1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
777dan777 [17]
3 years ago
11

Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two

Mathematics
2 answers:
kari74 [83]3 years ago
8 0
8cm and 9 cm because the sum of the two sides must be greater than 13.

5+8=13
6+7=13
7+2=9
8+9=17
Ludmilka [50]3 years ago
6 0

Answer:

8 cm and 9 cm

Step-by-step explanation:

Hi there!

The sum of the lengths of two sides of a triangle must <em>always be greater</em> than the length of the third side.

5 cm and 8 cm ⇒ 5+8=13; not greater than 13

6 cm and 7 cm ⇒ 6+7=13; not greater than 13

7 cm and 2 cm ⇒ 7+2=9; not greater than 13

8 cm and 9 cm ⇒ 8+9=17; greater than 13

Therefore, the last set of two sides is possible for the lengths of the the other two sides of this triangle.

I hope this helps!

You might be interested in
Y=−5x2+ 6x− 3 y=−4x− 3<br><br> using elimination or subsutution
Elena-2011 [213]

Step-by-step explanation:

My math is terrible but I think u should eliminate and substitute.

4 0
2 years ago
Read 2 more answers
the length and width of a rectangle are whole numbers of centimeters. neither is divide by 6.the area of the rectangle is 36 squ
liraira [26]

Note that

  1. 36=1·36;
  2. 36=2·18;
  3. 36=3·12;
  4. 36=4·9;
  5. 36=6·6.

If neither (length and width) is divide by 6, then cases 1, 2, 3 and 5 are extra, because

  1. 36:6=6 (is divide by 6);
  2. 18:6=3  (is divide by 6);
  3. 12:6=2  (is divide by 6);
  4. 6:6=1  (is divide by 6).

The only possible dimensions are: width - 4 cm and length - 9 cm.

Then the perimeter is

P=4+9+4+9=26 cm.

Answer: 26 cm.

3 0
3 years ago
The curves r1(t) = 4t, t2, t3 and r2(t) = sin(t), sin(5t), 2t intersect at the origin. find their angle of intersection, θ, corr
san4es73 [151]
First get the tangent vectors by differentiating r1 and r2 
r_1 '(t) = (4,2t,3t^2) \\  \\  r_2'(t) = (cos (t), 5 cos(5t), 2)
Evaluate at t=0
r_1' = (4,0,0) \\  \\ r_2' = (1,5,2)

Use identity for angle between 2 vectors:
u*v = |u| |v| cos \theta

Evaluate dot product and unit vectors:
u*v = (4,0,0)*(1,5,2) = 4 \\  \\ |u| = \sqrt{4^2 +0^2+0^2} = 4 \\  \\ |v| = \sqrt{1^2 + 5^2+2^2} = \sqrt{30}

Sub into identity and solve for theta:
4 = 4 \sqrt{30} cos \theta \\  \\ cos\theta = \frac{1}{\sqrt{30}} \\  \\ \theta = 79.48

Answer:
Angle of intersection is about 79 degrees.




5 0
3 years ago
What produces a graph in a straight line
Blababa [14]
Linear equations in one variables shows always graph in straight line,

For ex: x = 3, y = 4, x = -1.5, y = -2/3

Also two variables linear equations with degree of 0 or 1 (Each term) shows always graph in straight line,

For ex: x + y = 5, 2x - 4y = 7 etc.
8 0
3 years ago
7. The Quotient
nasty-shy [4]

Answer:

<h3>The number is 500</h3>

Step-by-step explanation:

Let the number be x

The quotient of a number divided by five is written as

\frac{x}{5}

the number decreased by 400 is written as

x - 400

Equate the two expressions

We have

\frac{x}{5}  = x - 400

Multiply through by 5

That's

x = 5x - 2000

x - 5x = - 2000

- 4x = - 2000

Divide both sides by - 4

x = 500

Hope this helps you

3 0
3 years ago
Other questions:
  • Solve by factoring and show work x^2-3x-10=0
    8·2 answers
  • Solve 2r – 15 = -9r + 18.
    7·2 answers
  • The distance a car travels is directly related to the time it travels. The distance is 300 miles when time is 5 hours. What is t
    15·1 answer
  • a company observes the lifespan of 560 lightbulbs and finds that their data follows a normal distribution. what is the approxima
    9·1 answer
  • Which of the following represents a fixed location in space.
    15·2 answers
  • Solve using elimination.
    6·1 answer
  • What’s the slope? thanks if you help me :)
    12·1 answer
  • The exam will have true/false and short answer questions.
    8·1 answer
  • HELP FAST!!!!!!!!!!!! WILL AWARD BRAINLIEST!!!!!! I WILL GIVE YOU ALL OF MY POINTS IF YOU GET THIS
    13·1 answer
  • Help please<br>What is e in math? ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!