In ∆ABC , if AB = AC and ∠B=80° then ∠C is equal to

a) 20° b) 40° c) 60°

Answers

Answer 1

Answer:

Here,

given, angle B = 80 degree

in ABC triangle, AB = AC

that means angle B = angle C

so angle C must be 80 degree

Step-by-step explanation:

I guess, the options are wrong

or,

may the question asked for angle angle A

which will be = 180- (80+80) = 180 - 160 = 20 degree (option a)


Related Questions

A sheet of paper is 0.00005 meter thick. One nanometer is 1 x 10-meter. How thick is a sheet of paper in nanometers?
O 50,000
O 500,000
O 50,000,000,000,000
O 500,000,000,000,000

Answers

The thickness of the sheet of paper in nanometre is 50,000

The sheet of paper is 0.00005 meter thick .

1 nanometre = 1 × 10⁻⁹ meters

1 × 10⁻⁹ meters = 1 nanometre

0.00005 meters = ?

cross multiply

Therefore,

Thickness of the paper (nanometre) = 0.00005/1 × 10⁻⁹

Thickness of the paper(nanometre) = 50,000

Check here for more information: https://brainly.com/question/1107535?referrer=searchResults

please explain your answer

Answers

Answer:

51

Step-by-step explanation:

11+(-7)^2-9 - original

11+49-9 - square the -7, since its in brackets the negative applies too and a negative x a negative = positive, so it ends up as 7x7+49

60-9 - add both positives 11+49=60

51 - subtract 9 from 60, 60-9=51

Which is an obtuse angle?
1. 2. 3. 4.

Answers

Answer: 4. is an obtuse angle.

Step-by-step explanation: An obtuse angle is 180 degrees or more.

Help please and show me the steps on how u got the answers

Answers

6a If 17.5% of the students were 7, then 100% would be 100/17.5 times 7 which equals 40.
Therefore, there are 40 students in total.


6b. The amount of students present would be the amount absent taken away from the amount of the students in the class, which is. 40 - 7 = 33. So 33 students were present.

7. If the hat cost $18 dollars in the 10% sale, the percentage is now 90% of the original price (100-10=90). Therefore, if $18 equals 90%, then 100% (the original price) would be 100/90 times 18 which equals 20. So the original price is $20.

8. Apply the same principle as question 7. 76kg is 95% so his original weight is 100/95 times 76 which equals 80kg. Therefore his weight before the decrease is 80kg.

9. Apply the same principle as question 7 and 8. 185l is 88% so the amount of water before evaporating would be 100/88 times 185 which equals 210.22l. Therefore 210.22l would be left.

Hope this helps and let me know if I made a mistake! :)

Solve for xx. Express your answer as a proper or improper fraction in simplest terms.
-1/3= 5/12x-2/3

Answers

Answer:

4/5

Step-by-step explanation:

hope this helps :)

-1/3 = 5/12x - 2/3          Add 2/3 to both sides

1/3 = 5/12x              Divide by 5/12

1/3  /  5/12  = x

x = 0.8 or 4/5

Of the following, which is the first time after 11:30 that the minute and hour hands of my circular alarm clock no longer form an obtuse angle?
a. 11:40
b. 11:41
c. 11:42
d. 11:43
e. 11:44
f. 11:45
g. 11:46 ​

Answers

the answer is g 11:46 because you adding so and it’s also C

At the fast food restaurant, an order of fries costs $0.96 and a drink costs $0.90. How
much would it cost to get 2 orders of fries and 5 drinks? How much would it cost to
get f orders of fries and d drinks?

Answers

$6.42 cents would be the answer because $0.96 times 2 would be $1.92 making the cost of the fries and $0.90 times 5 would be $4.50 so add $1.92 + $4.50 it would equal $6.42

Find the measure of XYZ

Answers

Step-by-step explanation:

the measure of XYZ =

135° - 60° = 75°

find the volume of the solid

Answers

Answer:

The volume of the solid is 24 in^3

Step-by-step explanation:

The most general form of the equation of the volume of a pyramid is

V = (1/3)(base area)(height)

In this case,

V = (1/3)(18 in^2)(4 in) = 24 in^3

98% of 60??
Estimating with percents!

Answers

Answer:

58.8

Step-by-step explanation:98/100 *60

Answer:

58.8

Step-by-step explanation:

y=-3(x-7)(x+3) in standard form

Answers

Answer: I explained it down below in the picture.

i need it asap answer

Answers

Answer:

D. As the number of students in a class increases, the average rating score of the class decreases.

Hope this helps!

Help my little brother ​

Answers

Answer:

1) 6

2) 9

3) 80

4) 10

5) 4

6) 4

Step-by-step explanation:

1) 36 / 6 = 6

2) 45 / 5 = 9

3) 10 * 8 = 80

4) 5 * 2 = 10

5) 16 / 4 = 4

6) 12 / 3 = 4

Hope this helped!

