Two of the angles in a triangle measure 21° and 40°. What is the measure of the third angle

Answers

Answer 1

Answer: 119°

Step-by-step explanation:

The total of the interior angles of a triangle is 180° so if you add the two angles you have, you get 61 and just subtract that from 180 to get the missing angle.


Related Questions

how do i figure out prime numbers

Answers

Answer:

You can figure out prime numbers by simply knowing that you can divide that number not more than one. For example, you could know that a prime number is 7 because you can only divide it once like 7 divided by 1. While for number 14, you can divide it twice which isn't a prime number because there is 14 divided by 2 and 14 divided by 1 which is more than one to divide. That's possibly an easy way to understand how to figure them out.

An isosceles triangle has two congruent side lengths of 20 centimeters. The base of the triangle is 10 centimeters. Find the height of the
isosceles triangle

(Use the Pythagorean Theorem & DONT GIVE ME THE ANSWER, I JUST WANT THE EQUATION) Thx :)

Answers

Answer:

(half of base)² + (height)² = (20)²

Step-by-step explanation:

In an isosceles triangle, the angle bisector from the 3rd angle to the opposite side is a perpendicular bisector, so you split the isosceles triangle into two congruent right triangles.

This technique of 'splitting the isosceles' is used a LOT.

Find the distance between C(-5,4) and Q(2,0)

Answers

9514 1404 393

Answer:

  √65 ≈ 8.06

Step-by-step explanation:

The distance formula is used for the purpose.

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((2 -(-5))² +(0 -4)²) = √(7² +(-4)²) = √(49 +16)

  d = √65 ≈ 8.0622577

The distance between C and Q is √65, about 8.06 units.

i need help pleaseeee

Answers

Answer:

I did this question just the other day. The answer you are looking for is B or the second one.

Step-by-step explanation:

25+c+b

Answer Choices:
A)41
B)32
C)40
D)37

Answers

Answer:

C

Step-by-step explanation:

y - 7.74 = 9.1
solve for y

Answers

Add 7.74 to both sides and then it will be y=16.84

ANSWER y=16.84

Answer:

y = 16.84

Step-by-step explanation:

y - 7.74 = 9.1

=> y = 9.1 + 7.74

=> y = 16.84

Meg and Rosa played a game. The game lasted 35 minutes and ended at 10:20 a.m.


What time did the girls begin playing the game?

Answers

Answer:

9:45 am

Step-by-step explanation:

Hope this helps!

Answer:

10:15

Step-by-step explanation:

make m the subject of your formula. f = 4m+3/m-1

Answers

Answer:

m = 3+y/y-4

Step-by-step explanation:

Two students, Abby and Melissa go for a walk. Abby begins walking 30 seconds earlier than Melissa .

-Abby walks at a speed of 8 feet per second.
-Melissa walks at a speed of 9 feet per second.

Abby had been walking for BLANK seconds when both students had walked exactly the same distance. (round to the nearest whole)
please help me

Answers

Answer:

270 seconds

Step-by-step explanation:

Melissa's time = x seconds

Abby's time = (x + 30) seconds

Abby walks at a speed of 8 feet per second, and Melissa walks at a speed of 9 feet per seconds.

But, speed = [tex]\frac{distance}{time taken}[/tex]

For Abby,

8 = [tex]\frac{distance}{(x + 30)}[/tex]

distance = 8(x + 30) ................. 1

for Melissa,

9 = [tex]\frac{distance}{x}[/tex]

distance = 9x ............. 2

From equations 1 and 2, for the same distance;

8(x + 30) = 9x

8x + 240 = 9x

x = 240 seconds

Abby's time = (x + 30)

                    = (240 + 30)

                    = 270 seconds

So that Abby has been walking for 270 seconds when both students had walked exactly the same distance.

The time taken is 270 seconds.

Given that,

Two students, Abby and Melissa go for a walk. Abby begins walking 30 seconds earlier than Melissa . Abby walks at a speed of 8 feet per second. Melissa walks at a speed of 9 feet per second.Here we assume Melissa time be x and Abby time be x + 30

Based on the above information, the calculation is as follows:

8(x + 30) = 9x

8x + 240 = 9x

x = 240

So Abby time should be

= 240 +  30

= 270

Learn more: brainly.com/question/17429689

Write the standard equation for the circle center (–9, 6), r = 9

Answers

Answer:

Step-by-step explanation:

(x+9)² + (y-6)² = 9²

At a competition 24 of the 40 members of a middle school band won a middle. What percentage of the of the band won a middle?

Answers

Answer:

60%

Step-by-step explanation: 24/40 equals .6. Multiply .6 by 100 to get your percentage, which equals 60%. hope this helps

PLSSSSS HELP DUE IN 3 min Write the equation of the line in fully simplified slope-intercept form.

Answers

Y=-1/3x-1 I believe is the correct answer

Please help!!!!
a sweet snack and a salty snack. Here is a two-way table showing the number of adults
and children who made each choice of snack. Answer each question below using the
table.
sweet snack salty snack total
adult 57
88
145
child 77
31
108
total 134
119
253
134
1. How many total people chose sweet snacks?
people
145
adults
2. How many adults chose salty snacks?
3. What percentage of the people who attended the social were children?
Round your answer to the nearest tenth. Do NOT grid in the percent symbol.

