2 years ago

I will give brainliest if someone can solve! Please help.

Mathematics

1 answer:

iVinArrow [24]2 years ago

8 0

The answer is very blurry I can’t see it

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Please help me I will mark brainliest. I’m just double checking to make sure I got it correct

ycow [4]

Answer:

the length of c is 18.43909

Step-by-step explanation:

pythagorean therorem

3 0

2 years ago

Prove each statement that is true and ﬁnd a counterexample for each statement that is false. Assume all sets are subsets of a un

tekilochka [14]

Answer with Step-by-step explanation:

We are given that A, B and C are subsets of universal set U.

We have to prove that

$A\cap (B-C)=(A\cap B)-(A\cap C)$

Proof:

Let x $\in A\cap (B-C)$

Then $x\in A$ and $x\in(B-C)$

When $x\in ( B-C)$ then $x\in B$ but $x\notin C$

Therefore, $x\in( A\cap B)$ but $x\notin (A\cap C)$

Hence, it is true.

Conversely , Let $x\in(A\cap B)$ but $x\notin(A\cap C)$

Then $x\in A$ and $x\in B$

When $x\notin ( A\cap C)$ then $x\notin C$

Therefor, $x\in A\cap (B-C)$

Hence, the statement is true.

5 0

2 years ago

If there are 9 girls and 11 boys in a class, what percentage of the class are girls

viva [34]

1. Find the total number of class members
9 + 11 = 20

2. Find 9 as a percentage of 20
9 / 20 = 0.45
0.45 x 100 = 45%

<u>45% of the class are girls.</u>

6 0

2 years ago

Is this right? Please help me

aliina [53]

I think you’re right because I put the same thing on my quiz

5 0

2 years ago

The next number in the arithmetic sequence 10,23,36,? Is

rjkz [21]

It would be 49
10+13=23
23+13=36
36+13=49
I think this is right

6 0

3 years ago