Answers
Answer:
A, 120 degrees
Step-by-step explanation:
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Explanation:
Triangle ABC is equilateral, so all three sides are the same length. This means the three angles are also the same measure. Call each interior angle x.
The three angles add to 180, so x+x+x = 180 solves to x = 60. Each interior angle is 60 degrees.
Angle DAC is an exterior angle of measure 180-x = 180-60 = 120 degrees
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Or another method you could use is the fact that all exterior angles of any polygon add to 360.
Since we have n = 3 sides, this means each exterior angle of an equilateral triangle is 360/n = 360/3 = 120 degrees
We consider this a regular polygon because all sides are the same length and all angles are the same measure. So the formula for the exterior angle measure 360/n would apply to any regular polygon and not just triangles.
Related Questions
Please help I will reward brainliest
Answers
Answer:
Straight Angle
Explanation:
Def: An obtuse angle is an angle whose measure is greater than 90 degrees but less than 180 degrees. Def: A straight angle is an angle whose measure is exactly 180 degrees. Def: Two angles are congruent if their measures are exactly the same. Def: Two angles are complementary if their measures add up to 90 degrees.
1.Make a number line and show all values of x such that… x<−1 and x>1... x=?
2.Make a number line and show all values of x such that x<−1 or x>1
3.Make a number line and show all values of x such that… d x≤−2 or x<−5
I hate RSM
Answers
Answer:
I only know the answer for the first one, the answer is there is no solution.
Step-by-step explanation:
It would only work if it said or, and it isn't possible to have a value that is smaller than -1 and greater than 1. That would make no sense at all. I'm sure I'm wrong but hope I helped!
Find the area of the isosceles trapezoid below by using the area formulas for rectangles and triangles.
a = 10 cm, b = 15 cm, and c = 5 cm
Answers
Answer:
750
Step-by-step explanation:
10 times 5
= 50
50 times 15
= 750
Lauren went shopping for a new pair of pants because of a sale. The price on the tag was $20, but Lauren paid $13 before tax. Find the percent discount.
Answers
Answer:
28%
Step-by-step explanation:
If 20 =100%
the difference between the discounted price of 13 is 7
7/20 is equal to 28%
Find the value of the x
Answers
Answer:
The answer should be 77, but the triangle in the question seems off. Read the explanation.
Step-by-step explanation:
To find the exterior angle in this problem, you can use the exterior angle theorem.
Interior angle + interior angle = exterior angle
25 + 52 = 77
You can double-check this answer by figuring out the third interior angle.
Since the sum of all the interior angles of a triangle should be 180, you can determine that
25 + 52 + y =180
Y= 103
or, since a straight line is always 180 degrees (Y+X=180)
25+52+(180-x)=180
X= 77
The reason why I think the question looks weird is since 77 is an acute angle, and even though it's the only answer that makes sense in this question, angle X is clearly an obtuse angle, as shown in the picture.
Which best describes the mean of a set of data?
A. The difference between the lowest and the highest values in a set of data.
B. The average of a set of data.
C. The value that occurs most frequently in a set of data
D. The middle value in a set of data.
Answers
Eliza intends to buy a new vehicle. She wishes to estimate the mean fuel efficiency (in miles per gallon) of all family sized SUV's currently available on the market. Eliza selects a random sample of 15 family sized SUV's and looks up their fuel efficiency on a trusted website. The results of the random sample are shown below:
27, 28, 30, 28, 28, 31, 29, 33, 28, 28, 31, 33, 41, 41, 25
What is the mean fuel efficiency rounded to the nearest whole number?
Question 1 options:
28
29
30
31
Answers
Answer:
28
Step-by-step explanation:
because if you add all the numbers together you get 433 then you have to divide 433 by the total numbers which is 15 then you get 28.
What are the 2 MEDIANS?
10 & 10 A
30 & 35 B
40 & 50 C
70 & 65 D
Answers
Answer:
C- 40 & 50
Step-by-step explanation:
If you look at the number line, the number in the middle of the interquartile range in the evening set has a dot in the middle which lands on 40, and the daytime box has a dot on 50.
PLEASE HELP!! DUE SOON!!
Polygon A is a square. Polygon B has 6 more sides than polygon A. What type of polygon is B?
A. decagon
B. hexagon
C. octagon
D. pentagon
Answers
Answer: Its A. decagon
The distance from a driveway to the closest house is 12,672 feet. How far is that in miles? (1 mile = 5280 feet)
A) 2.2 miles
B) 2.4 miles
C) 4.2 miles
D) 12 miles
Answers
12,672 ft/ 5,280 ft = 2.4miles
Select the statement that makes this comparison correct: 0.45 ________ 0.39.
Question 1 options:
0.39 > 0.45
0.45 > 0.39
0.45 < 0.39
0.39 = 0.45
Answers
Answer:
its c
Step-by-step explanation:
look at the tenths
.39 .45
Help please!!! screenshot below, ill post part 2 soon.
Answers
Explanation: If x equals the numbers of scarves you would multiply the price per scarf (4$) times x.
Which missing numbers make the following expressions equivalent?
8(3x – 5) and _____x –_____
A. 24; 40
B. 16; 5
C. 24; 5
D. 3; 40
Answers
Explanation: 8*3 = 24
8*5 = 40
Why do equivalent ratios form a straight line when graphed?
The vertical distance between points is constant, and the horizontal distance between points increases with each point.
