The area of a square rug can be represented by the expression 100x^2+60x+9. Write an expression to represent the length of each side of the rug.
Answer : The expression to represent the length of each side of the rug is, [tex]Side=10x+3[/tex]
Step-by-step explanation :
As we know that the formula of area of square is:
Area of square = (Side)²
Given:
Area of square = [tex]100x^2+60x+9[/tex]
As,
Area of square = (Side)²
So,
[tex]100x^2+60x+9=(Side)^2[/tex]
[tex]\sqrt{100x^2+60x+9}=Side[/tex]
[tex]\sqrt{100x^2+30x+30x+9}=Side[/tex]
[tex]\sqrt{10x(10x+3)+3(10x+3)}=Side[/tex]
[tex]\sqrt{(10x+3)(10x+3)}=Side[/tex]
[tex]\sqrt{(10x+3)^2}=Side[/tex]
[tex](10x+3)=Side[/tex]
or,
[tex]Side=10x+3[/tex]
Thus, the expression to represent the length of each side of the rug is, [tex]Side=10x+3[/tex]
There are 1,200 students at roosevelt middle school. There are 700 boys at the school. What percentage of the students at roosevelt are boys( to the nearest tenth of a percent)?
Answer:
100x=256.25
Step-by-step explanation:
x/1025=25/100
What is 25% of 1025
that would be 1025×25
100x=256.25
Michael took his younger brother to the movies. Michael paid regular price, but it cost $2 less for his brother at the child price. It cost Michael $12 total for the movie. How much did it cost for his brother?
Answer:
$5
Step-by-step explanation:
So we know that altogether Michael paid $12 right?
So if his brother's price is x then his price is x+2
so 2x+2=12 x=5
Michael's brother's price was $5
and his was $7
In this mathematics problem, Michael's brother's movie ticket cost $10, arrived at by subtracting $2 from the total cost of $12.
Explanation:This is a simple subtraction problem. According to the problem, Michael paid $12 total, with his brother's ticket costing $2 less. Therefore, if we subtract $2 from Michael's ticket, we will have the cost of his brother's ticket.
Here are the steps:
Michael paid $12 in total,His brother's ticket was $2 less,So, subtract $2 from $12, which equals $10.Therefore, his brother's ticket cost $10.
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Help me on number problem 5 please
Answer:
Step-by-step explanation:
The absolute value of x is x.
y = 2x
Use the rise over run method.
2 is the same as 2/1. So, you rise 2 square up from the origin and then go over one, repeating the process. To do it in the negative zone, you just work backwards. Down two and left one.
You should have a diagonal line going from left to right that goes through the origin. Linear equations never end. They continue on forever, so your domain would be (-infinity, infinity) and your range would be (-infinity, infinity). Be sure to use the symbol for infinity instead of the word. The symbol, in case you do not know, looks like an 8 rotated 90 degrees.
How many solutions does 6 —3x = 12 — 6x have?
Answer:
1 solution
Step-by-step explanation:
Remark
1 solution
Rule: the number of solutions to an equation is at most the same number as the highest number on the variable. for example
x^3 + 4x^2 - 6x - 15 has at most 3 real solutions because the highest power is x^3
x^n + x^(n - 1) .... has at most n real solutions. It can have fewer.
Solution
So 6 - 3x= 12 - 6x Subtract 6 from both sides
6 - 6 - 3x = 12 - 6 - 6x Combine
-3x = 6 - 6x Add 6x to both sides
-3x + 6x = 6 Combine
3x = 6 Divide by 3
x = 6/3 = 2
Check
6 - 3(2) = 12 - 6(2)
0 = 0 which checks
The equation 6 —3x = 12 — 6x has one solution, which is x=2.
Explanation:The equation provided, 6 - 3x = 12 - 6x, necessitates an examination of its solutions. By following algebraic procedures, it can be simplified to 6 = 12 - 3x. Further steps, such as subtracting 12 from both sides, lead to -6 = -3x. Dividing both sides by -3 results in x = 2. This mathematical process reveals a unique solution: x = 2. Consequently, the original equation confirms that there is only one valid value for x, emphasizing the equation's ultimate simplicity with a single solution.
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Please answer these two thx❤️
Answer:
8) v = 312
9) s = -12/13
Step-by-step explanation:
8) Multiply left and right by -14, then you get
v-18 = -21*-14
v-18 = 294
Add 18 left and right:
v = 294 + 18
v = 312
9) Add 26 left and right
-13s = -14 + 26
-13s = 12
Divide left and right by -13
s = -12/13
Help! Giving out brainiest!
