Answer: True
Step-by-step explanation: Dilations do not change the angle measure. All line segments are changed by the same factor, therefore the angle remains the same.
a set of two concentric circles is shown above. What is the area of the shaded portion above?
Answer:
The answer is "[tex]44 \ m^2[/tex]"
Step-by-step explanation:
[tex]R=4.5 \ m \\\\r=2.5\ m\\\\[/tex]
The area between two concentrated circles via an exterior circle radius R and an internal circle
[tex]r =\pi(R^2-r^2)[/tex]
The region, therefore, consists of two concentrated circles with radii of 4.5 m and 2.5 m.
[tex]r=\pi(4.5^2 -2.5^2)\\\\[/tex]
[tex]=\frac{22}{7} (20.25-6.25) \\\\ =\frac{22}{7} (14) \\\\=22 \times 2 \\\\ =44 \ m^2[/tex]
HELP PLEASE!!!!!!!!!!!!!
Answer:
2
Step-by-step explanation:
y = 2.95c + 6.85 shows the cost for Mrs. Franklin to go to a buffet with c of her grandchildren. 1. What is the y-intercept and what does it mean? 2. What is the slope and what does it mean? 3. If Mrs. Franklin paid $18.65 for the buffet, how many of her grandchildren did she take with her?
Answer:
Using the form y = m x + b where b is the y-intercept and m the slop
1. 6.85 is the y-intercept- when c = 0 the value of y will be 6.85
2. the slope here is m = 2.95 that means for every increase of 1 on the x-axis which is c the value of y increases by 2.95 (additional cost of each child)
3. If no children were to go the cost would be 6.85 (c = zero)
So she paid 18.65 - 6.85 = 11.8 for the children that went
11.8 / 2.95 = 4 so 4 of her grandchildren attended
This is a pyramid problem so please help out
Answer:
Step-by-step explanation:
LA, Laterial Surface Area, is the lateral surface area of a pyramid. In this case, it is the sum of five triangles with base of 12cm and height that can be calculated as follow:
height^2 = 8.26^2 + 20^2 = 468.23
height = 21.64cm
LA = 5*1/2*12*21.64
= 649.2cm^2
SA, Surface Area, is the sum of LA and base area.
Base area = 5*1/2*12*8.26 = 247.8cm^2
SA = 649.2 + 247.8 =897cm^2
Volume, V = 1/3 * base area * height
= 1/3 * 247.8 * 20
= 1652cm^3
Answer:
Step-by-step explanation:
LA = 5x(1/2)x(12)xsqrt(8.26^2+20^2)
= 649.16
SA = LA + 5x(1/2)x12x8.26
= 896.96
V = 5x1/2x12x8.26x20/3
= 1652
Irina is watching a 3 hour movie on TV. The shaded part of the fraction model below represents the part of each hour that the movie is playing, and the unshaded part represents the time spent on commercials.
Answer:
3 * 5/6 = 15/6 hours
Step-by-step explanation:
From the figure attached :
The bar is divided into 6 equal parts ; with 5 of the sections being shaded and 1 left unshaded
The shaded represent the actual playing time
Unshaded portion = time spent in commercials
Using the model, the actual playing time of the movie excluding commercials :
(Shaded portion / total portion) * movie length
5 / 6 * 3 = (5*3) / 6 = 15/6
The polygons in each pair are similar. Solve for x.*
Answer:
X = 6
Step-by-step explanation:
Heights is 5x
Lengths is 6x
The solution for the x is 7 as per the concepts of similar polygons.
Given that the polygons in each pair are similar.
To find the value of x, we can set up a proportion between the corresponding side lengths of the two similar polygons.
We have the following proportion:
(6x - 7) / 42 = 25 / 30
To solve this proportion, we can cross-multiply:
30(6x - 7) = 42(25)
Simplifying further, we get,
180x - 210 = 1050
Next, we isolate the variable by adding 210 to both sides of the equation:
180x = 1260
Finally, we divide both sides by 180 to solve for x:
x = 1260 / 180
Simplifying:
x = 7
Therefore, the value of x is 7.
To learn more about similar polygons;
https://brainly.com/question/14926756
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En un partido de baloncesto, los máximos anotadores han sido Juan, Jorge y Mario. Juan ha logrado 19 puntos. Jorge 5 puntos más que Juan y Mario 7 puntos menos que Jorge. ¿Cuántos puntos han obtenido entre los tres? *
Answer:
31
Step-by-step explanation:
Answer:
31
Step-by-step explanation:
Someone please correct me
i’m so confused
URGENT ( i have a maths test very soon !!!)
The table shows the population of three Texas counties. The population of Gray County is missing. The population of Gray County is 35,553 less than the population of Anderson County. What is the combined population of these four counties?
A. 2,694,709
B. 2,707,507
C. 2,695,209
D. 2,765,815
Answer:me dont know
Step-by-step explanation:
idek
Answer:
A. 2694709
Step-by-step explanation:
58308-35553=22755
22755 is the population of Gray County.
Add this number to the other numbers:
22755 + 58308 + 2416014 + 197632 = 2694709
Which two shapes have perimeters of 18 feet but have different areas?(1 point)
A rectangle with a length of 9 ft. and a width of 2 ft. and a rectangle with a length of 6 ft. and a width of 3 ft.
A rectangle with a length of 5 ft. and a width of 3 ft. and a square with a side length of 4 ft.
A rectangle with a length of 7 ft. and a width of 2 ft. and a rectangle with a length of 6 ft. and a width of 3 ft.
A rectangle with a length of 8 ft. and a width of 2 ft. and a square with a side length of 4 ft.
