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Nastasia [14]
2 years ago
9

WILL GIVE BRAINLIST

Mathematics
1 answer:
just olya [345]2 years ago
8 0

Answer:

The Answer Is E, $6.75

Step-by-step explanation:

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Let A = R−{0}, the set of all nonzero real numbers, and consider the following relations on A × A. Decide in each case whether R
andre [41]

Answer:

Step-by-step explanation:

Let A = R−{0}, the set of all nonzero real numbers, and consider the following relations on A × A.

Given that (a,b) R (c,d) if ad=bc

Or (a,b) R (c,d) if determinant

\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] =0

a) Reflexive:

We have (a,b) R (a,b) because ab-ab =0 Hence reflexive

b) Symmetric

(a,b) R (c,d) gives ad-bc =0

Or da-cb =0 or cb-da =0 Hence (c,d) R(a,b). Hence symmetric

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5 0
3 years ago
Please answer this question only if you know the answer. 28 points and brainliest!
kari74 [83]

Answer:

With sample sizes greater than 30, 36 university women. so 66

4 0
2 years ago
please.. this is due by midnight and i’m close to tears.. from a point in a straight road, Chris and Elena ride bicycles in the
blondinia [14]
Chris is going 10 mph. After 9 hours, Chris has gone 90 miles. Elena is going 14 mph. After 9 hours, she has gone 126 miles. 126 miles is 36 miles more then 90 miles.

10 \times 9 = 90 \\ 14 \times 9 = 126 \\ 126 - 90 = 36
4 0
3 years ago
39 is the percent of 12.5
Rashid [163]
You mean '39 is what percent of 12.5 ?'

So, the answer is

39/12.5 × 100
= 3.12 × 100
= 312%

So, 39 is 312% of 12.5.

(The percentage is greater because 39 is greater than 12.5)
7 0
3 years ago
I am so confused somebody please help me
Neko [114]

Answer:

26.0cm

Step-by-step explanation:

sin35=12/BD

BD=20.9cm

20.9/sin52=CD/sin102

CD=26.0

6 0
2 years ago
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