Mathematics High School

For each set of three lengths, determine if they can be the side lengths of a triangle.
Lengths
Can be side lengths
of a triangle
Cannot be side
lengths of a triangle
20, 16, 6
7, 7,3
O
3, 7, 14
O
o
9.9. 25.0, 15.6
O

Answers

Answer 1

Answer:

20, 16, 6 can be side lengths

7, 7, 3 can be side lengths

3, 7, 14 cannot be side lengths

9.9, 25.0, 15.6 can be side lengths

Step-by-step explanation:

The rule for determining if three length can make up a triangle is to consider the length of any of the two and compare with the third length to check if it's greater.

mathematically, assume that a, b, c are three lengths. they will only form a triangle if these three conditions are true.

a + b > c;

b + c > a;

a + c > b;

That is the reason the only 3,7,14 cannot form a triangle because 3 + 4 < 14

Related Questions

Find the measure of the arc. Please help!

Answers

Answer:

The value of mEFD = 214°

Step-by-step explanation:

Given that the measure of the degree of one of the central angles of an inner circle is 146°.

We know that sum of all central angles is 360°.

In other words, in our case

mEFD + 146° = 360°

Thus, we can determine the mEFD using the equation

mEFD + 146° = 360°

so subtracting 146° to both sides

mEFD + 146° - 146°  = 360° - 146°

mEFD = 214°

Therefore, the value of mEFD = 214°

please help me please will give brainliest

please show your work ​

Answers

Answer:

A

Step-by-step explanation:

Area of shape A:  (3x² + 2)(7x² + 4x + 8) = 21x^4 + 12x³ + 38x² + 8x + 16

Area of shape B: (3x² + 2)(3x² + 2) = 9x^4 + 12x² + 4

Difference:  12x^4 + 12x³ + 26x² + 8x + 12

(BRAINLIEST) HELP ASAP!!

Answers

Answer:

0?

Step-by-step explanation:

can u answer these for me thank u. first 2 only

Answers

I think it’s r or q I’m not sure I tried pls brainlest
It’s R (happy b-day)

Help with number one please and thank youuu

Answers

The answer is to the top question is (false)

Answer:

6x-12=8x-16

6x-8x=12-16

-2x=-4

x=2

So it's TRUE

-2 3/4 - 4 7/10 + 2.6 - (1.9) I need it asap as a decimal​

Answers

Answer:

The answer is -6.75

PLS HELP ME ON THIS ASAP!!!!​

Answers

Answer:

a = upward

vertex = -2,4

Step-by-step explanation:

i will answer the rest under comments

The radar radius on the map
is 1000 ft. What is the
circumference of the radar?

Answers

6,283.19, since we're using 2π(radius). so if we plug it in, we have 2π times 1000. hope this helped a bit !!

Mrs. Roy bought pizza for $18.50. She wanted to tip her delivery driver 15%. How much did she give the driver as a tip?

Answers

Answer:

2.775 or if you want to say in terms of money it would be $2.78

Step-by-step explanation:


I need help pleasee

Answers

Answer:

c is the answer

explination:

4*3 1/2=28/2

28/2 divided by 6 is equal to 7/3 or 2 1/3

write 2x + y= 9 in the form of y=mx + b​

Answers

Step-by-step explanation:

2x+y=9 ( y=mx+b)

y=-2x+9

sorry...if its wrong

Answer please need answer brainliest i give you for right answer

Answers

Answer:

I belive It would be Quadant IV (d) if I did everything right sorry if I am not correct.

Please tell me if im not correct thank you.

-3 |x-3|+3=6
Please hell!

Answers

Hai! So your answer for this would be no solution

(20 POINTS!!!)
What is the measure of
A. 60°
B. 80°
C. 110°
D. 120°

Answers

Answer:

A. 60 degrees

Step-by-step explanation:

The sum of the abgles in a triangle is 180°. We are already given 96° and 24°.

so we will subtract the given values from 180 to find the third angle

180-(96+24)=180-120=60°

The answer is A. 60°

describe transformation y=(x+5)^2 -19

Answers

Answer:

y=x^2 +10x+6 should be the answer

Step-by-step explanation:

Solve for p.
7(p- 9) = -34.3

Answers

Answer:

P=4.1

Step-by-step explanation:

Open the parenthesis on LHS.

7p-63=-34.3

Now isolate the variable.

7p=-34.3+63

7p=28.7

Simply Divide.

p=4.1

please hurry!

Jennifer borrowed $720 for a new TV. She has paid 3/4 of the debt. how much does she still owe?

