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
kifflom [539]
3 years ago
14

If c is between a and b then ac=cb choices: sometimes, never, always

Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0

we know that

If C is between A and B

then

AB=AC+CB

<u>Examples</u>

<u>N 1</u>

Let

AB=10\ units \\AC=5\ units

Find the value of CB

substitute in the equation above

AB=AC+CB

10=5+CB

CB=5\ units

in this case

AC=CB

<u>N 2</u>

Let

AB=10\ units \\AC=8\ units

Find the value of CB

substitute in the equation above

AB=AC+CB

10=8+CB

CB=2\ units

in this case

AC\neq CB

therefore

<u>the answer is</u>

sometimes

You might be interested in
120 sixth graders are going on a field trip to the Rock and Roll Hall of Fame and Museum. The museum requests a ratio of student
NARA [144]

Answer: 15

Step-by-step explanation:

120 ÷ 8 = 15

5 0
4 years ago
In ∆MNP, m∠N = 90º, NH – altitude, m∠P = 21º, PM = 4 cm. Find MH.
Sveta_85 [38]

Answer:

0.51 cm

Step-by-step explanation:

In right triangle MNP, MP = 4 cm, m∠N = 90°, m∠P = 21°

By the sine definition,

\sin \angle P=\dfrac{\text{Opposite leg}}{\text{Hypotenuse}}=\dfrac{MN}{MP}\\ \\MN=MP\sin \angle P\\ \\MN=4\sin 21^{\circ}\approx 1.43\ cm

Now, consider right triangle HMN (it is right because NH is an altitude). By the cosine definition,

\cos \angle M=\dfrac{\text{Adjacent leg}}{\text{Hypotenuse}}=\dfrac{MH}{MN}\\ \\MH=MN\cos \angle M

In the right triangle, two acute angles are always complementary, so

m\angle M=90^{\circ}-m\angle P=90^{\circ}-21^{\circ}=69^{\circ}

Thus,

MH=1.43\cos 69^{\circ}\approx 0.51\ cm

7 0
3 years ago
At the toll booth, the chance that a driver has exact change is 1/4, independent of vehicle. Find the probability that no vehicl
MAXImum [283]

Answer:

g

Step-by-step explanation:

 b

4 0
3 years ago
Rudi bought 12.5 yards of fabric to make pillows. Each pillow requires 1.75 yards of fabric. Use compatible numbers to estimate
Ipatiy [6.2K]
Hi there!

Using compatible numbers it would be:

12 ÷ 2 = 6.

Now when you divide it, the answer would be close to 6.

So, 12 ÷ 2 = 6 would be using compatible numbers.

Hope this helps ;)
8 0
3 years ago
Read 2 more answers
chelsea takes the bus to school,but she walks home. the bus travels to the school at an average speed of 45 miles per hour. whil
jekas [21]
For this case, the first thing you should know is:
 d: v * t
 Where,
 d: distance
 v: speed
 t: time
 To go to school by bus we have:
 d = 45 * t
 To return from school we have:
 d = 2.5 * (1-t)
 how the distance is the same:45 * t = 2.5 * (1-t)
 Answer:
 the equation that will help find the time it takes chelsea to get to school on the bus is:
 45 * t = 2.5 * (1-t)
 Note: the equation will have one solution. 
4 0
3 years ago
Other questions:
  • What is the constant of proportionality in y=5x
    15·1 answer
  • What is 900000+168763
    6·2 answers
  • How to solve vatiable equations 5x-7=7x-17
    5·1 answer
  • What is the approximate area of a circle with a radius of 15 ft?
    12·1 answer
  • Math question down below
    12·1 answer
  • I have a box of chocolates with white,milk and dark chocolate in. The ratio of white to not white is 3:4. The ratio of not dark
    9·1 answer
  • Can someone pls help? Thx
    14·1 answer
  • A change in a figure that produces an image in a different position or orientation is known as a
    7·1 answer
  • 2(3-q)+5=9 solve for q
    14·1 answer
  • Help me ...Given △ABC≅△EFG, which congruency statement is true?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!