Answers

Answer:

76

Step-by-step explanation:

khan x math

20 of the cats at the pet store are white, which is 25% of all of the cats. How many cats are there at the pet store?

Answers

Answer:

the

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

25%X4=100%

20X4=80

Destiny said that 0.6 divided by 2 equals 0.3 is she correct​

Answers

Answer:

Yes

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

yes

a rectangular field has as dimensions 49 m and 36 m calculate the length of the side of square having the same area as the fieldI want the solution

Answers

Answer:

length =25m

breadth =16m

area of rectangle =25*16

according to question

area of rectangle =Area of Square

Area of squre =400m

Side *Side =400m

(Side)=(20m)

Side =20m

(100Y 2 - 7ΟΥ + 49) (10Y + 7)
we have to multiply

Answers

Answer:

1300y^2+1400y+343

Step-by-step explanation:

Use FOIL to cancel out the products

Create and solve a multiplication problem to show that the product of a whole number and a fraction will be equal to the whole number.

Answers

7 x the whole number 8.5 is mixed and is 3.72

sharon said she spent 5/7 of her clothing allowance on a winter. if she was givan a $70 clothing allowance, how much was the coat​

Answers

Answer:

$50

Step-by-step explanation:

1. First you need to divide 70 by 7.

2. Your answer should be 10.

3. You then need to multiply the product, 10 by 5.

4. You answer should be 50 and because we are using this in a money situation the answer is $50.

Answer:

50

Step-by-step explanation:

Which expression is equivalent to 5x +10y-15?
A. 5(x-2y-3
B. 5(x5y-10
C. 5(x+2y-3
D. 5(x2y-15

Answers

Answer:

C

Step-by-step explanation:

Answer:

its   a hehehehehehhehehe\

Step-by-step explanation:

plz help me step by step

Answers

Answer:

x = - 6    

Step-by-step explanation:

Equation

1/3 * (-9x +12) = 22                Multiply both sides by 3

Solution

3 * 1/3(-9x + 12) = 22*3

- 9x + 12 = 66                        Subtract 12 from both sides.

-9x = 66 - 12                         Combine

-9x = 54                                Divide by -9

x = 54/-9

x = - 6

1) Um barbante tem 10,85 metros de comprimento. Se você dividir em 5 pedaços de mesmo comprimento, quantos centímetros terá cada pedaço? * 1 ponto (a) 2,17 cm (b) 217 cm (c) 21,7 cm (d) 0,217 cm

Answers

Answer:

(b) 217 cm

Step-by-step explanation:

The computation of the number of centimeters will each have is shown below:

= Length of the string ÷ number of pieces

= 10.85 meters ÷ 5

= 2.17 meters

= 217 centimeters

hence, the correct option is b.

Find the slope: (-2,5) and (2,1

Answers

-1,4 I think so, good luck

Tony drove for 2 hours at a constant rate of 65 mph. It started to rain, so he slowed his rate to a constant 50 mph for 3 hours. When the rain stopped, Tony finished the trip driving at a constant rate of 60 mph for the final hour. How far did Tony travel? A. 175 mi. B. 240 mi. C. 275 mi. D. 340 mi.

Answers

Answer:

B. 240mi.

Step-by-step explanation:

Answer:

D. 340

Step-by-step explanation:

Proof: I put all the constants together to equal 340.

(not much proof but believe me)

what is 163,653÷200 ?​

Answers

Answer:

818.265

Step-by-step explanation:

Are these two lines parallel? Why or why not?
y=5x+6 and y=6x+5

Answers

Answer:

No

Step-by-step explanation:

The slopes of the equations are unequal, meaning the lines are not parallel and will eventually intercept

I need help with numbers 17 and 11. worksheet down below :) thank you. I'm using all my points so let this be the time I use my points wisely.
(sry I dont have a lot of points. I only have 20)

Answers

Answer:

12-8+3 for the numerical and 2x=3y-6 for the algebraic expression

Step-by-step explanation

Numerical expression consists of numbers and one operation

Algebraic expression consist of multiple varaibles  and constents

Answer:

numerical expression: 5+20-9= 16

algebraic expression: 6p +18

Use the distributive property to remove the parentheses.
-5(-w-3v+6)

Answers

Answer:

5w+15v-30

Step-by-step explanation:

A teacher asks each student in the class to randomly choose a number between 1 and 80 and write it down. Devon and Michiko write down a number. What is the probability that both of their choices will be greater than 60? Express your answer as a decimal. If necessary, round your answer to the nearest thousandth.

0.063
0.06
0.938
0.25

Answers

Answer:

0.063

is the correct answer

Answer:

0.063

Step-by-step explanation:

Bridget is a sales person. She sold a microwave for $70 and earned 5%commission. How much commission did Bridget earn?

Answers

The answer is $3.50.
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