Deshawn draws a regular pentagon and rotates it about its center. Which angle measures can Deshawn rotate the regular pentagon through to map it onto itself? Select each correct answer. 36° 72° 144° 180° 216° 288° A regular pentagon is divided into 5 equal parts. The lengths of all the sides are equal.
Answers
Answer:
Option (2).
Step-by-step explanation:
From the figure of a regular pentagon attached,
Central angle formed at the center of a regular pentagon is given by,
Central angle = [tex]\frac{360}{n}[/tex] degrees
Since, m∠COD ≅ m∠EOD ≅ m∠AOE ≅ m∠AOB ≅ m∠BOC
Therefore, by the rotation of a central angle about the center (∠EOD or ∠COD) pentagon will map on to itself.
Measure of the central angle of the given regular pentagon,
m∠COD = [tex]\frac{360}{5}[/tex]
= 72°
Therefore, Option (2) will be the answer.
Related Questions
The grades on a chemistry midterm at Springer are roughly symmetric with μ=67\mu = 67μ=67mu, equals, 67 and σ=2.0\sigma = 2.0σ=2.0sigma, equals, 2, point, 0. William scored 66 on the exam. Find the z-score for William's exam grade. Round to two decimal places.
Answers
Answer: - 0.50
Step-by-step explanation:
Given the following :
Mean score = 67
Standard deviation = 2
To obtain the Zscore, use the relation:
Zscore = (X - mean) / standard deviation
Williams score = 66 = X
Hence,
Zscore = (66 - 67) / 2
Zscore = - 1 / 2
Zscore = - 0.50
The three interior angle measures of this triangle are x= °, y= °, and Z= °
Answers
Answer:
z+100=180
z=180-100
z=80
x+150=180
x=180-150
x=30
x+z+y=180(ASP)
30+80+y=180
110+y=180
y=180-110
y=70
hope it helps you!
Bob's Bagels offers pre-paid cards and has the specials shown. Carol has a $50 card she uses to buy coffee and a bagel each week. Diego has a $60 card he uses to buy tea and a breakfast sandwich each week. Write and solve an inequality to find the number of weeks in which the balance on Carol's card will be greater than the balance on Diego's card.
Answers
Answer:
50-3W ≤ 60-5w
Number of week = 5 days
Step-by-step explanation:
Given:
Carlo card = $50
Diego card = $60
Note:
Coffee and Bagel = $3
Tea and breakfast sandwich = $5
Computation:
Number of week = W
50-3W ≤ 60-5W
Number of week = 5 days
NEED HELP ASAP!! WILL MARK BRAINLIEST!!
A football is kicked at 40 yards away from a goal post that is 10 feet high. Its path is modeled by y = -0.03x^2 + 1.6x, where x is the horizontal distance in yards traveled by the football and y is the corresponding height above the ground in feet.
Does the football go over the goal post? How far above or below the goal post is the football? Use two or more complete sentences to explain your answers. (Hint: The unit conversion is built into the given function.)
Answers
Answer:
at goal post x= 35
the height will be y= –0.03x2 + 1.6x= 19.25 > 15
is 4.25 feet above the goal post.
Step-by-step explanation:
Hope this helps
Point P is the interior of ∠OZQ. If m∠OZQ = 125 and m∠OZP = 62, what is m∠PZQ?
Answers
Answer:
[tex]PZQ = 63[/tex]
Step-by-step explanation:
Given
[tex]OZQ = 125[/tex]
[tex]OZP = 62[/tex]
Required
Determine PZQ
Since P is an interior of OZQ, we have that:
[tex]OZQ = OZP + PZQ[/tex]
Solve for PZQ
[tex]PZQ = OZQ - OZP[/tex]
Substitute values for OZQ and OZP
[tex]PZQ = 125 - 62[/tex]
[tex]PZQ = 63[/tex]
4x + 5 = 9 + 4x please answer
Answers
Answer:
no solutions
Step-by-step explanation:
4x + 5 = 9 + 4x
Subtract 4x from each side
4x-4x + 5 = 9 + 4x-4x
5 = 9
This is not a true statement so there are no solutions
Step-by-step explanation:
4x + 5 = 9 + 4x
4x - 4x = 9 - 5
0 = 4
CMIIW
You’re just solving for a variable
Answers
Step-by-step explanation:
(ab/4) +bc = 12 -xc
multiply both sides by 4
ab + 4bc = 48 - 4xc
Transfer -4xc to the other side
ab + 4xc + 4 bc = 48
Transfer ab to the other side
4xc + 4bc = 48 - ab
take c as a common factor
c( 4x - 4b) = 48 - ab
divide both sides by ( 4x - 4b)
c ( 4x - 4b)/( 4x - 4b) = (48- ab)/( 4x - 4b)
c = ( 48-ab)/( 4x - 4b)
State whether the lines are parallel, perpendicular, or neither. Show your work.
