A shape is shown on the centimetre grid below.
+
Work out the area of the shape
after it has been enlarged by
scale factor 2
State the units of your answer.
Answers
The area of the figure after dilation would be 20 square units.
What is scale factor? How it is used in Dilating coordinates?
Scale factor is used to compare 2 quantities, indicating by how much one quantity is greater than the other. It is denoted by K. Mathematically-
K = a/b.
If a coordinate point (x, y) is dilated by a scale factor of [k], then the coordinate point after dilation will be - (kx, ky).
Given is the 2 - D figure as shown.
Assume the length of each side as 1 units. Then after the dilation by K = 2, each side would be of 2 units. Then, the area of the figure would be -
A = 5(2 x 2) = 5 x 4 = 20 square units
Therefore, the area of the figure after dilation would be 20 square units
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Related Questions
Use elimination to solve each system of equations.
4x + y = 23
3x - y = 12
Use elimination to solve each system of equations.
4x + y = 23
3x - y = 12
Answers
Answer:
x=5
y=3
Step-by-step explanation:
7x=35
x= 5
3 x 5 - y= 12
15-y = 12
y= 15 - 12
y= 3
so , 5, 3
hope it helps !
The Value of x is???
Answers
Answer:
30
Step-by-step explanation:
An economy package of cups has 400 green cups. If the green cups are 20% of the total package, how many cups are in the package?
Answers
Answer:
80 cups
Hope that helps! :)
can someone solve this for meh ?
Answers
WILL GIVE BRAINLIEST ASAP PLZ
Answers
Answer:
Therefore the answer is B)
Step-by-step explanation:
so we have to find the inverse function.
g(x) = -1/(x-2) +3
y = -1/(x-2) +3
x = -1/(y-2)+3
x - 3 = -1/(y-2)
(x - 3)^-1 = -(y-2)^-1*-1
1/(x-3) = -y+2
1/(x-3) -2 = -y
-1(-y) = -1[1/(x-3) -2]
y = -1/(x-3) + 2
or y = 1/(-x+3) + 2
Matches B)
What is the solution to the linear equation? 6k + 10.5 = 3k + 12
○ k = 0.5
○ k= 2
○ k = 7.3
○ k = 9
Answers
The answer cannot be
k = 2 or k = 7.3 or k = 9 because at the very end of the equation you must divide 3 on both sides. 1.5 / 3 is 0.5
Answer:
k=0.5
Step-by-step explanation:
6^9 divided by 6^7 what’s the answer?
Answers
Answer:
6^2
Step-by-step explanation:
6^9:6^7 = 6^(9-7) = 6^2
Please help, giving brainliest too whoever answers first
Answers
Answer:
A
Step-by-step explanation:
HELP PLEASE (20 Points & Brainliest)
If cot A is undefined, then A =?
P.S. If you respond just for points, you will be reported.
Answers
Answer:
the answer is 1/0
Step-by-step explanation:
don't forget to brainllest:)
210 minutes- = how many minutes ?
Answers
Answer:
210?
Step-by-step explanation:
join remind class code is d394k3. it is just for fun.
Answer:
3 and a half hour; 3 hours 30 minutes
Step-by-step explanation:
have a nice day :)
Helppppppppp I can’t do math
Answers
Answer:
i believe its C
Step-by-step explanation:
the buses in the school parking lot can carry a total of 626 students some of the buses can carry up to 66 students in the remainder of the buses can carry up to 74 students this situation can be represented by the equation 66x + 74y = 626 in this equation what does x represent
Answers
For a science experiment, Mr. Barrows divides 3/4 cup of salt into small jars, each containing 1/10 cup. If he has 1/7 cup of salt left over, how many jars does he fill? Enter an expression you could use to solve the problem.
Answers
Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
Initial cup of salt = 3/4 cups ; divided into small jars
Fraction of salt in small jars = 1/10 cup
Fraction left over = 1/7 cup
Number of jars filled?
The fraction divided into the jars :
Initial amount - left over
3/4 - 1/7
(21 - 4) / 28
17 / 28
Fraction of salt per jar = 1/10
Number of jars filled :
Total fraction divided into jars / fraction of salt per jar :
(17 / 28) ÷ (1 /10)
(17 / 28) * (10 / 1)
170 / 28
= 6.0714
= 6 jars
If 1+1=Flamingo, what does 2+2 equal? I really need this answered along with the explanation.
Answers
If 3(x-4)-x is equal to 26 what is the value of x
Answers
Answer:
19
Step-by-step explanation:
3(x-4)-x=26
3x-12-x=26
2x=38
x=19
Complete the square to solve the equation below.
Check all that apply.
x2 - 10x - 4 = 10
A. -10- 724
B. 10+ 1/24
C. 5- 39
O D. 5+ 39
Answers
Answer:
c and d
Step-by-step explanation:
Answer:C and D
Step-by-step explanation:
Does the equation y = 7.2x represents a direct proportion?
Answers
Answer:
Yes the equation represents a direct proportionStep-by-step explanation:
We are given the expression
[tex]y = 7.2x[/tex]------- expressing the relationship between y and x
one way to know if the expression shows a direct proportionality is to answer the question, does y increase if x increases?
let us plug two values for x and see what happens to y
for x=3
y=7.2(3)
y=21.6
for x=4
y=7.2(4)
y=28.8
for x= 2
y=7.2(2)
y=14.4
From our observations when x increases the value of y increases and vice versa, hence there exist a direct proportionality
If the wingspan of the airplane on the blueprint is 15 centimeters long, what is the wingspan of the actual airplane?
