Answer:
When a dilation in the coordinate plane has the origin as the center of dilation, you can find points on the dilated image by multiplying the x- and y-coordinates of the original figure by the scale factor.
Step-by-step explanation:
The price of Maryam’s grocery bill was reduced from $80 to $60. By what percentage was her grocery bill reduced?
Answer:
25%
Step-by-step explanation:
have a good day! :)
A certain television is advertised as a 54-inch TV (the diagonal length). If the width of the TV is 40 inches, how tall is the TV? Round to the nearest tenth of an inch.
Answer:
36.3
Step-by-step explanation:
I tried using the Pythagorean Theorem to measure the length (tallness) of the TV.
[tex]a^2 + b^2 = c^2[/tex]
[tex]a^2 + (40)^2 = (54)^2[/tex]
[tex]a^2 + 1600 = 2916[/tex]
[tex]a^2 = 2916-1600 = 1316[/tex]
[tex]a = \sqrt{1316}[/tex]
[tex]a = 36.27671429[/tex]
When this is rounded up to the nearest tenth, it would go up to 36.3.
So, the length (tallness) of the TV would be 36.3 inches.
The price of 2 ratios are in x:y when the prices both increase by £20, the ratio becomes 5:2 when the prices both reduce by £5 the ratio becomes 5:1 express the x:y ratio in the lowest form
Answer:
x:y = 4:1
Step-by-step explanation:
Since their ratios are x:y, when they both increase by £20, their ratio is 5:2.
So, x + 20/(y + 20) = 5/2 (1)
When they both decrease by £5, their ratio is 5:1.
So, x - 5/(y - 5) = 5/1 (2)
Simplifying (1) and (2), we have
x + 20/(y + 20) = 5/2 (1)
cross-multiplying, we have
2(x + 20) = 5(y + 20)
expanding the brackets, we have
2x + 40 = 5y + 100
2x - 5y = 100 - 40
2x - 5y = 60 (3)
So,
x -5/(y - 5) = 5/1 (2)
cross-multiplying, we have
(x - 5) = 5(y - 5)
expanding the brackets, we have
x - 5 = 5y - 25
x = 5y - 25 + 5
x = 5y - 20 (4)
Substituting (4 into (3), we have
2x - 5y = 60 (3)
2(5y - 20) - 5y = 60
10y - 40 - 5y = 60
10y - 5y = 60 + 40
5y = 100
y = 100/5 = 20
substituting y = 20 into (4), we have
x = 5y - 20 (4)
x = 5(20) - 20
x = 100 - 20
x = 80
So, x/y = 80/20 = 4
x/y = 4/1
x:y = 4:1
Which expression means "multiply 3 by the sum of m and p"?
Answer: A
Step-by-step explanation:
The sum of m and p --> (m + p)
(Because sum means addition)
Multiply 3 by --> × 3
--
Combined that would be either:
3 × (m + p)
or
(m + p) × 3 --> which is option A
Have a good day :)
option A.(m+p)×3
is the correct answer
hope it helps you have a good day
please mark me as brain list
Drop your favorite American Horror Story character for 5 easy points
Answer:
the clown plz mark brainliest
Answer:
TATE AND BROOKE THOMPSON or any of emma roberts characters
-30 = -5
Pls help
...
Answer:
-25
Step-by-step explanation:
-30+5 = -25
What is the distance between-2 and 2 on the number line shown below -
Answer:
3
Step-by-step explanation:
on less you have a picter i cant help that much
Answer: The distance is 4
Step-by-step explanation:
-(-4)-(-3)-(-2)-(-1)-0-(1)-(2)-(3)-(4)-
^ 1 2 3 4 ^
~ ~ ~ ~
You observe the heights of two plants for an experiment. Plant A has a height of 8 centimeters and grows 1 centimeter each week. Plant B has
a height of 4 centimeters and grows 2 centimeters each week. Let x represent the number of weeks and let y represent the height of the
plant
a. Write a system of linear equations that represents this situation
System of equations:
b. Will the plants ever have the same height?
Using linear functions, it is found that:
a)
[tex]y_A(x) = 8 + x[/tex]
[tex]y_B(x) = 4 + 2x[/tex]
b) They will have the same height after 4 weeks.
A linear function has the following format:
[tex]y = mx + b[/tex]
In which:
m is the slope, which is the rate of change.b is the y-intercept, which is the value of y when x = 0.Item a:
Plant A has a height of 8 centimeters and grows 1 centimeter each week, hence:
[tex]y_A(x) = 8 + x[/tex]
Plant B has a height of 4 centimeters and grows 2 centimeters each week, hence:
[tex]y_B(x) = 4 + 2x[/tex]
The system is:
[tex]y_A(x) = 8 + x[/tex]
[tex]y_B(x) = 4 + 2x[/tex]
Item b:
Equaling the equations:
[tex]y_A(x) = y_B(x)[/tex]
[tex]8 + x = 4 + 2x[/tex]
[tex]x = 4[/tex]
They will have the same height after 4 weeks.