Answer: 5/x + 1 is not linear. 2/3 is linear because it is a straight line across. 1-2x^2 is not linear because it is a parabola.
solve 3.6 (5×4) ÷ 3+5.0
Answer:
3.6 (5×4) ÷ 3+5.0
3.6.20/3+5.0
9.20/3+5.0
9.5+5.0
45+5.0
45
Step-by-step explanation:
45
The value of the given expression is 45.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
The given expression is solved as,
E = 3.6 (5×4) ÷ 3+5.0
E = 3.6.20/3+5.0
E = (1.2 x 20/3 ) + 5.0
E = (1.2 x 20 ) + 5.0
E = 24 + 5
E = 29
Therefore the value of the given expression is 45.
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write the standard form of the equation of the line through the given point with the given slope.
through: (0,0), slope: 1/3
please help me, my math teacher can't teach
bearing in mind that
standard form for a linear equation means
• all coefficients must be integers, no fractions
• only the constant on the right-hand-side
• all variables on the left-hand-side, sorted
• "x" must not have a negative coefficient
[tex]\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{0})~\hspace{10em} slope = m\implies \cfrac{1}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-0=\cfrac{1}{3}(x-0) \\\\\\ y=\cfrac{1}{3}x\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{3}}{3y=x\implies -x+3y=0}\implies \stackrel{\textit{standard form}}{x-3y=0}[/tex]
Graph each system. Tell whether the system has no solution, one solution, or infinitely many solutions.
y = 2x – 5
y + 5 = 2x
Answer: Infinitely many solutions
The second equation is equivalent to y = 2x - 5 when we subtract 5 from both sides, but this is the exact same as the first equation given to us. So we effectively have 2 copies of the same thing. One is just written in a different format.
Graphing these equations leads to the straight line. One line will be right on top of the other one. The two lines intersect an infinite number of times leading to infinitely many solutions. Any solution point is simply a point on the line y = 2x-5. The solution ordered pair is of the form (x,y) = (x, 2x-5). Two example points on this line are (0,-5) and (1,-3)
side note: We can say that this system is consistent (because it has at least one solution) and it's also dependent (because one equation depends on the other; or it is basically a copy)
1. 2y2 =1.44 please explain how i got my answer
[tex]2y^2=1.44\qquad\text{divide both sides by 2}\\\\y^2=\dfrac{1.44}{2}\to y=\pm\sqrt{\dfrac{1.44}{2}}\\\\y=-\dfrac{\sqrt{1.44}}{\sqrt2}\ \vee\ y=\dfrac{\sqrt{1.44}}{\sqrt2}\\\\y=-\dfrac{1.2}{\sqrt2}\ \vee\ y=\dfrac{1.2}{\sqrt2}\\\\y=-\dfrac{1.2\cdot\sqrt2}{\sqrt2\cdot\sqrt2}\ \vee\ y=\dfrac{1.2\cdot\sqrt2}{\sqrt2\cdot\sqrt2}\\\\y=-\dfrac{1.2\sqrt2}{2}\ \vee\ y=\dfrac{1.2\sqrt2}{2}\\\\\boxed{y=-0.6\sqrt2\ \vee\ y=0.6\sqrt2}[/tex]
Write the slope-intercept form of the line that passes through (-10,17) and (5,-4)
Answer:
y = 7/5 x + 31
Step-by-step explanation:
To find the slope, we need to use the formula
m = (y2-y1)/(x2-x1)
m =(-4-17)/(5- -10)
= -21/(5+10)
= 21/15
Divide the top and bottom by 3.
= 7/5
The slope is 7/5.
Using the point slope form of the equation,
y-y1 = m(x-x1)
y-17 = 7/5 (x--10)
y-17 = 7/5(x+10)
Distribute the 7/5 ths.
y-17 = 7/5 x + 7/5*10
y-17 = 7/5 x +14
Add 17 to each side
y = 7/5 x + 14 + 17
y = 7/5 x + 31
This is in slope intercept form, with the slope being 7/5 and the y intercept of 31
AB passes through A(-3, 0) and B(-6, 5). What is the equation of the line that passes through the origin and is parallel to AB?
A.
5x − 3y = 0
B.
-x + 3y = 0
C.
-5x − 3y = 0
D.
3x + 5y = 0
E.