1 centimeter = 2.5 meters
A. 6 meters
B. 15 meters
C. 30.5 meters
D. 37.5 meters
Answers
A student correctly writes the equations of two lines based on their graphs. Line 1 y = − 5 2 x Line 2 y = − 5 2 x + 8 Which statement about the graphs of the lines is true? Only Line 2 intersects the y -axis at the origin. Only Line 2 intersects the y -axis at the origin. Only Line 1 intersects the y -axis at the origin. Only Line 1 intersects the y -axis at the origin. Neither Line 1 nor Line 2 intersects the y -axis at the origin. Neither Line 1 nor Line 2 intersects the y -axis at the origin. Both Line 1 and Line 2 intersect the y -axis at the origin.
Answers
Explanation
Y=Mx+b
M= slope B= y-intercept
When it’s only y=mx the interception occurs (0,0) aka the origin
6c + 11 = 2c + 59
answer - 12
Answers
Answer:
Yes the answer is 12.
Step-by-step explanation:
6c + 11 = 2c + 59
6c - 2c = 59 - 11
4c = 48
dividing both sides by 4:
c = 12.
PLEASE HELP WILL GIVE brainliest if it helps :)
A school vending machine sells cartons of milk and juice. On a typical day: INo cartons are sold between 7 A.M. and 8 A.M., or from 5 P.M. onward the machine has a capacity of100 cartons. At 7 A.M., it is three-quarters full. From 8 A.M to 10 A.M. 10:15 A.M. to noon, and from 1 P.M. to 3 P.M. the students are in class. The machine is filled at11 A.M. and at 4 P.M. Sketch a graph of the number of cartons in the vending machine as a function of time. Explain what each section of the graph represents.
Answers
Answer:
i cant do the graph rn but the slope would be y=4x-2
Step-by-step explanation:
Help ASAP please. I want to quit brainly right now because nobody answers my questions
Ron’s class donated d dollars to a local charity. Danny’s class donated 21% more than Ron’s class. Which expression shows the amount Danny’s class donated in terms of the amount donated by Ron’s class?
A. 1.21d
B. 0.79d
C. d + 0.79d
D. d + 0.21
Answers
Answer:
D+0.21
Step-by-step explanation:
Find the Y and X interprets for:
5x-10y= 30
Answers
Answer:
x-intercept: 6
y-intercept: -3
Step-by-step explanation:
5x - 10y + 30
Start with: 5x = 30
divide the 5 with 30:
5x = 30
5 5
and 30 divide 5 is 6.
then do: -10y = 30
-10y = 30
-10 -10
30 divide -10 is -3.
I don´t really know how to explain it but yeah, there you go
Anyways, have a nice day and your welcome!
29 points if u can help me with this!
Look for any properties used in these equations. Choose ALL equations that correctly apply properties of operations.
Answers
Answer:
B, C, and D
Step-by-step explanation:
B
C
D
Answer:
IT B, C, and D
Step-by-step explanation:
B, C, and D are the right answers. Mark me brainliest please.
A container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of peppermint gum to spearmint gum is 2 : 3. Find the number of pieces of spearmint gum in the container.
I WILL GIVE YOU BRAINLIEST PLEASE HELP
Answers
Answer:
27 is your answer
Step-by-step explanation:
if 2;3 is your ratio and u have 18 peppermint gum then divide 18 by 2 and u get 9 then u multiply 9 by 3 and u get 27
The total number of spearmint gums will be 27
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is that a container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of peppermint gum to spearmint gum is 2 : 3.
Let the number of spearmint gum be {x}. So, we can write -
2/3 = 18/x
{x} = (18 x 3)/2
{x} = 27
Therefore, the total number of spearmint gums will be 27.
To solve more questions on algebraic expressions, visit the link below -
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Find the value of x (3x+38)5x
Answers
Answer:
19
Step-by-step explanation:
3x = -38 + 5x
3x + -5x = -38 + 5x + 5x
3x + -5x = -2x
-2x = -38 + 5x + -5x
5x + 5x =0
-2x = -38 + 0
-2x = -38
-2x / -12 = 38 / -2
x=19
these are the steps taken to produce a final result
Answers
Answer: The answer is procedure
Step-by-step explanation:
A procedure is a process that happens
will be marking brainlest if you can help me in under 10 minutes :DD
Answers
Answer:
The dvd rentals cost more than the viddeo game rentals
Step-by-step explanation:
Help me with my math ASAP!!!!
Answers
Answer:
[tex]f[/tex] = 78
[tex]g[/tex] = 3.5
Step-by-step explanation:
First we need to find [tex]f[/tex].
We can use the equation [tex]72 + (f + 30) = 180[/tex] to solve for [tex]f[/tex].
We can then change that equation to [tex]72 + f + 30 = 180[/tex], since the Commutative Property of Addition says that you can have any addition in any order.
Now, we can solve the equation.
[tex]102 + f = 180\\(102 - 102) + f = 180 - 102\\f = 78[/tex]
Now that we solved [tex]f[/tex], we can now solve for [tex]g[/tex].
Since 25 equals [tex]8g -3[/tex], we can solve the equation [tex]8g - 3 = 25[/tex].
Here is how you solve it:
[tex]8g - 3 = 25\\8g + (-3 + 3) = 25 + 3\\8g = 28\\g = \frac{28}{8}[/tex]
Since [tex]\frac{28}{8}[/tex] equals 3.5, which is the simplest form, that is the answer.
Hope this helps, and please mark me brainliest! :)
it snowed 7/8 inches on Monday. on Tuesday it snowed 1/4 inches less than it did on Monday. how much did it snow on tuesday HELP PLS ASAP
Answers
Answer:
I put 7/8 - 1/4 in a calculator and got 5/8
Step-by-step explanation:
