Why is a parallelogram not the same of quadrilateral as a trapezoid? Explain how you know.
A parallelogram has 2 sets of parallel sides. However, a trapezoid only has 1 set.
The following system has no solution.
x+y+z= 15
2x+z = 1
27-z=7
true or false
Answer:
False
Step-by-step explanation:
Let us start with the most obvious one:
27 - z = 7
-27 - 27
_________
-z = -20
z = 20 [Plug this back into the other two equations to get the y-coordinate and x-coordinate of 4½ and -9½]; 4½ = y; -9½ = x
So, the solution is [-9½, 4½, 20].
I am joyous to assist you anytime.
123,608,902.904.Written in words
Answer:
One hundred and twenty three million six hundred and eight thousand nine hundred and two point nine hundred and four. Hope this helps you!
Kendra and her horse completed the
barrel racing course in 15.839 seconds.
What is this number rounded to
the nearest tenth? Explain how
you decided
Answer:
15.839 rounded to the nearest tenth is 15.8. This is because when we round it to the nearest hundredth it becomes 15.84 and then to the tenth it becomes 15.8, since 4 is less than 5.
Answer:
15.839 redondeado a la décima más cercana es 15.8.
Step-by-step explanation:
Esto se debe a que cuando lo redondeamos a la centésima más cercana se convierte en 15.84 y luego a la décima se convierte en 15.8, ya que 4 es menor que 5.
2X + 4 = 14
what is X
Hello!
2X + 4 = 14
X = 5
2 * 5 = 10
10 + 4 = 14
I hope this helps, and have a nice day!
In order to get the answer to this question you will have to subtract four on both sides then divide ten by two to get your answer.
[tex]2x+4=14[/tex]
[tex]-4 -4[/tex]
[tex]14-4=10[/tex]
[tex]2x=10[/tex]
[tex]10\div2=5[/tex]
[tex]x=5[/tex]
Therefore the answer is "x=5."
Hope this helps
if she could have run 400 meters at the same rate as she ran 100 meters, would she have broken the record? Find the difference between her time for 400 meters and the record time.
Answer:
Step-by-step explanation:
It appears i cant answer your question but what i can do is provide this paragraph as a trade for points. Appreciate your help. :)
The sale price of an item with a 33% discount on its list price L
The sale price of an item with a 33% discount is calculated by subtracting 33% of the list price from the list price itself. The equation for such a calculation is Sale Price = L - (33/100)*L.
Explanation:The question is dealing with the calculation of a discount on an item's list price. When an item has a list price 'L' and the discount rate is 33%, you would calculate the sale price by subtracting 33% of the list price (L) from the list price itself. It is given by the equation Sale Price = L - (33/100)*L. This calculation will give you the final price that needs to be paid for the item after the application of the discount.
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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Day Sunday Monday Tuesday Wednesday Thursday Friday Saturday Temperature (degrees F) 49 55 52 46 47 42 38 Julia measured the high temperature in her town for one week. Using the chart above, find the mean absolute deviation for the high temperatures. Round your answer to the nearest tenth. Be sure to show your work for finding: the mean of the set of data the distance of each number from the mean the mean absolute deviation
Answer:
[tex]4\dfrac{2}{7}[/tex]
Step-by-step explanation:
How to calculate the mean absolute deviation:
Step 1: Calculate the mean.
[tex]\text{Mean}=\dfrac{49+55+52+46+47+42+38}{7}=47[/tex]
Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations.
[tex]\begin{array}{ccccccc}\text{Sun}&\text{Mon}&\text{Tue}&\text{Wed}&\text{Thu}&\text{Fri}&\text{Sat}\\49&55&52&46&47&42&38\\2&8&5&1&0&5&9\end{array}[/tex]
Step 3: Add those deviations together.
[tex]\sum|\text{mean}-x_i|=2+8+4+1+0+5+9=30[/tex]
Step 4: Divide the sum by the number of data points.
[tex]\text{MAD}=\dfrac{\sum|\text{mean}-x_i|}{n}=\dfrac{30}{7}=4\dfrac{2}{7}[/tex]
Answer:
4 2/7
Step-by-step explanation:
Solve 36+57 on a number line
36
+57
------
93
On a number line: Start at 0. Count forward until you reach 36. Once you've reached 36, Mark it. Then you go forward 57, from the mark you made at 36. You should end up on 93 on the number line.
A new crew of painters takes two times as long to paint a small apartment as an experienced crew. together, both crews can paint the apartment in 4 hours . how many hours does it take the experience crew to paint the apartment
Answer:
Step-by-step explanation:
Let the inexperienced crew do the apartment in x hours.
Therefore it takes the experienced crew x/2 = 0.5x hours to do the same place.
x + 0.5x = 4 hours
1.5x = 4 hours
x = 4/1.5
x = 2.67 hours.
