Answer:
Commutative property
Step-by-step explanation:
Hope that helps!
Stephen ran a race that was 5 miles long. He ran 1/4 of a mile in 1/8 of an hour. He ran the same pace the entire race. How long, in hours, did it take Stephen to run the entire race?
It took Stephen 2.5 hours to run the entire 5-mile race.
Explanation:To find out how long it took Stephen to run the entire race, we need to know how many 1/4 mile segments are present in a 5 mile race. We can do this by dividing the total distance by the distance ran in each segment. Since 1/4 mile is ran in 1/8 hour, we can divide 5 miles by 1/4 mile to find the total number of segments, which is 20. Multiplying 20 by 1/8 hour, we get the total time it took Stephen to run the race, which is 2.5 hours.
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Solve the following system of equations . Plot the solution to the system on the provided graph
Answer:
(6, -3)
Step-by-step explanation:
I will solve this system using elimination.
[tex][tex]\left \{ {{-x+2y=-12} \atop {2x+3y=3}} \right.[/tex][/tex]
I will multiply [tex]-x+2y=-12[/tex] by 2 so that -x becomes -2x.
2(-x + 2y = -12)
Distribute.
-2x + 4y = -24
Now subtract this from the other equation.
2x + 3y = 3
-2x + 4y = -24
7y = -21
Divide both sides by 7.
y = -3
Now that we have the value of y, plug it into the original equation.
-x + 2(-3) = -12
Simplify.
-x - 6 = -12
Add 6 to both sides.
-x = -6
Divide both sides by -1.
x = 6
(6, -3)
PLEASE BE FAST !!!!!!
John bought 6 dumplings for $3.00. Let x represent the number of dumplings purchased, and let y represent the total cost. Graph the line that represents the proportional relationship.
15 POINTS
Answer:
I think this is right but I may be wrong
Step-by-step explanation:
Answer:
Easy! Y=0.5x
Step-by-step explanation:
First, we have to find unit rate.
6/6 = 1
3.00 / 6 = 0.5
Y=0.5x
Beginning at 8:30 A.M., tours of the National Capitol leave every 15 minutes. Tours for the White House leave every 20 minutes. How often do the tours leave at the same time?
Graph the functions and approximate an x-value in which the exponential function surpasses the polynomial function. In your final answer, include a copy of the graph. y = 2x2 + 7 y = 5(x-4)
Answer:
x-value is 6.87
Step-by-step explanation:
we are given
Polynomial as
[tex]y=2x^2+7[/tex]
Exponential as
[tex]y=5^{x-4}[/tex]
Firstly, we can draw graph
We can see that intersection point is (6.87,101.392)
so, x=6.87
At (6.97, 101.392) the exponential function surpasses the polynomial function.
What is the graphical solution of a system of equations?Graphical solutions of a system of equations are way of finding the intersection points of all the equations given.
A system with two or more than two equations has a solution only when they have a common intersection point.
Given, A system of equation y = 2x² + 7 and y = 5^(x - 4).
Now by graphing these two equations we observe that at 6.87 the exponential function surpasses the polynomial function.
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a quadrilateral has interior angles 85, 105 and 120 what is the measure of the 4th angle?
__________________
Answer: [tex]50^{\circ}[/tex]
Step-by-step explanation:
By the definition of quadrilateral,
A quadrilateral has four interior angles and the sum of all interior angle of a quadrilateral is always equal to [tex]360^{\circ}[/tex]
Here the measurements of three interior angles are [tex]85^{\circ}[/tex], [tex]105^{\circ}[/tex] and [tex]120^{\circ}[/tex]
Let the measurement of fourth angle is x degree.
Thus, [tex]85^{\circ}+105^{\circ}+120^{\circ}+x=360^{\circ}[/tex]
[tex]310^{\circ}+x=360^{\circ}[/tex]
[tex]x = 360^{\circ}-310^{\circ}=50^{\circ}[/tex]
Thus, the measure of fourth angle is [tex]50^{\circ}[/tex]
The measure of the 4th angle is 50 degrees.
Explanation:To find the measure of the fourth angle of a quadrilateral, we need to know that the sum of all the interior angles of a quadrilateral is always 360 degrees. Therefore, to find the measure of the fourth angle, we can subtract the sum of the other three angles from 360. In this case, the given angles are 85, 105, and 120 degrees, so the sum of these three angles is 85 + 105 + 120 = 310 degrees. To find the measure of the fourth angle, we subtract 310 from 360: 360 - 310 = 50 degrees.
