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fiasKO [112]
3 years ago
13

Using the order of operations, what should be done first to evaluate (-2)³ + 4 ÷ (-15 + 9)(3) - 4?

Mathematics
2 answers:
dybincka [34]3 years ago
8 0

Answer:

-14

Step-by-step explanation:

If you simplify the expression you get -14

levacccp [35]3 years ago
7 0

Answer:

1) add -15+9

Step-by-step explanation:

PARENTHESES

Exponent

Multiply

 or   (depends which goes first)

Divide

Add

 or    (depends which goes first)

Subtract

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A tournament is being run between two teams, A and B. This is a 2- tournament meaning that the first team to win 2 games is the
natta225 [31]

Answer:

Step-by-step explanation:

For first game PA = 1/3

For second game PA = 1/3 ( If A is not lost in first game )

 = 2/5 (If A is lost in first game )

For conclusion of game in three matches :

If A wins , the probability is

PA , PB , PA  = 1/3 X 2/3 X 3/5 = 6/45

PB , PA , PA = 2/3 X 3/5 X 1/3 = 6/45

If B wins

PA, PB, PB = 1/3 X 2/3 X 2/5 =  4/ 45

PB, PA , PB = 2/3 X 3/5 X 2/3 = 4 / 15

Total probability of conclusion of game in 3 matches

= 6/45 +6/45 + 4/45 +4/15 = 28/45

b )

For the game concluding in 2 matches , the probability are as follows

PA,PA = 1/3 X 1/3 = 1/9

PBPB = 2/3 X 2/5 = 4 / 15

Total probability

= 1/9 + 4/15 = 17/45

So PA = 1/9 / 17/45

= 5/17

5 0
3 years ago
Emma has saved £1.35 in 5p coins. How many 5p coins does Emma have?
valentinak56 [21]
To make calculation easier, we first multiply
1.35 × 100 = 135

then we need to find how many groups of 5 are there in 135.
to do so, we simply take 
135 ÷ 5 = 27

therefore, the answer is <u>27.</u>
8 0
3 years ago
Simplify the following expression.<br><br> 9 1/2 r 5/2 t<br> __________<br> rt 1/2
rosijanka [135]

Answer:

12r/t

Step-by-step explanation:

4 0
3 years ago
X2=36 what dose this mean
Rashid [163]
It means you have to find what number equals 36 but multiplying with 2
5 0
3 years ago
Read 2 more answers
Can a cubic equation have 3 complex roots? 3 real roots? ...?
trasher [3.6K]
No, a cubic equation can not have three complex roots. This is because it turns twice and one end goes to positive infinity and one end goes to negative infinity. Thus, one of these MUST cross the x-axis at some point, meaning y = 0 and a real root exists.

Yes, a cubic equation can have three real roots if it cuts the x-axis three times.
7 0
3 years ago
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