So the inexperienced crew does the job in 2.67 hours.
The experienced crew can do it 1/2 the time which is 1.335
Total time = 4 hours.
Answer:
4 hours
Step-by-step explanation:
I got it correct so...
Please help me!!!! Number 8 and 9.
Tiffany rented a canoe at the park for a fixed charge of $2.50 plus $1.50 per hour. She wants to stay out on the
water as long as possible,
How many hours can she use the boat and spend a maximum of $7.00
2.5 hours
3 hours
4 hours
4.5 hours
Answer:
(b) 3 hours
Step-by-step explanation:
You want the amount of time Tiffany can rent a canoe if her charges are $7, calculated as $2.50 + 1.50 per hour.
EquationAn equation for the time Tiffany can rent is ...
cost = fixed charge + hourly charge × hours
7 = 2.50 + 1.50 × hours . . . . . . use the given numbers
4.50 = 1.50 × hours . . . . . . . . . subtract 2.50
3 = hours . . . . . . . . . . . . . divide by 1.50
Tiffany can use the boat for 3 hours if she can pay $7 for rental.
Line segment QR is dilated to create line segment Q'R'
using the dilation rule Dt, 1.5
What is y, the distance between points R and R?
3 units
4 units
6 units
9 units
Answer:
The distance between R and R' is 3 units ⇒ 1st answer
Step-by-step explanation:
A dilation is a transformation that produces an image that is the same
shape as the original, but in a different size.
If the image is larger than the original figure then dilation is called an
enlargement.
If the image is smaller than the original figure then the dilation
is called a reduction.
The image of a line by dilation parallel to the original line if the original
line not passes through the center of dilation.
Line segment QR is dilated to create line segment Q'R'
∴ QR is parallel to Q'R'
The factor of dilation is 1.5
∴ The length of Q'R' is 1.5 the length of QR
In Δs TRQ and TR'Q'
∵ QR // Q'R'
∴ m∠TRQ = m∠TR'Q'
∴ m∠TQR = m∠TQ'R'
∵ ∠T is common in the two triangles
∴ ΔTRQ is similar to ΔTR'Q'
∴ [tex]\frac{TR'}{TR}=\frac{R'Q'}{RQ}[/tex]
∵ [tex]\frac{Q'R'}{QR}=1.5[/tex]
∵ TR' = TR + y
∵ Tr = 6 units
∴ TR' = 6 + y units
∵ [tex]\frac{TR'}{TR}=\frac{6+y}{6}[/tex]
∴ [tex]1.5=\frac{6+y}{6}[/tex]
Multiply both sides by 6
∴ 9 = 6 + y
Subtract 6 from both sides
∴ 3 = y
* The distance between R and R' is 3 units
Answer:
3 Units on edge
Step-by-step explanation:
Jogging is one of the few sports that has been consistently increasing over the past few years. The number of people jogging (in millions) from the years 2000 to 2009 is given by the equation y equals x plus 16, where x is the number of years after 2000.
a. Use this equation or a graph of it to complete the ordered pair (2, ).
b. Write a sentence explaining the meaning of the answer to part (a).
c. If this trend continues, how many joggers will there be in 2023?
Answer:
a. The ordered pair is (2 , 18)
b. The number of people jogging in year 2002 was 18 millions
c. There will be 39 millions joggers in year 2023
Step-by-step explanation:
* Lets explain how to solve the problem
- The equation y = x + 16 represents the number of people jogging
in millions from year 2000 to 2009 where y is the number of people
and x is the number of years after 2000
- That means at year 2000 the value of x = 0 and the number of people
jogging was 16 millions
- The equation represented graphically by line
a.
- The ordered pair (2 , ?) means x = 2 and we need to find y when x = 2
- Substitute x by 2 in the equation
∵ y = x + 16
∵ x = 2
∴ y = 2 + 16 = 18
* The ordered pair is (2 , 18)
b.
∵ y represents the number of people jogging in millions
∵ x represents the number of years from year 2000
- That means the number of people jogging in year 2002 was 18
millions
* The meaning of the answer of part (a) is :
The number of people jogging in year 2002 was 18 millions
c.
- If this trend continues means the equation will be the same for years
after 2009
∵ In year 2023 ⇒ x = 23
∵ y = x + 16
∴ y = 23 + 16 = 39
* There will be 39 millions joggers in year 2023
Probably a dumb question but how can I solve this without using a calculator? The answer when using a calculator is 0.83 so how can I get that answer without using a calculator?
Answer:
[tex] \frac{25}{30} = .83[/tex]
set it up in an old-fashioned way
using the division method. 30 on the outside and 25 on the inside
Answer:
The answer is 0.833333333 but, to nearest hundredth place is it 0.83.
