Mathematics College

if two angles in a triangle are 60° and 30°, is the third angle acute, obtuse, or right?​

Answers

Answer 1

Answer: Right Angle

Step-by-step explanation:

And Since The Angles Of a Trangle Add Up To 180° When You Substract 90 From It You Remain With Another 90° Which Means The Angle Is Non Other Than a right angle traingle

60° + 30° = 90°

180° - 90° = 90°

∴ 90° = Right Angle Traingle

Related Questions

solve these equations, show all your work 7x=14

Answers

Answer:

x=2

divide everything by 7. 14/7= x=2

Step-by-step explanation:

12 points help fast I need help

Answers

Answer:

False, False, True, True

Step-by-step explanation:

1

IQR'sRide A: 30 - 20 = 10Ride B: 30 - 10 = 20False, as 10 < 20

2

MediansRide A: 25Ride B: 20False, as 25 > 20

3

RangesRide A: 45 - 5 = 40Ride B: 35 - 0 = 35TRUE, as 40 > 35

4

MinimumRide A: 5Ride B: 0TRUE, as 0 < 5

If U = {1,2,3,......., 15), A = {1,3,5,7,9}, B = {1,2,3,4,5,6,7}
& C = {3,6,9,12,15), find the value of (A - B)UC.​

Answers

Answer:

A-B means which is only in A not in B

Step-by-step explanation:

A-B={1,3,5,7,9}-{1,2,3,4,5,6,7}

={9}

(A-B)UC={9}U{3,6,9,12,15}

={3,6,9,12,15}

Answer:

the answer is a and b and h

thank

Write the quadratic equation in standard form:
8x2=8x + 13 + 4x2

Answers

x=2=|17/2

| means square root btw

and i put / to make it a fraction

please help me i really need help please

Answers

V= 735.62

volume formula for sphere is v= 4/3 π r3
the radius is half of the diameter so v= 4/3 π 5.6 3

i think?

Need Help Asap Please

Answers

Answer:

corporation C owns the most land

Step-by-step explanation:

hope it helps

The weight of oranges growing in an orchard is normally distributed with a mean weight of 5.5 oz. and a standard deviation of 1 oz. Using the empirical rule, determine what interval would represent weights of the middle 68% of all oranges from this orchard.
pleaseeee help me now, im taking a test and it's timed

Answers

The interval is (4.5, 6.5)

This is bevause 1 standard deviation contains 34% of the sample in a normal distribution, so 1 standard deviation on either side is 68% and so you +\- 1 oz from the mean.

PLEASE HELP!!! Find (angle) BAD.

Answers

Answer:

125

Step-by-step explanation:

31+24= 55 180-55= 125

Find the area of the polygon.

Answers

Answer:

To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides. Hope this helps !!

Step-by-step explanation:

pyramid = 40
prism = 30
prism = 30
Wprism = 30
What is the volume of this solid?
O A. 39,000
B. 63,000
C. 100,800
D. 27,000

Answers

Answer:

A. 39,000.

Step-by-step explanation:

Volume of the lower prism = 30^3= 27,000

Volume of the pyramid = 1/3 area of the base * height

= 1/3 * 900 * 40

= 1200

Volume of the whole solid = 27000 + 12000

= 39,000,

Jada walks dogs to earn money. The points in this graph represent the total amount of money Jada earns based on the number of hours she walks dogs. Jada wants to purchase a new jacket that costs $32.

How many hours does Jada need to walk dogs to earn enough money to buy the jacket?

Answers

Answer:

Eight Hours.

Step-by-step explanation:

Since she makes 4$ in 1 hour, you divide 32 by 4 to see how many hours it would take her.

32 divided by 4 = 8

Jada needs 8 hours to walk dogs to earn enough money to buy the new jacket which costs $32.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

Jada wants to purchase a new jacket that costs $32.

Since she makes 4$ in 1 hour

So, Time is taken to earn money to 4$ = 1 hour

      Time is taken to earn money to1$  = 1/4hour

Time is taken to earn money to 32$ = 32/4hour

                                                   = 8 hour

Thus, Jada needs 8 hours to walk dogs to earn enough money to buy the jacket.