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Each bottle of apple juice costs $2.40 and each bottle of orange juice costs $2.20. If James has $50.80 and wants to buy 10 bottles of orange juice, how many bottles of apple juice can he buy using his remaining amount?
Answer:
12
Step-by-step explanation:
Orange juice: $2.20 per bottle.
10 bottles of orange juice cost 10 * $2.20 = $22.00.
We subtract the cost of the 10 bottles of orange juice from the amount of money he has to find out the amount he will have left for bottles of apple juice.
$50.80 - $22.00 = $28.80
After buying the 10 bottles of orange juice, he has $28.80 left.
We divide the money he has left for apple juice bottles by the price of one apple juice bottle to find out the number of apple juice bottles he can buy.
$28.80/$2.40 = 12
He can buy 12 bottles of apple juice.
Which decimal is equivalent to 76/9?
Answer:
8.4444...
Step-by-step explanation:
So it's easier if we can write it first in mixed fractions. 9 x 8 is 72 and th is the highest we can go. So it becomes [tex]8\frac{4}{9}[/tex]. Then, if you just long divide 4 by 9 you get .44444.... So it is 8.4 repeating.
8.444 decimal is equivalent to fraction 76/9.
What are mathematical operations?The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.
Given a fraction of 76/9
Simplifying the above fraction,
=> 76/9
=> (72 + 4)/9
=> 8 + 4/9
=> 8 + 0.444
=> 8.444
Therefore, 8.444 decimal is equivalent to fraction 76/9.
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Yesterday, Leila had d baseball cards. Today, she gave 10 away. Using , write an expression for the number of cards Leila has left.
Answer:
d - 10
Step-by-step explanation:
Because the amount of Leila’s baseball cards was d, subtract 10 from it to get Leila’s amount of baseball cards now.
d - 10
Answer:
d-10
Step-by-step explanation:
I don't know the word after "Using".
"Gave away" means having less, which means that you should subtract.
d-10
Solve: 2x^2 = 98 somebody please help me
Answer:
x= 7
Step-by-step explanation:
2x^2=98
\frac{2x^2}{2}=\frac{98}{2}
x^2=49
7^2=49
Final answer:
The solutions to the equation 2x^2 = 98 are x = 7 and x = -7, obtained by isolating the x^2 term and taking the square root of both sides.
Explanation:
To solve the equation 2x^2 = 98, we need to convert it into a standard quadratic equation by bringing the terms to one side of the equals sign, setting it equal to zero:
2x^2 - 98 = 0
Now, we will proceed to solve the quadratic equation. In this simple case, we can find the solutions by factoring or by taking square roots. First, we move the constant to the other side:
2x^2 = 98
Divide both sides by 2 to isolate the x^2 term:
x^2 = 49
To find x, we take the square root of both sides. Do not forget to consider both the positive and negative roots:
x = ±√49
x = ± 7
So the solutions to the equation 2x^2 = 98 are x = 7 and x = -7.
Determine which function(s) is NOT a linear function. Select all that apply.
Answer:
x=3
Step-by-step explanation:
By vertical line test, x=3 fails because more than 2 points have the same x value. Functions must pass the vertical line test.
Answer:54x6432y=7644335
Step-by-step explanation:
tab;e times table
What is the solution to the system of equations? X+3y=18 x+2y=14
Answer:
Solution to system is
x = 6 and y= 4
S.set={6,4}
Step-by-step explanation:
The given equations are
x + 3y = 18 ................(i)
x + 2y=14 .................(ii)
Subtracting both equation
(x+3y)-(x+2y)=18-14
x+3y-x-2y = 4
y = 4
put the value of y in equation (i)
the equation becomes
x + 3(4) = 18
x + 12 = 18
subtracting 12 from both sides
x + 12 -12 = 18-12
x =6
Solution to system is
x = 6 and y= 4
S.set={6,4}
Which is the largest decimal? 0.0688 0.667 0.68 0.6
The largest decimal is :
0.68
Because: In the tenths place, 6 is the biggest number. Now we go to the hundredths to see which one is the biggest. 8 Is the largest one out of them. But what about the 0's? The 0's at the end don't really matter. They are there to confuze you or to add more extra 0's. The 0 at the front of the decimal is also smaller then the 6. For example: 0.0175 < 0.68
Hope helps!-Aparri
The largest decimal among 0.0688, 0.667, 0.68, and 0.6 is 0.68. This can be determined by comparing each digit from left to right in the numbers. Hence, 0.68 is the highest.