!30 points! Which angle corresponds to angle N? (Photo attached)

A. N
B. O
C. O'
D. P'

Answers

Answer:

∠ N'

Step-by-step explanation:

Corresponding angles in the same position after the transformation.

∠ N' corresponds to ∠ N

Answer:

its A

Step-by-step explanation:

The product of three consecutive integers is 3360. What is the sum of the three integers?

Answers

Step-by-step explanation:

let the integer be x .

three consecutive integers : x, x+1, x+2.

according to the problem,.

Let the first of the 3 consecutive numbers be X.

Therefore the second number is (X + 1)

The third number is therefore (X + 2)

The product of the 3 consecutive numbers is:

( X )( X + 1 )( X + 2 ) = 3360 Equation( 1 )

Expanding Equation ( 1 ) gives

X³ + 3X² + 2X - 3360 = 0 Equation (2)

Solve Equation (2 ) which gives the following values for X

X1 = 14

X2 = - 8.5 + i (12.951834)

X3 = - 8.5 - i (12.951834).

the numbers are 14,15,16.

sum is 14+15+16 = 45.

hope this helps you.

Which list shows the fractions and decimals in order from least to greatest?

Answers

where's the list at ?

Answer:

Step-by-step explanation:

where is the list to give you the answer

5 The area of a trapezium is 54 cm^2. The length of one of the parallel sides is 8 cm and the height is 6 cm. Find the length of the other parallel side.​

Answers

Answer:

come here if you want to see

The length of the other parallel side is 10 cm.

Trapezium is a quadrilateral (has four sides and four angles) with a pair of parallel sides. The area (A) of a trapezium is given by:

A = (1/2)(a + b)h

where a and b are the length of the parallel sides, h is the height of the trapezium

Given A = 54, a = 8 cm, h = 6 cm, hence:

54 = (1/2)(8 + b)6

8 + b = 18

b = 10 cm

The length of the other parallel side is 10 cm.

Find out more on trapezium at: https://brainly.com/question/137259

Line B passes through the points (5, 10) and (0,0). What is the slope of the line
perpendicular to line B?
O 1
2
مسیر
1
2
o –
O2
None of the other answers are correct

Answers

1/2 DID THE TEST                

Step-by-step explanation:

A meeting takes place between a diplomat
and fourteen government officials.
However, four of the officials are actually
spies. If the diplomat gives secret
information to ten of the attendees at
random, what is the probability that no
secret information was given to the spies?

Answers

Answer:

The number of ways to choose 10 people out of 14 people is given by 14C10 which is read "14 choose 10"  

Only 1 of these combinations will result in no information being given to any of the 4 spies.  

Can you figure out the probability from these 2 facts?  

Step-by-step explanation:

2  4/6  divided by 1  3/7 i will give brainlist and give a step by step

Answers

Convert both fractions into top heavy fractions:

2 4/6 becomes 16/6
2 x 6 + 4 over 6

1 3/7 becomes 10/7
1 x 7 + 3 over 7

Next use KCF - Keep the first fraction the same, Change the sign to ´x’ and Flip the second fraction:

16/6 x 7/10

Finally multiply the numerators and denominators

16 x 7 = 112
6 x 10 = 60

112/60

Simplify:

112/60 = 56/30 = 28/15

What is
The midpoint between (8,3) and (12, -7) is,

Answers

Answer:

(10, -2)

Step-by-step explanation:

(8+12)/2 and (3+-7)/2

= (10, -2)

really need help with it to solve 34 and 35

Answers

answer:
34- the triangles are not congruent. if you look at the triangle, it only has 2 angles that are congruent. in order for it to be considered congruent, there would need to be another angle or side that is set congruent.
35- the triangles are congruent. they are congruent because of the property AAS (angle,angle,side)

hope this helps :)

Answer:

69

Step-by-step explanation:

funny number funny number

Clarise has $290 in her checking account. She writes checks for $102 and $75 and then makes a deposit of $170. Find the amount left in her account. ​

Answers

Answer:

$283

Step-by-step explanation:

Amount of money left in Clarise's account

= $290 - $102 - $75 + $170

= $283

Answer:

283

Step-by-step explanation:

If the two rays are perpendicular what is the value of m ?

