Complete the statements to find the measurements of ∠a and ∠b .
Find the measurement of ∠a.
m∠a +
°=180°
m∠a =
°
Find the measurement of ∠b.
m∠b +
° +
° =180°
m∠b =
°
Answers
Answer:
Step-by-step explanation:
We know that a straight angle is equal to 180°. Therefore, 120°+(a)=180°
We can solve for (a) by subtracting 120 from 180, which is 60.
180-120=60
m∠a+120°=180°
m∠a=60°
We know that the sum of all angles in a triangle is 180°.
Therefore, (a)+60°+(b)=180°
We know that (a) is equal to 60°, so our new equation is:
60°+60°+b=180°
60+60=120
180-120=60
m∠b+60°+60°=180°
m∠b=60°
Related Questions
god help what is a i am so smooth brained
Answers
Answer:
a = 54
Step-by-step explanation:
2a = (a + 10) + 44
2a = a + 54
a = 54
Answer:
8
Step-by-step explanation:
x + 7y = 21
Identify the x- and y-intercept and graph the equation on the coordinate plane to the left. What is they-value when x is 7? Answer these questions in the text box below.
Answers
Answer:
x=21−7y?
Step-by-step explanation:
I don't really know what else to do
Answer:
i am sorry but i don't know this answer
Step-by-step explanation:
Which of these statements best describes a biased sample?
A. it is very small.
B. It is not randomly chosen.
C. It results in incorrect predictions.
D. It does not accurately represent the population.
Answers
Answer:
i think it is B
Step-by-step explanation:
bias means you have an opinion on something and you make choices on it so a biased sample would not randomly chosen
The correct option is:
D.) It does not accurately represent the population.
What is sampling?In statistical analysis, sampling is the procedure by which researchers select a specific number of observations from a larger population. The sample strategy will depend on the sort of study being done, although it may involve systematic sampling or just plain random sampling.
It is a common statistics practice, when we want to study something from a population, we find a sample, which is a group of members of this population. The sample has to be representative of the population, that is, it has to involve all of its groups. If it does not involve all the groups, it is not an accurate representation of the population, and is called biased.
Hence, option C is correct.
To learn more about sampling:
https://brainly.com/question/25122507
#SPJ3
What is the range of possible sides for side x? The other two sides are 3.2 and 5.5
I’ve included an image of the triangle:
Answers
Answer:
2.3 < x < 8.7
Step-by-step explanation:
Given 2 sides of a triangle then the 3rd side x is in the range
difference of 2 sides < x < sum of 2 sides , that is
5.5 - 3.2 < x < 5.5 + 3.2
2.3 < x < 8.7
2 plus 3 plus 8 plus 2
Answers
Answer:
15
Step-by-step explanation:
2+3+8+2
2+3= 8+2=
5 + 10=
15
Answer: 15
Step-by-step explanation:
Added all 4 #s.
Find the value of 6 1/5% of 425ml
Answers
Answer:
26.35 mlStep-by-step explanation:
[tex]6 \frac{1}{5 } \: = \: \frac{31}{5} [/tex]
Hence,
31/5 % of 425ml
[tex] = 425ml \times \frac{ \frac{31}{5} }{100} [/tex]
[tex] = 425ml \: \times \frac{31}{5} \times \frac{1}{100} [/tex]
[tex] = 85ml \: \times 31 \times \frac{1}{100} [/tex]
[tex] = \frac{2635}{100} ml[/tex]
= 26.35 ml (Ans)
If C = 18π inches, what is the area?
I need the answer asap
Answers
Answer:
A = 254.34
3.14 = pi
Step-by-step explanation:
C = 18(3.14)
C = 56.52
A = C^2/4(3.14)
A = (56.52)^2 = 3194.5104
A = 3194.5104/4(3.14) = 254.34
Hope this makes sense
Why do you think city streets often are designed to be parallel or perpendicular?
Just give 2-3 line explanation (no links/unhelpful answers)
Answers
Answer:
Step-by-step explanation: Most urban designers incorporate a diagonal street cutting through the regular grid to create interesting spaces, squares, plazas, to provide relief and add character as can be seen at Manhattan Times Square created by Broadway cutting the grid at an angle.
Solve this system of equations by graphing. First graph the equations, and then type the solution. The solution has to be two points that intersect
Answers
Answer:
they intersect at (4,-2)
Step-by-step explanation:
Jackson's mom limits the amount of time he is allowed to play video games. After Jackson plays for 14 minutes, his mom tell him he has used up 35% of his time. What is the total number of minutes Jackson is allowed to play video games per day? How many more minutes can he spend playing his games?