Step-by-step explanation:
I don't know how they call it in your school but, what we are going to do right now is called long division.
The mass would be the dividend (25) and the volume (30) would be the divisor and the density would be the quotient.
The population of a city this year [2018] is 34,500. The population is expected to grow by 2% each year. What will be the population if the city in 2025?
A. 39,300
B. 23,180
C. 123,619
D. 39,630
Which is a better deal crayola crayons $6.97 for 120 crayons or rose art crayons $1.53 for 24?
Answer:
Crayola crayons for 6.97 dollars
Step-by-step explanation:
This is because there would only by 78 crayons in the other crayola box. I know this because you divide 120 by 1.53
Probs wrong but I tried
Answer:
6.97 for 120
Step-by-step explanation:
if you divide the number of crayons in the package by the amount of money you pay for it, they it shows you how many crayons you will get for one dollar. for the 120 for 6.97 its 17 crayons for a dollar and for the 24 for 1.53 its 12 for a dollar
Show that the slope of the segment with the endpoints ( 1/x ,1 )and ( 1/y, y/x ) does not depend on x. Provide your complete solutions and proofs in your paper homework and respond to questions or statements online.
Answer:
Step-by-step explanation:
Givens
y2 = y/x
y1 = 1
x2 = 1/y
x1 = 1/x
Formula
m = (y2 - y1) / (x2 - x1)
Solution
m = (y/x - 1) / (1/y - 1/x)
m = ( (y - x)/x ) / ((x - y)/xy)
m = (-(x - y) / x) / ( (x - y) / xy)
Invert the denominator and multiply
m = ( - (x - y) / x ) * x*y / (x - y) Notice x - y cancels.
m = ( - 1 / x ) * (x*y) Notice the xs will cancel.
m = ( - 1 / y) There are no xs anywhere. The slope is - 1/y
Answer: Hello there!
If you have the set of points (x1, y1) and (x2, y2), the slope of the segment whit this endpoints is:
[tex]a = \frac{y2 - y1}{x2 - x1}[/tex]
Now, we have the endpoints (1/x, 1) and (1/y, y/x), the slope of this segment is:
[tex]a = \frac{y/x - 1}{1/y - 1/x}[/tex]
Let's simplify it:
[tex]\frac{y/x - 1}{1/y - 1/x} = \frac{(y-x)/x}{(x - y)/x*y} = \frac{\frac{y-x}{x} }{\frac{-(y-x)}{y*x} }= y*\frac{\frac{y-x}{x} }{\frac{-(y-x)}{x} } = y*(-1) = -y[/tex]
Then the slope of the segment is a = -y, and it does not depend of x
With a tank of gas, if you can drive 475 miles, your car uses 12 miles per gallon. Write an equation to model this situation
Find the value of x. If necessary, round to the nearest tenth.
7.3 in.
10.4 in.
5.2 in.
8.8 in.
Answer:
7.3 in
Step-by-step explanation:
area = 27 = 54/2 = (x^2)/2
so what squared is 54?
7.34 whatever inches.
round it down, that's 7.3.
Answer: 7.3 in
Step-by-step explanation:
To find the the value of x, we will simply use the formula of area of a triangle, substitute the values and then solve.
From the diagram above, the height of the triangle is x and also the base of the triangle is also x, the area of the triangle is 27 sq. in
Area of a triangle = [tex]\frac{1}{2}[/tex] base × height
27 = [tex]\frac{1}{2}[/tex] × x × x
27 = [tex]\frac{1}{2}[/tex] × x²
27 = [tex]\frac{x^{2} }{2}[/tex]
cross multiply
2 × 27 = x²
54 = x²
Take the square roots of both-side
√54 = √x²
7.3 = x
x = 7.3
Therefore the value of x is 7.3 in.
What is the value of x?
x + 1/3 = 9
Enter your answer in the box in simplest form.
Answer:
x= 8 2/3
Step-by-step explanation:
subtract 1/3 from both sides. 9-1/3 is 8 and 2/3.
CD contains the points C at 4, D at 0, and E at 2.
What is the ratio of CD to DE? Complete the
statements using the number line.
The length of CD is units
The length of DE is units
The ratio of CD to DE is
Answer:
the length of CD is 4
the length of DE is 2
the ratio of CD to DE is 2:1
Step-by-step explanation:
The length of segment CD is 4 units and segment DE is 2 units. The ratio of CD to DE is 2:1.
Explanation:To solve this problem, remember that points on a number line correspond to numbers and the lengths between the points correspond to the differences between these numbers.
The segment CD stretches from 0 to 4, hence the length of CD is 4 units.
The segment DE stretches from 2 to 0, hence the length of DE is 2 units.
