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saveliy_v [14]
3 years ago
13

« 13. Given that R= {a,b,c}, S = {b, c, d}

Mathematics
1 answer:
Sphinxa [80]3 years ago
7 0

Answer:

R= {a,b,c}

S = {b, c, d}

T = {c, d, e},

Step-by-step explanation:

R U S U T. ={a,b,c}U{b, c, d}U{c, d, e},={a,b,c,d,e}

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What is the measure of Zc<br>​
maks197457 [2]

Answer: 56 degrees

Step-by-step explanation:

We know that angle between b and c is 90 degrees. Because there is a line dividing angles a and b from 124 and c, we also know that each side is 180 degrees (a and b add to 180, and 124 and c add to 180).

124 and c are supplementary angles. We can represent this in an equation to solve for c:

124 + c = 180\\\\c = 56

3 0
3 years ago
Match each expression in the left column with the correct product in the right column.
lesya692 [45]

Answer:

-6

-6i

6i

6

Step-by-step explanation:

1) √4 . √-3 . √-3

$ \sqrt{4} = 2 $

$ \sqrt{-3} . \sqrt{-3} = (\sqrt{-3})^2 $

$ \sqrt{4} . (\sqrt{-3})^2 = 2 \times -3 = $ -6

2) √-4 . √-3 . √-3

$ \sqrt{-4} = 2i $ .

Therefore, $ \sqrt{-4} . \sqrt{-3} . \sqrt{-3} = 2. \sqrt{-1}  \times -3 = 2i \times (-3) =  $ - 6i

3) √4 . √3 . √-3

$ \sqrt{4} = 2 $

$ \sqrt{3} . \sqrt{-3} = (\sqrt{3})^2 . \sqrt{-1} $

$ \implies 2 \times 3i = $ 6i

4) √4 . √3 . √3

$ \sqrt{4} = 2 $

$ \sqrt{3} . \sqrt{3} = (\sqrt{3})^2  = 3 $

Therefore, √4 . √3 . √3 = 2 . 3 = 6

5 0
3 years ago
How do i use long division? its hard for me...
Sergio039 [100]
Divide across and just bring down the numbers
3 0
3 years ago
EXPERTS, ACES, GENIUSES, TRUSTED HELPERS, AND ELITE HELPERS ONLY PLEASE!!!
charle [14.2K]
8) factor 6+17g+10g^2
10g^2+17g+6
(5g+6)(2g+1)
C is the answer.

9) which one is a perfect square?
4x^2-14x+49 doesn't factor
4x^2-28x+49=(2x-7)(2x-7)
x^2-x+1 doesn't factor
x^2-2x+2 doesn't factor
B is the answer.

11) factor y^2-2y-48
(y+6)(y-8)
D is the answer

12) for the last one you can multiply the answers out of factor.

Sorry this took forever. It's hard to use the website cuz I'm used to the app.


Best wishes!


4 0
3 years ago
Read 2 more answers
I need help! Please help ASAP
sesenic [268]

Answer:

A

Step-by-step explanation:

It should be all positive

5 0
3 years ago
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