To determine which is the largest decimal among 0.0688, 0.667, 0.68, and 0.6, we compare each decimal value:
0.06880.6670.680.6We start from the leftmost digit and compare:
First, look at the integer part left of the decimal point. All numbers are less than 1.Next, compare the tenths place: 0.0688 (0), 0.667 (6), 0.68 (6), 0.6 (6). So, 0.0688 is the smallest.For 0.667, 0.68, and 0.6: compare the hundredths place. Here, 0.6 (60), 0.667 (66), 0.68 (68). The largest is 0.68.Therefore, the largest decimal among the given numbers is 0.68.
A point on the terminal side of an acute angle in standard position is (1, 2 √2). Find the cosine value of this angle.
1/3
1
2√2/3
2√2
Answer:
[tex]cos\theta=1/3[/tex]
Step-by-step explanation:
The point at the terminal side of an acute angle is given by [tex](1, 2\sqrt{2} )[/tex].
That is,
[tex]x = 1[/tex] and [tex]y= 2\sqrt{2}[/tex] .
Let r be the length of line segment drawn from the origin to the point and is given by the formula:
[tex]r = \sqrt{x^{2} + y^{2}}[/tex]
Substituting the values of x and y into r,
[tex]r = \sqrt{1^{2} + (2\sqrt{2} )^{2}}[/tex]
[tex]r = \sqrt{1 + 8}[/tex]
[tex]r = \sqrt{9}[/tex]
Thus, [tex]r=3[/tex]
Also, [tex]cos\theta[/tex] is given by:
[tex]cos\theta = x/r\\[/tex]
Substituting values of x and r,
[tex]cos\theta = 1/3\\[/tex]
can you please help????????
Answer:
9x - 8
Step-by-step explanation:
the perimeter is the sum of the sides, hence
perimeter = 5x - 2 + 3x + 4 + x - 10 ( collect like terms )
= 9x - 8 ← polynomial of degree 1
what is the recursive rule for this geometric sequence? 27, 9, 3, 1...
Answer:
Divided by 3.
They are all divided by 3.
Answer:
b(1)= 27
b(n)=b(n-1)* (-1/3)
Step-by-step explanation:
A cheese maker changes the temperature of her milk at a rate of negative -2 F Per minute what is the change in the temperature of the milk after 25 minutes
Answer:
-0.08 F
Step-by-step explanation:
5 ( 9 + d ) when d = 3
Answer:
60
Step-by-step explanation:
5 ( 9 + d )
Let d=3 and substitute it in
5(9+3)
According to PEMDAS, we do what is in the parentheses first
5(12)
Now we multiply.
60
Answer:
60
Step-by-step explanation:
5 ( 9 + d )
Let d=3 and substitute it in
5(9+3)
According to PEMDAS, we do what is in the parentheses first
5(12)
Now we multiply.
60
pls help only b,d, and f
Which triangle has hypotenuse of BD? Triangle BDA, TRIANGLE BDF, Triangle BDG, Or BDH
The hypotenuse of the ΔBAD is the side BD.
What is Hypotenuse of a Triangle?The longest side in a right angled triangle is called hypotenuse, it is the side which is opposite to 90° angle.
Steps:Step 1 : In the given cube, we should look at the face ABCD
Step 2 : Let us draw an imaginary line between the point B and D
Step 3 : Now the face ABCD is split into two triangles ΔBAD and ΔBCD respectively
Step 4 : The side opposite to the 90° angle of ΔBAD is BD
Hence the side BD is hypotenuse of ΔBAD.
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Zahra was given two data sets, one without an outlier and one with an outlier. Data without an outlier: 15, 19, 22, 26, 29 Data with an outlier: 15, 19, 22, 26, 29, 81 How is the median affected by the outlier?
Answer:
The outlier slightly affected the median.
Step-by-step explanation:
Answer:
simple terms its A
Step-by-step explanation:
what polynomial identity will prove that 117=125-8
Answer:
Difference of cubes polynomial identity prove that 117 =125-8
Step-by-step explanation:
Difference of cubes:- A polynomial in the form of [tex]a^3 -b^3[/tex] is called the difference of cubes.
The formula for difference of cubes is;
[tex]a^3 -b^3 = (a-b)(a^2+b^2+ab)[/tex]
To prove: 117 = 125 - 8
Take RHS
[tex]125-8 = 5^3 -2^3[/tex]
Apply difference of cubes;
[tex]5^3-2^3 = (5-2)(5^2+2^2+5\cdot 2)[/tex]
=[tex]3(25+4+10) = 3(39) = 117[/tex] = LHS hence proved!
