Determine whether each figure has rotational symmetry.
If so, determine the angle of rotation.
Answers
B. No
C. Yes 45degrees
D. Yes 180 degrees
E. Yes 90degrees
F. Yes 22.5degrees
Related Questions
It takes you 3 hours to drive to a concert 135 miles away. You drive 55 miles per hour on highways and 40 miles per hour on the rest of the roads. Write a system of linear equations that represents this equation. Use x to represent the number of hours driving on a highway and y to represent the number of hours driving on other roads.
Answers
Answer:
x + y = 3 (1)
55x + 40y = 135 (2)
Step-by-step explanation:
Since x to represent the number of hours driving on a highway and y to represent the number of hours driving on other roads and the total time for driving is 3 hours,
x + y = 3 (1)
Also, You drive 55 miles per hour on highways and 40 miles per hour on the rest of the roads, the distance moved on highways is 55x and the distance moved on the rest of the roads is 40y (since distance = speed × time).
Since the total distance moved is 135 miles, we have
55x + 40y = 135 (2)
So, the system of linear equations that represent the situation is
x + y = 3 (1)
55x + 40y = 135 (2)
The area of a circle is 2.5434 square meters. What is the circle's radius?
Answers
Answer:
r= 0.899m
Step-by-step explanation:
A= [tex]\pi[/tex]r²
r=√A/[tex]\pi[/tex]
Answer:
0.8468686471
Step-by-step explanation:
Area of a circle = π r²
2.2534= 3.142*r^2
0.7171865054=r^2
r=Square root of 0.7171865054
=0.8468686471
can anyone help me with this?
Answers
6. Find the area of the kite.
A. 16 units
B. 18 units
C. 9 units
D. 8 units
Answers
Answer:
Area of a kite = A=1/2× d1 d2
=1/2 × 2×3 = 1×3=3
a =3
Answer:
9 Units
Step-by-step explanation:
I’ll give brainiest whoever get it right!
Answers
Help me with this please
Answers
Tell whether this equation has no solution, one solution, or infinitely
many solutions.
2x+5=5x-1
O no solution
Oone solution
O infinitely many solutions
Answers
Answer:
infinitely many solutions
Step-by-step explanation:
Jackson bought a jar of 240 marbles. The percent bar graph shows the percentage of each color marble in the jar.
How many of the marbles are yellow?
Answers
Answer:
72 marbles are yellow
Step-by-step explanation:
What are the coordinates of the two points on the line? Select all that apply.
Answers
Answer:
choice 1 and choice 3) (1,8) and (7,1)
Step-by-step explanation:
If y varies directly with x and y = 84 when x = 12, find y when x = 11.
Answers
Answer:
y= 77
Step-by-step explanation:
Write down the equation for direct proportion.
y= kx, where k is a constant.
Find the value of k.
When x= 12, y= 84,
84= k(12)
12k= 84
k= 84 ÷12
k= 7
Substitute the value of k into the equation.
y= 7x
When x=11,
y= 7(11)
y= 77
1. Jemima wants to make chocolate chip walnut brownles. Chocolate chips come in a 12oz bag that costs $3. Walnuts
come in a 4oz bag that costs $2. If Jemima needs three pounds of chocolate chips and walnuts combined, and has $15
to spend, how many bags of each can she buy?
Answers
Answer:
4 bags of chocolate chips and 1 bag of walnuts.
Step-by-step explanation:
Find how many ounces are in 3 pounds:
16 oz = 1 lb
16 oz × 3 = 3 lbs
48 oz = 3 lbs
Variable x = number of chocolate chips
Variable y = number of walnuts
4x + 1y = 15
Keep in mind it must equal up to 48 oz and be $15 or under.
4 bags × 12 oz = 48 oz
1 bag × 4 oz = 4 oz
48 oz + 4 oz = 52 oz > 48 oz
4 bags × $3 = $12
1 bag × $2 = $2
$12 + $2 = $14 < $15
Both requirements have been met.
what is the answer for C = 12π
Answers
What’s the answer of this problem, you
Answers
Answer:
A = 216 [tex]m^{2}[/tex]
Step-by-step explanation:
Trapezoid area = [tex]\frac{a+b}{2}h[/tex] = [tex]\frac{11 m+25 m}{2}*12 m[/tex] = 216 [tex]m^{2}[/tex]
A square has its dimensions changed by a scale factor of 3. If the new area is 225 square inches, what was the area of the original square?
Answers
Savannah bought barn wood for $60 for 5 pieces. She spent $40 on materials to paint
and design the decorations. She sells each piece of wood for $25. What is her
profit/loss?
Answers
because
60 divided by 5 is 12, so each wood is 12 dollars
she spent 40 dollars on materials so 40 divided by 5 is 8, so she spent $20 on each piece of wood to paint it because 12(price of wood)+8(cost of materials per wood)= 20
and shes sells them for 25
so 25-20=5
5x5=25
so the answer is $25 profited
HELP PLS
Jeremy drew out the route he will hike over a 3-day period on the coordinate grid below. He will hike from Point A to Point B and from Point B to Point C on the first two days. On day 3, he will hike directly from Point C to Point A.
If each grid unit represents a distance of 1 mile, what is the distance Jeremy will need to travel between Point C and Point A?
Answers
The distance Jeremy will need to travel between Point C and Point A 19.69 miles.
We have given that,
Jeremy drew out the route he will hike over a 3-day period on the coordinate grid below.
He will hike from Point A to Point B and from Point B to Point C on the first two days.
On day 3, he will hike directly from Point C to Point A.
We have to determine the distance Jeremy will need to travel between Point C and Point A.
What is the distance formula?