Answer:
they have different areas and different perimeters
Step-by-step explanation:
WILL GIVE BRAINLIEST! (Geometry)
The circle below has a radius of 10 inches. Find the area of Sector A and Sector C
Answer:
area of sector A = 47.97 in²
area of sector C = 109.03 in²
Step-by-step explanation:
area of full circle = πr² = (3.14)(10²) = 314 in²
area of sector A = (55/360)(314) = 47.97 in²
area of sector C = (314/2) - 47.97 = 109.03 in²
Tyler placed six number tiles labeled 3, 8, 12, 15, 19, and 22 in a box. He picks one of the numbers from the box with out looking. What is the probability tyler will pick a tile labeled with an even number.
Answer: 50%
Step-by-step explanation: there are 3 even numbers and 6 numbers total so 3/6 is 50%
What is the slope of a line that
crosses through the points (-1,-8)
and (2, 1)?
Answer:There's the answer
Just open it
Step-by-step explanation:
The points (-6,-4) and (2,-2) fall on a particular line. What is its equation in point-stope
form?
Use one of the specified points in your equation. Write your answer using integers, proper
fractions, and improper fractions. Simplify all fractions.
Answer:
y+4= 1/4 * (x+6)
* = Multiply symbol...
Step-by-step explanation:
Point Slope formula is y-y1=m(x-x1)
All you have to do is plug those y's and x's in and you get most of your answer. The part with the actual math is that to find the m which is the slope, you have to do y2-y1/x2-x1. So 2/8 which simplified to 1/4. And BAM point Slope formula.
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Miracle Aryan in YT
what's the surface area of this figure? (figure shown on picture)
Answer:
800 in²
Step-by-step explanation:
Let’s find the area of all the shapes in the net.
10 · 10 = 100
100 · 2 = 200
15 · 10 = 150
150 · 4 = 600
200 + 600 = 800
In the proof below, what is the missing reason?
Answer:
AAS
Step-by-step explanation:
What is the exact value of tan (19 pi /12 )?
A shirt costs $25. A sweater costs
3
as much as the shirt.
What is the cost, in dollars, of the sweater?
Answer:
28 dollars
Step-by-step explanation:
A shirt cost 25
a sweater Is 3 ”more”
so shirt= 25+ x Sweater: 28
I’m having trouble on this problem, anyone know the answer?
Answer:
the answer is 35 cm
Step-by-step explanation:
to make sure that you dont have a problem next time here is a formula
area of any polygon is the sum of all sides so 9 + 9 + 12 + 5 = 35
Jon started playing a computer game at 5:35 P.M. He finished the game at 5:52 P.M. How long did Jon play the game?
Answer: 17 minutes
Step-by-step explanation:
Answer:
17 minutes
Step-by-step explanation:
Just do 52-35, simple math
Write 2^3 ÷ √ 2 as a single power of 2.
Answer:
Step-by-step explanation:
Numerator: 2^3
Denominator: 2^(1/2)
Combining these, we subtract 1/2 from 3, obtaining 2^(5/2)
Tell whether 208 and 289 form a proportion
Answer:
You can tell if two fractions are proportional by using cross multiplication. Only equivalent fractions are proportional. To do this, multiply the denominator, the bottom number in the fraction, of the first fraction with the numerator, the top number in the fraction.
Step-by-step explanation:
how to find the circumference using 3.14
Answer:
c = 2 * 3.14 * r and c = 3.14 * d
Step-by-step explanation:
The formulas for the circumference of a circle are
c = 2πr and c = πd
where r is the radius and d is the diameter
using π = 3.14
the formulas become
c = 2 * 3.14 * r and c = 3.14 * d
2/3 dividido 1/3
A- 2/9
B- 3
C- 2
D- 1/2
Answer:
C
2/3 dividido 1/3 = 2
Step-by-step explanation:
How many 2/5 cup servings are in 9/5 cups of ice cream? (in simplest fraction form)
Answer:
4 1/2 cups of ice cream
Step-by-step explanation:
since the denominators are the same, we look at the numerator.
2 x 4 = 8 out of 9 cups
Simplifique:
a) 0,027^1/3
b)16^1/25
c)4^0,5
d)27^0,333...
Answer:
a) 0.3.
b) 1.117287138 to 9 dec. places.
d)3.
Step-by-step explanation:
a and d: the powers 1/3 and 0.333... is the cube root.
c: 0.5 = the square root.
b is found using a calculator
A cylinder made of lead has a height of 4 inches and a diameter of 2 inches. How heavy is the cylinder if lead weighs 0.4 pound per cubic inch? Round to the nearest tenth.
Answer:5.0
Step-by-step explanation:
The volume of a cylinder is [tex]\pi r^2h[/tex], since the radius is 1/2D, 2/2=1. Now, if [tex]\pi[/tex] is rounded to 3.14, the volume of the cylinder would be 1 x 1 x 3.14 x 4 = 12.56. Now, since there are 0.4 pound per cubic inch, 12.56 x 0.4 = 5.024. Rounded to tenth, the answer is 5.0 or 5.
Hope this helps!
HELPPPP PLSSSSSS AHHHH
Answer:
the Anwers D
Step-by-step explanation:
Answer:
I would say D
Step-by-step explanation:
If it isn't D try A
hey! i’ll give brainliest please help!
Answer:
third in line
Step-by-step explanation:
hope this helps
Answer:
I think is third in line
Step-by-step explanation:
I believe so
–3(c – 1) = 33
please help me
Answer:
c = -10
Step-by-step explanation:
Divide both sides by -3
simplify
c - 1 = -11
add 1 to both sides
c - 1 + 1 = -11 + 1
simplify
c = -10