Answers
XD Plzzzzzz do 2 slides (4 problems)
Answers
Answer:
Slide 1:
1. Solution = (-3,2)
y = 2x - 1
y = 3/2x + 6
2. No solution
y = -4/2x + 4
y = -4/2x - 5
Slide 2:
3. Solution = (1, -6) ONE SOLUTION
4. Solution = (-4, -1) ONE SOLUTION
p.s i attached the graphs for problems 3 and 4. The first picture is for problem 3 and the second picture is for problem 4
I really hope this helped :)
Jones Elementary School has 540 students. If 70% of the students walk to school, then how many students walk to school?
Answers
Hope this helps
The number of students walk to school is 378.
What is a percentage?A percentage is a number or ratio that can be expressed as a fraction of 100. Percentage can be calculated by dividing the value by the total value, and then multiplying the result by 100.
For the given situation,
The total number of students = 540
Percentage of students walk to school = 70% = 0.70
Number of students walk to school = [tex]540(0.70)[/tex]
⇒ [tex]378[/tex]
Hence we can conclude that the number of students walk to school is 378.
Learn more about percentages here
brainly.com/question/1214133
#SPJ2
help me plzzzzzzzzz :))))
Answers
Marty read 4 times as many pages as Nelson and Jennifer COMBINED. Marty read 1,860 pages.
In total, after dividing Marty's total by 4, Jennifer and Nelson both read a total of 465 pages.
After subtracting Nelson's 240, Jennifer is then found to have read 225 pages.
B would be the best viable option, as it clearly shows that 240+?x4=1,860, which it does.
Hope this helped. Khan Academy is a great resource for any learner. :)
Answer:
4(240 + p) = 1860
225 pages.
Step-by-step explanation
4(240 + p) = 1860
960 + 4p = 1860
4p = 1860 - 960
4p = 900
p = 225.
Is this correct? Yes or no, and explain your answer.
Answers
Answer:
I think the answer you have is correct
Step-by-step explanation:
Graph the solution: x - 19 < 81
im assuming it's on a number line help
Answers
Answer:x<100
Step-by-step explanation:The given equation is :
x-19<81
Adding 19 to both sides of the equation.
x-19+19<81+19
x<100
Can someone please help me I need to know
Simplify, write each expression using only positive exponents.
1. 8x^-3
2. 5^-3 ∙ m ^6
3. 7p^5 / p^-1
*The slash on the third question means its a fraction, and this ^ means to the power of.
Answers
Answer:
Here are the basic steps to follow to simplify an algebraic expression:
remove parentheses by multiplying factors.
use exponent rules to remove parentheses in terms with exponents.
combine like terms by adding coefficients.
combine the constants.
Step-by-step explanation:
Two customers walk into Petsmart with the same amount of money. One customer adopts a lizard and leaves the store with $56 left over. The Second customer adopts 2 lizards and only has $31 left over.
Answers
Answer:
The lizards are $25 each and each walked in with $81
Step-by-step explanation: find the difference between the amount they each had left which is 25 and that is how much 1 lizard cost and then add that to the $56 so you get $56+25=81 and 81 is the initial amount they walked in with
Answer:
the lizards are $25 each and each person walked in with $81
Step-by-step explanation:
Please help look at pic
Answers
Answer:
x/9 - 1 = -2
9(x/9) 9(- 1) = 9(-2)
x - 9 = -18
x - 9 + 9 = -18 + 9
x = -9
pls help me!!!!!!!!!!!!!!!!!
Answers
Answer:
26.75
Step-by-step explanation:
The area of the bottom half of the shape is 11, but the top half is 15.75. Add them together and you get 26.75.
I can explain more if you need
Answer:
31.5 units²
Step-by-step explanation:
find the area of all four shapes then you add it all together
Can someone tell me how to answer it
Answers
Answer: ryan
Step-by-step explanation:
divide to find out how long it takes for each person to jog a mile
hunter: 30÷4=7.5
ryan: 48÷7=6.85714
6.85714 minutes is faster than 7.5 minutes, therefore ryan jogs faster
What is the distance between 2 points is called:
A. Density
B. Mass
C. Length
Answers
Answer:
C. Length
Step-by-step explanation:
The shortest distance between two points is the length.
Hope this helped!!!