Learn more about the unitary method;

https://brainly.com/question/23423168

HELP PLEASE I NEED TO PLOT THIS POINT :)

Answers

The point would be at (-6,5) I believe. Sorry if this is incorrect.

Part 3a. NO LINKS. Find the measure of the arc or angle indicated.​

Answers

9514 1404 393

Answer:

  99°

Step-by-step explanation:

Arc YZ is twice the measure of angle X, so is 136°. The sum of the arcs of a circle is 360°, so the unknown arc is ...

  360° -136° -125° = 99° . . . . measure of arc XZ

Answer:

Solution given:

<x=68°

arc XY=125°

arc XZ=?

we have

<X+<W=180°[sum of opposite angle of a cyclic quadrilateral is supplementary]

<W=180°-68°=112°

Now

arc YZ=2×112°=224°[central angle is equal to the twice of its inscribed angle]

arc YZ=224°

arc XY +arc YZ=224°

125°+arc YZ=224°

arc YZ=224°-125°

arc YZ=99°

the measure of the arc or angle indicated is 99°.

Need help solving this!

Answers

Answer:

A = 4πcm, 6πcm²

B = 45°, 35πcm²

C = 12m, 18.7πm or 19πm

Step-by-step explanation:

Formulas used...

Length of an arc of a sector = (¢/360)×2πr

Area of sector = (¢/360)×πr²

¢ means the angle given or used

I need this answer as quick as possible!

A watercolor painting is 25 inches long by 12 inches wide. Ramon makes a border around the watercolor painting by making a mat that adds 3 inches to each side of the length and the width. What is the area of the mat?

Answers

Answer:

the area of the mat = total area added minus the original area of the water color painting.

Step-by-step explanation:

length of the mat is:L = 20 in + 1 in + 1 in because 1 in  is added to each sideL = 22 inwidth of the mat is:w = 9 in + 1 in + 1inw = 11 in

Area mat = (22 in x 11 in) - ( 20 in x 9 in)

area mat = 62 sq in is the area of the mat

Need help asap! Please and thank you

Answers

Answer:

D

Step-by-step explanation:

The answer is D.

(Hope this helped)

Find the value of cos[cos^-1(sqrt 2/2)-n/2]

Answers

Answer:

I highly think it's D. [tex]\frac{\sqrt{2} }{2}[/tex]

Step-by-step explanation:

Solve 4y^2+7y+2=0 to 2 decimal places​

Answers

Answer: There were two sloutions either y= -1/4= -0.250 or y=2

mrs. freeman is paying for a $20 meal. she has a 15% off coupon for the meal. after the discount , a 7% sales tax is applied.

what does mrs freeman pay for the meal

Answers

Answer:

Lin's father pay for the meal is $18.19

Step-by-step explanation:

Given:

Lin’s father is paying for a $20 meal.

He has a 15%-off coupon for the meal.

After the discount, a 7% sales tax is applied.

Now, to get the amount Lin's father pay for meal.

So, we deduct the 15% discount first:

$20 - 15% of $20.

Then, adding 7% sales tax:

$17 + 7% of $17

Therefore, Lin's father pay for the meal is $18.19.

WHAT HAPPENS WHEN NON-METALLIC ELEMENTS ARE COMBINED

Answers

When a nonmetal combines with another nonmetal , a covalent compound is formed

A swimming pool is open for 7 1/2hours during a day. The pool keeps one lifeguard on
duty at a time, and each lifeguard's shift is 2 1/2hours long. How many shifts are there
per day?
7 shifts
5 shifts
3 shifts
4 shifts

Answers

Answer:

3 shifts a day

Step-by-step explanation:

7 1/2 hours = 7.5 2 1/2 hours = 2.5

7.5 divided by 2.5 = 3

Answer:

3 shift

Step-by-step explanation:

7 1/2 / 2 1/2

(15/2) / (5/2)

keep, change, flip

(15/2) x (2/5)

30/10 = 3 shifts

x = 12 − y
2x + 3y = 29

Answers

So if these are simultaneous equations here are the steps:


Bring the variables to one side and the constants to the other side of the equal sign. Remember if you bring anything to the other side it’s sign has to change:


x + y = 12
2x + 3y = 29


Now multiply a variable on the top equation so that it will be equal with the variable on the second:

3x + 3y = 36
2x + 3y = 29


Now subtract the equations which gets you:

x = 7


So we know what the x is, now we have to substitute the x in an equation we created; we’ll go with x + y = 12:

x + y = 12

= 7 + y = 12


Now bring the variable to one side and constants to the other like we did before (remember, the sign must change if the constant or variable is moved to different sides of the equal sign):


y = 12 - 7, which would equal y = 5.


So our answer would be:

( x, y ) = ( 7, 5 )

Hope this helps have an awesome day!

You are traveling in a car. Your speed is 30 miles per hour. What is your speed in feet per minute?

Answers

Answer:

.5

Step-by-step explanation:

30 miles a hour divide by 60 so your going half a mile a minute

Your speed in feet per minute is 2640 ft/min.

What is unit rate?

A unit rate means a rate for one of something.

Given that, Your rate of speed is 30 miles for every 1 hour

We know, 1 mile = 5280 feet

Therefore, 30 miles = 30x5280 = 158400 feet

That means, you are travelling 158400 feet for every hour

In an hour, there are 60 minutes,

Therefore, you are travelling 158400 feet in every 60 minutes.

In 60 minutes = 158400 feet

In 1 minute = 158400/60 = 2640 feet

That means you are travelling 2640 feet in every 1 minute.

Hence, your speed in feet per minute is 2640 ft/min.

For more references on unit rate, click;

https://brainly.com/question/11258929

#SPJ2

Can someone help me rnnn please??

Answers

Answer:

No, they are the same triangles

Step-by-step explanation:

They both have a side length of 3 and 5 and an angle that measures 60 degrees. The triangles are just flipped in different directions.

If they were to draw an additional triangle that would make it seem different, they could expand the angle and make it obtuse to get a triangle with 1 wide corner.

Please help me out here

Answers

Answer:

40*

Step-by-step explanation:

the whole line FC would measure 180* so then 180-50 for AGC then AGB is congruent to EGD so 180-50-90---> 130-90---> 40* so angleBGC is 40 degrees

Can someone please help?

Answers

Answer:

Step-by-step explanation:

1/4 < 3/8

Answer:

The third one, 1/4 < 3/8

Step-by-step explanation:

The sign < means 3/8 is bigger than 1/4

Hiiiiiii pls helppppppppp plsssss and thxxxxxx

Answers

Answer:

It's A I believe

Step-by-step explanation:

Answer:

D, 1056 Cubic inches

Step-by-step explanation:

Multiply 11x16 to get the 2-d area of it's base. after multiply by 8 to get its hieght. You have the volume of the shape with the step-down filled. To find the volume with the step down empty, divide by 4 to get the area of 1/4. then multiply by 3 to find 3/4 of the rectangular prism

{[(11×16×8)÷4]3}     <== Equation

Where did paco make an error in his calculation?Explain.

Answers

Answer:

He made a mistake in step 2

Step-by-step explanation:

-3x does not equal 6 it clearly states it equals 1

List of 7 consecutive composite numbers less than 100. ​

Answers

Answer:

4

6

8

9

10

12

14

Step-by-step explanation:

any number that is not a prime number

Answer:

2,3,4,5,6,7,8

Make me brainliesttt :))

A team won 5 and lost 2 of their first 7 games. The
team continued to win at this rate and won w
games in the 28-game season. Which of the
following proportions could be used to determine w?

Answers

Answer:

5/7=W/28

Step-by-step explanation

They won 5 out of 7 played games so that's their win rate. If the same team continued to do this for 28 games then they would win 20 times.

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