3 years ago

10. Extend Your Thinking Dave is packing

Mathematics

1 answer:

Musya8 [376]3 years ago

8 0

He can put 5 of each fruit into each box without exceeding 5 kilograms.

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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

3 years ago

Find the value of ....

kaheart [24]

I don't think this is middle school...

(2^8 x 3^-5 x 6^0)^-2 x ((3^-2)/(2^3))^4 x (2^28)

(256 x (1/243))^-2 x ((1/9)/(8))^4 x 268435456

1.05349794239^-2 x (0.01388888888)^4 x 268435456

0.90101623534 x 3.72108862e-8 x 268435456

8.99999997623

9

9 is your answer.

8 0

3 years ago

△PQR is rotated 180° about the origin. What is the coordinate for Q' ?

oee [108]

Answer:

Part 1:

Q’ = (2, -3)

Part 2:

R’ = (-3, -4)

Hope this helps!

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3 years ago

Using {0,1,3,4,5,6,9}, how many four-digit numbers with different digits can be produced between 4000 to 5000, if the numbers mu

bogdanovich [222]

Answer:18

Step-by-step explanation:

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3 years ago

ASAP PLEASE HELP NO LINKS

ArbitrLikvidat [17]

Answer:

a is 3,2 b is 1,-2 and c is -2,1

Step-by-step explanation:

u take the first number then you just put em together

5 0

2 years ago