10x–5y=100 and 6y+3x=−7
PLZ SHOW WORK
Answers
Answer:
-5y=-10x+100
y=2x-20
6y=-3x-7
y=-1/2x-7/6
Perpendicular because the slopes are opposite
can anyone help me if i dont get my grade up i wont get to go to my vollyball games
Answers
Answer:
x = 63
Step-by-step explanation:
Answer:
63
Step-by-step explanation:
We need to find the LCD first in order to add the fractions:
7*3 = 21
3*7 = 21
21*1 = 21
So the LCD is 21.
Next, we need to make sure that the fractions have the same denominator in order to add:
-6/7x - 5/21x + 1/3x = -48
-18/21x - 5/21x + 7/21x = -48
-16/21x = -48
Multiply both sides by the reciprocal of -16/21 (21/-16) to get x by itself:
(21/-16)(-16/21)x = -48(21/-16)
x = 63
PLEASE HELP!? i need to ro this for my exit ticket asap
Answers
Answer:
It should be -3
Step-by-step explanation:
Answer:
42°
Step-by-step explanation:
[tex]m\angle ABD + m\angle DBC = m\angle ABC\\
2x + 2x - 3 = 81\degree \\
4x - 3 = 81\degree \\
4x = (81+3)\degree \\
4x = 84\degree \\
x = \frac{84}{4}\\
x = 21\\\\
m\angle ABD = 2x = 2*21\degree = 42\degree [/tex]
I need help on this
Answers
Answer:
I think that it is A or D
Step-by-step explanation:
90. The number of daily evening newspapers in the United States has decreased by 46.5% to
389 newspapers between 2000 and 2015. How many daily evening newspapers were there in
2000? I
Answers
Answer:
700
Step-by-step explanation:
Given:
Daily evening newspapers in 2015 = 389
Percentage decrease from 2000 to 2015 = 46.5%
To find:
Number of newspapers in 2000 = ?
Solution:
Let the number of newspapers in 2000 = [tex]x[/tex]
When 46.5% of the total newspapers in 2000 ([tex]x[/tex]) is subtracted from the total newspapers in 2000 ([tex]x[/tex]), it will be equal to the number of newspapers in 2015.
Making the equation as per the given statement:
[tex]x-x\times 46.5\%=389\\\Rightarrow \dfrac{100x-46.5x}{100}=389\\\Rightarrow 53.5x=38900\\\Rightarrow x\approx \bold{727}[/tex]
Therefore, the answer is:
There were 727 newspapers in 2000.
Solve: 2(x+1)/5=2(x+7)/13
Answers
Answer:
11/4
Step-by-step explanation:
Three fourths of a number decreased by 10 is greater than or equal to 5
Answers
Your equation will be the following.
3/4x-10≥5
Three fourths of a number would be [tex]3/4x[/tex]
Decreased by 10 would be subtracted by [tex]10[/tex].
Greater than or equal to 5 would be [tex]\leq 5[/tex]
If this helped please mark me as brainliest!
( Will give Brainliest to the first person who answers)
Answers
Answer:
h = 3 ft
Step-by-step explanation:
The lateral surface area of a cylinder is given by
LSA=2πrh where r is the radius and h is the height
The diameter is 312 inches
Changing to ft
312/12 =26 ft
Dividing by 2 to get the radius
26/2 = 13 ft
LSA=2πrh
Using 3.14 for pi
245 ft^2 = 2 * 3.14* 13 ft * h
245 = 81.64 h
Divide each side by 81.64
245/81.64 = 81.64 h/81.64
3.000979912 = h
To the nearest foot
3 = h
Answer:
h=3
Step-by-step explanation:
3-6 x (3 4th dived by 3 0) 2
Answers
Step-by-step explanation:
3 - 6 x ( 3/4 ÷ 3) 2
is this the correct equation? I'll solve it as long as i have the correct equation, but unsure as to if the 3 and 0 are supposed to be a fraction, decimal or multiplied etc
Which of the following statements cannot be assumed from the diagram?
Answers
Answer:
Option (2)
Step-by-step explanation:
Option (1).
Points A, B and D are collinear.
True. (On plane S)
Option (2).
