A circle with a radius of r units is dilated by a scale factor of 7 to create a new circle. Which statement about the area of the new circle is true?
A. The area of the new circle is 7 times the area of the original circle.
B. The area of the new circle is 14 times the area of the original circle.
C. The area of the new circle is 49 times the area of the original circle.
D. The area of the new circle is squared root 7 times the area of the original circle.
Answer:
A
Step-by-step explanation:
The scale factor can be defined as the ratio of new dimension of an object after scaling to the original dimension. The are of the new circle is 49 times the area of the original circle. The correct answer is option C.
What is Scaling factor ?Scaling factor is a conversion factor used to change the size of a figure without changing its shape. When the size of a figure is increased, it called scaled up and when it decreases it is called as scaled down.
Given that, Scale factor of circle = 7.
Since, the scale factor of a circle is the ratio of new radius to original radius.
The new radius of circle can be written as,
r' = 7r
Thus, the area of new circle is π × (r')^2= π × (49r^2).
Hence, the area of new circle is 49 times the original circle.
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If x=6 and y=−2, evaluate the following expression:x+y
Answer:
4
Step-by-step explanation:
x + y = 6 + (-2) = 4
If MJ = 30, KL = 32, and ML = 40, what is MK?
Answer:
MK = 80
M= 10
K= 8
In AIJK, the measure of ZK=90°, the measure of ZI=46°, and IJ = 9.2 feet. Find the
length of JK to the nearest tenth of a foot.
J
9.2
X
46
K
Answer: 6.6
Step-by-step explanation:
Which statement can be modeled by x + 3 ≤12? *
Answer:A
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Hope this helps.
Plzzz HURRY IM BEING TIMED!!! What is the area of a square with side length of 4 1/4 m? O 8m squared O 17m squared? O 187 m squared O 204 m squared
Answer:
The answer should be 18.06 but I don't see that as a choice
A grocery store sells a bag of 6 oranges for $3.84. What is the cost of oranges, in
dollars per orange?
Answer:
Each orange would cost $0.64.
Step-by-step explanation:
If you do 3.84 and divide that by 6, you would get the answer of $0.64 for each orange.
Unit rate is the quantity of an amount of something at a rate of one of another quantity.
The cost of one orange is $0.64
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
6 oranges = $3.84
Divide both sides by 6.
1 orange = $3.84/6
1 orange = $0.64
Thus,
The cost of one orange is $0.64.
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a shopkeeper buys a stove from a manufacturer for $100. What is the selling price if he makes a profit of 15%
Answer:
115% I think
Step-by-step explanation:
I need help how to do it and give me the answers show your work please no links and I will make you brainily person and give you points.
Answer:
Could you post the question in the comments?
Step-by-step explanation:
I need help please!!!
Answer:
A
Step-by-step explanation:
PLEASE HELP ASAP WILL GIVE BRAINLIEST PLEASE EXPLAIN! ASAP
Answer:
see explanation
Step-by-step explanation:
(a)
The equation of a line in slope- intercept form is
y = mx + c
Given
y - 3 = - 4(x + 2) ← distribute
y - 3 = - 4x - 8 ( add 3 to both sides )
y = - 4x - 5 ← in slope- intercept form
(b)
The equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
From the slope- intercept form
y = - 4x - 5 ( add 4x to both sides )
4x + y = - 5 ← in standard form
Please help I’m struggling
Answer:
I believe the answer is 23.
Step-by-step explanation:
90-67=23
PLEASE HELP I WILL MARK BRAINLIEST!!
After a parade there were 4 tons of trash to be picked up. By the end of the
day, volunteers had picked up 7,200 pounds of trash. Hon marvy pounds of trash
were still left to be picked up at the end of the day
Please help and show all workings
If [tex]ac^3+bx^2+c[/tex] is divided by (x-3) then the remainder is:
Silly answers will not be tolerated
Answer:
27a + 9b + c is reminder
Step-by-step explanation:
Remainder theorem says that when p(x) is divided by (x – a) the remainder is given
by p(a)
Let p(x) = ax³ + bx²+ c
P(x) when divided by (x – 3)
Using Remainder theorem, we have
Remainder = p(3) = a(3³) + b(3²) +c
= 27a + 9b + c
find the solution of given expression
[tex] \sqrt{652 \times 652} [/tex]
Answer:
652
Step-by-step explanation:
[tex]\sqrt{652 \times 652}[/tex] is equal to [tex]\sqrt{652^{2} }[/tex], and the square root of a number squared is always the original number, so [tex]\sqrt{652^{2} }[/tex] is equal to [tex]652[/tex].
Answer:
√{652×652}=√652²=±652
Step-by-step explanation:
Which number is equivalent to 6%? Select all that apply.
6.0
0.06
0.6
6/100
3/50
Answer:
0.06 and 6/100
Step-by-step explanation:
Please Help
The expression represents the distance in feet an object falls after seconds. The object is dropped from a height of 906 feet.
What is the height in feet of the object 2 seconds after it is dropped?
Write an expression representing the height of the object in feet seconds after it is dropped.