To learn more about linear functions, you can take a look at https://brainly.com/question/16302622
I need the explanation the most.
Answer and I you will get 8 years of good luck
Answer:
i think 8
Step-by-step explanation:
what operation do you use to convert from a larger measurement unit to a smaller measurement unit? Explain why
Answer:
Use multiplication and dividing.
Step-by-step explanation:
If you want to convert to a smaller unit, you must multiply.
For example...
4 Feet to Inches:
[tex]4 * 12 =48[/tex] inches
2 Yards to Inches:
[tex]2 * 3 = 6[/tex] feet
[tex]6 * 12 = 72[/tex] inches
If you want to convert to a larger unit, you must divide.
336 Inches to Feet:
[tex]336/12=28[/tex] feet
756 Inches to Yards:
[tex]756/12=63[/tex] feet
[tex]63/3=21[/tex] yards
The perimeter of a square is 100. The side length is represented by 2x+3. Solve for x.
Answer:
4×side length=perimeter of the square
4×(2x+3) = 100
2x+3 = 25
2x=25-3=22
x=11
Write an equation that you can use to find the value of x. Perimeter of triangle: 16 in ANSWER 3x
Answer:
16 x 3? I'm not sure I understand sorry.
A ladder leaning against a wall makes an angle of 75° with the ground. If the foot of the ladder is 6 feet from the base of the wall, what is the length of the ladder?
Answer:
the length of the latter would be 23 feet because we know one angle is 75 and the angle against the wall is 90 and the base is 6 feet answer is 23 feet
Step-by-step explanation:
To solve this problem, we make use of the geometry that forms between the wall, the floor and the ladder. A rectangular triangle is formed due to the right angle on the wall
Make sure to see the picture
Answer:
zcvdbvngffnn
Step-by-step explanation:
A rope is stretched from the top of a
7-foot tent pole to a point on the ground
12 ft from the base of the pole. How long
is the rope ?
Answer:
Step-by-step explanation:
we know two sides of a triangle, one side is 7 feet, the other is 12 feet , so use Pythagoras theorem
[tex]C^{2}[/tex] = [tex]A^{2}[/tex] + [tex]B^{2}[/tex]
[tex]C^{2}[/tex] = [tex]7^{2}[/tex] + [tex]12^{2}[/tex]
[tex]C^{2}[/tex] = 49 + 144
[tex]C^{2}[/tex] = 193
C = [tex]\sqrt{193}[/tex]
C = 13.89 feet
Answer:
The square of the hypotenuse equals the square of the sum of the other two sides.
13.89ft
Step-by-step explanation:
Definition Of Pythagoras Theorem :The Pythagorean theorem states that the total of the squares on a right triangle's legs equals the square on the hypotenuse (the side opposite the right angle)—or, in popular algebraic form, a2 + b2 = c2.
Given:Height of the Tent Pole = 7ft.
Base of the Pole of the Tent = 12ft.
Now we will use Pythagoras theorem to find how long the rope is.
Use of Pythagoras theorem
[tex]\begin{aligned}&C^{2}=A^{2}+B^{2} \\&C^{2}=7^{2}+12^{2} \\&C^{2}=49+144 \\&C^{2}=193 \\&C=\sqrt{193} \\&C=13.89 \text { feet }\end{aligned}[/tex]Hence, the length of the rope is 13.89ft.
To know more about Pythagoras theorem here
https://brainly.com/question/343682 #SPJ2
A swimming pool that is 10 feet, 20 feet long, and 4 1/2 feet deep. how much water can this swimming pool hold (to the top of the pool)?
Answer:
900 cubic feet
Step-by-step explanation:
Volume = length x width x height
= 10 x 20 x 4.5
= 900
What is the fractional form of 0.02?
А. 2/99
B. 1/11
C. 2/100
D.1/12
Why can't 6cm 5cm 8cm make a triangle
Answer:
They can, the lines just need to be sloped
what's the answer ?
[tex] \sqrt{450 \div 2} [/tex]
Answer:
15.
Step-by-step explanation:
450 / 2 = 225.
225= 3 * 3 * 5 * 5
So √225 = 3 * 5 = 15.
[tex]\huge{ \mathbf{ \underline{ Answer} \: \: ✓ }}[/tex]
Let's solve :
[tex] \sqrt{ \dfrac{450}{2} } [/tex][tex] \sqrt{225} [/tex][tex]15[/tex]_____________________________
[tex]\mathrm{ ☠ \: TeeNForeveR \:☠ }[/tex]
39. If one student can complete the decorations for the prom in 5 days
working alone, another student could do it in 3 days, and a third could
do it in 4 days, how long would it take them working together?