-3x + 5y = 0
Answer:
C. -5x − 3y = 0
Step-by-step explanation:
A(-3, 0) and B(-6, 5)
First we find the slope of line AB
[tex]slope = \frac{y_2-y_1}{x_2-x_1} =\frac{5-0}{-6+3} =\frac{-5}{3}[/tex]
Slope of the line parallel to AB = slope of line AB
When the lines are parallel then their slope are equal
So the slope of line parallel to AB = [tex]\frac{-5}{3}[/tex]
The line passes through the origin (0,0)
Use equation y-y1= m (x-x1)
m = -5/3 , x1=0 and y1=0
[tex]y-0 = \frac{-5}{3}(x-0)[/tex]
[tex]y= \frac{-5}{3}(x)[/tex]
multiply the whole equation by 3
3y = -5x
Subtract 3x from both sides
0=-5x-3y
-5x - 3y =0
6+4=4+6 is an example of which property
communicative property of addition
associative property of addition
associative property of multiplication
communicative property of multiplication
Answer:
communicative property of addition
Step-by-step explanation:
associative property of addition is (EX) x + (a + 4) = (x + a) + 4
associative property of multiplication is (EX) 5(ab) = (5a)b
communicative property of multiplication is (EX) (2)(a) = (a)(2)
Final answer:
The equation 6+4=4+6 is an example of the commutative property of addition, stating that the order of addition does not affect the sum.
Explanation:
The equation 6+4=4+6 illustrates the commutative property of addition, which states that the order in which two numbers are added does not affect the sum. This is expressed mathematically as A+B=B+A. For ordinary numbers, if you add 2 + 3 or 3 + 2, for example, both expressions will equal to the same result - 5. The commutative property is also applicable to the addition of vectors, where the order of vectors being added together does not change the resultant vector.
183.92 round each number to the place of the underlined digit. The underline number is 3
Answer:
184
Step-by-step explanation:
We are rounding at the 3, so we need to look at the next digit 9.
9>=5 so we will round the 3 up to 4
183.92 rounds to 184
Answer:
184
Step-by-step explanation:
183.92
Look at the digit directly to the right of the given digit. It is a 9. Because 9 is greater than 3, round up.
183.92 rounded to the nearest one place is 184.
184 is your answer
~
What is the value of (-3+3i)+(-2+3i)
Answer:
-5 + 6i
Step-by-step explanation:
(-3)+(-2)+(3i)+(3i) = -5 + 6i
Help please, what is the measure of angle B in the figure below?
Can someone help me on #18 !?
Answer: Choice C) line L is parallel to line M by the converse of the same side interior angle theorem
The same side interior angle theorem says that if two lines are parallel (such as L and M) then the same side interior angles that form are supplementary, meaning they add to 180 degrees.
Flip this in reverse, and you'll get the converse which says that if the same side interior angles add to 180, then the lines must be parallel.
note: if line Q is making things more complicated and confusing, then I suggest covering it up or drawing out the diagram again but leaving out line Q
use inverse operations to solve the equations v+6=15
Answer: v=10
Step-by-step explanation:
Checked work
V=16-6
10+6=16
16=16
carmen ran 5 1/2 miles on the track Each lap around the track is 1/4 mile. How many laps did carman run
Answer:
Carman run 22 laps
(5 1/2) / (1/4) convert 5 1/2 to an improper fraction
(11/2) /(1/4) when you divide the second number you flipped and multiply
11/2 * 4/1
22
29 us. 2ft. 11 in. + 55 yd. 1 ft. 10 in. + 13 yd. 1 ft.3 in.
Answer:
99 yd
Step-by-step explanation:
When I add these, I line them up vertically
29 yd. 2ft. 11 in.
+ 55 yd. 1 ft. 10 in.
+ 13 yd. 1 ft. 3 in.
---------------------------
97 yd 4ft 24 in
We know that 12 in = 1 ft
so 24 in = 2ft
Subtract 24 in and add 2 ft
97 yd 4ft 24 in
+2ft -24 in
------------------------------
97 yd 6ft
We know 3 ft = 1yd
so 6ft = 2yd
Subtract 6ft and add 2 yd
97 yd 6ft
+2yd - 6ft
-------------------
99 yd
(2/9 v)-(-1/3v +5/9)
Answer:
(5/9)(v – 1)
Step-by-step explanation:
(2/9)v - ((-1/3)v +5/9) Remove parentheses
= (2/9)v + (1/3)v - 5/9 Multiply each term by 9/9
= (2/9)v + (3/9)v - 5/9 Combine like terms
= (2v + 3v)/9 -5/9 Combine like terms
= 5v/9 - 5/9 Factor out 5/9
= (5/9)(v – 1)
A new game is being constructed where the game board is going to have 8 rows and 10 spaces in each row. What is the smallest game that can be made?