Answer:
[tex]842\ \text{ft}[/tex]
[tex]y(t)=906-16t^2[/tex]
Step-by-step explanation:
Let [tex]y[/tex] be the height the object from the ground.
[tex]s[/tex] be the initial height of the object = 906 ft
[tex]u[/tex] = Initial velocity = 0
[tex]g[/tex] = Acceleration due to gravity = [tex]32\ \text{ft/s}^2[/tex]
[tex]t[/tex] = Time
The expression would be
[tex]y(t)=s-ut-\dfrac{1}{2}gt^2\\\Rightarrow y(t)=906-16t^2[/tex]
The required expression is [tex]y(t)=906-16t^2[/tex]
At [tex]t=2\ \text{s}[/tex]
[tex]y(2)=906-16\times 2^2\\\Rightarrow y(2)=842\ \text{ft}[/tex]
The height of the object after 2 seconds of falling is [tex]842\ \text{ft}[/tex].
what's the value of
[tex] \sqrt{2 \times 2} [/tex]
Answer:
2.82842712475
Step-by-step explanation:
hope it helps.....
Answer:
√{2×2}=√2²=±2 is your answer
what are solid shapes
Answer:formele solide sun obiectele care sunt tari dexemple piatra telefonul cubul ele sunt solide
Step-by-step explanaton:
DEFINITION-;
three dimensional figure have Length breadth and height and which have a fixed shape and accupies shapes are called solids
the line segment which to focus in solid meet is called its when three or more faces of a solid meet at one point with point is known as vertex
TYPES
CUBOID
a solid bounded by six rectangular play spaces is called a cuboid
ELEMENT OF CUBOID
it has 6 faces it has 8 vertex it has 12 edge2 CUBE
a solid cube whose all three dimension Length breadth and height are equal called cube
element of cube
it has 6 faces 8 vertex and 12
3 PRISM
a Prism is a solid whose side faces are rectangle and in the identical polygon in parallel planes
4 PYRAMID
a pyramid is a solid whose base is a flat plane rectilinear figure which may be triangular square rectangular or polygonal the side face of a pyramid are Triangles having a common vertex
5 CONE
it is a solid with a circular base and all is other purpose meet it common point known as vertex
6 CYLINDER
it is a solid with two circular base also if the cross section of prism is circle then is known as cylinder
If Rihanna deposite 1500 rupees in the school fund at 9 p.C.P.A for 2 years, what is the total amount she will get?
Answer: 1770 rupees
Step-by-step explanation:
To solve this, we first calculate the simple interest which will be:
= (P × R × T) / 100
= (1500 × 9% × 2) / 100
= (1500 × 0.09 × 2) / 100
= 270
The total amount tha she'll get will be:
= 1500 + 270
= 1770 rupees
i need help on the problem that is in the png so plz answer and thank you!
Find SY and XY. Will Give Brainliest for correct answer.
Answer:
SY = 16
XY = 12
Step-by-step explanation:
15/20 = 12/SY
15SY = 240
SY = 16
15/20 = 9/XY
15XY = 180
XY = 12
Which statement is true?
A pound is 8 times as heavy as an ounce.
A pound is 10 times as heavy as an ounce.
A pound is 12 times as heavy as an ounce.
A pound is 16 times as heavy as an ounce.
Answer:
a pound is 16 times as heavy as an ounce
Answer:
Option 4
Step-by-step explanation:
16 times an ounce - - - a pound
help !!!!
my math teacher wants me to answer this, and I have to give the answer in 10 minutes
please help its due in 5 mind
What's y if x=2.5 and the slope is 5/.2 PLS HELP
Answer:
5×5=25/10 for mar hada dur kobic
Answer:
25/10
Step-by-step explanation:
PLEASE HELP!
log Subscript 3 (2x-7)= 4
Answer:
x = 44
Step-by-step explanation:
You can rewrite logarithm equations like so:
[tex]log_{b}(x) = y\\\\x = b^y[/tex]
A way to remember this is the base in the logarithm is also the base in the exponent - then remember this base b is to the power of what's on the other side - and all this is equal to whatever's in the parentheses.
In this case,
[tex]log_3(2x-7) = 4\\2x - 7 = 3^4\\x = (3^4 + 7)/2 = 44[/tex]
I need this ASAP
What is the height of the figure
Answer:
it is 6 I hope that
Step-by-step explanation:
because if division 11 on 759.88
A group of friends are going ice skating. The price of admission is $3.25. As a group, they spent $14 on refreshments. If they spent a total of $30.25 on admission and refreshments, how many friends went ice skating?
2 friends
5 friends
14 friends
53 friends
Answer:
5 friends
Step-by-step explanation:
The popular party game Twister is made up of 24 circles with 9 inch diameters.
What is the total area of all the circles?
Answer:
you have to do 9/2 and then times that by twenty four. that will give you 108
then you do 3.14*108*108=36624.96
Step-by-step explanation:
Answer:
the answer is 63.62 for 1 circle then multiply by 24 which gets 1526.88
Step-by-step explanation: