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Semmy [17]
3 years ago
13

What is the common denominator of 1/a+1/b in the complex fraction ((1/a-1/b)/(1/a+1/b)? A^2b^2 a-b a+b ab

Mathematics
1 answer:
S_A_V [24]3 years ago
7 0

Answer:

  • D. ab

Step-by-step explanation:

  • 1/a + 1/b =
  • b / ab + a / ab =
  • (b + a) / ab

The common denominator is ab

Correct choice is D

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Find the volume of each figure. Round to the nearest tenth if necessary.​
RideAnS [48]

Answer:

396

Step-by-step explanation:

the volume of a rectangular is calculated as V=l×w×h

l=11, w=12, h=3

V=11×12×3

V= 396

3 0
3 years ago
6 X (1/2)(5)(4.3) Help pls
REY [17]

Answer:

=64.5

Step-by-step explanation:

6x .5x5x4.3=64.5

4 0
2 years ago
When you flip a biased coin the probability of getting a tail is 0.34. Find the probability of getting a head.
koban [17]

Answer:

If you want to know what the probability is to get at least one Heads, then that is the same as the probability of all the events (100%, or 1) minus the probability of getting all Tails.

There are 100 coins. 99 are fair, 1 is biased with both sides as heads. With a fair coin, the probability of three heads is 0.53=1/8. The probability of picking the biased coin: P(biased coin)=1/100.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve for a<br><br> 3a+2&gt; 3a-6/3
RUDIKE [14]

Answer:

a>-2

Step-by-step explanation:

4 0
3 years ago
Ben made a model (shown below) of the square pyramid he plans to build when he grows up.
elena-s [515]

Answer:

336 m^2

Step-by-step explanation:

The surface area of a square pyramid is the sum of the area of the squared base + 4 times the area of each triangular face, therefore:

A=A_b + 4A_t

where:

A_b=L^2 is the area of the base, where

L is the length of the base

A_t=\frac{1}{2}Lh is the area of each triangular face, where

h is the height of the face

Substituting,

A=L^2+2Lh

For the model in this problem,

L = 12

h = 8

Therefore, the surface area here is:

A=12^2 +2(12)(8)=336

4 0
3 years ago
Read 2 more answers
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