Lines a and b in the diagram are parallel. Parallel lines a and b are cut by 2 transversals. At the intersection of line a with the transversals, clockwise from top left, the angles are 45 degrees, 95 degrees, blank, blank, B, 40 degrees. At the intersection of b with a transversal, the angles are blank, A, blank, blank. At the intersection of b with the second transversal, the angles are C, blank, blank, blank. Step 1: measure of angle A = 40 degrees (alternate interior angles). Step 2: measure of angle B = 95 degrees (vertical angles). Step 3: measure of angle C = 40 degrees (corresponding angles). Shalini found the sum of the measures of the interior angles of the triangle to be 175°. She knows the sum is supposed to be 180°. What was Shalini’s error? m∠A = 45° m∠B = 85° m∠C = 45° Shalini did not add the sum of the 3 angles correctly.
Answer:
C the answer is C
Step-by-step explanation:
Answer: the other person is right its C: m∠C = 45°
Step-by-step explanation:
i’m so confused i need answers fast!!! pls help!!!!!
Answer:
Chu
Step-by-step explanation:
what you did to solve this problem?
0.5x = 4.3
plz help me with this no one understands how to
Answer:
x=8.6
Step-by-step explanation:
0.5x=4.3
/0.5 /0.5
x=8.6
Need help ASAP
Will make you brainlist
CHOOSE 2 triangle that’s are similar
Answer: The second and third one :)
Step-by-step explanation: the third one is a twice as large version of the second very similar :)
for the figure below, give the following
An elementary school is offering 3 language classes: one in Spanish, one in French, and one in German. These classes are open to any of the 103 students in the school. There are 37 in the Spanish class, 38 in the French class, and 21 in the German class. There are 17 students that in both Spanish and French, 7 are in both Spanish and German, and 10 are in both French and German. In addition, there are 4 students taking all 3 classes.
Required:
a. If a student is chosen randomly, what is the probability that he or she is not in any of the language classes?
b. If a student is chosen randomly, what is the probability that he or she is taking exactly one language class?
c. If 2 students are chosen randomly, what is the probability that at least 1 is taking a language class?
Answer:
0.3689 ; 0.3592 ; 0.6301
Step-by-step explanation:
Spanish = S
French = F
German = G
n(S) = 37 ; n(F) = 38 ; n(G) = 21
n(SnF) = 17 ; n(SnG) = 7 ; n(FnG) = 10
n(SnFnG) = 3
n(SnF) only = 17 - 3 = 14 ;
n(SnG) only = 7 - 3 = 4 ;
n(FnG) only = 10 - 3 = 7
n(S) only = 37 - (14 + 3 + 4) = 16 ;
n(F) only = 38 - (14 + 3 + 7) = 14;
n(G) only = 21 - (7 + 3 + 4) = 7
Probability of not being in any language class :
Number of students not in any class (x)
(16+7+14+14+4+7+3+x) = 103
65 + x = 103
x = 103 - 65
x = 38
Probability, P = required outcome / Total possible outcomes
P(not in any class) = 38 / 103
= 0.3689
2.) probability of taking exactly one class :
Either Spanish or German or French
16/103 + 7/103 + 14/103 = 37/103 = 0.3592
3.) probability that atleast one of two students is taking a language class :
Probability that a student chosen is taking a language class :
Number of students taking a language class / total number of students
= 65 / 103
= 0.631
[P(takes class) * p(does not take class)] + [p(takes class) * p(takes class)]
(0.631 * 0.3689) + (0.631 * 0.631) = 0.6301
Tickets to a show cost $5.50 for adults and $4.25 for students. A family is purchasing 2 adult tickets and 3 student tickets. What is the exact cost for the entire family?
Answer:
23.75
Step-by-step explanation:
You first multiply 2 by 5.50 you'll get 11.00. Then you multiply 4.25 by 3 you'll get 12.75. Then you add 11.00+12.75
At that velocity voyager 1 would have traveled 547,500,000 kilometers in a year. Whats that in scientific notation ?
Answer: 5.475 x 10^8
Step-by-step explanation: The number has to be in between 1 and 10 so you move your decimal as many times as you need to. In this situation it is 8, so that is your power
The diameter of the circle above is 12 cm. What is the circumference of the circle? (Use = 3.14.)
Answer:
37.68
Step-by-step explanation:
i had this one
simplify 8x + 4 - y + x + 17.
Answer:
9x-y+21
Step-by-step explanation:
hope this helps
Answer:
9x - y + 21
Step-by-step explanation:
Brandon and his friend adam both mow lawns.Brandon earns $375 per week mowing 15 lawns while Adam earns $500 per week mowing 25 lawns. Who has a greater average rate of change?
Which value for x makes the sentence true?
Answer:
x=2
Step-by-step explanation:
1/16 x 2=1/8
X=2
Hope this helps
also if u click the crown it marks brainliest but you can only do it when two people answer.
I just wanted to say that just incase u didnt know because I didnt know lol
The price of the tennis racket was 200 dollars. However, the actual price of the tennis racket was 400 dollars. What is the percent error?
Given,
The price of the tennis rocket = $200
The actual price of the tennis racket was $400
To find,
The percentage error in the price of the rocket.
Solution,
The percentage error is calculated as :
% = (final value-actual value)/actual value × 100
[tex]\%=\dfrac{400-200}{400}\times 100\\\\=50\%[/tex]
So, the percent error is 50%.
Which number is a perfect cube?