Answers

Answer:no idea cause we can’t see what or where m is

Step-by-step explanation:but if two rays are perpendicular then they intersect at 90 degrees and the slope of ray1 =m1 and the slope or ray2 = m2 and m1 x m2 =-1

will mark brainlist!!!!!!!!!!
what is 4+m/5=2

Answers

Answer:

-10

Step-by-step explanation:

Subtract 4 from both sides

m/5 = -2

Multiply by 5

m = -10

Step-by-step explanation:

4+m/5 = 2

4+m =2*5

4+m = 10

m= 10 -4

='6

Fine the value of n
a.3 over 15 =n over 15
b. 20 over 45 = n over 9​

Answers

Answer:

a) n = 3

b) n = 4

Step-by-step explanation:

a) Start off by multiplying each side by 15

[tex]\frac{15n}{15}=\frac{3(15)}{15}[/tex]

Then simplify the equation

[tex]n=3[/tex]

b) Start off by canceling the common factor of 5

[tex]\frac{n}{9} =\frac{4}{9}[/tex]

Then simplify the equation

[tex]n=4[/tex]

ILL GIVE BRAINALIST IF YOU ANSWER CORRECTLY

Answers

the answer for this question is 5(30+2)

Write and solve an inequality that represents the values of x for which the area of the rectangle will be at most 45 square meters. PLEASE SHOW WORK

Answers

Correct Answer: x = 7

Step by Step Explanation:

Area of a Rectangle: L*W

Rectangle’s Area = 45

(x+3) * 4.5 = 45


(x+3) * 4.5/4.5 = 45/4.5

x+3 = 10
-3 -3

x = 7

Which expression is negative?
a
b
+
+
-1
0
1
Choose 1 answer:
А
a +1
B
a -(-6)
None of the above

Answers

Answer:

I don’t understand

Step-by-step explanation:

i don’t understand

The answer is None of the Above

What’s the answer to this maths question

Answers

108


find the area of the triangles first:
formula for the area of a triangle is A=bh/2
the base is 12
the height can be found by taking the 13(given) subtracting 5(given) and dividing by 2 which gives you 4 and then just fill in the formula
A= 12•4/2
A=24 then multiply by 2(bc there are two triangles and you get
A=48

now to the area of the rectangle which is just
A=BH you fill it in
A=12•5 solve
A=60
then you add the area of the triangles to the area of the rectangle to get the area of the hexagon
A=48+60
A=108

brainliest pls<3

Other Questions
which of freuds ideas is still part of modern psychoanalytic thought? f(x)=x+2, find f(0) The first step in the scientific method is to Question 1 of 10What happens inside a closed car on a hot day?A. The pressure inside the car increases.B. The molecules of gas slow down.C. The number of molecules increases.D. The volume inside the car increases. I WILL GIVE BRAINLIEST!!!Which of these civilizations would you like to live in and why?Aryans - Mohenjo-Daro/Harappa - Dravidian 3. Linnaeus and other early scientists classified organisms based on visible traits. Today, scientists generally usecladograms based on DNA and other evolutionary evidence to classify organisms. Why have most scientistschanged their method of classification?a. Cladograms are relatively small and the information in them is easy to manage.b. Cladograms can compare more animals at one time than traditional classification methods.C. DNA evidence supports the idea that species that look similar are always more closely related than speciesthat do notd. DNA evidence often shows that species that s hare characteristics but look different can be more closelyrelated than species that look alike. Which of the following is an example of how a geographic location can be an advantage in trade? A A region very close to the ocean can easily ship goods overseas A region far away from trade routes has to pay more to transport goods. A region with dry soil has to import fruits and vegetables, A region without forests has to import tumber to build homes HELP please help quick i need an answer SOLViNg EquationsYou are an electrician for the city where you live. You get acall about a parking lot at baseball field where the lamp postskeep shutting off, due to the circuit breaker. A circuitbreaker is a switch that automatically stops the flow ofelectricity due to a current being too strong or some otherdangerous situation. You've been called in to figure out whythe circuit is breaking8One of the most common formulas dealing with electricity iscalled Watt's Law. This algebraic equation states that "pi(power measured in watts) is equal to "V" (the voltagemeasured in volts ) times "T" (the current measured in amps).P= VIHere is what you know about the baseball field parking lot situation.There are 9 lamp posts connected to this circuit.Each lamp post has a 400 watt lamp installed.The circuit is 120-volt and 20-amp.Here is what you don't know, but can figure out:How much power canthe circuit handle?(Use Wate's Law)How many watts does 9lampposts require?How many lamppostscould this circuit actuallyhandle? 21. Ronit is buying storage boxes for her CDs. She has456 CDs. Each box holds 36 CDs. How many boxeswill she need?HELP ASAP What figure of speech is used for this sentence: "As from his feet the doubt took wing and rose"*pls help!* pls help Use quadratic regression to findthe equation of the parabolagoing through these 3 points.(-1,-23), (-3,-67), (2,13)y = [ ? ]x2 + [ ]x + [ ] which is a current intraregional migration trend in the united states? Giving brainlist! Please write me a paragraph. - Describe the strategic importance of Somalia giving examples of economic and military strategies Qu espero recibir de la licenciatura en tecnologa en relacin a mi formacin como futuro profesional en educacin el rea de tecnologa y como ser humano afuera de ella? PLEASE I REALLY NEED TO GET THIS DONEType a paragraph in which you use at least two linking commas, two semicolons, and one colon. Question: -3x+2c=-3 for x answer for y = x^{2} 10x How can i multiply 25.00 by 4.19? what is the probability that someone in chicago is stung by a bee