Therefore, difference of cubes polynomial identity will prove that 117 = 125-8
When using pi, do you use 3.14 or 3.141592653?
i always use 3.1415 but just to be safe use the pi symbol :)
Need an answer thanks
A cross-shaped pattern is made by arranging four identical rectangles around the side of a square, as shown in the diagram.
The area of the square is 36cm^2.
The area of each rectangle is one and a third times the area of the square.
Find the perimeter of the cross-shaped pattern.
Show your working and state the units of your answer.
Awarding 15 points. Please someone answer correctly quick, much appreciated x
Answer:
88 cm
Step-by-step explanation:
The side of the square = 6 cm, so the shorter side of each rectangle = 6 cms.
The area of each rectangle = 36 * 1 1/3
= 36 * 4/3 = 48 cm^2
So the longer side of each rectangle = 48 / 6 = 8 cms
Therefore, the perimeter of the whole figure
= 4( shorter sides ) + 8(longer sides)
= 4*6 + 8*8
= 24 + 64
= 88 cm (answer)
I NEED HELP!
I'll give brainlyest to the person who's right
Answer:
distributive
Step-by-step explanation:
the number out side the parenthesis, 3 in this case, is being distributed to the numbers inside the parenthesis
Answer:
I would say distributive property
Number 17 is B
Step-by-step explanation:
because your are multiplying 3 times 4 to get 12 and you are multiplying 3 times 3 to get 9
You add -3 to the first number to get the same exact number as the one to the right of -5
What is the answer to b in #10
Answer:
X=5 (Or (5,0))
Step-by-step explanation:
The Y intercept is when X=0
The X Intercept is when Y=0
Our equation is y=-4200x+21000
So let's rewrite it... First subtract 21,000 (Also, remember Y is 0)
0-21000=-4200x
-21000=-4200x
Now to get X alone, divide -21000 by -4200
This will give us 5=x, which is the same as x=5. There is your answer!
The slope means that the value decreases by -4,200 per year.
What can we say about the slope?Here we have the linear equation:
y = -4,200x + 21,000
We know that this equation relates the value of something, y, after x years.
So a slope will tell us how many units does the value increase or decraeses each year.
Here the slope is -4,200, which means that the price decreases by -4,200 dollars each year.
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Ramon is graphing the function f(x) = 3(4)x. He begins by plotting the initial value. Which graph represents his initial step?
Answer:
The first attached graph showing the plotted point (0, 3) represents Ramon's initial step.
Step-by-step explanation:
We are given that Ramon is graphing the function f(x) = 3(4)x and that he begins by plotting the initial value.
So if we will input 1 for the value of x and then evaluate the plot point.
Therefore, we will get the point (0, 3) as the answer for this initial step.
Also, the first attached graph here showing the plotted point (0, 3) represents Ramon's initial step.
Answer:
The graph that represent the initial step in the attached figure
Step-by-step explanation:
we have
[tex]f(x)=3(4^{x})[/tex]
we know that
The initial value is the value of the function when the value of x is equal to zero
so
For [tex]x=0[/tex]
substitute in the function
[tex]f(x)=3(4^{0})=3(1)=3[/tex]
therefore
The initial value is the point [tex](0,3)[/tex]
The graph that represent the initial value in the attached figure
What is the value of cd if c= 9 and d = 8
Answer:
72
Step-by-step explanation:
c=9
d=8
cd = c*d
substitute in what they give you the variables equal to
cd=9*8=72
Answer:
72
Step-by-step explanation:
the total entry price of the top of the Eiffel Tower during the low season of 95 Euros for 4 students and five teachers the total entry price is 173 euros and for 6 students and 10 teachers. find total entry price of the Eiffel Tower for a group of three students and 4 teachers
Answer:
74.30
Step-by-step explanation:
Let s = entry price for a student
Let t = entry price for a teacher
4s +5t = 95
6s+10t = 173
I will use elimination to solve this problem.
Multiply the first equation by -2
-2(4s +5t) = -2*95
Distribute
-8s - 10t = -190
Add this equation to the second equation to eliminate t
-8s - 10t = -190
6s+10t = 173
----------------------
-2s = -17
Divide by -2
-2s/-2 = -17/-2
s = 8.50
Now we need to find t
4s +5t = 95
Substitute s=8.50
4(8.50) +5(t) = 95
34 +5t = 95
Subtract 34 from each side
34-34 +5t = 95-34
5t = 61
Divide by 5
5t/5 = 61/5
t = 12.20
We want to find the cost for 3 students and 4 teachers
3s+4t
3(8.50) + 4(12.20)
25.50 + 48.80
74.30