However, since length cannot be negative, we take the absolute value of -2, which gives DE = 2 units.
Now, to find the ratio of CD to DE, we simply divide the length of CD by the length of DE.
The ratio of CD to DE can be found by dividing the length of CD by the length of DE. So, the ratio is 4/2 = 2.
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What is 12 divided by 3/4
The rule for division by a fraction is "change to multiplication by the reciprocal."
So you want(4/3)(12) which is 4(4) = 16
[tex]\bf 12\div \cfrac{3}{4}\implies \cfrac{12}{1}\div\cfrac{3}{4}\implies \cfrac{\stackrel{4}{~~\begin{matrix} 12 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{1}\cdot \cfrac{4}{~~\begin{matrix} 3 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies 16[/tex]
find endpoint with given endpoint and midpoint
Answer:
(21, 17 )
Step-by-step explanation:
Using the midpoint formula and equating to the coordinates of the midpoint.
Let endpoint 2 have coordinates (x, y ), then
0.5(x - 3) = 9 ( multiply both sides by 2 )
x - 3 = 18 ( add 3 to both sides )
x = 21
and
0.5(y - 5) = 6 ( multiply both sides by 2 )
y - 5 = 12 ( add 5 to both sides )
y = 17
endpoint 2 = (21, 17 )
Given the fuction h (x) = x^2 + 2x -3, find the value of h (2) - h (-4)
Answer:-
0
Step-by-step explanation:
h(x) = x^2 + 2x -3
x = 2
h(2) = 2^2 + 2(2) - 3
h(2) = 4 + 4 - 3
h(2) = 8-3
h(2) = 5
x = - 4
h(-4) = (-4)^2 + 2(-4) - 3
h(-4) = 16 - 8 - 3
h(-4) = 16 - 11
h(-4) = 5
========
h(2) - h(-4)
5 - 5
0
A town’s population has increased 35% during the last 8 years and is now 50,100 people. What was the population 8 years ago?
To find the population 8 years ago, we can set up an equation and solve for the original population. The population 8 years ago was approximately 37,000 people.
Explanation:To find the population 8 years ago, we need to calculate the original population before the 35% increase. Let's assume the population 8 years ago was P.
Since the population has increased by 35% over the last 8 years, we can set up the equation: P + 0.35P = 50100
Simplifying the equation, we have: 1.35P = 50100
Divide both sides of the equation by 1.35 to solve for P: P ≈ 37000
Therefore, the population 8 years ago was approximately 37,000 people.
HI I NEED HELP IVE BEEN DOING HOMEWORK FOR 6 HOURS ummmmm anyways, how do i express this (y^3•y^6 - in picture) in exponential form? i’m stupid so it would mean a lot
y^3 = y * y * y
y^6 = y * y * y * y * y * y
Answer:
Step-by-step explanation:
In the past,younglin has painted a total of 5 pictures.She now intends to paint 7 pictures every two weeks.Make a table showing the total number of pictures younglin will have painted at the end of every two weeks.
Answer: see table
Step-by-step explanation:
The number of weeks are multiples of 2 (every 2 weeks) and the number of paintings are multiples of 7 (7 paintings every 2 weeks).
[tex]\begin{array}{c|c}\underline{\text{Week}}&\underline{\text{Paintings}}\\2&7\\4&14\\6&21\\8&28\\10&35\\12&42\\14&49\\16&56\\18&63\\20&70\end{array}[/tex]
Use a radical sign to indicate the negative square root of 34.68. Then evaluate the expression to two decimal places using a calculator.
Answer:
-5.89
Step-by-step explanation:
we have that
The expression of the negative square root of 34.68 is equal to
[tex]-\sqrt{34.68}[/tex]
Using a calculator evaluate the expression
[tex]-\sqrt{34.68}=-5.89[/tex]
Perpendicular to y=1/2-1, x-intercept at4
Answer:
it would be Y= -2x+4
Step-by-step explanation:
To begin, we know that the b value is 4, because that is the x-intercept that is information given, so we can atomatically put that in.
Next we need to find the m value, which can be found by knowing the rules of a perpendicular eqution. to change it you must change the 1/2 and flip the equation and change the signs
soooooo 1/2 would change into 2/1 which is 2 and we would addd the negative sign so
Y=-2x+4
Answer:
the desired equation is y = -2x + 8.
Step-by-step explanation:
Given a line with slope 1/2, we find the negative reciprocal of that to obtain the slope of a line perpendicular to the given line: m = -2.
Recall that at an x-intercept, y = 0. Here we're told that the x-intercept is (4, 0). Therefore, y = mx + b becomes 0 = -2(4) + b, or b = 8.
Then the desired equation is y = -2x + 8.