Answer:
80 spaces
Step-by-step explanation:
find d
a * a * a = 216
a * b * c = 96
b * c = 52
a + b + c = d
[tex]a\cdot a\cdot a=216\\\\a^3=216\to a=\sqrt[3]{216}\\\\\boxed{a=6}\\\\\text{Substitute}\ b\cdot c=52\ \text{to the second expression}\ a\cdot b\cdot c=96:\\\\abc96\ \wedge\ bc=52\to a(52)=96\qquad\text{divide both sides by 52}\\\\a=\dfrac{96}{52}\to a=\dfrac{24}{13}\neq6[/tex]
a = 6 and a = 24/13 FALSE!!!
Answer: NO SOLUTION.A $20 bill two $10 bills three $5 bills and four $1 bills are placed in a bag. If a bill is chosen at random what is the expected value for the amount chosen?
Answer: Hello mate!
You have one $20 bill, two $10 bills, three $5 bills and four $1 bills in a bag.
This adds to a total of 10 bills in the bag, and you want to know the expected value if you took one at random.
The expected value is defined as ∑pₙxₙ
where pₙ is the probability for each event (in this case is the number of bills of a given price divided the number of bills in the bag) and xₙ is the value of the bill.
Then we can write the expected value as:
E = (1/10)*$20 + (2/10)*$10 + (3/10)*$5 + (4/10)*$1 = (1/10)( 20$ + 2*$10 + 3*$5 + 4*$1) = (1/10)*($59) = $5.90
The expected value is $5.90.
The expected value of the amount chosen from a bag containing a $20 bill, two $10 bills, three $5 bills, and four $1 bills is $5.9.
Explanation:In order to find the expected value of the amount chosen from the bag of bills, we need to first calculate the total monetary value of all the bills in the bag and divide it by the total number of bills. The total value is calculated as follows:
There is one $20 bill, so the total from the $20 bills is $20.There are two $10 bills, so the total from the $10 bills is $10 * 2 = $20.There are three $5 bills, so the total from the $5 bills is $5 * 3 = $15.There are four $1 bills, so the total from the $1 bills is $1 * 4 = $4.Adding up these amounts, we get a grand total of $20 + $20 + $15 + $4 = $59. Since there are 1+2+3+4 = 10 bills in the bag, the expected value is found by dividing the total value by the total count of bills: $59 / 10 = $5.9. Thus, if a bill is chosen at random from the bag, the expected value of the amount chosen is $5.9.
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Last year 950 people attended a town's annual parade. This year $1,520 people attended. What was the percent increase in attendance from last year to this year?
Answer: 60 percent attendance was increased .
Step-by-step explanation
Number of people Last year = 950
Number of people this year = 1520
Increase = this year - last year
= 1520 - 950
= 570
Percentage increase = [tex]\frac{increase }{last year} 100[/tex]
= 570 / 950 x 100
= 60
What is the 1st step? 2x-7=18
Answer:
The first step is to add 7 to each side
Step-by-step explanation:
2x-7 = 18
To solve this equation, the first step is to add 7 to each side
2x-7+7 = 18+7
2x = 25
Answer:
the first step is to add 7 to both sides.
Step-by-step explanation:
2x-7 = 18
+7 +7
2x = 25
divide by 2
25/2 = 12.5
so x= 12.5
2c=c+7 What are the steps to find the answer to this equation?
Answer:
c = 7
Step-by-step explanation:
given 2c = c + 7 ( subtract c from both sides )
c = 7
2x - y = 5
x + 3y = 7
What is the value of the y-determinant?
7
9
22
Answer:
9 is the correct answer.
Step-by-step explanation:
The general form of the determinant of the given system
ax + by = e
cx + dy = f
is [tex]\begin{vmatrix}a & b\\ c & d\end{vmatrix}[/tex]
Now, we have the given system, i.e.
2x - y = 5
x + 3y = 7
The y-determinant of a system is formed by taking the constant terms and placing them in the y‐coefficient positions in the general determinant form and keeping the x-coefficients same.
So, we get,
[tex]\begin{vmatrix}2 & 5\\ 1 & 7\end{vmatrix}[/tex]
Solve the above determinant i.e. 2*7 - 1*5 = 14 - 5 = 9
Hence, the value of y-determinant is 9.
What is the growth rate
The tree started at 8 feet tall then grows a given amount per year.
You need to multiply the growth per year by the number of years and add it to the beginning height:
So for the Sycamore tree it would be 8 + 2.5x, so for 5 years it would be 8 +2.5(5) = 8 + 12.5 = 20.5
You do not show the possible answers, but you should be able to use the above example to figure it out.