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2 years ago

5

Factor completely 36x2− 121.

1 answer:

lesantik [10]2 years ago

6 0

The expression 36x² - 121 is in the 'difference of two squares form' which is (a² - b²)

Factorising (a² - b²) gives (a+b)(a-b)

Factorising 36x² - 121 gives (6x+11)(6x-11)

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You throw three darts at the board shown. each dart hits the board and scores a 22, 44, or 88. how many different total scores

-Dominant- [34]

1) 22 + 22 + 22
2) 22 + 22 + 44
3) 22 + 44 + 44
4) 44 + 44 + 44
5) 44 + 44 + 88
6) 44 + 84 + 84
7) 84 + 84 + 84
8) 84 + 84 + 22
9) 84 + 22 + 22
10) 84 + 22 + 38

10 different total scores

5 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

Find the area of the kite !!!! PLEASE HELP!!!!

Andrew [12]

ANSWER

D. 18 m^2

EXPLANATION

The area of a kite is half the product of the diagonals.

The diagonals of the kite are

3+3=6m

and

2+4=6m

The area of the kite

$= \frac{1}{2} \times 6 \times 6$

$= 3 \times 6$

$= 18 {m}^{2}$

The correct answer is D.

7 0

2 years ago

!HELP HELP HELP HELP!

liraira [26]

Answer:

615.75216 ft

Step-by-step explanation:

diameterd=2r

d=2×14

d=28

circumferenceC=2πr

C=2×π×14

C=28π

C=87.9645943

areaA=πr2

A=π×142

A=196π

A=615.75216

Hope this helps~

All the love, Ya boi Fraser :)

8 0

2 years ago

Multiple Choice question

liubo4ka [24]

My answer has to be B

3 0

2 years ago

Read 2 more answers