The two plots below show the heights of some sixth graders and some seventh graders:
Two dot plots are shown one below the other. The title for the top dot plot is Sixth Graders and the title for the bottom plot is Seventh Graders. Below the line for each dot plot is written Height followed by inches in parentheses. There are markings from 52 to 57 on the top line and the bottom line at intervals of one. For the top line there are 2 dots above the first mark, 1 dot above the second mark, 1 dot above the third mark and 2 dots above the fourth mark. For the bottom line, there is 1 dot above the third mark, 1 dot above the fourth mark, 3 dots above the fifth mark and 1 dot above the sixth mark.
The mean absolute deviation (MAD) for the first set of data is 1.2 and the MAD for the second set of data is 0.8. Approximately how many times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders? (Round all values to the tenths place.)
1.5
2.2
3.0
4.6
Answers
Answer:
The number of times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders is:
3.0
In order to find the variability between the two sets we divide the mean absolute deviation of the first set of data by the mean absolute deviation of the second set of the data.
The MAD of first set of data is: 1.2
and MAD of second set of data is: 0.4
Hence, let n be the number of times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders.
Step-by-step explanation: i Just said it 3.0 Hope this help ..lolz <3
Can someone help me
PQR is similar to XYZ
Answers
Answer:
D. 126
Step-by-step explanation:
30 ÷ 5 = 6
5 * 6 = 30
6 * 6 = 36
10 * 6 = 60
60 + 30 + 36 = 126
GUYS HELP!!!
I dont have a protractor so I can't do it! PLZ HELP!
5. Using a protractor, find the measure of the following angles to the nearest degree.
m∠ACE = __________ m∠FCD = ________
Answers
Answer:
hey we need a picture of the angles otherwise we cant help u sorry
Help i prob didn't need to use so many points
Answers
Answer:
Step-by-step explanation:
I think it is y=1/x+5+2. Because you are moving to the right 5more times, and you are going up 2 which means that is adding 2 more.
The table shows a proportional relationship between the number of pounds of grapes
purchased and the total cost of the grapes.
A row of values is missing in the table.
Which number of pounds of grapes and total cost of the grapes could be used as the
missing values in the table?
Select each correct response.
Question 1 options:
Pounds of grapes: 2
Total cost: $1.38
Pounds of grapes: 3
Total cost: $2.53
Pounds of grapes: 6
Total cost: $3.68
Pounds of grapes: 8
Total cost: $5.52
Pounds of grapes: 11
Total cost: $8.97
Answers
Answer:
Pounds of grapes: 8; total cost: $5.52
Step-by-step explanation:
Find the proportional relationship for 1. 1:0.69You can eliminate 3 off the topTry 11 first since it is the largest and the table is increasing in pounds. 11:7.59 (incorrect)Try 8. 8:5.52 (correct)Pounds of grapes: 8
Total cost: 5.52.
PLS HELP, I’LL GIVE BRAINLIEST! :))
Answers
Answer:
D
Step-by-step explanation:
Write the solution to the equation as a decimal. 2x = 3
Answers
Answer:
x = 1.5
Step-by-step explanation:
2x = 3
divide both sides by 2
x = 3/2
3 divided by 2 is 1.5 so
x = 1.5
Answer:
1.5
Step-by-step explanation:
[tex]2x = 3 \\ \frac{2x}{2} = \frac{3}{2 } \\ two \: cancle \: by \: two \: then \\ x = \frac{3}{2 } \\ x = 1.5[/tex]
Find the AREA of a circle with RADIUS of 13 yards.
Answers
Answer:
530.66
Step-by-step explanation:
A = πr²
13 x 13 = 169
169 x 3.14 = 530.66
Let me know if that helps!
That’s the answer I did
Second Roll First Roll 1 2 3 4 5 6 1 1-1 1-2 1-3 1-4 1-5 1-6 2 2-1 2-2 2-3 2-4 2-5 2-6 3 3-1 3-2 3-3 3-4 3-5 3-6 4 4-1 4-2 4-3 4-4 4-5 4-6 5 5-1 5-2 5-3 5-4 5-5 5-6 6 6-1 6-2 6-3 6-4 6-5 6-6 Select the favorable outcomes for rolling a sum less than five. (5-1) (5-2) (5-3) (5-4) (5-5) (5-6) (1-6) (2-5) (3-4) (4-3) (5-2) (6-1) (1-1) (2-2) (3-3) (4-4) (5-5) (6-6) (1-1) (1-2) (1-3) (2-1) (2-2) (3-1)
Answers
Answer:
"2" (and any subsequent words) was ignored because we limit queries to 32 words.
Answer:
what?
Step-by-step explanation:
confused