Points A, B, C and E are coplanar.
False.
(Points A, B and D are on plane S and points C and E are on plane R)
Option (3).
BE intersects line 'n' at point B.
True.
Option (4).
CB ⊥ AD
(CB lies on plane R and AD lies on perpendicular plane S).
Option (5).
Line 'm' ⊥ plane R.
True.
(Line m is on plane S which is perpendicular to plane R).
Option (6).
Plane R intersects plane S at line n.
True.
Plane R and Plane S are perpendicular and the point of intersection is line 'n'.
Therefore, Option (2) is incorrect.
1.) Select the TRUE statement. *
Two squares with the same side lengths are always congruent.
Side lengths are not used to determine congruence.
OTwo rhombuses with the same side lengths are always congruent.
OTwo parallelograms with the same side lengths are always congruent.
Answers
Answer:
A. Two squares with the same side lengths are always congruent.
Step-by-step explanation:
Congruence is a relation that shows similarity between the shape or size of two or more given figures. It can be determined by comparing the size of the angles or sides of the figures involved.
A square has equal length of sides, therefore two squares with the same side lengths are always congruent in all respect (shape and area). The statement in option a is TRUE.
GUYS TIMED PLEASE HELP!!! A line passes through (-3,-4) and (6,2) what’s the x-in
A- -3
B- -2
C- 2
D- 3
Answers
Explanation: y-2=(2/3)(x-6)
set y=0 and solve for x
-2=(2/3)(x-6)
-3=x-6
x=3
Sarah earns $12.70 per hour at the car wash. How much will she make if she works 3.5 hours?
Answers
Answer: 12.70x3.5= 44.5 every hour.. 44.5x3.5=155.75 dollars a hour.
Step-by-step explanation:
Answer:
$44.45 is what she would earn.
Step-by-step explanation:
Multiply the two numbers together. Batta bing batta boom.
3 10 in . = 7 8 mi . what is the unit rate
Answers
Answer: (3/10) in = (7/8) mi
1 in = (7/8) mi ÷ (3/10)
= 7/8 * (10/3) = 70/24
1 in = (70/24) mi
It means every 1 inch on the map drawing represents (70/24) miles ≈ 2.917 miles in reality.
Hope this helps :)
Please mark me as Brainliest
There are seven rows of nine people how many people are there in
Answers
What is the rate of change (slope) of that line that passes through the points ( -8,62) (-6,34)
Answers
Answer:
The Slope is -14
Step-by-step explanation:
Each floor of a building is 12.1 feet tall. If the height of the building is 193.6 feet, how many floors does the building have? You must show your work to receive all possible points.
IS this enough, pls help.
Answers
Answer:
Yes, you showed your work.
Step-by-step explanation:
please i really need help
Answers
Answer:
-7, -6, -4, -2, 0, 2, 5, 7, 8, 9
Step-by-step explanation:
PLES ANSWER FAST! I THIS IS DUE IN 5 MINUTES
Answers
Answer:
The answer is 12ac^14/b^3
Answer
12ac^14/b^3
Step-by-step explanation:
Mrs. Martinez had $150.55 in her checking account. She wrote checks for the following amounts: $45.76, $35.00, and $79.82. What is the new balance in Mrs. Ming's checking account.
Answers
Answer:
160.58
Step-by-step explanation:
Answer:
= -10.03 if u subtract if u add its =160.58
Step-by-step explanation:
Jeleah is buying a dress for her
winter formal. Her total came
to $63, including tax. If the tax
was $4.60, then what was the
cost of the dress?
Answers
Answer: 58.4
Step-by-step explanation:
63 - 4.60 = 58.4
plz mark brainliest
Answer:
$67.60 is the total cost
Step-by-step explanation:
1. you have to add the taxes to the real price
63.00+4.60
Find the discriminant of 3^2-10x=-2
Answers
Answer:
3/11
Step-by-step explanation:
Answer:
Here, a=3, b=-10 and c=2. Substitute the values, Therefore, the discriminant of is 76. did you accept my friend invite? could you give me your office 365 so I cantext you bc I don't have a phone
Step-by-step explanation:
How many miles are equivalent to 800 meters? Round answer to the nearest hundredth.
0 0.50 miles
1.29 miles
2.62 miles
4.97 miles
Answers
Answer:
0.50 mi
Step-by-step explanation:
There are about 1600 meters in a mile*, so 800 meters would be ...
(800 m)/(1600 m/mi) = 0.50 mi
__
* The exact conversion is 1 mile = 1609.344 meters