The ratio of the change in y-values to the change in x-values is equivalent for any two points in a graph of equivalent ratios.
The horizontal distance between points is constant, and the vertical distance between points increases with each point.
The y-values of equivalent ratios increase at a constant rate, and the x-values decrease at a constant rate.
Answers
Answer:
D-The y-values of equivalent ratios increase at a constant rate, and the x-values decrease at a constant rate.
Step-by-step explanation:
i just did the quiz
D because the y values increase at a constant rate
What is the measure of angle x?
Enter your answer in the box.
x =
UwU PLZ help
Answers
hope this helps! :)
write an equation that gives the proportional relationship of the graph
Answers
Answer:
its c because 15 divided 3 is 5 so yes its c
Is ABC-DEC? Explain
Answers
Have a good day!!
Emily, Zeke, Harry, and Brook each conducted surveys on the number of books people have in their homes. Then, each student determined the accuracy of the following statement.
All measures of central tendency must appear as a number in the set of data collected.
Which student’s statement is CORRECT?
A.
Zeke says this is never true because all the measures of central tendency are never numbers in the set of data.
B.
Emily says this is always true because all the measures of central tendency also have to be numbers in the set of data.
C.
Harry says this is sometimes true because the mean and median may or may not be in the set of data, but the mode is always in the set of data.
D.
Brook says this is sometimes true because the mean and mode may or may not be in the set of data, but the median is always in the set of data.
Answers
Answer:
The answer is C.
Step-by-step explanation:
Pretty easy if you read the whole thing, please give Brainiest
A table of values of a linear function is shown below. Find the output when the input is n. Type your answer in the space provided.
Answers
Answer:
-13
Step-by-step explanation:
Do any of you have a made-up pokemon? Give Me Name, Hight, Type, Category, And All of That Stuff.
Answers
ANSWER FOR BRAINLIEST AND PLEASE EXPLAIN
PERIMETER OF TRIANGLE THAT IS 63 INCHES PLEASE SOLVE X
Answers
explanation: if you plug in 25 as the x value, the two missing sides would equal 50. plus 13 is 63, so that would be the correct x
Pythagorean Theorem: a^2 + b^2 = c^2
Question 6 options:
No. Since 7^2+9^2≠11^2, the triangle cannot be a right triangle.
Yes. Since 7^2+9^2=11^2, the triangle must be a right triangle.
Yes. Since7^2+9^2≠11^2, the triangle must be a right triangle.
No. Since 7^2+9^2=11^2, the triangle cannot be a right triangle.
Answers
9514 1404 393
Answer:
No. Since 7^2 + 9^2 ≠ 11^2, the triangle cannot be a right triangle.
Step-by-step explanation:
You may recall that side lengths of 3, 4, 5 make a right triangle. That particular triple has several interesting characteristics. One is that it is the only (reduced) triple that is an arithmetic sequence (has a constant difference between the side lengths). Any right triangle that has sides that differ by a constant amount must be a multiple of 3, 4, 5.
Here, we have sides of length 7, 9, 11—values that differ by 2. They form an arithmetic sequence that is not a multiple of 3, 4, 5, so we know right away they cannot be sides of a right triangle.
__
If we want to use the Pythagorean relation to check, we can see if the equation is true:
7² + 9² = 11²
49 + 81 = 121
130 = 121 . . . . . . Not True
please help me the best that you can. this is my last grade for this class and I really need to pass.
Answers
Answer:
v = 52 m/s
Step-by-step explanation:
One sanctuary had 180 green sea turtles come ashore to lay eggs last year. This year, the number of turtles increased by 10%. How many turtles came ashore to lay eggs in the sanctuary this year?
Answers
Answer:
198 turtles
Step-by-step explanation:
10% of 180 is 18
180+18=198
198 turtles
Mrs.Smith has 3 boys to every 5 girls in her class. What percent of her class is boys?
Please help me! Serious answers only please!
Answers
Answer:
1/4
25 percent
Step-by-step explanation:
Answer:
60% of the class is boys.
Step-by-step explanation:
Which set of data has a range with the greatest difference?
A. 40, 31, 28, 34, 23
B. 26, 36, 41, 30, 48
C. 12, 24, 35, 16, 30
D. 12, 21, 32, 8, 15
Answers
A. Range is 17
B. Range is 22
C. Range is 23
D. Range is 24
Therefore D’s set of data has a range with the greatest difference
Solve for varible
-7y=91
a/9=-4
-1/2m=-9
Answers
2. a= -36
3. m= -18
Answer:
y = -13
a = -36
m = 18
Step-by-step explanation:
-7y=91
divide both sides by -7
-7y/-7 = 91/-7
y = -13
a/9=-4
multiply both sides by 9
9(a/9) = 9(-4)
a = -36
-1/2m=-9
multiply both sides by 2
2(-1/2m) = 2(-9)
-1m = -18
divide both sides by -1
m = 18
Sophie bikes at a speed of s MPH and Rana bikes at a speed of r Mph. Rana took a bike ride that was m mile long. How long did she spend biking?
Answers
Answer:
r/m
Step-by-step explanation:
you need to have speed over distance to tell how long rana webt
Answer:
For this problem I got (20/r)-(20/s).
Step-by-step explanation:
A coin is flipped, and a standard number cube is rolled. Create a list to represent the sample space for the coin landing on tails and rolling an odd number
Answers
Need help with this math, learnt this today still very confused.