Answer:
1.3 days
Step-by-step explanation:
1/5+1/4+1/3
12/60+20/60+15/60= 47/60
60/47
=1.3
Help me with this please
Answer:
1. 5
2. 8
Step-by-step explanation:
HELP I WILL GIVE BRAINIEST
Answer:
13.7
Step-by-step explanation:
It forms a triangle.
They are trying to find the height, cause they say the east-bound car went east so that makes the bottom of the triangle, the width. They also give is the distance in between both cars so that's the hypotenuse so let's set up the equation...
15² - 6² = 189
now we square root it
√189 = 13.7
If you had a triangle with side lengths of 4 and a scale factor of 3, what would be the new side lengths of the triangle?
Answer:
1.3
Step-by-step explanation:
new side lengths = original length / scale factor
4/3 = 1.3
what is 3.5 x 10 to the 4th power in standard notation? (decimal)
Answer:
35000 would be your answer
Step-by-step explanation:
5. A ball is thrown into the air from the edge of a 48-foot-high cliff so that it eventually lands
on the ground. The graph below shows the height, y, of the ball from the ground after x
seconds
For which interval is the ball's height always decreasing?
A. 0
B. 0
C. 2.5
D.) 2
Can 1-9 be solved please ANSWER FAST!!!
Answer:
1) solution
2x+3*5x=34
2x+15x=34
17x=34
x=34/17
x=2
2) solution
2*4y+3y=44
8y+3y =44
11y=44
y=44/11
y=4
3) solution
4y+5=3y-2
4y-3y=-2-5
y= -7
4) solution
2x+3=4x-1
3+1=4x-2x
4=2x
x=4/2
x=2
5) solution
4(y-1)=3y+3
4y-1=3y+3
4y-3y=3+1
y=4
6) solution
2(1/2y +3)-y=6
2/2y+3-y=6
y+3-y=6
2y=6
y=6/2
y=3
7) solution
8x+2(-4x+11)=13
8x-8x+11=13
11=13
8) solution
2x-3x-9=-4
-x=-4+9
-x=5
x= -5
9) solution
3(3y+1)-5y=11
9y+3-5y=11
4y=11-3
y=8/4
y=2
please marks brainliest I had to spend lot of time typing this.
What value from the set {4, 5, 6, 7, 8} makes the equation 4x + 3 = 23 true? Show your work
Answer:
Um?
Step-by-step explanation:
2. It takes 1 3/8 minutes to wrap a parcel and 1/2 minute to address it. How many minutes does it take to:
(a) wrap and address one parcel? Give your answer as a fraction
(b) wrap and address a dozen similar parcels?
Answer:
45/2
Step-by-step explanation:
U first have to change the mixed number to improper fraction and find the least common multiple
The dot plots show the numbers of miles Nicole rode on her bicycle on several days in two
different months.
March
April
X
>
10
10
Number of Miles Biked Each Day
Number of Mies Biked Each Day
Which statement is best supported by the information?
A. The distribution of the data is approximately symmetrical for both sets of data
B. The mean of the number of miles Nicole rode each day in April is greater than the mean of
the number of miles Nicole rode each day in March
C. The range of the number of miles Nicole rode each day in March is equal to the range of the
number of miles Nicole rode each day in April
D. The median of the number of miles Nicole rode each day in March is less than the median
of the number of miles Nicole rode each day in April
No
Give The measures of the angle that is complementary to the given angle
36
Step-by-step explanation:
We know that
Sum of two complementary angles is 90°Let the other angle be xSo[tex] \rm \dashrightarrow \: x + 54 = 90 \\ \rm \dashrightarrow \: x = 90 - 54 \\ \rm \dashrightarrow \: x = 36[/tex]50 POINTS PLZ HELP NO LINKS This renewable energy project promises to provide numerous benefits to our state. These include an increase in jobs and a secure and sustainable source of energy. This project will make dollars and make sense for all of us. What effect is the underlined phrase meant to have on the argument?
1 It intends to show how important jobs in renewable energy will become.
2 It emphasizes humor to help make the subject more interesting to readers.
3 The pun on sense helps call attention to the economic soundness of the project.
Answer: 3 The pun on sense helps call attention to the economic soundness of the project.
Step-by-step explanation:
The underlined phrase is the last statement and it is a pun that is meant to show that the plan is a good one because it will both increase jobs and is good for the environment which means that it is sound from both an economic and an environmental perspective.
In using the pun, the entire argument for the project was summarized to show the basic benefits of the plan and show how it would benefit the people.