text{Number of tiles} = \frac{\text{Surface Area}}{\text{Area of one tile}} \][/tex]
[tex]\[ \text{Number of tiles} = \frac{854}{1} \][/tex]
[tex]\[ \text{Number of tiles} = 854 \][/tex]
Therefore, Dmitri needs 854 glass tiles to cover the top and sides of the box.
Complete Question: Dmitri wants to cover the top and sides of the box shown with glass tiles that are 1cm square. How many tiles does he need? ( The length is 13cm, the width is 20cm and the height is 9cm).
find the distance of the line segment joining the two points (4,-3) and (12,3) 3 10 6 5
Answer:D or 4 square root 3
Step-by-step explanation:
using distance formula -12 square rooted - 2 square root 3 = -4squareroot3. So, after that you would square giving 48 then square root giving 4 square root 3. (-4 square root 2 and -32 square rooted cancel out giving 0)
Write an equation of the circle with center (-3, 4) and radius 6.
Answer:
(x+3)²+(y-4)²=36.
Step-by-step explanation:
For this, we need to use the equation of a circle which is:
(x-h)²+(y-k)²= r²
Simply substitute the center values for 'h,k', and the radius for 'r'.
This will give you:
(x+3)²+(y-4)²=36.
What is the equation of the third rocket?
Final answer:
The equation of the third rocket is likely referring to the Tsiolkovsky rocket equation Δv = ve · ln(mo/m), which calculates the change in velocity of a rocket by considering the expelled fuel mass, exhaust velocity, and the rocket's initial and final mass.
Explanation:
The equation of the third rocket is not explicitly provided in the question, but we can infer it relates to the Tsiolkovsky rocket equation which describes the motion of a rocket. This rocket equation is fundamental in understanding how rockets achieve motion through the expulsion of fuel mass at a high speed, thereby increasing their velocity. This change in velocity Δv is the result of the thrust imparted by the propellant's mass expulsion and is calculated using the equation: Δv = ve · ln(mo/m), where Δv is the change in velocity, ve is the effective exhaust velocity, mo is the initial total mass, and m is the final total mass of the rocket.
From the information provided, we can use the rocket's mass flow rate and the given velocity function to integrate and determine the rocket's position over time. When the thrust ends at t3 = 4.0 s, the position formula r(t) involves the integration of the velocity function, resulting in a function of time with an integration constant D.
The physical principle behind all rocket propulsion is Newton's third law of motion. The motion of the rocket is also described by factors such as the exhaust velocity, rate of fuel expulsion, and the total mass. To maximize acceleration, the non-fuel mass of the rocket must be minimized, enabling the spacecraft to achieve the necessary velocities for space missions.
Which triangle is both scalene and acute?
Answer:
Top right.
Step-by-step explanation:
For it to be an acute triangle, none of the angles can be greater or equal to 90°.
In the case of the top right triangle, none of them are:
51°, 58° , 71°
The definition of a scalene triangle, is that none of the sides must have the same measurements (no sides are congruent). This is true, all measurements are different:
8.3 ft, 9 ft, 10 ft
Top Right choice is your answer.
~
Your football team has a probability of 3/4 or 75% of winning a game. Your team is scheduled to play 16 games. How many games will your team win?
A:10
B:12
C:14
Answer:
B. 12
Step-by-step explanation:
3/4 can be converted to something over 16. You have to multiply 4 x 4 to get to 16, so do the same with 3, and 3 x 4 is 12. Now the fraction/proportion is 12/16, so they will win 12 games.
Answer:
B
Step-by-step explanation:
3/4 of 16 is 12 set a relation 3/4 = x/16. 4 x 4 is 16 so multiply 3 x 4 and you get 12 or you can ask siri "what is 75 percent of 16"
A two story mall has seven entrances on the first floor. Inside, it has four escalators, nine sets of stairs, and two elevators for customers to travel between floors. If a customer is on the second floor, how many ways can they leave the mall.
Answer:
They can leave 7 ways.
Answer:
The answer is 105. 15 times 7.
You can only take 1 of 15 ways down and 1 of 7 doors out.
Step-by-step explanation:
Name each of the following lines, line segments, and rays.
Answer:
A. Line segment
B. Ray
C. Line
D. Ray
Step-by-step explanation:
A line is a straight path of points that has no beginning or end.
A line segment is a portion of a line that has two endpoints.
A ray is a portion of a line which has one endpoint and extends forever in one direction.
The following will be named as follows:
a. line segment GH
b. ray KL
c. line YZ
d. ray EF
Recall:
A line contains a set of points with both ends extending further.A line segment has two endpoints.A ray has just one endpoint and the other end extending further.Therefore, the following will be named as follows:
a. line segment GH
b. ray KL
c. line YZ
d. ray EF
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The excavation for a house and the trucks to carry away the material have the dimensions shown. About how many level truck loads are necessary to remove all the dirt? The truck is 5.0 for the length 2.0 for the height 3.0 for the side base The house is 4.0 for the height 14.5 for the length and 11.0 for the side base 100 points !!!!! and brainlist
Answer:
This means that about 21 level truck loads are necessary to remove all dirts.Step-by-step explanation:
To get the number of level truck loads needed to remove all the dirts in the house, first we need to calculate volume of the truck and the house.
Volume of truck = Length * Breadth * Height
If the truck is 5.0 for the length 2.0 for the height 3.0 for the side base;
Volume of the truck = 5*2*3
Volume of truck = 30
For the house;
Volume of house = Length * Breadth * Height
If the house is 4.0 for the height 14.5 for the length and 11.0 for the side base, then
Volume of the house = 4*14.5*11 = 638
Number of level truck loads needed to remove all the dirts = Volume of house/Volume of the truck = 638/30 ≈ 21.3
This means that about 21 level truck loads are necessary to remove all dirts.
Final answer:
To find the number of truck loads needed to remove all the dirt excavated for the house, calculate the volume of dirt excavated and divide by the volume the truck can carry. In this case, approximately 11 truckloads are required.
Explanation:
The number of level truck loads needed to remove all the dirt can be calculated by first finding the volume of dirt excavated for the house and then dividing it by the volume the truck can carry.
Volume of dirt excavated for the house = 15 m x 11 m x 1 m = 165 m3
Number of truck loads = Volume of dirt excavated / Volume truck can carry
Number of truck loads = 165 m3 / 15 m3 = 11 truck loads