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
IceJOKER [234]
2 years ago
8

If a= 2, b= -3 and c= 4 evaluate ab-bc ​

Mathematics
1 answer:
Harrizon [31]2 years ago
6 0

Answer:

ab - bc = 6

Step-by-step explanation:

COMPUTATION:

ab - bc = ?

(2 x -3) - (-3 x 4) = ?

(-6) - (-3 x 4) = ?

(-6) - (-12) = ?

-6 + 12 = 6

Hope this helps!

You might be interested in
❗️Please help BIG POINTS❗️
Inessa [10]
Dude, what kind of question is this??? Here's my best shot.
If they start at the 32-mile mark, then the we can use 32 as the intercept. 50 can be the change in position over time, so 
y=50x+32 (?)

5 0
3 years ago
The outer and inner triangles are both equilateral and the circle touches all three sides of the outer triangle. If the area of
Brrunno [24]

Answer:

The area of outer Δ = 40 cm²

Step-by-step explanation:

∵ Area of the small triangle = 10 cm²

If we join the center of the circle with the 3 vertices of the inner Δ

These 3 segments are the radii of the circle

Now the inner triangle has 3 isosceles Δ their sides are r , r and s1 with vertex angle 120° ⇒ (360° ÷ 3 = 120°)

Where r is the radius of the circle and s1 is the side of the inner triangle

<em>By using cosine rule</em>

(s1)² = r² + r² - 2r²cos120 = r² + r² - 2r² (-0.5) = r² + r² + r² = 3r²

∴ s1 = r√3

∵ The radius of the circle ⊥ to the side of the outer Δ because the side of the outer Δ is a tangent to the circle

If we join a vertex of the outer Δ with the center of the circle

We will have a right angle triangle of two legs r and half s2 with angle 60° (120° ÷ 2 )between them ⇒ s2 is the side of outer Δ

∴ tan 60° = 1/2 (s2) ÷ r ⇒ √3 = 1/2 (s2) ÷ r = (s2)/2r

∴ s2 = 2r√3

∴ s2 : s1 = 2r√3 ÷ r√3 = 2 : 1

∴ The side of the outer Δ is double the side of the inner Δ

<em>By using similarity ratio</em>

A2/A1 = (s2/s1)² ⇒ A2 and A1 are the areas of outer and inner triangles

∴ A2 : A1 = (2/1)² = 4/1  

∴ A2 = 4 A1

∴ A2 = 4 × 10 = 40 cm²

5 0
3 years ago
Use the slider to change the value of h. How does changing the value of h affect the vertex?
vodka [1.7K]
It moves the line on the X axis to a different spot when moved

hope this helps <span />
3 0
3 years ago
Read 2 more answers
Identify the factors of x2 − 5x − 24. (x + 8)(x − 3) (x − 8)(x + 3) (x + 4)(x − 6) (x − 4)(x + 6)
Elza [17]
(x-8)(x+3) is the only factor

5 0
2 years ago
Read 2 more answers
Which expression is equivalent to √900f^6/100g^4
krek1111 [17]

Answer:

A

Step-by-step explanation:

c and d cannot be since the answer to sqrt((900f^6)/(100g^4)) is 3f³/g²

and not 30f something.

the best answer I see is correct is a.

6 0
3 years ago
Other questions:
  • !!HHEELLPP!! Which shows the graph of the solution set of x + 2y &gt; 4? Image for option 1 Image for option 2 Image for option
    11·2 answers
  • The area of David's living room is 18.087 square yards, and their bedroom has an area of 15.78 square yards.Round to the nearest
    7·1 answer
  • Simplify the expression. 7C3<br><br> A. 5,040<br><br> B. 210<br><br> C. 1<br><br> D. 35
    11·2 answers
  • PLEEASSE HELP:))) (theres a pic)
    10·1 answer
  • How do you solve the problem 2/7y+5=-9 and you are trying to find what y stands for
    13·1 answer
  • I need help urgent plz someone help me solved this problem! Can someone plz help I’m giving you 10 points! I need help plz help
    12·1 answer
  • -12x4m8n 6x5m-10n-6​
    15·2 answers
  • The power is the probability that the assembly process is not stopped when it should be because a high number of defective items
    8·1 answer
  • The equation of the line that passes through points (0, negative 7) and (2, negative 1) is shown below. What value is missing fr
    13·2 answers
  • Pls help will give brainilist
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!