Answers

Answer: yes the answer is 2:5 it isn’t right in just saying sum things

Step-by-step explanation:

720-540= 180 is the answer

Put these in descending order 0.68,0.9,0.81 and 0.86

Answers

Answer:

0.9 , 0.86, 0.81, 0.68

Step-by-step explanation:

i don't know if this has an explanation, you should just order them

0.9, 0.86, 0.81, 0.68


you just order them normally.
don’t be fooled by the fact that 0.9 doesn’t have another number- it means 0.90

(SHOW STEPS)
2(x-5) + 10

Answers

Answer:

2(x-5)+10

2x-10+10

2x is the answer

Step-by-step explanation:

Lily drives 90 miles in 2 hours. If she drives at the same rate, how far does lily travel in each of the following time intervals: 1 hour, 1/2 hour, and 3 hours? Please solve in at least two different ways. You could make a bar model, double number line, ratio table, or graph

How far does she drive in 3 hours

Answers

Answer:

1 hour= 45 miles

1/2 hour=22.5 miles

3 hours= 135

Step-by-step explanation:

just work out one hour by halving 90 miles which is 45. Then work out the rest by halving again and multiplying by 3.

Answer:

1st way:

90/2=45

1 hour = 45 miles

45/2=22.5

0.5 hour = 22.5 miles

45+22.5=67.5

1.5 hour = 67.5 miles

67.5x2=135

3 hours = 135 miles

2nd way:

90 miles - 2 hours

1 hour - 60 minutes

60x2=120

90/120=0.75

1 minute - 0.75 miles

0.75x60=45

1 hour = 45 miles

60:2=30

60+30=90

0.75x90=67.5

1.5 hour = 67.5 miles

60x3=180

0.75x180=135

3 hours = 135 miles

I need help some help with this

Answers

The answer is 3u over 5. 3u/5

The Solomon family uses up a
1
2
-gallon jug of milk every 3 days. At what rate do they drink milk?

Answers

Derslerinde başarılar dilerim ben Türkçe biliyorum İngilizce ama ben de seni çok seviyorum 1. Derslerinde başarılar dilerim bir
4 gallons per day
12gal/3days = 4gal/1day

what is the value of a?​

Answers

Answer:

A=60

Step-by-step explanation:

Add 28+20+12

A=60

Answer:

3.

Step-by-step explanation:

12a+20a+28a=180(sum of interior angle of a triangle )

or, 60a=180

or, a= 180/60

therefore ..... a=3

A clothing store is raising the price of all its sweaters by $3.00. What is an expression that could be used to find the new price of a sweater that originally cost d dollars? *

Answers

Answer:

x+3

Step-by-step explanation:

Answer:

Step-by-step explanation:

The expression would be d + 3.

You're raising $3 in every sweaters cost so d is the cost of the sweater and you add 3 to raise $3 in the price.

Can someone help? Don’t need any working out

Answers

volume= 301.6
curved surface area= 188.5

Tanisha used this table to compare the number of school yearbooks purchased

Answers

Answer:

I can't see the question

Step-by-step explanation:

PLS HELP I HAVE TO TURN THIS IN IN FIVE MIIN!!
Tickets to a play cost $4 in advance and $5 at the door. The theater club president wants to raise at least $400 from the ticket sales. If the club sells 40 tickets in advance, what is the least number of tickets the club needs to sell at the door to reach the president’s goal?

Answers

Answer:48

Step-by-step explanation:

Answer:

48 tickets

Step-by-step explanation:

so multiply the 4 and 40 to get 160, then subtract that from 400. divide by the 5 and then u get 48

brainliest please help i'm a bit confused!

Answers

Answer:

y= 15x+35

Step-by-step explanation:

Answer:

y=15x+35

Step-by-step explanation:

It increases 15 per hour (slope)

And Initial is 35 y-intercept

What is the location of a point 3/4 the distances from -5 to 7?
A.-2
B.9
C.1
D.4

Answers

A is the answer hope this helps

The angle of a quadrilateral are in the ratio 4:6:3 and it's fourth angle is 100. Find the other three angles of the quadrilateral

Answers

Step-by-step explanation:

Sum of angles in a quadrilateral = 360°

Sum of first 3 angles = 360° - 100° = 260°.

260° / (4 + 6 + 3) = 20°.

First angle = (20°) * 4 = 80°

Second angle = (20°) * 6 = 120°

Third angle = (20°) * 3 = 60°

The angles are 80°, 120° and 60°.

Answer:

Let the angles of the quadrilateral be 4x, 6x, and 3x

Sum of the interior angles of a quadrilateral is 360°.

According to the above problem,

[tex]4x + 6x + 3x + 100 = 360 \\ 13x = 360 - 100 \\ 13x = 260 \\ \boxed{x = 20}[/tex]

1st angle=4x=4×20=80°2nd angle=6x=6×20=120°3rd angle=3x=3×20=60°

Hence, the other three angles are 80°, 120° and 60°.

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