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
slamgirl [31]
3 years ago
12

Work out the area of a triangle of bass 12 cm and height 7 cm

Mathematics
2 answers:
ICE Princess25 [194]3 years ago
8 0
1/2 (b x h) 1/2(12) x7 6 x 7 **42**
Paul [167]3 years ago
7 0
The formula for the area of a triangle is 1/2*b*h
The best thing to do is to multiply the answers then half them.
7*12= 84
84/2= 42
Therefore, the area is 42cm2
Hope this helps :) 
You might be interested in
What is the least common multiple of the numbers 5,25, and 15
liubo4ka [24]

Answer:

5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the measure of the missing angles in the kite​
frutty [35]

Answer: 360 - 44 - 80 = 236

236 ÷ 2 = 118

both angle equal to 118

Step-by-step explanation:

5 0
3 years ago
Prove that u(n) is a group under the operation of multiplication modulo n.
katrin2010 [14]

Answer:

The answer is the proof so it is long.

The question doesn't define u(n), but it's not hard to guess.


Group G with operation ∘

For all a and b and c in G:

1) identity: e ∈ G, e∘a = a∘e = a,

2) inverse: a' ∈ G, a∘a' = a'∘a = e,

3) closed: a∘b ∈ G,

4) associative: (a∘b)∘c = a∘(b∘c),

5) (optional) commutative: a∘b = b∘a.


Define group u(n) for n prime is the set of integers 0 < i < n with operation multiplication modulo n.


If n isn't prime, we exclude from the group all integers which share factors with n.


Identity: e = 1. Clearly 1∘a = a∘1 = a. (a is already < n).


Closed: u(n) is closed for n prime. We must show that for all a, b ∈ u(n), the integer product ab is not divisible by n, so that ab ≢ 0 (mod n). Since n is prime, ab ≠ n. Since a < n, b < n, no factors of ab can equal prime n. (If n isn't prime, we already excluded from u(n) all integers sharing factors with n).


Inverse: for all a ∈ u(n), there is a' ∈ u(n) with a∘a' = 1. To find a', we apply Euclid's algorithm and write 1 as a linear combination of n and a. The coefficient of a is a' < n.


Associative and Commutative:

(a∘b)∘c = a∘(b∘c) because (ab)c = a(bc)

a∘b = b∘a because ab = ba.


5 0
2 years ago
Read 2 more answers
PLEASE HELP ME
Novay_Z [31]
11.25 inches. Divide 1800 by 160 and get your answer
8 0
3 years ago
HELPPP I SUCK AT MATH
e-lub [12.9K]
I think the answer is 6
4 0
3 years ago
Other questions:
  • A deposit of 10000 at 9.5 for 90 days
    12·1 answer
  • 66​% of men consider themselves professional baseball fans. you randomly select 10 men and ask each if he considers himself a pr
    5·1 answer
  • Solve -6n+5=59 it’s a 2 step equation and I need to no how to do it step by step
    14·1 answer
  • What is 857/45 as a mixed number? having trouble with sixth grade math.
    9·1 answer
  • Adhy, Ben and Clayson shared a bag of chocolates. The ratio of Adhy's share to Ben's share is 3:4 while
    14·1 answer
  • HELP:( WILL GIVE BRAINLIEST!!!!
    14·1 answer
  • A certain circle can be represented by the following equation. x^2+y^2+18x+14y+105=0 What is the center of the circle? What is t
    8·1 answer
  • Write a function for p(x), the profit from selling x necklaces.
    7·1 answer
  • Mrs. Lopez cut 46 cm of yarn miss Hamilton cut 22 cm less than Miss Lopez how many centimeters of yarn does Miss Hamilton cut
    5·1 answer
  • Please help...........​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!