[tex]d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}[/tex]
d = distance
(x_1, y_1) = coordinates of the first point
(x_2, y_2) = coordinates of the second point
(4,9)=(x_1,y_1)
(-4,-9)=(x_2,y_2)
[tex]d = \sqrt{(-4 - 4)^2 + (-9-9)^2}\\d=\sqrt{(8)^2+(18)^2} \\d=2\sqrt{97}\\ d=19.69[/tex]
Therefore, The distance Jeremy will need to travel between Point C and Point A 19.69 miles.
To learn more about the distance visit:
https://brainly.com/question/2854969
#SPJ1
An architect has designed a new hotel shaped like a giant rectangular pyramid. The base of the model for this hotel measures 20 inches by 30 inches, and is 25 in. tall. What is the volume of the pyramid?
Answers
Answer:
Volume of pyramid = 5000 cubic inches.
Step-by-step explanation:
Given the following data;
Length = 20 inches
Width = 30 inches
Height = 25 inches
To find the volume of pyramid;
Mathematically, the volume of a pyramid is given by the formula;
[tex] Volume = \frac {1}{3} * base \; area * height [/tex]
First of all, we would determine the base area;
Base area = length * width
Base area = 20 * 30
Base area = 600 in²
Substituting into the formula, we have;
[tex] Volume = \frac {1}{3} * 600 * 25 [/tex]
[tex] Volume = 200 * 25 [/tex]
Volume of pyramid = 5000 cubic inches.
Amelia bought a t-shirt for $15 and 3 pairs of pants. She spent a total of $117. Which equation matches this problem?
Answers
Answer:
The answer of the equation is 15x+3x=117.
Step-by-step explanation:
Moosa's sister is six years younger than 3 times his age. The sum of their ages is 30. How old is Moosa?
Answers
Suppose Moosa is ( x ) years old ,
Thus Moosa's sister is ( 3x - 6 ) years old .
The sum of their ages is 30 :
( x ) + ( 3x - 6 ) = 30 ==》 4x - 6 = 30
==》 4x = 36
==》 x = 9
So Moosa is 9 years old .
Four less than x = ??
Answers
Answer:
x-4
Step-by-step explanation:
Answer:
x-4
Step-by-step explanation:
Help thanks ☺️..... ........
Answers
Answer and Step-by-step explanation:
The area of the tile is 9.
To find the area, we multiply the side by another side.
3 times 3 is equal to 9.
#teamtrees #PAW (Plant And Water)
Help i will give u brainlest
Erin buys gas at a gas station for $4 a gallon. There is a sale going on at the gas station so that anyone who buys more than 5 gallons of gas only has to pay $3 a gallon for each gallon over 5 gallons. If a person buys more than 10 gallons of gas, each gallon over 10 gallons is only $2 a gallon for every gallon over 10 gallons but less than or equal to 15 gallons.. Erin's tank holds 12 gallons of gas.
Answers
Answer:
39$
Step-by-step explanation:
20+15+4=39$
Determine the volume of this prism
Answers
Answer:
200cm cubed
Step-by-step explanation:
Remember that volume of a rectangular prism is length x width x height
Answer: A) 200
Step-by-step explanation: The volume of a prism is length x width x height. Substitute the variables in this given prism into the equation.
Length = 10
Width = 5
Height = 4
V = 10 x 5 x 4 = 200
Toby has created a map of his neighborhood. When he drew the map he noticed his house, his friend's house, and the playground formed a right triangle
Answers
A 2-column table with 5 rows. Column 1 is labeled Number of Siblings with entries 0, 1, 2, 3, 4. Column 2 is labeled Students with entries (Jenn, Bill, Rosa, Juan), Cho, (Damon, Mike, Lisa, Lupe, Maggie), blank, Greg.
A small class took a survey of the number of siblings each student has. The data are shown in the table.
Which data representation would be most appropriate to represent each student who has a given number of siblings?
line graph
line plot
bar graph
stem and leaf plot
Answers
Answer:
line plot
Step-by-step explanation:
the radius of a circle is 20 inches,what is the diameter
Answers
Answer:
40 inches
Step-by-step explanation:
Diameter is radius X 2
314.16 hope it helps if not i am truly sorry
2. Mrs Davis bought furniture online. She had to pay 15% in shipping fees. The
items totaled $4,000. How much did the shipping cost?
Answers
Answer:
The shipping costed $600.
Step-by-step explanation:
4,000 * 15% = 600
or
4,000 * 0.15 = 600
ANYONE IM RUNNING OUT OF TIME!!!!!
Answers
Answer:
Y= -5/2x+3
Step-by-step explanation:
A perpendicular slope is always opposite (meaning if the original is negative, then it is positive and vice versa) and reciprocal (meaning the numerator and denominator of the original are flipped).
The y intercept I found by applying the slope to the point given.
y = mx + b
the m represents the slope
the opposite reciprocal of 2/5 is -5/2
y = -5/2x + b
to solve the rest of the problem, you will need to plug in your x and y coordinates.
-2 = -5/2(2) + b
-2 = -10/2 + b
-2 = -5 + b
Add 5 to both sides.
b = 3
This means your equation is...
y = -5/2x + 3
easy algebra question
Answers
Answer: 235 people got a real one
Step-by-step explanation:
Susana has four identical square gems. She wants to arrange them to form a larger quadrilateral with four right angles and two pairs of parallel sides. Susana’s assistant says that the quadrilateral must be a square, as shown. Do you agree? If so, explain your reasoning. If not, draw a quadrilateral to support your answer.
Answers
Answer: i agree u are right it makes sence
Step-by-step explanation:
Answer: I do not agree
Step-by-step explanation: The picture below meets all the requirements, four right angles, and two parallel lines