25
36
125
300
25 is a perfect cube I believe
Answer:
125
Step-by-step explanation:
Coz,
3√125 = √5×5×5
= 5
I will give brainlyest
Answer:
hii
how are you
feeling bored
1. G(x) =2x-4
2.g(x) =2x-10
3.g(x)=2x-14
4.g(x)= 8x-24
brainlyest plz
8d + 4 + 7f (d = 3 and f = 2)
Answer:
42
Step-by-step explanation:
8(3)+4+7(2)=24+4+14
= 42
Answer:
42? I multiplied 8 • 3 and then added 4. That gave me 28. I multiplied 7 • 2 and got 14. Finally, I added 28 + 14 and got 42
Step-by-step explanation: sorry if i’m wrong:((
Need help on this question it’s about angles !
Subtract. Write your answer as a fraction in simplest form. 5/12- 1/12 =
Answer:
4/12
Simplest form= 1/3
Step-by-step explanation:
Hope this helps!
5/12-1/12 = 4/12
4/12 divided by 4 = 1/3
The simplest form is 1/3.
What is fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.Given:
5/12- 1/12
Now, we have to subtract the fraction by focusing the numerator as
=5/12 - 1/12
=(5-1)/12
=4/12
=1/3
Hence, the simplest form is 1/3.
Learn more about fraction here:
https://brainly.com/question/10354322
#SPJ2
Put the lowest number on left, 5/6, 2/3, 1/2
Answer:
Step-by-step explanation:
1/2 , 2/3 , 5/6
4) Terry missed the sale on a $210 jacket. When he went to purchases it,
he jacket increased to a cost of $262.50 By what percent did the jacket
ncrease in price?
Answer:
The jacket increase by 25% in price.
Step-by-step explanation:
Given that:
Sale price of jacket = $210
New cost of jacket = $262.50
Change = New cost - Sale price
Change = 262.50 - 210 = $52.50
Percent increase = [tex]\frac{Change}{Sale\ price}*100[/tex]
Percent increase = [tex]\frac{52.50}{210}*100[/tex]
Percent increase = 0.25 * 100
Percent increase = 25%
Hence,
The jacket increase by 25% in price.
(2m+7)^3 written in standard form
Answer:
2
m
2
+
7
m
−
3
Step-by-step explanation:
2
m
2
+
7
m
−
3
simplify
( 5w + 13 ) + ( 2w + 1)
Answer:
10w^2 + 24w + 13
Step-by-step explanation:
use Foil method
Answer:
7w+14
Step-by-step explanation:
Let A,B, and C be square invertible matrices of the same size. If C has no eigenvalue equal to -1, then (AB + ACB)^-1 is equal to:
a. B^-1 (I + C)^-1*A^-1
b. (I + C)^-1*B^-1*A^-1
c. A^-1B*(I + C)^-1
d. (I + C)^-1*BA^-1
AB + ACB = A (B + CB) = A (I + C ) B
Taking the inverse gives
(A (I + C ) B)⁻¹ = B ⁻¹ (I + C )⁻¹ A ⁻¹
so the answer is (A)
A,B, and C are square invertible matrices of the same size.The correct option is a. [tex]\(A^{-1}(I + C)^{-1}B^{-1}\)[/tex].
Given A, B, and C as square invertible matrices of the same size, we want to find [tex]\((AB + ACB)^{-1}\)[/tex].
Step 1: Factor out B from the expression inside the parentheses:
[tex]\(AB + ACB = B(A + AC)\)[/tex]
Step 2: Use the property that [tex]\((X + Y)^{-1} = Y^{-1}X^{-1}\)[/tex] for invertible matrices X and Y:
[tex]\((AB + ACB)^{-1} = (B(A + AC))^{-1} = (A + AC)^{-1}B^{-1}\)[/tex]
Step 3: Now, use the distributive property of matrix inversion, which states that [tex]\((XY)^{-1} = Y^{-1}X^{-1}\)[/tex] for invertible matrices X and Y:
[tex]\((A + AC)^{-1} = A^{-1}(I + C)^{-1}\)[/tex]
Step 4: Substitute this back into the expression from Step 2:
[tex]\((AB + ACB)^{-1} = (A + AC)^{-1}B^{-1} = A^{-1}(I + C)^{-1}B^{-1}\)[/tex]
So, the correct option is: a. [tex]\(A^{-1}(I + C)^{-1}B^{-1}\)[/tex]
To know more about invertible matrices, refer here:
https://brainly.com/question/31116922
#SPJ2
What is the LCM of 2 and 3
The answer is 6
Answer:
6
Step-by-step explanation:
the lowest common factor is 6
Maria thinks the two expressions 2(3a-2) + 4a and 10a - 2 are equivalent. Is she correct? Explain your reasoning.
Answer:
yes they are both equal
Step-by-step explanation:
they are both equal because 2(3a-2)+4a simplified is 10a-2 because if you combine like terms you will have this result!
hope i was clear
have a good day! c:
you better do it right
Answer:
x = 28
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
7 divided by 1/4
then you get you answer
=28
hoped this helped, have a good day! c:
PLEASE HELP!!!! Jina has d decks of cards. Each deck has 52 cards in it. Using d, write an expression for the total number of cards Jina has.
Answer:52d
Step-by-step explanation:For example, Jina has three decks. 52 times 3 equal how much cards she has.
Larry can type 225 words in 3 minutes how many words can he type in 10 minutes?
Answer:
750 words in 10 minutes
Step-by-step explanation:
225÷3= 75
75×10 minutes= 750 words
Answer:
750
Step-by-step explanation:
Step 1: 225 words ÷ 3 minutes = 75 words per minute
Step 2: 75 words per minute • 10 minutes = 750 words in 10 minutes
if I had $13 and my mom gave $10 my dad gave $30 my grandma grandpa and aunt gave me $100 and I had another $7 what would that make me have
Answer: $160
Step-by-step explanation: 13 + 10 + 30 + 100 + 7
13 + 10 =23
23 + 30 = 53
53 + 100 = 153
153 + 7 = 160
